JPH0584024A - Agricultural house having sheet roof, winding and unwinding apparatus for sheet and guide for winding and unwinding of sheet - Google Patents

Abstract

PURPOSE:To facilitate the opening and closure of a roof by rotatably supporting a winding shaft of a roof sheet in a specific state with a guide. CONSTITUTION:An end of a sheet 5 is fixed to a side of a roof frame 2 to form a roof and the other end of the sheet is wound on a winding shaft 8. The winding shaft is rotatably supported by guides 9, 9a on the wound sheet interposing the sheet. The guide is pulled toward the other side of the roof frame with a pulling member having a wire 14, a bearing 15 and a weight 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a house having a roof formed of sheets, a sheet winding / rewinding device for winding / rewinding a sheet, and a sheet winding / rewinding guide for guiding a winding shaft around which the sheet is wound.

[0002]

2. Description of the Related Art As a conventional sheet winding / rewinding device, there is a rolling type in which a winding shaft around which a sheet is wound rolls along a frame of a device to be mounted and the sheet is stretched on the frame.
There is a fixed position rotation type in which the winding shaft rotates at a fixed position of the frame and the sheet extends along the frame. The rolling type is one in which one end of the sheet is fixed to the frame and the other end is wrapped around the take-up shaft.By rotating the take-up shaft, the take-up shaft rolls along the frame and the sheet moves to the take-up shaft. It is extended or rewound in the direction of rolling. The fixed position rotation type allows the take-up shaft to be rotatably held in a fixed position and to increase or decrease the bias of the other end of the unrolled sheet to extend or rewind the sheet. The sheet is stretched or removed from the frame.

[0003]

The fixed position rotation type is
Since the sheet slides along the frame, friction may occur between the sheet and the frame, which may damage the sheet. On the other hand, in the rolling type, friction does not occur between the sheet and the frame, but the winding shaft must be rotationally driven while moving along the frame, and the moving direction is limited. There is a problem that only a narrow winding width can be used.

The present invention has improved the rolling type in which friction does not occur between the sheet and the frame, and the sheet winding width can be widened, and the rolling direction of the winding shaft can be either vertical or horizontal. An object of the present invention is to provide a take-up / rewinding device, a house in which a roof can be easily opened and closed, and a guide used in a sheet take-up / rewinding device.

[0005]

A house having a seat roof of the present invention is a house main body having a roof frame part, a sheet having one end fixed to one side of the roof frame part to form a roof, and A winding shaft that winds the other end, a guide that rotatably holds the winding shaft via a sheet on the winding shaft, and a biasing member that biases the guide to the other side of the roof frame portion. And a drive device that rotationally drives the winding shaft.

The sheet winding and rewinding device of the present invention is
It is the main component of a house with a seat roof,
A sheet whose one end is fixed to one side of the frame portion and which is stretched to the frame portion, a winding shaft which winds the other end of the sheet, and a winding shaft which rotatably holds the sheet on the winding shaft. And a biasing member that biases the guide to the other side of the frame portion,
And a drive device that drives the winding shaft to rotate and winds and rewinds the sheet around the winding shaft.

Further, the sheet winding / rewinding guide of the present invention can be used in a sheet winding / rewinding device, and one end of a sheet is inserted into a winding shaft through which a winding shaft is wound and an entrance / exit of a sheet portion not wound. A C-shaped skeleton portion having an opening and a roller provided at each of the opening ends forming both ends of the opening and rotatably holding the winding shaft.

The house body having a roof frame portion constituting a house having a seat roof according to the present invention refers to a sheet house, a tent and the like used for greenhouses, simple warehouses and the like which are usually known as vinyl houses. The roof frame part that constitutes the house body corresponds to a frame that forms the roof of the house body, and is a generally immovable part formed of steel frame, pipe, wood, or the like.

The sheet is a sheet-shaped member such as a vinyl film, a canvas or a non-woven fabric and is a member stretched around the roof frame portion. This sheet is usually rectangular and one side facing the other is fixed to the roof frame part, and the other side is wound around the winding shaft. The winding shaft has a role of winding one end of the sheet and applying a tension to the stretched sheet. This winding shaft needs to have a rigidity that can withstand the twisting force due to the rotational drive and does not bend. Further, since the sheet is wound up, it is preferable that the cross section is circular and the outer diameter is constant.

