JP2003153634A - Skylight opening and closing mechanism - Google Patents

Abstract

(57) [Summary] [Problem] To improve ventilation efficiency and reduce opening / closing labor. A guide roller (30) rotatably supported on the back of a skylight (20) is provided.
The guide rail 40 which engages with 0 is disposed along the skylight opening / closing direction on the ceiling. Then, the rack 50 was fixedly arranged on the skylight 20 along the opening and closing direction, a pinion 60 meshing with the rack 50 was arranged, and the pinion 60 was connected to a rotating shaft 70 connected to a drive source. Therefore, when the pinion 60 rotates, the skylight 2 fixed to the rack 50
0 can move in the sliding direction together with the rack 50 to completely open the ventilation opening formed in the ceiling and reduce the labor for opening and closing the skylight 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skylight opening / closing mechanism for opening / closing a skylight installed in a greenhouse.

[0002]

2. Description of the Related Art Greenhouses, which are covering facilities for plant cultivation,
In order to adjust temperature and humidity, ventilation openings are formed on one or both sides of the ceiling with the purlin as a boundary, and a skylight is provided to open and close the ventilation openings. This skylight is usually about 30 degrees so that the lower end of the skylight is centered on the upper end pivotally supported near the purlin, and the lower end is flipped upward.
It is configured to open about 45 degrees (for example,
See Japanese Patent Laid-Open No. 8-13906).

[0003]

However, in the conventional skylight, the opening angle is limited as described above, and when the skylight is opened, the skylight is rebounded at the angle described above with respect to the inclined surface of the ceiling portion, and ventilation is performed. Existing above the opening for use.
As a result, the popped-up skylights serve as a ventilation barrier, which hinders ventilation. Also, with conventional skylights, the skylight will be left in the state of being flipped up as described above during the period when ventilation is required.However, in such a state, it may be damaged by the wind and damage the skylight and the ceiling of the greenhouse. ing. Furthermore, in the above method of splashing the skylight, the skylight is lifted up by lifting it around the upper end pivotally supported by the purlin, so that the skylight is required especially when a large ventilation opening is required. The weight of itself has become large and the labor required for opening and closing has been great.

The present invention has been made in view of the above-mentioned circumstances, and the ventilation efficiency of a greenhouse can be improved more than before by opening the skylight so as not to interfere with the ventilation function. It is an object of the present invention to provide a skylight opening / closing mechanism that does not damage the skylight and the ceiling of the greenhouse and that can reduce the labor required to open and close the skylight.

[0005]

