JP2001148948A - Opening and closing mechanism for skylight of greenhouse and greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open and close a right skylight 2 and a left skylight 1 attached to roofs 7 at both sides of a ridgepole 3 of a greenhouse 8 useful for cultivating a plant of warm district and for flowering and seed setting at a time except an ordinary time by a single operation and by a single driving force for ventilation. SOLUTION: A driving shaft 11 is installed parallel with the ridgepole 3 below the ridgepole 3 and a bracket having right and left driving pin stoppers 13, 14, 15 and 16 is attached to the driving shaft. Rod pin stoppers 25, 26, 28 and 29 of right and left arm rods 24 and 27 are connected to the right and left driving pin stoppers 13, 14, 15 and 16 by right and left driving links 18, 19, 21 and 22, the right and left arm rods 27 and 24 are connected to skylight pin stoppers 34 and 33 of the right and left skylights 2 and 1 and the driving shaft 11 is rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a greenhouse used for cultivating a plant in a warm region or for flowering and fruiting at a time other than a normal time, and in such a greenhouse, the environment such as the temperature and humidity of the room is kept constant. The present invention relates to a mechanism for opening and closing a skylight for the purpose of ventilation, and more particularly to a mechanism for opening and closing a skylight installed on roofs on both right and left sides of a purlin by a single operation.

[0002]

2. Description of the Related Art A conventional mechanism for opening and closing a skylight of a greenhouse includes:
JUKI 57-7241 and registered utility model No. 3032870
As in No. 1, there is a structure in which a slide pipe is connected to a free end of a skylight with a support, and the skylight is opened and closed by moving the slide pipe in a longitudinal direction. Also,
By connecting the free end of the skylight and the drive shaft held by the bearing attached to the beam of the joint with a link, and rotating the drive shaft forward and backward, as in Japanese Utility Model Publication No. 4-038696 and Japanese Utility Model Publication No. 4-038697. There was a structure that opened and closed the skylight. However, in these methods, in order to open and close both of the skylights attached to the roofs on the left and right sides of the purlin, a plurality of opening and closing devices are required, resulting in an expensive greenhouse.
In addition, since the skylights attached to the roofs on the left and right sides of the purlin cannot be opened and closed by a single operation, there is a disadvantage that the same operation must be repeated.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and has as its object to provide a drive shaft near the lower central portion of a purlin, in parallel with the purlin. And a bracket having four pinnings is attached thereto, and two of the four pinnings are left driving pinnings, which are connected to the left driving link, and the left driving link and the left arm rod are further connected. And further connected to the left arm rod and the skylight pinning of the left skylight, and the remaining two of the four pinnings are used as the right driving pinning,
By connecting this with the right drive link, further connecting this right drive link with the right arm rod, and further connecting this right arm rod with the skylight pin stop of the right skylight, by rotating the drive shaft, The purpose is to open and close the skylights attached to the roofs on the left and right sides of the purlin by a single operation.

[0004]

SUMMARY OF THE INVENTION In short, the present invention provides a drive shaft in the vicinity of a lower central portion of a purlin, parallel to the purlin, to which a bracket having four pin stops is attached. Are connected to the left drive pin and the rod pin of the left arm rod via two left drive links, and the two left drive links intersect with each other. The left arm rod is connected with the skylight pinning of the left skylight, and the remaining two of the four pinnings are used as the right driving pinning. The right driving pinning and the rod pinning of the right arm rod are two. Through the right drive link, the two right drive links cross each other,
Connect the right arm rod with the skylight pinning of the left skylight,
The skylights attached to the roofs on the left and right sides of the purlin are opened and closed by a single operation and a single drive.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in the drawings. The greenhouse 8 according to the present embodiment includes a plurality of joint palms 5, a roof 7, a pillar, and the like combined in a mountain shape.
A greenhouse 8 having a structure in which the purlin 3 is mounted on the top of the gassho 5, a spar is attached to the contact point between the gassho 5 and the pillar, and a beam is provided between the gassho 5 and the pillar to connect the gassho 5 and the pillar. A land beam 6 is attached to prevent deformation of the vehicle. Support points 31 and 32 are provided on both left and right sides of the purlin 3. The left skylight 1 is connected to a fulcrum 31 by a pair at the vicinity of one end thereof, and has a skylight pinning 33 at an opposite position. On the other hand, right skylight 2
Is connected to the fulcrum 32 near one end by a pair.
A skylight pin stop 34 is provided at the opposite position.

