JPH0551U - Tightening device for a press band for fixing a cover sheet in a greenhouse - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the adjustment of the tightening condition of the holding band for fixing the cover sheet of the greenhouse. A rotary shaft 12 arranged along a direction substantially orthogonal to the opening / closing direction of the cover sheet 4 is rotatably supported by a bearing member 11. A band attachment 14 having a predetermined length is provided, which has one end pressed to the end of the band 2 and the other end connected to the rotary shaft 12. Since the band attaching tool 14 is configured to have a predetermined length, the pressing band 2 is rolled or unwound at a stretch by the rotating operation of the rotary shaft 12. Therefore, the tightening degree of the presser band 2 can be easily adjusted, and the opening / closing operation of the covering sheet 4 can be easily performed.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a tightening / loosening device for adjusting the tightening condition of a greenhouse covered with a flexible plastic covering sheet by winding and rewinding a holding band arranged to hold down the covering sheet.

[0002]

[Prior Art]

 Conventionally, when forming a simple greenhouse such as a glass room or a vinyl house, in order to prevent the covering sheet from being blown up or blown up by the wind, the covering sheet is brought into contact with the outer surface of the covering sheet, In addition, a fixing presser band is arranged along the opening / closing direction of the covering sheet. Then, usually, fixing tools are provided at arbitrary immovable portions near the base end portion and the tip end portion of the covering sheet, and the end portions of the presser band are directly connected to the fasteners so as to connect the presser band. The tensile covering sheet was pressed and fixed.

[0003]

[Problems to be solved by the device]

 However, when the holding band is arranged in such a pulled state, the winding rod for winding the covered sheet is sandwiched between the frame material forming the greenhouse and the holding band for fixing. It will be. Therefore, each time the cover sheet is taken up and rewound by the take-up rod to open and close the greenhouse, the presser band must be removed from the fixture each time and reattached to the fixture after opening and closing the cover sheet. There was a point.

The present invention has been made to solve such a problem, and is for fixing a cover sheet of a greenhouse in which the degree of tightening of the holding band to the cover sheet can be adjusted very easily when opening and closing the cover sheet. It is an object of the present invention to provide a tightening / loosening device for a press band.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, a fastening device for a pressing band for fixing a covering sheet of a greenhouse according to the present invention is provided with an outer surface of a covering sheet of a greenhouse made of a flexible plastic material. A device for tightening or loosening the cover sheet fixing presser band which is abutted against the cover sheet and arranged along the opening / closing direction of the cover sheet by winding or rewinding, and is arranged at an appropriate position. A rotating shaft supported by a bearing member and arranged along a direction substantially orthogonal to the opening / closing direction of the cover sheet, one end of which is connected to the end of the pressing band and the other end of which is connected to the rotating shaft. It is characterized in that it is configured to have a band attachment of a predetermined length that is connected and arranged.

[0006]

[Action]

 When performing the opening / closing operation of the covering sheet, the rotary shaft is rotated by a predetermined amount in the direction in which the holding band is loosened, that is, in the rewinding direction of the holding band. On the other hand, when pulling the presser band after opening and closing the cover sheet, the rotary shaft is rotated in the reverse direction to the specified amount in the winding direction of the presser band. At this time, since the presser band is connected to the rotary shaft via the band attachment of a predetermined length, if the presser band is rotated half a turn, the presser band of about twice the length of the band attachment is wound or It is rewound.

[0007]

【Example】

 Hereinafter, a tightening / loosening device for a press band for fixing a cover sheet of a greenhouse according to the present invention will be described in more detail with reference to an embodiment shown in the drawings. In the figure, 1 is a tightening / loosening device, 2 is a holding band, and 4 is a covering sheet. The greenhouse shown in the drawing is bent into a substantially U-shape on the front, and both end portions 6a and 6b are immovable portions, in this embodiment, a plurality of frame members 6 embedded and fixed in the ground 3. It is formed by. The covering sheet 4 is arranged so as to cover the frame member 6 from the outside, and is opened / closed between one end portion 6a and the other end portion 6b of the frame member 6.

The tightening / loosening device 1 is configured to include a bearing member 11, a rotary shaft 12, an operation handle 13, and a band attachment 14. The bearing member 11 includes a tubular bearing portion 11a and a support portion 11b protruding from the bearing portion 11a. The support portion 11b is embedded in the ground 3 adjacent to one end portion 6a of each frame member 6. As a result, they are fixedly arranged.

The rotating shaft 12 is formed in a tubular shape having a predetermined length, and is rotatably inserted in and supported by the bearing portion 11 a of the bearing member 11. As a means for rotationally driving the rotary shaft 12, for example, as shown in the drawing, it can be manually rotated by an operation handle 13 connected to the end thereof. In this case, it goes without saying that a motor (not shown) may be connected to electrically rotate the motor.