In order to solve the above-mentioned problems, the present invention according to claim 1 is a skylight opening / closing mechanism for opening / closing a ventilation opening formed in a ceiling part of a greenhouse, the lower part of the skylight. And a guide roller that supports the skylight and is fixed in the ceiling along the opening / closing direction of the skylight, and engages with the guide roller to guide the skylight moving by the drive device in the opening direction or the closing direction. Provided is a skylight opening / closing mechanism including a guide rail. In the present invention according to claim 2, the guide rail is
The skylight opening / closing mechanism according to claim 1, wherein the skylight opening / closing mechanism is formed integrally with the hanging lumber that constitutes the ceiling of the greenhouse. According to a third aspect of the present invention, the drive device is connected to a rack fixed to the ceiling portion or the skylight along the opening and closing direction, and a rotary shaft that meshes with the rack and is connected to a drive source. A skylight opening / closing mechanism according to any one of claims 1 and 2, wherein the skylight opening / closing mechanism is configured by a pinion rotatably arranged. According to a fourth aspect of the present invention, there is provided the skylight opening / closing mechanism according to the third aspect, wherein the rack is fixed to the back surface of the skylight, and the pinion is disposed on the ceiling portion. In the present invention according to claim 5, the skylight opening / closing mechanism according to claim 3 or 4, wherein the rack is integrally fixed to a back surface of a corrugated member of the skylight arranged along the opening / closing direction. I will provide a. In a sixth aspect of the present invention, between a pair of pinion frames provided adjacent to each side surface of the pinion and provided with projecting plate portions that respectively extend so as to project above the side surfaces of the pinion. In the above, each of the rollers that accommodates the pinion and that is arranged inside each of the projecting plate portions of each of the pinion frames is provided in each of the guide grooves that are formed on each side surface of the rack along the longitudinal direction. The skylight opening / closing mechanism according to any one of claims 3 to 5, wherein the skylight opening / closing mechanism engages so as to be rollable along the skylight. In the present invention according to claim 7, the ventilation opening is formed adjacent to the purlin of the ceiling portion, is positioned below the purlin plate when closed, and is on the front end side in the closing direction. 7. A skylight opening / closing mechanism according to any one of claims 1 to 6, wherein a closing member for substantially closing a gap between the outer frame material of the skylight and the building wrapping plate is attached. provide. The invention according to claim 8 is characterized in that a sealing member made of an elastic material is attached to at least one of the ridge packing plate or the outer frame member and the closing member. 7. A skylight opening / closing mechanism described in 7. According to the present invention of claim 9, in the outer frame member on the rear end side in the closing direction of the skylight,
A closing member for closing substantially a gap between the outer frame member and a peripheral portion of the ventilation opening at the time of closing the closing member is attached. The above described skylight opening / closing mechanism is provided. The invention according to claim 10 is characterized in that a sealing member made of an elastic material is attached to at least one of the closing member and the peripheral portion of the ventilation opening. To provide a skylight opening / closing mechanism.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail based on the embodiments shown in the drawings. 1 and 2 are
It is a schematic perspective view which shows the ceiling part 11 of the greenhouse 10 incorporating the skylight opening and closing mechanism of this embodiment, FIG. 1 shows the state which closed the skylight 20, and FIG. 2 shows the state which opened the skylight 20. The ceiling part 11 is formed so as to be inclined toward both sides by beams 11a having a mountain-shaped truss structure provided at predetermined intervals along the longitudinal direction of the greenhouse 10. Also, each beam 11
A purlin 11b that connects the tops of a is provided, and
A purlin 11c disposed between the beams 11a and substantially parallel to the purlin 11b, and a ceiling portion 11 which is substantially orthogonal to the purlin 11c.
And rafter 11d arranged along the direction of inclination. In addition, a plurality of purlins 11c are arranged at predetermined intervals along the inclination direction of the ceiling portion 11, and the rafters 11d are the greenhouses 1.
A plurality of them are arranged at predetermined intervals along the longitudinal direction of 0. The structure of these ceiling parts 11 is the same as the conventional one,
The present invention is not limited to the double roof type shown in the drawings, and the present invention is applicable to a ceiling part having various structures or shapes of conventionally known greenhouses, for example, a single roof type, a scalene type, a multi-story type ceiling, or the like. It is applicable to the department.

In this embodiment, adjacent to the purlin 11b,
Specifically, the ventilation opening 12 is formed between the purlin 11c immediately adjacent to the purlin 11b and the next purlin 11c adjacent in the inclination direction. The ventilation opening 12 is the greenhouse 1.
Although it can be formed over the entire length in the longitudinal direction of 0, in the present embodiment, the length in the longitudinal direction is made shorter than the entire length in the longitudinal direction of the greenhouse 10 and is substantially along the longitudinal direction of the greenhouse 10 in a plan view. A plurality of rectangular shapes are formed. As a result, a non-open so-called fit-and-kill portion 13 is provided between the ventilation openings 12, 12 that are adjacent to each other in the longitudinal direction. A portion of the ceiling portion 11 excluding the ventilation opening 12 is covered with a covering material (not shown) such as a plastic film or glass, including the fit-and-kill portion 13.

The skylight 20 is processed to have a length that is substantially the same as or slightly longer than the length of the ventilation opening 12 in the longitudinal direction, and is substantially parallel to the purlin 11b and in the width direction of the ventilation opening 12. It is provided with two outer frame members 21 and 22 that are arranged at intervals that are substantially the same as or slightly longer than the length. Between the two outer frame members 21 and 22, a corrugated member 23 is provided so as to extend substantially parallel to the rafter 11d. Also, this San member 23
Are arranged along the longitudinal direction of the outer frame members 21 and 22 at predetermined intervals, and a plastic film, glass, or the like is coated between the inner members 23 and 23 and between the outer frame members 21 and 22. The material is arranged.

