JPS5820125A - Curtain take-up apparatus of greenhouse - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a greenhouse curtain winding device. - This is a device for winding up the curtain stretched on the j.

Conventionally, a roll-up type curtain opening/closing device for a greenhouse or the like has been frequently used because the curtain is in the folded state at its minimum.

In the case of this winding type, usually in order to simplify the device configuration, nine guide rails are provided on both sides of the curtain, with a chain or other track running parallel to the roof floor, and a tin rocket that meshes with the track of the guide rail. is pivotally supported on a moving body, one end edge of the curtain is fixed using the axis of this sprocket as a winding axis, and the other end is fixed above the greenhouse, the moving body is moved by a drive mechanism, and a tin rocket is created by the movement. The curtains were rolled up or rewound by the rotation of the curtain.

However, when a curtain is rolled up, it becomes a roll on its winding shaft! Since the R diameter increases and changes, the moving distance of the winding shaft, that is, the moving distance due to the rotation of the sprocket,
The winding amount is not the same, and depending on the setting, tension may be applied to the curtain, straining the moving body, winding shaft, and curtain, or the curtain winding MR may become loose. It was inevitable that some inconvenience would occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a curtain winding device in which the moving distance of the winding shaft and the winding amount are made the same, and the curtain, moving body, drive mechanism, etc. are not strained. The gist of this is that an abacus bead-shaped guide wheel is fixed near both ends of the winding shaft for winding the curtain, and a pair of guide plates are attached to the winding shaft so as to touch the inner conical surface of the guide wheel from the side. At the same time, the width of the gap between the pair of guide plates becomes gradually narrower in the winding direction so that the curtain winding surface of the winding shaft is always on the same plane as the contact part of the guide plate and the guide wheel. Furthermore, a movable body is arranged on the winding shaft so that the winding shaft can rotate freely, and this movable body is moved by a drive mechanism, and the guide wheel is rolled by the °C1 guide plate without sliding. It lies in the fact that it is made to move.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In the figure, reference numeral 1 denotes a curtain stretched inside the greenhouse. One end of the curtain 1 is fixed to a curtain fixing shaft 2 located above the greenhouse, and the other end is fixed to a winding shaft 3. .

Guide wheels 4 are fixed to the winding shaft 3 in the vicinity of its both ends in the shape of an abacus and whose cross section at the central axis is a parallelogram.

The guide wheel 4 is placed between the guide plates 5 formed by the pair of guide plates 5, and the inner conical surface 4^ of the guide wheel 4 is held between the inner edges of the pair of guide plates 5. Make contact so that the

The guide plate 5 is disposed at right angles to the winding shaft 3 and is inclined so as to gradually become higher as it goes in the winding direction, and the gap between the guide plates 5 becomes gradually narrower as it goes in the winding direction. It is shaped like this. Mounting holes are provided at both ends of the pair of guide plates 5, and bolts are inserted into the mounting holes 6A of the guide plate mounting portion 6 fixed to the support member A of the greenhouse, etc., and then tightened with nuts. The guide plate 5 is fixed. still,
The mounting hole 6A of the mounting portion 6 is a long hole extending in the axial direction of the winding shaft 3, and allows the width of the gap between the pair of guide plates 5 to be freely set.

In addition, if necessary, the contact surface between the guide wheel 4 and the guide plate 5,
tb, both sides 4A of the guide wheel 40 and the leg side edges of the guide plate 5 are provided with an engaging groove or a social protrusion in a direction perpendicular to the direction of movement, for example, to prevent sliding. (not shown) or a material with a high coefficient of friction may be pasted.In this case, the guide wheel 4 may be reliably transferred without sliding within the gap between the guide plates 5. Therefore, reliable winding can be performed. Further, in order to ensure the transfer of the guide wheel 4, a presser guide roller (not shown) may be provided that resiliently contacts and rotates on the back surface of the guide plate 5.

Furthermore, moving bodies T for moving the winding shaft 3 are attached to both ends of the winding shaft 3 so as to be rotatable with respect to the winding shaft 3. The movable body T is disposed on the winding shaft 3 via bearings, etc., and the movable body T is attached to a guide wheel 8 such as a chain sprocket or pulley disposed near both the upper and lower edges of the curtain 1 at both ends thereof. Both ends of the traction member 9, such as a chain or rope, are fixed. The traction member 9 is driven by being connected to a drive shaft of a drive mechanism 10 which is a motor having a speed reducer as appropriate.

1. Therefore, the traction member 9 rotates due to the operation of the drive mechanism 10, and the movable body 7 moves due to the rotation of the traction member 90, and the guide wheel 4 moves within the gap between the guide plates 5. It rolls without sliding by bringing its own conical surfaces 4A into contact with the inner edge.

