JPH1156119A - Apparatus for opening and closing greenhouse curtain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a greenhouse curtain opening and closing device capable of adjusting opening and closing end attaching position or the like by freely moving a rack member in a greenhouse curtain opening and closing device constituted by connecting a driving gear engaged with a rack member so as to integrally rotate with a rotating shaft by a motor, providing the rack member so as to enable linear reciprocating by engaging with the driving gear and openably guiding a curtain whose base end part is fixed on a greenhouse structure side. SOLUTION: This greenhouse curtain opening and closing device is obtained by constituting a rotating shaft of a driving gear 5 engaged with a rack member 6 of a squire pipe 4, providing a guide roller bringing the rack member 6 into contact with the opposite side of the driving gear 5 and keeping engaging state of the rack member with the driving gear and providing the guide roller so as to be movable in a state in which engaging of the rack member with the driving gear is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening and closing device for a greenhouse curtain or the like.

[0002]

2. Description of the Related Art Conventionally, a drive gear engaged with a rack member by a motor is connected so as to rotate integrally with a rotary shaft of a round shaft, and the rack member is engaged with the drive gear so as to be able to linearly reciprocate. There is known a greenhouse curtain opening / closing apparatus in which an opening / closing end of a curtain is connected to the rack member and a curtain having a base end fixed to the greenhouse structure side is guided to be able to open / close freely. Further, a shelf line is provided along the opening and closing direction of the curtain, and as a shelf line engaging member that guides the shelf line by engaging the curtain end, a base end that engages with the curtain end member; 2. Description of the Related Art A greenhouse curtain opening / closing device provided with a shelf line engaging member including a shelf line insertion ring portion provided upright is known.

[0003]

It is difficult to open and close the entire greenhouse with only one curtain because it is difficult to open and close the open / close position and increase the open / close distance. Open and close the curtains by dividing the curtains a little at a time. Therefore, a plurality of rack members for opening and closing the curtain are provided at both ends and an intermediate portion of the curtain along the opening and closing direction of the curtain, and these rack members are provided with a drive gear provided at a predetermined interval on a rotating shaft that rotates forward and reverse by a motor. The rack member is reciprocated in the curtain opening / closing direction, and a plurality of curtain opening / closing ends are connected to each rack member, and the load of the curtain of the entire greenhouse is applied. It is necessary to provide a structure for maintaining a strong occlusion state so that the occlusion state is not released due to the load of the occlusal force. On the other hand, a plurality of curtain open / close ends of the entire greenhouse are connected to the rack member, and it is necessary to initialize the curtains of the entire greenhouse so as to open and close at the same time in synchronization. To adjust the mounting position of each curtain. Conventionally, a drive gear meshing with a rack member is connected with a simple fastener, a fixing tool, etc. so that the drive gear rotates integrally with a rotary shaft of a round shaft, and the drive gear is rotated with respect to the rotation shaft by loosening the fastener. It has been freely rotatable, and at the time of initial setting, the individual rack members are freely moved to adjust the mounting position of each curtain. However, fixing the drive gear to the rotating shaft of the round shaft with a fastener or the like has a considerably difficult problem in terms of structure, operability, and durability, and in many cases, particularly after initial setting, it is often loosened. There was a problem in durability, and there was a problem with difficulty in maintenance and inspection. Further, a conventional shelf line engaging member that guides the curtain end by engaging it with a shelf line provided along the opening and closing direction of the curtain includes a base end portion that engages with the curtain end member, and a standing end portion that rises from the base end portion. However, there is a problem that it cannot be freely mounted on the shelf line simply by including the shelf line insertion ring portion provided as described above.