The guide that rotatably holds the take-up shaft holds the take-up shaft rotatably through the sheet that is taken up by the take-up shaft, and one end of the sheet is taken up. It is necessary to have a C-shaped skeleton portion having an opening portion that is inserted through the take-up shaft and serves as an entrance and exit of a sheet portion that is not wound. Rollers and balls are rotatably arranged at the open ends that form the ends of the opening to prevent damage to the seat due to relative sliding that occurs between the skeleton and the wound seat due to the rotation of the winding shaft. However, it is preferable that relative sliding does not occur with the sheet. A plurality of guides can be arranged at intervals in the axial direction of the winding shaft. It is also preferable to fix each guide to a rod or the like in order to prevent the relative positions of the plurality of guides from moving due to the drive of the winding shaft.

The urging member urges the guide in a direction away from the position where one end of the sheet is fixed. As the biasing member, a weight utilizing gravity, a torque motor generating a constant torque, a coil spring, or the like can be used. The drive device drives the take-up shaft to rotate, and a rotary drive device using a handle, a motor or the like fixed to the take-up shaft that is manually operated by an operator can be used. It should be noted that the rotational drive torque at the time of winding the drive device needs to be stronger than the urging force of the urging member. As a result, the sheet is wound around the winding shaft by driving the winding shaft, and the winding shaft is driven in the direction of the frame portion where the sheet is fixed. Further, it is preferable that the drive device suppresses the rotation so that the winding shaft does not rotate when the drive device is not rotationally driven.

The sheet winding and rewinding device of the present invention is
It has the same configuration as described for the house with a seat roof of the present invention. However, the sheet winding and rewinding device of the present invention can also be used in other devices other than a house having a sheet roof. The guide of the present invention is used only in the sheet winding and rewinding device of the present invention.

[0013]

In the house having the sheet roof according to the present invention, one end of the sheet is fixed to one opposite side of the roof frame portion forming the roof, and the other end of the sheet is wound around the winding shaft. A drive device is connected to the winding shaft. On the other hand, the winding shaft is rotatably held by a guide from above the wound sheet via the sheet. The guide is biased to the other side of the roof frame portion by the biasing member. The sheet in the portion not wound up by the biasing force of the biasing member is in a state of being pulled between the portion of the roof frame portion on one side and the winding shaft.

In this state, when the driving device drives the sheet in the winding direction, the winding shaft rotates while being held by the guide. The sheet is wound by this rotation. On the other hand, since one end of the sheet is fixed, the sheet is not pulled by hand, and the winding shaft itself is pulled toward the one end side of the roof frame portion while rotating. Since the urging force of the urging member is weaker than the rotational driving force, the guide and the winding shaft are continuously urged to the other end side of the roof frame portion with a constant urging force without stopping the movement of the winding shaft. For this reason, the part of the sheet that has not yet been wound is always pulled between the part of the roof frame portion on one side and the winding shaft.

On the contrary, when the driving device drives the sheet in the rewinding direction, the sheet is rewound and the tension hanging on the sheet is reduced. Therefore, the biasing force of the biasing member becomes strong, and the winding shaft moves in the biasing direction by the biasing force of the biasing member. Since the sheet is pulled by the movement of the winding shaft, the portion of the sheet stretched over the roof frame is always in the pulled state. In this way, the sheet is always in a pulled state when it is wound and when it is unwound, and does not loosen. Further, the sheets are in contact with the roof frame portion but are not in a relationship of sliding with each other. Therefore, there is no damage due to sliding between the seat and the roof frame.

[0016]

【Example】

[First Embodiment] First of a house having a seat roof of the present invention
An example is shown in FIGS. This house is a greenhouse, and a house main body 1 is formed of a mountain-shaped roof frame portion 2, side wall frame portions 3, beam members 4, etc., each of which is formed of steel or pipe.

The sheet 5 forming the roof has two widths of about 4
It is made of vinyl chloride film having a length of 25 m and a length of 25 m.
In these sheets, one of the opposite long sides is fixed to a pipe 7 fixed by a metal fitting 6 on an upper portion of a side wall portion corresponding to the lower side of the roof frame 2, and the sheet portion on the other side of the long side is a winding shaft. It has been wound up to 8. The winding shaft 8 is composed of a pipe slightly longer than the long side of the sheet 5, and a gear (not shown) is coaxially coupled to one end of the pipe, and an endless chain is mounted on the gear and the chain is used to The gear is configured to be rotationally driven by the motor M. The drive device of the present invention is composed of a gear, a chain and a motor in this embodiment.

A guide 9 for rotatably holding the winding shaft 8.
As shown in FIG. 2 and FIG. 3, four sets of four side plates 9a made of a substantially C-shaped steel plate having a pair of square frame strips facing each other at a predetermined interval and lacking one corner are maintained. It consists of a bolt and nut 10, three shaft rods 9b laid between both side plates 9a, and rollers 10a, 10b, and 10c rotatably held by these shaft rods 9b.

