JPS5862238A - Seat opening and closing apparatus - 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 sheet opening/closing device installed on a roof or the like for heat retention or light shielding.

In general, a winding-type sheet opening/closing device has a driving machine fixed to the top of a roof, etc., and when the driving machine is operated, the sheet winding shaft rolls through a rope, and the seal is rolled onto the winding shaft. The seat was opened and closed by , or by unrolling it. In such a structure, since the winding shaft is transferred through the rope, the sheet may not be smoothly wound or unwound due to entanglement or loosening of the rope.

For this reason, the inventors of the present invention have developed a seat opening/closing device shown in FIG. This seat opening/closing device has an inclined seat holding frame 1 and a guide rail 2 parallel to the inclination.
The guide rail 2IF and the drive machine 3 are slidably connected to each other, and the winding shaft 6 is coaxially connected to the output shaft 4 of the drive machine 3, and the drive machine 3 is slid along the kite rail 2. The sheet 6 is wound up and unwound onto the winding shaft 6 by moving the winding shaft 4 and rotating the output shaft 4.

By the way, in the case where the drive unit 3 is slid along the guide rail 2 in this way, there is a risk that the seat 6 will be subjected to a force in the direction of sliding down along the motor trail 2, causing damage to the seat 6. be. Especially used for agricultural greenhouses. , 05t and other extremely thin vinyl sheets cannot withstand use.

The present invention has been made with the above-mentioned problems in mind, and an object of the present invention is to prevent damage to the seat in a device that opens and closes the seat using a slidable drive device.

In order to achieve this purpose, the basic structure of this concept is to provide a guide rail on the slanted seat holding frame. A tapered drum is coaxially fixed to the winding shaft, and the rope is wound from the small diameter side of the tapered drum to the large diameter side, and the rope is wound from the large diameter side of the tapered drum to the large diameter side. It is equipped with a rope that is wound on the small side and whose winding direction is different from that of the rope, and the other end of each rope is fixed to the upper and lower parts.

With this configuration, the rope supports the winding shaft.

This prevents the load of the prime mover that would be applied to the winding shaft from being applied to the sheet, thereby protecting the sheet and allowing smooth opening and closing operations.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, reference numeral 7 denotes a sheet holding frame body which is tilted in the shape of a chevron, has a guide rail 8 parallel to the slope, and holds a sheet 9 at the top.

A driving machine 1o is slidably mounted on the guide rail 2. That is, the driving machine 10 is held by the kite rail 8 by fitting the fitting hole 11 into the guide rail 8. And the output shaft 12 in the direction perpendicular to the guide rail 2
It has two rollers 13 and 13' below both sides of the output shaft 12, and the output shaft 12 is brought into contact with the upper part of the guide rail 8, and the rollers 13 and 13' are brought into contact with the lower part of the guide rail 8. are in contact with each other. The output shaft 12 is connected to a speed reducer (
The winding shaft 14 of the sheet 9 is coaxially connected to the winding shaft 14 of the sheet 9. A tapered drum 16 is coaxially fixed to the winding shaft 14. One end of the tapered drum 16 is fixed to the small diameter side of the tapered drum 15, and the other end is fixed to the upper part of the sheet holding frame 7, and the tapered drum 16 is wound from the small diameter side to the large diameter side with the same Q. The first rope 16 has one end fixed to the large diameter side of the tapered drum 16, the other end fixed to the lower part of the sheet holding frame 7, and is wound from the large diameter side to the small diameter side of the tapered drum 16, and A second rope 17 whose winding direction is different from that of the first rope 16 is provided.

In the above configuration, the drive machine 1o is driven, and its output shaft 1
2 in the clockwise direction as shown in Fig. 2, the rollers 13, 13'
rotates in the B direction, and the drive machine 10 moves in the C direction. A take-up shaft 14 coaxially connected to the output shaft 12 also rotates in the same direction as the output shaft 12 to wind up the sheet 9. Further, when the rotation of the output shaft 12 is reversed, the above operation is reversed, and the sheet 9 is rewound.

By the way, the winding shaft 12 is fitted with a tapered drum, and this first. The ends of the second rope 16.1 are fixed to the upper and lower parts of the seat holding frame 7,
Therefore, the winding shaft 12 is pulled vertically by both ropes 16 and 17. Therefore, the winding shaft 1
Even if the weight of the drive machine 10 acts downward in the second case, the load is supported by the ropes 16 and 17, and the winding shaft 12 does not slip downward. Therefore, the sheet 9 wound around the take-up shaft 12' will not be torn due to excessive force. Since the two ropes 15 and 17 are wound around the tapered drum 16 from different ends, the winding diameter of the sheet 9 wound around the winding shaft 12 changes, and the output shaft 12 The ropes 18, 17 can be attached to the tapered drum 16 without loosening even if the amount of transfer per rotation changes.

As explained above, the present invention rotates the winding shaft while sliding the drive machine to open and close the sheet by winding and unwinding the sheet. It does not apply excessive force to the seat, and the seat can be opened and closed smoothly, so it is of great value.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a seat opening/closing device according to an embodiment of the present invention;
FIG. 2 is a perspective view of the essential parts, and FIG. 3 is a perspective view of the seat opening/closing device that is the premise of the present invention. 7...Seat holding frame body, 8...Guide rail, 9...Seat, 10...Driver, 12...Output shaft, 14・・・・・・Take-up shaft,
16...Taper drum, 16°17...
··rope. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 figure

Claims (1)

[Claims] The seat holding frame includes an inclined seat holding frame and a seat held on the seat holding frame, the seat holding frame is provided with a guide rail parallel to the inclination, and the drive machine is slidably moved by the guide rail. a sheet winding shaft is coaxially connected to the output shaft of the drive machine, and a tapered drum is fixed concentrically to the winding shaft, so that the sheet is wound from the small diameter side to the large diameter side of the tapered drum. A seat opening/closing device comprising a rope and a tapered drum, the rope being wound from the large diameter side to the small diameter side and having a winding direction different from that of the rope, the other end of each rope being fixed to an upper part and a lower part, respectively. .