JPH076760Y2 - Sheet tension device in greenhouses - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is designed to open and close a partition sheet in a greenhouse or the like, in particular, a seal arranged outside the roof at a temperature or the like to shield light or prevent rain. For a seat tensioning device.

<Prior Art> Conventionally, as a sheet tensioning device of this type, for example, there is a winding rod rolling type device as shown in FIG.
-24520 and Japanese Utility Model Publication No. 62-28857).

That is, a wide and long sheet 1, a take-up rod 2 made of a straight rod or a straight pipe for taking up and rewinding the sheet 1, and a support for rotatably supporting the take-up rod 2 on a partition surface 3. A means (not shown) and a motor or the like (not shown) for rotationally driving the winding rod 2 are provided, and the sheet 1 wound into a roll is rewound on the winding rod 2. It is provided so that it can be stretched on a horizontal or inclined partition surface 3.

<Problems to be Solved by the Invention> However, in such a conventional sheet tensioning device, when the sheet 1 is provided so as to partition the inside and outside of a greenhouse or the like, the sheet 1 is attached to the sheet 1 by strong wind or the like. Flapping may occur, which may damage the sheet, the device, or the like, which makes it impossible to stably carry out the intended purpose of shading and avoiding rain.

In view of the conventional circumstances as described above, the present invention has a structure in which a predetermined tension can be applied to the seat so that the seat can be stretched. It is an object of the present invention to provide a sheet tensioning device for a greenhouse or the like that can avoid rain.

<Means for Solving the Problems> Therefore, the sheet tensioning device in a greenhouse or the like of the present invention is described as follows: "The sheet whose base end edge is fixed to the immovable portion and the moving edge of the sheet are fixed, A winding rod that rewinds and rewinds between one side and the other side of the partition surface, opens and closes the partition surface, guide means that rotatably supports the winding rod, and drive that rotates the winding rod. In a sheet tensioning device for a greenhouse or the like, the guide means is partially bent downward at the other side edge of the partition surface, and the winding rod is engaged at the rewinding end point. A sheet tensioning device in a greenhouse or the like, which has a locking member that is disposed so as to be able to press and urge the sheet surface in a direction in which tension is applied to the sheet surface. ”

<Operation> In this configuration, when the winding rod is rotated / rolled in the sheet rewinding direction from one side of the partition surface in the fully opened state,
The sheet whose base edge is fixed is rewound, the sheet is stretched, and the partition surface is closed. When the winding rod reaches the other end of the partition surface, the partition surface is completely closed. Then, the winding rod is guided so as to drop downward at the other side edge of the partition surface. At this point, when the locking member is moved to the locking position, the locking member locks the winding rod and pushes the rod downward. As a result, tension is applied to the sheet, and the sheet having the closed partition surface is in a tensioned state.

Therefore, it is possible to prevent the sheet from flapping due to a strong wind or the like, so that it is possible to improve the wind resistance, and it is possible to stably carry out the intended purpose of shading and avoiding rain. In addition, the seat and the tension device are not damaged.

On the other hand, when the locking member is moved to the locking release position, the locking member is separated from the winding rod and the pressed state is released. As a result, the sheet can be wound by the winding rod, and the partition surface can be opened.

<Embodiment> Next, an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, 4 is a take-up rod made of a straight rod or a straight pipe having a circular cross section, and 6 is a sheet for opening and closing a partition surface S forming a roof surface of a greenhouse or the like. The moving end edge is fixed to the winding rod 4, and the base end edge is fixed to one side of the partition surface S to an immovable portion 7 such as a building material of a greenhouse. When the take-up rod 4 rotates, the sheet 6 is wound in a roll shape to open the partition surface S, and when rotated in the opposite direction, the sheet 6 is rewound to close the partition surface S.

A rotating shaft of a drive prime mover (not shown) capable of rotating in the forward and reverse directions is directly connected to one end of the winding rod wear 4. The drive motor constitutes the winding rod drive means of the present invention.

Reference numeral 8 is a guide rod as a means for supporting and guiding the drive motor so as to be movable along a direction parallel to the partition surface while preventing rotation of the drive motor. It is supported by a plurality of support members 9 fixed to.
The end of the guide rod 8 on the lower inclined side extends while curving downward near the other side of the partition surface S, and is fixed to a horizontally arranged support member 11 connected to the support member 9. .

Here, below the other side edge of the partition surface S, the winding rod 4 guided downward is locked at the lower end of the guide rod 8 so that tension can be applied to the sheet 6. A locking member 12 for pressing and urging is disposed. As shown by the arrow in FIG. 3, the locking member 12 is arranged so as to be selectively operable at a locking position P and a locking release position Q.

The locking member 12 is made of a resin molded product, and as shown in FIG. 4, a cylindrical portion 13 provided with a center hole 13a and the cylindrical portion 13
And a claw portion 14 protruding from the outer peripheral surface of the cylindrical portion 13 while curving along the plane perpendicular to the axis of the cylindrical portion 13. The cylindrical portion 13 is configured by joining a pair of semi-cylindrical bodies 13A and 13B provided by dividing the cylindrical body into two. The joining method may be any method, for example, as shown in FIG.
Concavo-convex portions 15, 16, 17, formed on each of the joint surfaces of the both,
It can be joined by fitting 18 together. Here, the claw portion 14 is integrally formed with the one semi-cylindrical body 13A. The claw portion 14 is formed so that its width becomes gradually smaller toward the tip, and the tip surface is formed into a curved surface.