In this skylight 20, the outer frame member 21 arranged on the upper side in the inclination direction of the ceiling portion 11 slides in the direction away from the position close to the purlin 11b to open the ventilation opening 12. At the time when the outer frame member 21 slides farthest from the purlin 11b, the ventilation opening 12 is located above the skylight 2 to prevent ventilation.
The entire surface is opened without 0 (see FIG. 2). Next, the skylight opening / closing mechanism of this embodiment that operates the skylight 20 in this manner will be described.

As shown in FIGS. 3 and 4, this skylight opening / closing mechanism includes a guide roller 30 rotatably fixed to the rear surface of the corrugated member 23 of the skylight 20, and the guide roller 3.
It is configured to have a guide rail 40 that engages with 0 to guide the skylight 20 in the opening direction and the closing direction, and a drive device. The guide roller 30 includes a roller casing 31 having a substantially rectangular cross section.
And the shaft pins 32a and 32b and the rollers 33a and 33b,
It is composed of 33c and 33d. The reference numeral 36 is
The roller casing 31 is a roller mounting plate provided with a vertical portion 35a that secures a predetermined height for smoothly sliding the skylight 20, and the roller casing 31 includes the roller mounting plate 3
It is fixed to the lower end of 6. Also, the shaft pins 32a, 32b
Is supported by the roller casing 31 and the reinforcing member 34, and 33a, 33
b, 33c and 33d are rotatably arranged. As described above, in this embodiment, the pair of two rollers 33a and 33b and the pair of rollers 33c and 33d are arranged symmetrically in the longitudinal direction so that the sliding movement of the skylight 20 can be performed more stably and smoothly. There is a guide rail 4 which will be described later
It is needless to say that the number and shape of the rollers to be arranged are not limited at all as long as they can be engaged with 0 and smoothly slide the skylight 20. The roller mounting plate 36 and the guide roller 30 having the above-mentioned configuration are provided at the bottom with the skylight 20.
In order to be able to support the rear side of the skylight 20 in a well-balanced manner, that is, in the present embodiment, it is of course symmetrically arranged on the backsides of the corrugated members 23 on both sides of the skylight 20. However, FIG. 4B shows only one side. The guide rollers 30 may be provided so as to correspond to all the corrugated members 23, but considering the size and weight of the skylight 20, for example, every other one of the corrugated members 23,
It can be provided in such an arrangement. A guide rail 4 to be described later is provided at the lower end of the roller casing 31.
An engaging piece 35 that engages with the lower portion of the roller receiving portion 41 of 0 and prevents the guide roller 30 from being removed from the guide rail 40 is provided.

The guide rails 40 are fixed in the opening / closing direction of the skylight 20, that is, between the purlins 11c in the ceiling of the greenhouse 10, and are fixed along the inclination direction of the ceiling 11. Further, by engaging with the guide roller 30, the skylight 20 is guided in the opening direction or the closing direction. Specifically, the guide rail 40 includes a base portion 41, vertical portions 42a and 42b standing upright from the base portion 41, and roller receiving portions 43a and 43a.
It comprises 43b. The guide rail 40
As shown in FIG. 3, by forming it integrally with the rafter 11d, the number of members constituting the greenhouse 10 can be reduced, and it is convenient for the work of installing the guide rail 40. Further, the guide rail 40 is arranged below the corrugated member 23 provided with the guide roller 30. Therefore, as described above, when the guide rollers 30 are provided every other one with respect to the sandwiching member 23, the guide rails 40 are also provided correspondingly, but in the present embodiment, the skylight is used. It is provided so as to correspond to the corrugated members 23 on both sides of 20 (see FIG. 2).

The reference numeral 85 shown in FIG. 3 (a) indicates the guide rail 40 and the corrugated member 2 which is disposed closest to the side.
A rain shelter member for preventing rain and wind from blowing into the greenhouse through the gap between the rain shield and the space 3. This rain shelter 85
Covers the upper part of the corrugated member 23 and then passes outside the vertical portion 36a of the roller mounting plate 36 to reach the guide rail 4
It is made of a plate-shaped member formed so as to cover the upper surface of 0, has a length substantially the same as that of the sandwich member 23, and prevents rain and wind from entering when the skylight 20 is closed.

