JPS5921633Y2 - House film opening/closing drum device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drum device for opening and closing the covering film of an agricultural greenhouse.

Specifically, the drum 1 is rotatably supported by the support frame 4.
A shaft 3 on which a chain 2 is suspended and attached to a drum 1
One end of the film 5 is fixed to the drum 1 with the chain 2.
The present invention relates to a drum device that opens and closes a film in a house by rotating the film 5 to wind up or unwind the film 5 onto the shaft 3.

Conventionally, various methods of opening and closing the film of agricultural greenhouses have been devised.

Devices that fix a film to a shaft attached to a drum, rotate the drum by pulling a belt, and wind up the film to open and close it are already known and in use.

However, in conventional drum devices of this type, the belt tends to come off the drum during operation, and a separate device to stop the rotation of the drum is required in order to stop the drum in the middle of the roof frame and half-open the film. Furthermore, when the drum is located at the bottom of the house and lies down, the chain becomes entangled with the support frame that holds the drum, making it inoperable.

The present invention attempts to solve the drawbacks of the conventional drum device.

That is, the belt-shaped plates 4 1 that sandwich the drum 1 are provided so as to sandwich the outer circumference of the drum 1 at a required interval via the chain 2 to prevent the chain 2 from coming off. A chain guide ring 4 is provided on the V-shaped rod 4 fixed to 1 of 4, and when the chain 2 is operated, the direction of movement of the chain 2 is regulated and the chain 2 is In addition, a stopper 5 of the rod 4 is provided at the lower end of the V-shaped rod 4 1 to lock the chain 2 and prevent the rotation of the drum 1. It is an object of the present invention to provide a drum device which makes it possible to arbitrarily stop the drum 1 and stop the drum 1 at a desired position.

That is, the present invention is a disc body in which a groove 1, in which the chain 2 is suspended, is provided on the circumference of the disc body, and a shaft insertion tube 1, 2 is provided in the center, and the chain 2 is suspended around the shaft 3. A drum 1 that rotates by a pulling force, and a U-shaped strip plate 4 whose tip is curved to sandwich the drum 1, and a shaft insertion tube 4 2 is provided in the center. , the ■-shaped rod 4
3, an elliptical chain guide ring 4 4 is installed in the center of the coast, and a V-shaped rod 4 3 is fixed, with a rod-shaped stopper 4 5 protruding from the tip for hanging the ring of the chain 2. It consists of a drum support frame 4, the required chain 2, a shaft 3, and bolts and nuts, and the shaft 3 is attached to 2.4 of the shaft insertion tube 1.
is inserted, a chain 2 is attached to the drum 1 and assembled, one end of the film 5 is wound and fixed around the shaft 3, and the drum 1 is rotated by the chain 2 to open and close the film of the house. It is something to do.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

The illustrated example shows one embodiment, and the present invention is not limited to the illustrated example unless the gist of the invention is exceeded.

The present invention consists of a drum 1 that rotates by pulling a chain 2 suspended in one of the grooves 1 on the circumference, and a stopper 4 at the tip of the drum 1.
It consists of an isosceles triangular drum support frame 4 with a chain guide ring 4 provided in the center, and the required chains 2, shafts 3, and bolts and nuts.

The drum 1 has a disc shape, and the shaft insertion tube 1 into which the shaft 3 is inserted is fixed in the center thereof, and the circumferential part has a V-shaped cross section, and has a chain. A groove 1 1 in which the chain 2 is suspended is formed, and a protrusion 3 protrudes from both side wall surfaces of the groove 1 so that the chain 2 is fitted therein.

The drum support frame 4 includes a ■-shaped rod 4 at 1 of the strip plate 4.
3 is fixed to form an elongated isosceles triangular frame.

The belt-shaped plate 4 1 has a U-shape with curved ends, and the shaft insertion tube 4 2 is provided in the center of the drum 1 with the chain 2 suspended in the groove 1 of the drum. It is a plate shaped to hold the two sides at a required interval.

The two rods 3 of the V-shaped rod 4 are joined at one end to form an acute angle, and the other open end is fixed to 1 of the band-shaped plate 4.

A flat elliptical chain guide ring 4 is fixed to the central part of the ■-shaped rod body.

A chain 2 hanging down from the drum 1 is placed inside the chain guide ring 4.
is located.

In addition, a rod-shaped slot is attached to the rod-joining part of the ■-shaped rod.
4 and 5 are protruding and fixed.

The chain 2 has a general chain shape in which a large number of rings are connected, and is often of an endless type.

A chain 2 is suspended in one of the grooves 1 provided on the circumference of the drum 1, and engages with a protrusion protruding from both side walls of the groove 1, and when the chain 2 moves, the drum 1 rotates. It looks like this.