The band attachment 14 is composed of a sandwiching portion 14a capable of sandwiching the rotating shaft 12 and a band connecting plate portion 14b having a predetermined width and length. The sandwiching portion 14a is expanded to rotate the rotating shaft. While holding 12 together, one end 2a of the pressing band 2 is tied to a mounting hole 14c formed in the band connecting plate 14b. In this case, the sandwiching portion 14a may be formed in a semi-tubular shape, and the rotating shaft 12 may be sandwiched by joining the two together by using a bolt or the like as a pair. The band attaching tool 14 has a predetermined length and may have any structure as long as it can be connected to both the rotating shaft 12 and the pressing band 2, and is not limited to such a structure.

Here, the pressing band 2 has its one end 2a connected to the band attachment 14 as described above, and is hung around the outer periphery of the covering sheet 4, and the other end 2b of the frame member 6 is attached. It is tied and fixed to a fixture 5 of an arbitrary shape that is embedded and fixed adjacent to the other end 6b.

Further, the cover sheet 4 has its front end portion 4a wound around and fixed to a winding rod 41 of an appropriate diameter, and the other end portion 4b fixed near the other end portion 6b of the frame member 6. By rotating the winding rod 41 with a rotation handle 42 attached to the end of the winding rod 41, the winding rod 41 can be opened and closed along the frame member 6. It is needless to say that the winding rod 41 may be electrically driven instead of being manually rotated by the rotation handle 42.

Next, the operation of the fastening / loosening device 1 for the pressing band for fixing the covering sheet of the greenhouse according to this embodiment will be described. First, when the rotating handle 42 is rotated to open or close the covering sheet 4 from a predetermined position, the pressing band 2 is loosened. That is, the operation handle 13 is rotated in the opening direction of the covering sheet 4, that is, the rewinding direction of the pressing band 2. As a result, the pressing band 2 is loosened and the tightening force on the covering sheet 4 is reduced. At this time, according to this embodiment, when the presser band 2 is not wound around the rotating shaft 12 and the band connecting plate portion 14b is positioned substantially directly below the rotating shaft 12, the band attaching tool 14 Has a band connecting plate portion 14b of a predetermined length, and therefore, when the rotating shaft 12 is rotated by half, the presser band 2 is about twice as long as the length L of the band attaching tool 14. Loosen (see Figure 2). Therefore, the pressing band 12 is in an extremely slackened state, so that the cover sheet 4 can be easily opened and closed.

On the other hand, in order to open or close the cover sheet 4 by a predetermined amount and press and fix the cover sheet 4 in that state, the band connecting plate portion 14 b is operated almost directly above the rotary shaft 12 by the operation handle 13. Contrary to the above, the rotating shaft 12 is rotated in the closing direction of the covering sheet 4, that is, in the winding direction of the pressing band 2. When it is rotated a half turn, the band connecting plate portion 14b is rotationally moved from almost right above the rotary shaft 12 to right below the rotary shaft 12, as shown by the arrow in FIG. It is pulled in at a stretch for twice the length, which makes me nervous. Thereby, the covering sheet 4 can be pressed down.

Usually, the cover sheet 4 can be pressed by such an operation, but with this alone, the cover sheet 4 may be blown up in a strong wind. Therefore, in this case, by further rotating the rotary shaft 12 in the closing direction of the covering sheet 4, the presser band 2 is wound around the rotary shaft 12, so that the tension of the presser band 2 can be further increased. ..

[0016]

[Effects of the Invention] The presser band tightening / loosening device for fixing the cover sheet of the greenhouse according to the present invention can tighten or loosen the press band by only slightly rotating the rotating shaft, and the operation is easy and quick. Can be done to. In addition, since the presser band is connected to the rotary shaft through the band attachment of a predetermined length, the amount of winding or rewinding of the presser band accompanying the rotation is large. Therefore, when the pressing band is loosened, the cover sheet can be smoothly opened and closed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a tightening / loosening device for a cover band for fixing a cover sheet of a greenhouse according to the present invention is attached to the greenhouse.

FIG. 2 is a side view for explaining the operation of the band attaching tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tightening / loosening device 11 Bearing member 12 Rotating shaft 13 Operation handle 14 Band attachment 2 Presser band 4 Cover sheet 6 Frame member

Claims (1)

[Claims for utility model registration] 1. Presser for fixing a covering sheet, which is in contact with the outer surface of the covering sheet of a greenhouse made of a flexible plastic material and is arranged along the opening / closing direction of the covering sheet. A device for tightening or loosening by winding or unwinding a band, which is supported by a bearing member arranged at an appropriate position and arranged along a direction substantially orthogonal to the opening / closing direction of the covering sheet. A rotating shaft, and a band attachment having a predetermined length, one end of which is connected to an end of the pressing band and the other end of which is connected to the rotating shaft. A device for tightening and tightening a press band for fixing a cover sheet of a greenhouse.