[0004]

SUMMARY OF THE INVENTION In view of the above, the present invention relates to a drive gear which is engaged with a rack member by a motor so as to rotate integrally with a rotation shaft, and engages with the drive gear so as to be capable of linearly reciprocating. In a greenhouse curtain opening and closing device, a member is provided, and an opening and closing end of a curtain is connected to the rack member, and a curtain having a base end fixed to the greenhouse structure is guided to be openable and closable. A guide roller that contacts the opposite side of the drive gear to the rack member and maintains an engagement state between the rack member and the drive gear, and moves the guide roller to a state where the rack member and the drive gear are disengaged from each other. It is an object of the present invention to provide a greenhouse curtain opening and closing device characterized by being provided as possible. In the above-described apparatus of the present invention, since the rotating shaft that rotationally drives the driving gear that drives the rack member in the curtain opening / closing direction is formed by the square pipe, the driving gear and the square pipe are always integrally rotated. The integration between the gears and the square pipe, which is the rotating shaft, is achieved without using any means for rotation. The structure and operation for integration are not particularly required, and the durability is sufficiently secured. Will be done. In addition, the maintenance of the meshing state between the rack member and the drive gear during the curtain opening / closing operation can be performed by a guide roller that abuts the rack member on the side opposite to the drive gear. By providing a guide roller that maintains the state of engagement between the rack member and the drive gear, the guide roller is movably provided to a position where the rack member is in the state of disengagement with the drive gear.
The rack member is disengaged from the drive gear and freely moved, and at the time of initial setting, the individual rack members can be freely moved to adjust the mounting position and the like of each curtain.

Further, according to the present invention, a driving gear engaged with a rack member by a motor is connected so as to rotate integrally with a rotation shaft, and the rack member is engaged with the driving gear so as to be capable of linearly reciprocating. In a greenhouse curtain opening / closing device, which connects the open / close end of a curtain to a rack member and guides the curtain having a base end fixed to the greenhouse structure side so as to be able to open / close freely.
As a shelf line engaging member that engages and guides the curtain end to a shelf line provided along the opening and closing direction of the curtain, a base end portion that engages with the curtain end member, and is provided upright from the base end portion. A shelf line engaging member comprising a shelf line insertion ring portion and a shelf line elastic mounting portion having a shelf line engagement guide piece and a separation preventing piece provided on the shelf line insertion ring portion is provided. A greenhouse curtain opening and closing device is provided. The shelf line provided at the top and bottom of the curtain along the opening and closing direction of the curtain and the shelf line engaging member at the end of the curtain can prevent the curtain from falling off the curtain opening and closing surface due to the descent and soaring by the wind, and the curtain opens and closes smoothly. In other words, according to the shelf line engaging member of the present invention, the shelf line engaging member provided on the curtain end member on the shelf line fixed at both ends to the greenhouse is connected to the shelf line elastic mounting portion. It can be freely attached by the joint guide piece function, and
At the same time, the detachment of the shelf line can be prevented by the detachment preventing piece function provided by the shelf line elastic mounting portion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the illustrated embodiments. In FIG. 6, reference numeral 1 denotes an embodiment of a greenhouse according to the present invention, which is built in an east-west direction. The size of the greenhouse covered by the curtain is, for example, 40 m east-west, 20 m north-south, and 20 m north-south, 10 m east-west curtain 4.
In the case of covering with sheets, the curtains 2 having a width of 20 m from north to south should be arranged at intervals of 10 m from east to west, and each curtain should be opened and closed by 10 m from east to west. Therefore, a square pipe 4 as a rotating shaft rotated forward and backward by the motor 3 is provided in the north-south direction near the center of the greenhouse over a distance of 20 m, and drive gears 5 are provided near at both ends and at least three places in the middle. The rack members 6 that are engaged with the rack members are provided so as to linearly reciprocate 10 m in the east-west direction as indicated by arrows, and are connected to each rack member 6 so as to simultaneously open and close the curtain opening and closing ends of the four curtains 10 m 10 east and west. For example, when the rack member 6 linearly reciprocates 10 m in the east-west direction, the greenhouse curtain opens and closes synchronously. Here, the rack member 6 of the present invention includes a rack portion 6a that meshes with the drive gear 5,
It includes an extension 6b formed of a hollow pipe or the like extending from the rack in the curtain opening and closing direction. The square pipe also includes a hollow triangular shape other than a quadrangle, a hollow polygonal shape, a gear shape, a star shape, and the like.