FIG. 5 and FIG. 6 show a drive device used in the skylight opening / closing mechanism according to the present embodiment. The drive device is not limited to the one shown in the figure, and is driven manually or electrically using, for example, a pulley arranged at an appropriate place of the greenhouse 10 and a chain fixed to the pan member 23 of the skylight 20. Although any means can be used, in the present embodiment, the drive device is the skylight 20.
The rack 50 is fixed to the back side of the sliding member 23, and the pinion 60 meshes with the rack 50. As shown in FIGS. 3 (a) and 3 (b), the rack 50 has a mounting portion 51 having a substantially C-shaped cross-section from the top and a lower surface of the mounting portion 51 and a substantially I-shaped cross-section, and a central wall portion. A guide portion 52 having guide grooves 52a and 52b formed along the longitudinal direction of both side surfaces sandwiching 52c, and a plurality of tooth portions 53 protruding below the guide portion 52 and formed at a predetermined pitch along the longitudinal direction. And are integrally molded. Then, through the screw insertion hole formed in the attachment portion 51, the bolt 54 and the nut 55 fix the pin member 23. The mounting portion 51 having a substantially C-shaped cross section is provided in order to secure a working space for fixing to the corrugated member 23 with the bolt 54 and the nut 55.
It is not essential when the substantially I-shaped guide portion 52 and the tooth portion 53 are integrally formed. The pinion 60 is arranged in a range surrounded by the ventilation opening 12 and below the skylight 20, and a predetermined number of the pinions 60 are arranged so that the teeth 61 of the pinions 60 mesh with the teeth 53 of the racks 50. Pinion 60
The bearing cylinder 62 of the rotating shaft 70 is integrally provided in the bearing cylinder 62. The rotating shaft 70 inserted into the bearing cylinder 42 is provided with a screw hole penetrating the peripheral wall of the bearing cylinder 62 in the thickness direction. It is fixed by a bolt 62a screwed together. In addition,
The rotary shaft 70 is connected to a drive source such as a motor (not shown), and is rotated by driving the drive source.

The pinion 60 is housed so as to be sandwiched between a pair of pinion frames 63 and 64 made of a plate member. The one pinion frame 63 is arranged adjacent to the side surface of the pinion 60 on the side where the bearing cylinder 62 is not projectingly provided, and the other pinion frame 64 is
The bearing cylinder 62 is inserted into the through hole 64a, and the pinion 60
It is placed on the opposite side of the pin. Pinion frame 6
3, 64 has a length such that the lower end portion thereof projects below the pinion 60, and the lower end portions thereof are rivets 65.
Are connected by.

At the upper part of each pinion frame 63, 64, projecting above each side surface of the pinion 60, bent outward at a substantially right angle, and then further bent at a substantially right angle,
The rack 50 has protruding plate portions 63b, 64b extending so as to be positioned on both sides of the substantially I-shaped guide portion 52.
The rivet 6 is attached to each of the projecting plate portions 63b and 64b.
6a and 67a are attached so as to penetrate from the outside to the inside, and the rollers 66 and 67 are attached to the shaft portion protruding inward.
Is rotatably attached. And each roller 6
6, 67 are rollably engaged along the guide grooves 52a, 52b.

Pinion frames 63 and 64 are arranged on both side surfaces of the pinion 60, and projecting plate portions 63b and 63b of the pinion frames 63 and 64 are arranged.
A roller 66 rotatably attached to 64b,
67 engages rotatably along the guide grooves 52a and 52b of the rack 50, so that when the rack 50 moves due to the rotation of the pinion 60, the pinion 60 and the rack 50 are relatively left and right. It is possible to prevent the power transmission from being hindered by shifting to.

The guide rollers 30 provided on the skylight 20 are connected to the support members 23 on both sides of the skylight 20.
The guide rails 40 corresponding to the above are engaged so as to be rollable. Thereby, the guide roller 30
Moves along with each guide rail 40 as the skylight 20 moves. The skylight 20 has each guide roller 30.
Since it is supported by, the total weight in the vertical direction generated by the weight of the skylight 20 itself does not become a rotational resistance of the pinion 60, and therefore the power load of a drive source such as a motor (not shown) for driving the rotating shaft 70. Can be reduced. In addition, the shift of the skylight 20 to the left and right during movement is not only prevented by the pinion frames 63 and 64 as described above, but also regulated by the engagement between the guide rail 40 and the guide roller 30. The skylight 20 will open and close extremely smoothly.