A drive shaft 11 is installed below the purlin 3 in parallel with the purlin 3 and attached to the land beam 6 via a bearing (not shown). A bracket 12 having four pin stops is attached to the drive shaft 11, and two of the four pin stops on one bracket 12 are left drive pin stops 13 and 15.
The other two are right drive pin stops 14,16. The left arm rod 24 is connected at one end to the skylight pin stop 33 of the left skylight 1 by a pair, and has two rod pin stops 25 and 26 at the other end. The two left drive links 18 and 19 cross each other while one is
5, 26 and the other are connected to the left drive pin stoppers 13 and 15 by turning pairs. The right arm rod 27 is connected at one end to the skylight pin stop 34 of the right skylight 2 by a pair, and is connected to the other end by two rod pin stops 28 and 29.
have. The two right drive links 21 and 22 cross each other and are connected to one another by rod pinnings 28 and 29 and the other to the right driving pinnings 14 and 16 by turning pairs.

A gear (not shown) is mounted on the drive shaft 11, and the gear is driven by a motor (not shown) through a speed reducer (not shown) and a gear attached to the speed reducer to rotate the gear. It is configured to When one set of the left window 1 and the right window 2 each having a small size is installed, the bracket 12, the left arm rod 24, the right arm rod 27, and the two left drive links 1 are mounted on one drive shaft 11.
8, 19, and two right drive links 21 and 22 may be attached to each of the two sets. And, as the left skylight 1 and the right skylight 2 become larger, the number of the brackets 12, the left arm rod 24, the right arm rod 27, the two left drive links 18, 19, and the two right drive links 21, 22 is increased. increase.
When a plurality of left skylights 1 and right skylights 2 are installed, the bracket 12, the left arm rod 24, the right arm rod 27, the two left drive links 18, 19, and the two right drive links are provided on one drive shaft 11. What is necessary is just to attach 21 and 22 as many as required respectively.

The present invention is configured as described above,
Hereinafter, the operation will be described. Driven by a motor (not shown), the drive shaft 11 rotates in both left and right directions. When the drive shaft 11 is rotated clockwise in the state of FIG. 1 in which both the left skylight 1 and the right skylight 2 are closed, the left drive pinning 1
3, 15 and the right drive pin stops 14, 16 are both the drive shaft 11
Move clockwise around. Then left drive link 1
8 and 19 move to the positions 18a and 19a, and the right drive links 21 and 22 move to the positions 21a and 22a. With the movement of the left drive links 18 and 19, the left arm rod 24 moves to the position 24a, and with the movement of the right drive links 21 and 22, the right arm rod 27 moves to the position 27a. With the movement of the left arm rod 24, the left skylight 1 becomes the fulcrum 3
The window 1 rotates, moves to the position 1a, and the skylight 1 opens. In addition, the right skylight 2 becomes the fulcrum 3 with the movement of the right arm rod 27.
2, the window 2 is moved to the position 2a and the skylight 2 is opened.

Usually, the ridge gradient A of the joint 5 is 25 to 28 degrees. In the case where the skylight can be opened until it is almost horizontal, the rotation angle B of the left skylight and the rotation angle C of the right skylight are often 25 to 35 degrees. On the other hand, in the case where the angle is parallel to the ridge gradient of the opposite side palm, the rotation angle B of the left skylight and the rotation angle C of the right skylight are often 50 to 60 degrees. In the above embodiment, the left skylight pinning 33 and the right skylight pinning 34 are connected to the fulcrum 31, 3
2, the rotation angle B of the left skylight and the rotation angle C of the right skylight can be increased by setting the positions of the left skylight pinning 33 and the right skylight pinning 34 as fulcrums 31, 32.
It is possible by approaching

In the above embodiment, a greenhouse with a mountain-shaped roof is described, in which fulcrums are provided on the left and right sides of the purlin. Support from beams and joints. In the case of a greenhouse having a round roof, there is no member generally called a purlin, but the top of the roof may be read and interpreted as a purlin. In the above embodiment, one bracket having four pinnings was used. However, four brackets having one pinning or two brackets having two pinnings may be used. Good. In the above embodiment, the drive shaft 11 is driven by a motor. However, if the number of skylights is small, it can be manually opened and closed.

