JPH0574247U - Structure of ventilation windows in greenhouses - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To improve the insect repellent effect by improving the sealing property of the repellent net that covers the openings of ventilation windows in greenhouses. [Structure] An opening / closing door that opens and closes outside a ventilation window whose opening is covered with an insect screen, and a drive mechanism that is installed in a greenhouse and that opens and closes the opening and closing door via an operator arm that penetrates the insect screen , A cover plate with a small window opened at least in the movement range of the operator arm is fitted at the center of the insect arm through the operator arm, and the operator arm is capable of following and moving. Moreover, a slide plate that can completely cover the small window of the cover plate even when it is moved is fitted, and the slide plate is slidably laid on the cover plate. As a result, even if it is used over time, the insect repellent effect can be fully achieved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a greenhouse ventilation window, and particularly aims to prevent the invasion of pests due to the opening and closing of the ventilation door in a ventilation window equipped with an insect screen to ensure the completeness of the insect control effect.

[0002]

[Prior Art]

 Various types of conventionally known greenhouse ventilation windows have been developed, but generally, as shown in FIG. 2, 2 and 2 are stretched to form a roof, and a window 3 for ventilation is opened in a part of the roof. Moreover, a ventilation door 7 is provided in this window 3 by a hinge 6 at one end thereof. A hinge mechanism is configured by being rotatably supported by the door support portion 5 of the ridge wood 4, and the hinge mechanism is used as a fulcrum through the operator arm 10 and the link mechanism 9 by the drive means 8 from the solid line position in FIG. It is constructed so that it can be opened and closed freely up to the position (7a), and a net 12 for insect repellent is attached to the opening of the window 3.

As shown in FIGS. 5 and 6, the mesh frame 12 has a mesh of a size large enough to cover the entire opening surface of the window 3 in accordance with the movement locus of the operator arm 10. The nets 12 and 12 are divided and are provided with an insect net 13 inside, and the nets 12 are attached to the ends of the nets 12 facing each other, and the nets 12 are substantially contacted with each other. , 12 and the rubber plates 11 and 11 capable of closing the gap between them, and the operator arm 10 can be moved while the operator arm 10 is sandwiched between the rubber plates 11 and 11.

[0004]

[Problems to be solved by the device]

 However, in the case of the insect repellent means having the above-mentioned configuration, the position of the operator arm 10 does not always move, and particularly when the ventilation door 7 is fully opened or kept in the fully closed state, Since the operator arm 10 is likely to stay in that position for a comparatively long time, it is easy for the operator arm 10 to bend at a specific portion of the rubber plates 11 and 11 described above, and when the ventilation door 7 is opened and closed, the operator The arm 10 may be laterally shaken with respect to the moving direction of the arm 10 and may be biased to one of the two rubber plates 11 1, 11. In any of the cases described above, a partial gap 10a is formed between the rubber plates 11 and 11, and the pest invades from there.

[0005]

[Means for Solving the Problems]

 The present invention solves the above-mentioned problems in the prior art, eliminates the possibility of pest invasion due to opening and closing of the ventilation door, and aims for complete insect repellent effect. Specifically, it is a part of a greenhouse roof. A ventilation window installed on the ventilation window, the ventilation window covering the entire surface of the ventilation window, a ventilation door for opening and closing the ventilation window outside the insect screen, and a driving device installed in the greenhouse. It has a drive mechanism that opens and closes the ventilation door via an operator arm that penetrates the insect screen, and a small window at least in the movement range of the operator arm at the center of the insect arm through the operator arm. In addition to fitting the opened cover plate, the operator arm can follow the movement of the cover plate, and the small window of the cover plate can be completely moved during movement. Fit the slide plate capable of covering, moreover relates to a structure of a definitive ventilation windows in the greenhouse which is characterized by comprising by slidably superposed with respect to the cover plate.

[0006]

[Action]

 Even if the operator arm moves within the small window of the cover plate as the ventilation door opens and closes, the slide plate follows this and slides over the cover plate to constantly block the small window described above. Even if it is used over time, it will not be deformed like rubber or the like, and it will be able to sufficiently cope with the lateral movement of the operator arm in the moving direction.