The side plate 9a and the bolts and nuts correspond to the skeleton portion of the guide of the present invention, and the missing portion forms the opening of this skeleton portion. The side plate 9a is composed of two parts, a member having the shape of the numeral 7 and a member having the shape of a letter. When the lower right bolt and nut 10 in FIG. 3 are removed, the side plate 9a is as shown by the broken line in FIG. The opening is designed to open.
The guides 9 are arranged at intervals of about 5 m in the axial direction of the winding shaft 10.
Individually arranged.

As shown in FIG. 2, each guide 9 has an opening of a side plate 9a at one end of a wire 14 guided by a bearing portion 15 held by a spring 16 at the top of the roof frame portion 2 at the lower left in FIG. It is fixed to face. Also, wire 1
A weight 13 is fixed to the other end of 4. Wire 14,
The bearing portion 15 and the weight 13 form the urging member of the present invention.

As shown in FIG. 1, a small roof 17 is provided on the top of the roof frame 2 in a direction in which the top extends, and the winding shaft 8 is set under the small roof 17. Is becoming Further, another sheet 5a is attached to the side wall frame portion 3 of the house body 1. The sheet 5a is mounted on a winding shaft 8a and is urged downward by a weight 13a.

The house having the seat roof of the first embodiment has the above-mentioned structure. The seat 5 of this house has one end of the seat 5 fixed to a pipe 7 on one side of the roof frame 2 facing each other, and the other end of the seat 5 is wound around a winding shaft 8. The winding shaft 8 is rotatably held by the guide 9 from above the wound sheet 5 via the sheet 5. The guide 9 is urged toward the top of the roof frame 2 by the weight 13. The seat 5, which is not wound by the biasing force of the weight 13, is pulled between the pipe 7 and the winding shaft 8 of the roof frame portion 2 on one side. Therefore, the portion of the sheet 5 stretched over the roof frame 2 is in a straight stretched state without sagging. Note that FIG.
Shows the state in which the entire roof frame portion 2 is covered with the sheet 5, that is, the state in which the sheet 5 is most rewound.

In this state, when the winding shaft 8 is driven by the motor M to drive the sheet 5 in the winding direction, the winding shaft 8 rotates while being held by the guide 9. The sheet 5 is wound by this rotation. On the other hand, since one end of the sheet 5 is fixed, the sheet 5 does not loosen, that is, the sheet 5 is wound in a straight state. The winding shaft 8 itself is pulled toward the pipe 7 side on one end side of the roof frame portion 2 while rotating. Since the biasing force of the weight 13 is weaker than the rotational driving force, the guide 9 and the winding shaft 8 are fixedly biased to the roof frame portion 2 without stopping the movement of the winding shaft 8.
Continue to urge to the top side of. For this reason, the portion of the sheet 5 that has not been wound up is always pulled between the pipe 7 and the winding shaft 8 of the roof frame portion 2 on one side.

On the contrary, when the winding shaft 8 is driven in the direction for rewinding the sheet 5, the sheet 5 is rewound, and the tension hanging on the sheet is reduced. Therefore, the biasing force of the weight 13 becomes strong, and the winding shaft 8 moves toward the top of the roof frame portion 2 by the biasing force of the weight 13. Since the sheet 5 is pulled by the movement of the winding shaft 8, the portion of the sheet 5 stretched on the roof frame 2 is always in a pulled state. In this way, the sheet 5 is always in a pulled state both when it is wound up and when it is rewound, and does not come loose. Also,
The seats 5 come into contact with the roof frame portion 2 due to the rolling of the winding shaft 8, but they are not in a relationship of sliding with each other. Therefore, there is no damage due to sliding between the seat 5 and the roof frame 2.

As described above, in the house having the seat roof of this embodiment, the seat 5 can be freely wound and unwound by driving the motor M. In addition, the sheet 5 is always in a pulled state even when it is wound and unwound, and is not loosened.
Further, since the sheet 5 and the roof frame portion 2 do not slide on each other, the sheet 5 will not be damaged by the roof frame portion 2 by winding and rewinding.

[Second Embodiment] A second embodiment of a house having a seat roof according to the present invention is shown in FIGS. 4 to 6. This house uses a guide 19 instead of the guide 9 of the house of the first embodiment, and the roof frame part is slightly changed according to this guide 19, and most of the house is the same as the house of the first embodiment. Is. 4 to 6, the same parts as those in the first embodiment are designated by the same reference numerals as those in FIGS. 1 to 3.