Here, the greenhouse 10 is provided with a building wrapping plate 11e above the purlin 11b constituting the ceiling portion 11, but the skylight 20 is closed at the time of closure as shown in FIG. It is preferable that the outer frame member 21 on the upper side in the inclination direction, which is the front end side in the direction, is provided so as to be housed in the space below the ridgeboard 11e. As a result, rain and the like that enter through the gap between the outer frame member 21 of the skylight 20 and the purlin 11b when the door is closed are blocked.

However, in order to more effectively block the intrusion of rain and the like, it is preferable that the gap between the outer frame member 21 and the back surface of the building wrapping plate 11e be smaller, and as shown in FIG. It is preferable to provide a closing member 90 made of a substantially C-shaped metal plate or the like projecting toward the back surface of the ridgeboard 11e on the upper portion of the frame member 21 along the length direction of the outer frame member 21.
When the closing member 90 formed into a substantially C-shape as shown in FIG. 6 is used, if the opening is arranged so as to face outward (downward in the inclination direction), rain can be effectively introduced. Can be prevented.

Even if such a closing member 90 is provided, as long as the outer frame member 21 of the skylight 20 can freely move in and out of the space below the ridge packing plate 11e, if both are made of metal, A slight gap remains between the back surface of the packaging plate 11e and the closing member 90. Therefore, in order to close this gap as well, at least one of the upper portion of the outer frame member 21 and the ridge wrapping plate 11e, preferably both as shown in FIG.
Both of them are preferably provided with sealing members 91 and 92 made of an elastic material such as a rubber plate and a synthetic resin plate extending in the longitudinal direction. It should be noted that the sealing members 91, 92 contact each other at some point during the closing operation of the skylight 20, or preferably,
The sealing members 91 and 92 are provided in such a length and positional relationship that they are in contact with each other in a completely closed state. As a result, the skylight 2
When 0 is closed, it is possible to almost certainly prevent rain and wind from entering from the outside.

The closing member 90 is not limited to the embodiment shown in FIG. 6, but as shown in FIG. 7B, the skylight 20.
Instead of the outer frame material 21 of FIG. At this time,
When the sealing members 91 and 92 made of an elastic material are provided, they are provided on the lower portion of the closing member 90 and the upper portion of the outer frame member 21.

Further, the closing member 90 is not limited to the one made of steel, but is made of an elastic material itself, and in the case of FIG. 6, it is different from the back surface of the ridge packing plate 11e in the case of FIG. 7 (b). Alternatively, the tip of the closing member 90 may directly contact the upper portion of the outer frame member 21.

Further, as shown in FIG. 7A, for example, a water receiving portion 83 having an open upper surface can be provided at the lower portion of the outer frame member 21 of the skylight 20. As a result, even if rainwater enters from a slight gap between the building wrapping plate 11e, it can be received and prevented from falling into the greenhouse 10.

On the other hand, the ventilation opening 12 is also formed in the outer frame member 22 on the lower side in the inclination direction which is the rear end side of the skylight 20 in the closing direction.
It is preferable to provide a closing member 90 that substantially closes the gap between the lower peripheral portion in the inclination direction and the peripheral portion. In the mode shown in FIG. 8, the lower portion of the outer frame member 22 is extended downward as it is, and the first plate portion 90a is bent outward at a substantially right angle, and downward from the end portion of the first plate portion 90a. A closing member 90 having a structure including a second plate portion 90b bent at a substantially right angle is adopted. As a matter of course, the outer frame member 22 may be integrally formed in this way, or the closing member 90 may be formed of a member different from the outer frame member 22.

A second plate portion 90b of the closing member 90 and a frame member 93 (for example, a rafter 11d) arranged around the ventilation opening portion 12 facing the second plate portion 90b.
It is preferable to provide sealing members 91 and 92 for closing the slight gap between them. The sealing members 91 and 92 are made of an elastic material like the sealing members 91 and 92 provided on the outer frame member 21 or the ridgeboard 11e,
It is provided on at least one of the second plate portion 90b and the frame member 93, and is brought into contact with each other at any time point of the closing operation or at the time point when the closing operation is completed. As a result, it is possible to almost completely prevent rain and wind from entering through the gap between the outer frame member 22 arranged on the lower side in the inclination direction and the peripheral portion of the ventilation opening 12 when the skylight 20 is closed.