[0011]

As described above, according to the present invention, a drive shaft is provided in the vicinity of the lower central part of the purlin in parallel with the purlin, and a bracket having four pin stoppers is attached thereto. Two of them are left drive pinning, the other two are right drive pinning, the rod pinning of the left arm rod and the left driving pinning are connected by two left driving links, and the left arm rod is connected to the left skylight. Connect the right arm rod rod pin and the right drive pin with two right drive links, connect the right arm rod with the right skylight's skylight pin, and connect the drive shaft in both left and right directions. By rotating, the skylights attached to the left and right sides of the purlin were able to be opened and closed by a single operation and a single driving force. Also,
By controlling a single switchgear by a single controller, an inexpensive greenhouse could be provided. Further, since the drive shaft is formed of a square pipe having a high torsional rigidity, an opening and closing mechanism suitable for opening and closing a large skylight or many skylights can be provided. In addition, there is no sliding between the drive shaft of the square pipe and the bracket, and even if multiple skylights are installed and the strong wind blows, a skylight opening and closing mechanism that does not differ in the opening and closing angle of each skylight. Could be provided.

[Brief description of the drawings]

FIG. 1 is a side view of a mechanism for opening and closing a skylight of a greenhouse according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Left skylight 2 ... Right skylight 3 ... Ridge 5 ... Gassho 7 ... Roof 8 ... Greenhouse 11 ... Drive shaft 12 ... Bracket 13 ... Left drive pin Stop 14 ··· Right drive pin stop 15 ··· Left drive pin stop 16 ··· Right drive pin stop 18 ··· Left drive link 19 ··· Left drive link 21 ··· Right drive link 22 ··· Right drive link 24 ・ ・ ・ Left arm rod 25 ・ ・ ・ Rod pin stop 26 ・ ・ ・ Rod pin stop 27 ・ ・ ・ Right arm rod 28 ・ ・ ・ Rod pin stop 29 ・ ・ ・ Rod pin stop 31 ・ ・ ・ Support point 32 ・ ・ ・Support point 33 ・ ・ ・ Skylight pinning 34 ・ ・ ・ Skylight pinning

Claims (2)

[Claims] 1. A skylight mounted on the roof of a greenhouse,
A fulcrum is provided on each of the left and right sides of the purlin or on the roof surfaces on the left and right sides of the purlin, and a skylight that is connected to the fulcrum near one end and has a skylight pinned at a position away from the fulcrum is attached to the left and right sides of the purlin. A greenhouse skylight opening / closing mechanism having one skylight as a left skylight and the other skylight as a right skylight, wherein a drive shaft is supported rotatably in parallel with the purlin below the purlin, Mounting a bracket having four pinnings on the shaft, two of the four pinnings being left driving pinning and the other two being right driving pinning; A left arm rod connected near one end and having two rod pin stops near the other end, and further connected to the rod pin stop of the left arm rod near one end; Connect with the left drive pin stop near Provided while intersecting with each other pieces of the left drive link connected near the top panel window pinning and one end portion of the right skylight,
A right arm rod having two rod pin stops is provided near the other end, and further connected to the rod pin stop of the right arm rod near one end, and the right drive pin stop is connected near the other end. A greenhouse skylight opening / closing mechanism, wherein two right driving links to be connected are provided so as to cross each other. 2. A greenhouse having a mountain-shaped roof or a round-shaped roof, a fulcrum is provided on each of the left and right sides of the purlin, or on the left and right sides of the purlin, and connected to the fulcrum near one end thereof, and A skylight having a skylight pin at a position distant from the fulcrum is provided on the left and right roofs of the purlin, and in a greenhouse in which one skylight is a left skylight and the other skylight is a right skylight, a drive shaft is provided below the purlin. A bracket having four pins is attached to the drive shaft so as to be rotatably supported in parallel with the purlin, two of the four pins are left-pinned, and the other two are right-pinned Drive pinning, coupled with the skylight pinning of the left skylight near one end,
A left arm rod having two rod pin stoppers is provided near the other end, and further connected to the rod pin stopper of the left arm rod near one end, and the left drive pin stopper is connected near the other end. Two left drive links to be connected are provided crossing each other, and connected to the skylight pinning of the right skylight near one end;
A right arm rod having two rod pin stops is provided near the other end, and further connected to the rod pin stop of the right arm rod near one end, and the right drive pin stop is connected near the other end. A greenhouse having a greenhouse skylight opening / closing mechanism, wherein two right driving links to be connected are provided to cross each other.