In this house, as shown in FIG. 6, a guide 19 having auxiliary rollers 30a and 30b is used. These auxiliary rollers 30a and 30b reduce the resistance when the guide 19 moves relative to the roof frame portion 21 and reduce the frictional resistance between the stretched sheet 5 and the pressing belt 20. The guide 19 has, as its side plate 19a, convex portions 22 protruding vertically. The convex portion 22 serves as a bearing for the auxiliary rollers 30a and 30b, and also serves as a guided portion that comes into contact with the roof frame portion 21 and the pressing belt 20. The auxiliary rollers 30a and 30b rotate on the roof frame portion 21 and the pressing belt 20. The roof frame portion 21 and the pressing belt 20 are provided on the guided portion 2 of the side plate 19.
Since both sides are regulated by 2, the guide 19 moves along the roof frame portion 21 and the pressing belt 20, and the movement of the guide 19 in the direction perpendicular to the paper surface in FIG. 6 is regulated.

The roof frame portion 21 has an auxiliary roller 30.
In order to facilitate the relative movement with respect to a, the guide plate 4 having a mountain-shaped cross section is provided at the portion of the beam 4b where the auxiliary roller 30a abuts and rotates.
a is provided. The pressing belt 20 is for preventing the sheet 5 from being rolled up, and the pressing belt 20 has both ends fixed to the top and the lower portion of the roof frame portion 21 in a state in which a constant tension is applied.

In the second embodiment of the house, the auxiliary rollers 30a and 30b facilitate the movement of the guide 19 that accompanies the winding and unwinding of the sheet 5. Further, the guide 19 is moved along the roof frame portion 21 and the pressing belt 20 by the guided portion 22 of the side plate 19a. For this reason, the meandering of the guide 19 caused by the winding and rewinding of the sheet 5 is eliminated. Further, in this house, since the sheet 5 is pressed at both side edges by the pressing belt 20, the sheet 5 is less likely to be rolled up by wind or the like.

In the house having the seat roof of the second embodiment, the pressing belt 20 is provided only on the guides 19 at both ends of the winding shaft 8. However, the pressing belt can also be provided on the guide in the center of the winding shaft 8. It is also preferable to integrally fix all the guides mounted on the winding shaft 8 with, for example, a through shaft (not shown) to prevent the meandering of the guides caused by winding and rewinding. ..

[Third Embodiment] A third embodiment of a house having a seat roof according to the present invention is shown in FIGS. In this house, the winding and unwinding directions of the sheet 5 of the first embodiment are reversed. The seat 5 has a wide width that covers the entire roof frame portion 21, and the packer 20a is attached to the hype 40 whose center in the width direction is fixed to the top of the roof frame portion 21.
I fixed it by pressing. Then, the winding shafts 8 are wound from both end portions, the guides 9 are attached to the winding shafts 8, and the weight 1
3, the winding shaft 8 is biased obliquely downward.

As can be understood from the third embodiment, the biasing direction of the winding shaft 8 can be arbitrarily selected according to the purpose of use.

[Brief description of drawings]

FIG. 1 is an overall sectional view of a first embodiment.

FIG. 2 is an enlarged perspective view of an essential part of the first embodiment.

FIG. 3 is an enlarged front view of the guide showing a usage state of the first embodiment.

FIG. 4 is an overall perspective view of a second embodiment.

FIG. 5 is an enlarged main part perspective view of the second embodiment.

FIG. 6 is an enlarged front view of a guide showing a usage state of the second embodiment.

FIG. 7 is an overall sectional view of a third embodiment.

FIG. 8 is an enlarged main part sectional view of a third embodiment.

[Explanation of symbols]

1 ... House main body, 2, 21 ... Roof frame part, 3 ... Side wall frame part,
4 ... Beam material, 5 ... Sheet, 8 ... Winding shaft, 9, 9a ... Guide, 13 ... Weight, 14 ... Wire

Claims (3)

[Claims] 1. A house main body having a roof frame part, and a sheet having one end fixed to one side of the roof frame part to form a roof,
A winding shaft that winds the other end of the sheet, a guide that rotatably holds the winding shaft via a sheet on the winding shaft, and urges the guide to the other side of the roof frame portion. A house having a seat roof including a biasing member and a drive device that rotationally drives the winding shaft. 2. A sheet having one end fixed to one side of a frame portion and stretched on the frame portion, a winding shaft for winding the other end of the sheet, and the winding via the sheet on the winding shaft. A guide that holds the shaft rotatably, an urging member that urges the guide to the other side of the frame, and a drive device that rotationally drives the winding shaft to rewind and rewind the sheet with respect to the winding shaft. A sheet rewinding and rewinding device consisting of. 3. A C-shaped skeleton portion having an opening portion which is an inlet / outlet of a sheet portion which is not wound and which is inserted through a winding shaft having one end portion of the sheet wound, and both ends of the opening portion are formed. A sheet winding / rewinding guide having rollers which are respectively provided at open ends of the sheet and which rotatably hold the winding shaft.