Further, it is preferable to form a water receiving portion 93a having a concave cross section below the outer frame member 22, for example, in the frame member 93. The water receiving portion 93a can receive the dew condensation water that is generated on the back surface of the skylight 20, flows along the inclination direction, and then drops downward when reaching the outer frame member 22.

According to this embodiment, when the skylight 20 is in the closed state, the drive source (not shown) is activated to rotate the rotary shaft 70 in one direction (open direction). This allows
The pinion 60 rotates in the same direction, and its tooth portion 61 meshes with the tooth portion 53 of the rack 50.
Moves to the lower side of the ceiling portion 11 in the inclination direction. Rack 50
Is fixed to the pan member 23 of the skylight 20, and as a result, the whole skylight 20 moves downward in the tilt direction,
The ventilation opening 12 is opened. At this time, according to the present embodiment, the pinion frames 43 and 44 are adjacent to both side surfaces of the pinion 60, and the rollers 46 and 47 mounted inside the pinion frames 43 and 44 are attached to the rack 50.
Guide grooves 52a, 52b formed along the longitudinal direction of the
Since the rack 50 is engaged with, the rack 50 rolls in the guide grooves 52a and 52b as the rack 50 moves. In addition, the skylight 20,
Since it is supported by each guide roller 30 that rolls on the guide rail 40, the skylight 20 on the pinion 60
The load due to the own weight of the rotary shaft 70 can be reduced.
The power load on a drive source such as a motor for driving the motor is reduced.

When the skylight 20 moves to the lower limit position, the ventilation opening 12 is completely opened. However, the skylight 20 is located on the ceiling portion 11 which is lower than the ventilation opening 12 in the inclination direction. Therefore, it does not serve as a barrier that obstructs the ventilation above the ventilation opening 12, and the skylight 20 is not swung by the wind (see FIG. 2). Therefore, the ventilation opening 1
Invasion of outside air through 2 and discharge of air in the greenhouse 10 are performed very effectively, and the skylight 20 and the greenhouse 1
There is no damage to the purlins 11b, etc. that make up 0.

On the other hand, when closing the skylight 20 from the open state, the drive source is activated to rotate the rotary shaft 50 in the opposite direction (closing direction). Thereby, the pinion 60 rotates in the same direction, the rack 50 moves toward the upper side in the inclination direction, the skylight 20 moves in the same direction, and the outer frame member 21 on the upper side in the inclination direction moves the roof frame plate 11 to the ridgeboard plate 11. Move until it is housed in the space below.

The outer frame member 21 is housed in the space below the building wrapping plate 11, and when the outer frame member 21 moves to the upper limit position, the ventilation opening 12 is closed. At this time, according to the present embodiment, the closing members 80 and 90 are arranged on the outer frame member 21 located on the upper side in the tilt direction and the outer frame member 22 located on the lower side in the tilt direction, respectively. Therefore, it is possible to effectively prevent intrusion of rain and wind when the skylight 20 is closed.

The control of the drive source for rotationally driving the pinion 60 may be manually switched by the operator. For example, a rainfall sensor is arranged at an appropriate position on the ceiling 11 to detect rainfall. Then, the pinion 60 may be rotated in the closing direction of the skylight 20 by driving the driving source. Alternatively, for example, a temperature sensor may be arranged in the greenhouse 10 to rotate the pinion 60 in the opening direction of the skylight 20 by driving the drive source when it is detected that the temperature exceeds a predetermined temperature. it can. Furthermore, these sensors can be combined and controlled, or can be linked with other sensors.

[0032]

The skylight opening / closing mechanism of the present invention slides the skylight supported by the guide rollers over the guide rails arranged along the ceiling surface to open the ventilation opening formed in the ceiling. It is configured to open and close. Therefore,
Above the open ventilation opening, there is no skylight that obstructs the ventilation action, and the ventilation efficiency of the greenhouse can be improved more than before, and the windshield and the greenhouse ceiling are not damaged. It is possible. In addition, the skylight is
Since it is supported by the guide roller that is rollably arranged on the guide rail, it is possible to reduce the labor required for opening and closing the skylight.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a ceiling portion of a greenhouse according to an embodiment of the present invention, in which a skylight is closed.