The locking member 12 having the above configuration is fixedly attached to the rod 19 formed of a pipe body extending in parallel with the other side edge at a position below the other side edge of the partition surface.

That is, a plurality of locking members 12 are fixedly attached to the rod 19 at predetermined intervals by fitting them into the center hole 13a of the cylindrical portion 13.

Both ends of the rod 19 are fixed to the ends of the supporting member 11 and are supported near the lower ends of the supporting members 20 on both sides extending obliquely upward, and are rotatably held. Therefore,
The locking member 12 is swung by the rotation of the rod 19. The rotation of the rod 19 is performed manually or automatically.

When it is done automatically, as shown in FIG.
A rotation transmission machine 21 with a speed reducer is connected to one end of the drive transmission motor 22, which can rotate in the forward and reverse directions, and a flexible rotating wire 23 for transmitting the rotation of the drive motor 22 to the rotation transmission machine 21.
And so on.

Next, the operation and effect of the seat tensioning device according to the present embodiment having the above-mentioned configuration will be described.

When the winding rod 4 is rotated, the winding rod 4 rolls while the sheet 6 is rewound, and the sheet 6 is stretched.

Then, the winding rod 4 closes the partition surface S and then drops downward at the other edge of the partition surface S as a boundary. So rod 19
When the locking member 12 is swung to the locking position by rotating the
The curved inner surface portion of the claw portion 14 of the locking member 12 is locked to the upper portion of the outer peripheral surface of the winding rod 4 and presses the winding rod 4 downward. As a result, since the sheet 6 is pulled, tension is applied to the sheet 6 and the sheet 6 having the closed partition surface is in a tensioned state with a pin.

In this case, the tension applied to the sheet 6 can be adjusted by appropriately setting the pressing biasing force of the locking member 12 with respect to the winding rod 4.

As described above, the sheet 6 is given a predetermined tension and becomes taut, so that the sheet 6 can be prevented from fluttering due to a strong wind or the like, and the wind resistance can be improved. The purpose of this is to be able to perform stable shading and avoiding rain. Further, the sheet 6 is not damaged.

In order to wind up the sheet 6 stretched as described above, first, the rod 19 is rotated in the opposite direction to swing the locking member 12 to the locking release position Q. Thereby, the locking member
The twelve claws 14 are separated from the upper portion of the outer peripheral surface of the winding rod 4 to release the pressing bias of the winding rod 4 and retract from the upper position of the winding rod 4. Then, in this state, the winding rod 4 is rotated in the reverse direction to open the partition surface.

Reference numeral 24 in FIG. 3 denotes a micro switch which is turned on by contacting the locking member 12 when the locking member 12 is swung, and whether the locking member 12 is in the locked state or locked. This is for determining whether or not it is in the released state and for obtaining information for not hindering the operation of the winding rod 4.

In the above embodiment, the locking member 12 is formed of the cylindrical portion 13 and the claw portion 14, and is rocked to be locked to the winding rod 4. However, the structure and operation of the locking member 12 are not limited thereto.

Further, providing a plurality of locking members is not limited.

<Effects of the Invention> As described above, according to the present invention, in a rolling type sheet tensioning device used in a greenhouse or the like, a closing operation is performed by simply engaging a locking member with a winding rod. A predetermined tension can be applied to the sheet at the time. Therefore, it is possible to prevent the sheet from fluttering due to strong wind, etc., and to improve wind resistance as an outdoor sheet such as a light-shielding sheet or a rain-preventing sheet. Further, the structure is simple, the assembly is easy, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a sheet tensioning device in a greenhouse or the like according to the present invention, FIG. 2 is a perspective view showing a driving structure of a locking member in the same embodiment, and FIG. FIG. 4 is an enlarged side view showing the mounting state of the locking member in FIG. 4, FIG. 4 is a view showing the structure of the locking member of the above, and FIG.
FIG. 5B is a side view, and FIG. 5 is a schematic view showing an example of a conventional sheet tensioning device. 4 ... Winding rod 6 ... Sheet 7 ... Immovable part 8 ... Guide rod 12 ... Locking member S ... Partition surface

Claims (1)

[Scope of utility model registration request] 1. A sheet whose base edge is fixed to a non-moving part and a moving edge of the sheet are fixed, and the sheet is rewound and rewound between one side and the other side of the partition surface. A sheet tensioning device in a greenhouse or the like, comprising: a winding rod that opens and closes the winding rod; guide means that rotatably supports the winding rod; and drive means that rotates the winding rod. A part is bent downward at the other side edge of the partition surface, and the winding rod is locked at the rewinding end point and can be pressed and biased in the direction of applying tension to the seat surface. Sheet tensioning device in a greenhouse or the like having the locking member described above.