The chain 2 hanging down from the drum 1 is located inside the chain guide ring 4, so that even if the drum support frame 4 is tilted laterally,
The chain 2 from the circumference of the drum 1 to 4 of the chain guide ring 4 is configured to move in parallel to a line connecting the center of the drum 1 and the tip of the drum support frame 4.

The shaft 3 is inserted into 2 of the shaft insertion tubes 1 provided at the center of the drum 1 and 2 of the shaft insertion tubes 4 provided at the center of 1 of the strip plate 4 of the drum support frame 4,
It is fixed to the drum 1 and rotates in the same way as the drum 1 rotates.

One end of the film 5 is wound and fixed to the rod of the shaft 3.

Accordingly, as the drum 1 rotates, the film 5 is wound around the shaft 3 or unwound from the shaft 3.

The device of the present invention has the above configuration.

To install it in an agricultural greenhouse, the shaft 3 is placed on a plurality of roof ribs 6 and placed so as to slide up and down on the roof ribs 6, and is expanded to cover the roof ribs of the greenhouse. One end of the film 5 is fixed to the shaft 3 of the drum device of the present invention, and the other end is fixed to the purlin 7 of a house, for example.

When opening the roof, pull one chain 2 hanging down to rotate the drum 1, the shaft 3 will rotate, and the film 5 will rotate.
The roof surface is opened by sliding and climbing on the roof frame 6 while rolling it up.

To cover the roof surface with a film, on the other hand, pull the other hanging chain 2, the drum 1 will rotate in the opposite direction, the shaft will rotate in the opposite direction, and the weight of the shaft 3 will also be added to cover the roof. The film 5 is spread over the roof surface by sliding down the bone 6.

The drum device of the present invention has the following features: (1) During the above operation, the drum 1 is held between the band plates 4 1 and the chain 2 moves guided by the chain guide ring 4, so that the chain 2 does not come off the drum 1; ■Even when the drum device is located on the side of the frame of the house of the drum 1, that is, when the drum device is tilted sideways, the chain guide ring 4 is provided, so that the belt-shaped plate 4 and the chain 2 are As with other positions of the drum, the chain 2 does not get entangled with the band 1 of the plate 4, and when the chain 2 is pulled, the drum 1 rotates smoothly.

■Also, when the drum is stopped in the middle of the roof frame, as when the roof surface is left half-open, by connecting the chain 2 to the stopper 4 (5), the drum 1 will stop and stop rotating.
The film can be left half-open.

The device of the present invention is an excellent film opening/closing drum device having the features described above.

[Brief explanation of drawings]

Reference numerals 1 and 2 in FIG. 1 indicate a drum support frame that constitutes the present invention. 1 in FIG. 2 and 2 in FIG. 2 indicate drums constituting the present invention. FIG. 3 shows the chains that make up the invention. FIG. 4 shows the shaft constituting the invention. FIG. 5 is an external view of the drum device of the present invention. FIG. 6 is an external view of the drum device of the present invention when it is tilted. FIG. 7 shows a front cross section of the house and shows a state in which the drum device is stopped halfway. 1...Drum, 1 of 1...Groove, 1 of 2
...Shaft insertion tube, 1-3...Protrusion, 2...Chain, 3...Shaft, 4...
...Drum support frame, 4-1...Band plate body, 4-2...Shaft insertion tube, 4-3...
...■-shaped rod, 4 of 4...Chain guide ring, 4 of 5...Stopper, 5...Film,
6... Roof frame, 7... Purlin.

Claims (1)

[Scope of utility model registration request] A groove 1 in which a chain 2 is suspended is provided on the circumference of the disk body,
In addition, it is a disk body with a shaft insertion tube 1 and 2 provided in the center, and a drum 1 that rotates by the force of pulling a chain 2 around the inserted shaft 3 as an axis, and a curved tip part that holds the drum 1 between them. The U-shaped strip plate 4 1 has a shaft insertion tube 4 2 installed in the offshore center, and the V-shaped rod 4 3 has an elliptical shape in the offshore center. A drum support frame 4 is formed by a solidly mounted ■-shaped rod 4, on which a chain guide ring 4, 4, and a rod-shaped stopper 4, 5, protruding from the tip end thereof, on which the ring of the chain 2 is hung. , the required chain 2, shaft 3, and bolt/nut are assembled. Insert the shaft 3 into 2 and 4 of the shaft insertion tube 1, attach the chain 2 to the drum 1 and assemble it, and attach the film 5 to the shaft 3. A drum device that opens and closes the film of the house by winding and fixing one end and rotating the drum 1 with a chain 2.