As shown in FIG. 1, the square pipe 4 as a rotating shaft is rotatably mounted via a bearing member 9 to a square mounting pipe 8 provided between greenhouse aggregates provided above the pipe. . Reference numeral 10 denotes a pair of mounting frame members, and a bottom plate portion 11 thereof.
, A bearing member 9 is integrally mounted. Mounting frame member 10
The upper part 12 is integrally provided on the upper part of the
3 is fixed to the mounting pipe 8. In the case of the embodiment, two sets of drive gears 5 are provided on the square pipe 4 at both sides of the bearing member 9, and two sets of drive gears 5 are provided on the legs of the portal rack member 6 from above. The set of rack portions 6a are engaged. The drive gear 5 is provided on the upper surface 6 c of the rack member 6.
Guide roller 1 for maintaining the state of engagement between rack and rack portion 6a
4 so that the pair of mounting frame members 1 can rotate freely.
It is provided as a bearing between zero.

A long hole 16 is provided in the mounting frame member 10 in which the both ends of the support shaft 15 of the guide roller 14 are opposed to each other. The guide roller 14 occupies the position where the rack member 6 engages with the drive gear 5 when the support shaft 15 is located below the elongated hole 16. When the support shaft 15 is located above the long hole 16, the guide roller 14
It is provided so that it can be freely moved away from the position where it engages. In the illustrated embodiment, the fixing screw 1
7 is provided with a washer 18 with a stopper, and the fixing screw 17 is tightened so that the stopper portion 19 comes into contact with the upper end of the long hole 16 so that the fixing screw 17 and the support shaft 15
6, the guide roller 14 maintains the rack member 6 in a state of engaging with the drive gear 5, and conversely,
When the stopper 7 is released from the upper end of the long hole 16 by loosening the shaft 7 and the support shaft 15 is located above the long hole 16,
The guide roller 14 is provided so that the rack member 6 can be freely moved away from the position where it engages with the drive gear 5.

In addition, as means for firmly fixing the support shaft 15 of the guide roller 14 to the upper position so as to be movable to the upper position, the head of the fixing screw 17 is fitted or abutted when tightened below the long hole. In addition to means for providing a concave groove or a protrusion for preventing upward movement and fixing at a lower position, means for fixing the support shaft 15 to the bottom side of the L-shaped long hole 16 with a fixing screw 17, and the like, conventionally known. Various means can be used to tighten the fixing screw 17 to maintain the state of engagement between the rack member 6 and the driving gear 5 firmly, and to loosen it to easily move upward by the elongated hole to release the state of engagement. A configuration that can be obtained. In FIG. 1, reference numeral 20 denotes a through-hole provided in the mounting frame member 10 so that the drive shaft 4 is rotatably penetrated. In FIG. 2, reference numeral 21 denotes the guide roller 1.
4 are spacer members provided between the mounting frame members 10 on both sides, both ends of which are fixed by screw members 22.

In FIG. 6, as indicated by broken lines, shelf lines 7 extend between greenhouse aggregates along the opening and closing directions (east-west directions) above and below each curtain 2. Therefore, each curtain 2
Are located between the upper and lower shelf lines 7 and are protected from drooping and wind blowing. Further, each curtain 2 is located above the rack member 6, and fixed curtain end members 23 and movable curtain end members 24 are provided at both ends in the east-west direction.
Is provided. The fixed curtain end member 23 is integrally fixed to the greenhouse aggregate by a fixing wire 29 and the like, and the movable curtain end member 24 is fixed to the rack member 6, and each curtain is moved by reciprocating linear movement along the opening and closing direction of the rack member 6. 2 will open and close. The rack member 6 is shown in FIG.
In the embodiment of the present invention, the moving curtain end members 24 of each curtain 2 are provided at the same moving position of each rack member 6 at the three positions. It will be fixed. As shown in FIG. 3, the fixed curtain end member 23 and the movable curtain end member 24 wrap around the edge of the curtain 2 and fit and fix the C-shaped tube 26 from outside, It has a fitting frame portion 28 having a convex fitting groove 27 for the shelf line engaging member 30 on the upper and lower sides. In FIG. 1, the fixed curtain end member 2
Reference numeral 3 is fixed to the vicinity of the mounting pipe 8 via a fixing member or the like.