In use, the gap between the guide plates 5 is set relative to the thickness of the curtain 1. This setting is to ensure that the winding surface of the kerf foot 1 of the winding shaft 3 and the contact portions of the guide wheel 4 and guide plate 5 are always on the same plane. In order to make the curtain winding diameter and the distance from the winding axis of the contact portion of the guide wheel 4 and the guide plate 5 the same at the winding end position and the winding end position, the gap between the guide plates 50 is set as described above. Each setting is made by adjusting the mounting position using the mounting hole 6A.

In the figure, reference numeral 11 denotes a curtain support wire for preventing the curtain 1 from sagging due to its own weight, and is optionally provided and stretched over a support member A or the like.

In addition, in the illustrated example, the drive mechanism 10 is connected to the upper guide wheel 8, but the drive mechanism 10 is not limited to this, and the drive mechanism 10 is attached to an appropriate position in relation to the support member A of the greenhouse or the like. Of course, it can be done.

Furthermore, the guide plate 5 is not limited to a plate-like object,
Other appropriate members may be used in consideration of bending and the like.

As described above, the present invention is constructed such that an abacus bead-shaped guide wheel 4 is fixed near both ends of the winding shaft 3 for winding the curtain 1, and a pair of guide wheels 4 are attached so as to be in contact with each other from the split conical surface 4AK11 of the guide wheel 4. A guide plate 5 is disposed perpendicularly to the winding shaft 3, and a pair of guide plates are arranged so that the surface of the winding shaft 3 where one roll of the car foot is stacked is always on the same plane as the contact portion of the guide plate 5 and the guide wheel 4. 50 gaps are formed so that the width becomes gradually narrower in the direction of winding and stacking movement, and furthermore, a movable body T is arranged on the winding shaft 3 so that the winding shaft 3 can rotate freely, and this movable body 7 is moved by the drive mechanism 10,
Since the guide wheel 4 is rolled on the guide plate 5 without sliding, it is possible to always match the travel distance of the moving body 7 and the winding amount of the curtain 1 with a simple configuration.

Therefore, the curtain 10 can be rolled up smoothly.
Unlike conventional curtains, tension is not applied to the curtain, which puts strain on not only the curtain, but also the drive mechanism, moving body, and take-up shaft, resulting in deterioration of durability and damage.
There is no chance that the curtain winding will become loose.

In addition, since the winding surface is always on the same plane as the guide plate 5, there is no unstable shaking of the curtain 1 during winding, and the deflection winding does not cause wrinkles etc. Not at all.

In addition, the amount of displacement of the winding diameter of the curtain 1, which varies according to the winding direction, is controlled by the guide wheel 4 within the gap of the guide plate 5, which gradually becomes narrower.
Since this corresponds to the amount of upward displacement of the winding shaft 3 due to the transfer of the winding shaft 3, the winding This makes it possible to make the amount and the moving distance of the winding shaft 3 the same.

As explained above, according to the present invention, the winding amount and the movement distance of the winding shaft can always be made the same due to the simple configuration, and therefore,
The curtain can be rolled up smoothly, its durability improved, and damage to the curtain, drive mechanism, moving body, etc. can be prevented, and furthermore, the curtain can be rolled up smoothly without any loosening when the curtain is wound. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view showing the whole, FIG. 2 is a sectional view taken along the line I-AM in FIG. Figure 4 is a sectional view taken along the line ■--■ in Figure 1 at the end of winding. A...Supporting member 1...Curtain
2... Fixed shaft 3... Winding shaft
4・・・・・・Guide wheel 4A・・・Conical surface
5... Guide plate 6... Weighted part 6A.
...Mounting hole 7...Moving object 8...
...Guide car 9 ...Sheep pulling member 10
... Drive mechanism 11 ... Curtain support wire patent application person: Hideyoshi Hayashi

Claims (1)

[Claims] 1. An abacus bead-shaped guide wheel is fixed near both ends of the winding shaft for winding the curtain, and a pair of guide plates are arranged at right angles to the winding shaft so as to touch both sides Mm of this guide wheel from the front. With,
The gap between the pair of guide plates is formed so that it becomes gradually narrower in the winding direction so that the curtain winding surface of the winding shaft is always on the same plane as the contact portion of the guide plate and the guide wheel. A moving body is disposed on the shaft so that the winding shaft can rotate freely, and this moving body is moved by a drive mechanism to cause the guide wheel to roll on the guide plate without sliding. Greenhouse curtain winding device.