[0007]

【Example】

 The concrete contents of the present invention will be described below with reference to the embodiments shown in the drawings. 21 is a pillar, 22 is a glass plate, 23 is a ventilation window, 27 is a ventilation door, 28 is a driving means, and 30 is an operator arm. , 31 is a net frame, 33 is a cover plate, and 35 is a slide plate. That is, a glass plate 22 is stretched over the upper surface of the pillar 21 to form a roof, and a ventilation window 23 is provided in a part of the roof. A ventilation door 27 is attached to the ventilation window 23, and one end of the ventilation door 27 is rotatably supported by a door support portion 25 of the ridge wood 24 by a hinge 26 to form a hinge mechanism. The hinge mechanism serves as a fulcrum for the operator. The drive means 28 installed inside the greenhouse through the arm 30 and the link mechanism 29 is configured to be openable and closable from the state of FIG. 1 to the state of FIG.

Further, the above-mentioned operator arm 30 penetrates through the opening of the ventilation window 23, and a net frame 32 is stretched over the inner surface thereof so as to avoid the movement range associated with opening and closing of the ventilation door 27. 31 is divided into two parts on the left and right sides, and a metal cover plate 33 having a small window 34 larger than the moving range of the operator arm 30 is fitted between the two parts.

Further, on the upper surface of the cover plate 33, there is provided an arm groove 35a for allowing the operator arm 30 to penetrate therethrough at a central portion thereof with some clearance, and moreover, the arm groove 35a is inserted into the operator arm 30. Then, the metal slide plate 35 that follows the movement of the operator arm 30 is slidably overlapped. The slide plate 35 is made to follow the operator arm 30 and is set to a size that can always completely cover the small window 34 of the cover plate 33 regardless of the position where it is moved.

In the above configuration, when the drive means 28 is activated to open / close the ventilation door 27 via the link mechanism 29 and the operator arm 30, the operator arm 30 is oriented in the length direction of the cover plate 33. Even when the position of the cover plate 33 moves, and even when a horizontal shake occurs in a direction crossing the moving direction, the slide plate 35 that follows the operator arm 30 always covers the entire surface of the small window 34 of the cover plate 33. Because there is no gap.

[0011]

[Effect of the device]

 As described above, the present invention is a part of the insect screen covering the ventilation window, and at the center of the penetration point of the operator arm that opens and closes the ventilation door, a small window is opened at least in the movement range of the operator arm. In addition to fitting the cover plate, the operator arm is fitted with a slide plate that can follow the movement of the arm and completely cover the small window of the cover plate when moving. Since they are slidably stacked on each other, when the ventilation door is opened or closed, there is no bending due to a bending tendency or a gap due to sideways movement of the operator arm when opening and closing the ventilation arm. You can take all possible measures.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a ventilation window of a greenhouse according to an embodiment of the present invention with a ventilation door open.

FIG. 2 is a perspective view of a main part of the ventilation window shown in FIG.

3 is a partial cross-sectional view of the ventilation window of FIG. 1 with a ventilation door closed.

FIG. 4 is a partial cross-sectional view showing the structure of a ventilation window in a conventional greenhouse.

5 is a plan view of a main part of the ventilation window in FIG.

6 is a sectional view taken along the line AA in FIG.

[Explanation of symbols]

 21 Pillar 22 Glass Plate 23 Ventilation Window 24 Building Wood 25 Support 26 Hinge 27 Ventilation Door 28 Drive Means 29 Link Mechanism 30 Operator Arm 31 Net Frame 32 Net 33 Cover Plate 34 Small Window 35 Slide Plate 35a Arm Groove

Claims (1)

[Scope of utility model registration request] 1. A ventilation window installed on a part of a greenhouse roof, the ventilation window covering the entire surface of the ventilation window, and a ventilation door for opening and closing the ventilation window outside the insect screen. With a drive mechanism that opens and closes the ventilation door via an operator arm that penetrates the insect screen by a drive device installed in a greenhouse, at the center of the insect arm net penetration point, at least the operator arm. A slide plate that fits a cover plate with a small window larger than the range of movement of the operator arm, and can follow the operator arm and can completely cover the small window of the cover plate during movement. Ventilation in a greenhouse characterized by being fitted with a plate and slidably stacked on the cover plate. Window structure.