In the case of the embodiment, the shelf line engaging member 30 is provided at the base end portion 3 which engages with the fitting groove 27 of the curtain end members 23, 24.
1, a shelf line insertion ring portion 32 provided upright from the base end portion 31 via a concave portion 36, and a shelf line insertion ring portion 32
And a shelf line elastic mounting portion 35 having both an engagement guide piece 33 of the shelf line 7 and a detachment prevention piece 34. The shelf line engaging member 30 having the above-described configuration is used for the fixed curtain end member 23.
The base end 31 is fitted from the end to the upper and lower fitting grooves 27 of the fitting frame 28 of the movable curtain end member 24 by the number of the shelf lines 7, and slid to the extending position of each shelf line 7. By moving and moving the engagement guide piece 33 of the shelf line elastic mounting portion 35 elastically to insert the shelf line 7 into the shelf line insertion ring portion 32, the separation preventing piece 34 prevents The curtain 2 has fixed curtain end members 23 and movable curtain end members 24 at both ends thereof.
It is stored and opened and closed between the shelf line engaging member 30 and the shelf line 7 mounted on the curtain 2, and particularly when the curtain 2 is opened, the curtain 2 is blown by the wind and the fixed curtain end member 23 and the movable curtain end member 24 Movement to the outside is prevented, and smooth opening and closing movement of the curtain 2 is maintained. Also,
When repairing the curtain 2 or the like, the shelf line elastic mounting portion 35 is used.
Of the engagement guide piece 33 and the disengagement prevention piece 34 can be elastically deformed to remove the shelf line 7 from the inside of the shelf line insertion ring portion 32 to the outside.

[0012]

According to the greenhouse curtain opening / closing device of the present invention having the above-described structure, the driving gears which are engaged with the rack member by the motor are connected so as to rotate integrally with the rotation shaft, and are engaged with the driving gears. A greenhouse curtain opening / closing apparatus, wherein the rack member is provided so as to be able to linearly reciprocate, and an opening / closing end of a curtain is connected to the rack member, and a curtain having a base end fixed to the greenhouse structure side is guided in an openable / closable manner. The rotation shaft is formed of a square pipe, and a guide roller is provided for abutting the rack member on the opposite side of the drive gear to maintain the bite state between the rack member and the drive gear, and the guide roller is driven with the rack member. By having a structure provided so as to be movable to a state where the gears are disengaged from the gears, the rotating shaft that rotationally drives the driving gear that drives the rack member in the curtain opening and closing direction is a square pipe. Therefore, the drive gear and the square pipe are always rotated integrally, and the drive gear and the square pipe, which is the rotating shaft, are integrated without using any means for rotation. Structure for the
There is an effect that the operation can be made unnecessary particularly, and there is an effect that the durability is sufficiently secured. In addition, the maintenance of the engagement state between the rack member and the drive gear during the curtain opening / closing operation can be performed by a guide roller that abuts on the rack member on the opposite side of the drive gear, and the engagement state between the rack member and the drive gear. The guide roller to be maintained is provided so as to be movable to a position where the rack member is brought into a state of disengagement with the drive gear, so that the rack member is disengaged from the drive gear and freely moved to initialize the curtain opening / closing position. At times, there is an effect that the individual rack members can be freely moved to easily adjust the mounting position and the like of each curtain. Further, the present invention provides a drive member which is engaged with a rack member by a motor so as to rotate integrally with a rotation shaft, and is provided with the rack member so as to engage with the drive gear so as to be able to linearly reciprocate. In a greenhouse curtain opening / closing device that connects the opening and closing ends of a curtain and freely opens and closes a curtain whose base end is fixed to the greenhouse structure side, the curtain end is connected to a shelf line provided along the opening and closing direction of the curtain. As a shelf line engaging member that engages and guides, a base end portion engaging with the curtain end member, a shelf line insertion ring portion provided upright from the base end portion, and a shelf line insertion ring portion are provided. By providing a shelf line engaging member comprising a shelf line elastic mounting portion having both a shelf line engaging guide piece and a separation preventing piece, shelves provided above and below the curtain along the opening and closing direction of the curtain The line causes the curtain to hang and The curtain can be opened and closed smoothly, and the curtain line can be opened and closed smoothly. It can be mounted freely from the side by the engaging guide piece function of the mounting part, and once it is mounted, the detachment prevention piece function that the shelf line elastic mounting part has at the same time prevents the detachment, and the curtain from the curtain end member to the outside Is prevented from deviating, and the opening and closing can be surely performed.