FIG. 2 is a schematic perspective view showing a ceiling portion of a greenhouse according to an embodiment of the present invention, in which a skylight is open.

FIG. 3 is a diagram for explaining a configuration of a guide roller, a guide rail, and a drive device that constitute the skylight opening / closing mechanism used in the above embodiment.

FIG. 4 (a) is a front view showing a guide roller engaged with a guide rail, and FIG. 4 (b) is a side view thereof.

5A and 5B are views for explaining a configuration of a rack and a pinion that constitute the skylight opening / closing mechanism used in the above embodiment, FIG. 5A is a front view, and FIG. 5B is a side view. Show.

FIG. 6 is a diagram for explaining a closing member attached to an outer frame member housed below a ridge wrapping plate.

FIG. 7A is a diagram schematically showing a state in which a sealing member is attached to the closing member. FIG.7 (b) is a figure for demonstrating the other aspect of a closure member.

FIG. 8 is a diagram for explaining a closing member and a sealing member arranged on the rear end side of the skylight in the closing direction.

[Explanation of symbols]

10 greenhouses 11 ceiling 11a beam 11b purlin 11c Purlin 11d rafters 11e building board 12 Ventilation openings 20 skylight 23-san member 30 guide roller 40 Guide rail 50 racks 52a, 52b guide groove 60 pinion 61 teeth 63,64 pinion frame 66,67 Laura 70 rotation axis 80,90 Closing member 81, 82, 91, 92 sealing member

Claims (10)

[Claims] 1. A skylight opening / closing mechanism for opening / closing a ventilation opening formed in a ceiling part of a greenhouse, the guide roller being provided at a lower part of the skylight and supporting the skylight, and the skylight opening / closing direction in the ceiling part. A skylight opening / closing mechanism, which is fixed along with the guide roller and which guides the skylight that is engaged with the guide roller and is moved by a drive device in an opening direction or a closing direction. 2. The skylight opening / closing mechanism according to claim 1, wherein the guide rail is integrally formed with a hanging lumber that constitutes a ceiling of a greenhouse. 3. The drive device is rotatably arranged on a ceiling portion or a skylight, a rack fixed along the opening and closing direction, a rack meshing with the rack, and a rotary shaft connected to a drive source. The skylight opening / closing mechanism according to claim 1, wherein the skylight opening / closing mechanism is configured by a pinion provided. 4. The skylight opening / closing mechanism according to claim 3, wherein the rack is fixed to the rear surface of the skylight, and the pinion is disposed on the ceiling portion. 5. The skylight opening / closing mechanism according to claim 3, wherein the rack is integrally fixed to a back surface of a corrugated member of the skylight arranged along the opening / closing direction. 6. The pinion between a pair of pinion frames, each of which is disposed adjacent to each side surface of the pinion and has a projecting plate portion extending so as to project above the side surface of the pinion. And each roller disposed inside each projecting plate portion of each pinion frame rolls along each guide groove formed along each longitudinal direction on each side surface of the rack. The skylight opening / closing mechanism according to any one of claims 3 to 5, wherein the skylight opening / closing mechanism is engaged with the skylight. 7. The outer frame of the skylight, wherein the ventilation opening is formed adjacent to the purlin of the ceiling, is located below the purse board when closed, and is the front end side in the closing direction. The skylight opening / closing mechanism according to any one of claims 1 to 6, wherein a closing member is installed between the material and the ridge packing plate to substantially close a gap therebetween. 8. The skylight according to claim 7, wherein a sealing member made of an elastic material is attached to at least one of the wing envelope plate or the outer frame member and the closing member. Opening and closing mechanism. 9. A closure for substantially closing a gap between the outer frame member and a peripheral portion of the ventilation opening at the time of closing the outer frame member on the rear end side in the closing direction of the skylight. A skylight opening / closing mechanism according to any one of claims 1 to 8, wherein a member is attached. 10. The skylight opening / closing mechanism according to claim 9, wherein a sealing member made of an elastic material is attached to at least one of the closing member and the peripheral portion of the ventilation opening. .