[Brief description of the drawings]

FIG. 1 is a schematic enlarged perspective view of a main part of an embodiment of the apparatus of the present invention.

FIG. 2 is an exploded perspective view of the main part.

FIG. 3 is a schematic exploded perspective view of other main parts.

FIG. 4 is a front view of the main part.

5 is an AA cross-sectional side view of a main part of FIG. 4;

FIG. 6 is an overall schematic perspective view of one embodiment of the device of the present invention.

[Explanation of symbols]

 1 ··· Greenhouse 2 ··· Curtain 3 ··· Motor 4 ··· Square pipe 5 ··· Drive gear 6 ··· Rack member 6a ··· Rack part 6b ··· Extension Part 6c top surface part 7 shelf line 8 mounting pipe 9 bearing member 10 mounting frame member 11 bottom plate part 12 top plate part 13 ··· Fixed hanging device 14 ··· Guide roller 15 ··· Support shaft 15a ·· Screw hole 16 ··· Elongated hole 17 ··········································・ Through hole 21 ・ ・ ・ Spacer member 22 ・ ・ ・ Screw member 23 ・ ・ ・ Fixed curtain end member 24 ・ ・ ・ Moveable curtain end member 25 ・ ・ ・ Circular tube part 26 ・ ・ ・ C-shaped tube 27 ・ ・ ・ Fit Fitting groove 28 Fitting frame 29 Fixing wire 30 Shelf line engaging member 31 Group End 32: shelf wire insertion ring 33: engagement guide piece 34: detachment prevention piece 35: shelf wire elastic attachment 36: crack

Claims (2)

[Claims] A drive gear engaged with a rack member by a motor is connected so as to rotate integrally with a rotation shaft, and the rack member is engaged with the drive gear so as to be capable of linearly reciprocating, and a curtain is provided on the rack member. A greenhouse curtain opening / closing device that connects the opening and closing ends of the greenhouse and that opens and closes a curtain whose base end is fixed to the greenhouse structure side, wherein the rotating shaft is formed of a square pipe, and a drive gear is mounted on the rack member. And a guide roller that abuts on the opposite side to maintain the state of engagement between the rack member and the drive gear is provided, and the guide roller is movably provided to release the state of engagement between the rack member and the drive gear. Greenhouse curtain opening and closing device. 2. A driving gear meshing with a rack member by a motor is connected so as to rotate integrally with a rotation shaft, and the rack member is engaged with the driving gear so as to be linearly reciprocated, and a curtain is provided on the rack member. In a greenhouse curtain opening / closing device that connects the open / close ends of the greenhouse to open and close a curtain whose base end is fixed to the greenhouse structure side, the curtain end is connected to a shelf line provided along the opening / closing direction of the curtain. A shelf end engaging with the curtain end member, a shelf line insertion ring portion provided upright from the base end, and a shelf provided on the shelf line insertion ring portion as the shelf line engaging member to be guided together. A greenhouse curtain opening / closing device, comprising a shelf line engaging member comprising a shelf line elastic mounting portion having both a wire engagement guide piece and a separation preventing piece.