JPS61226099A - Drying 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] (Technical Field of the Invention) The present invention automatically unfolds a tarpaulin sheet during rain.
This relates to a clothes drying device that protects dried items from rain.

(Prior art) A waterproof sheet wound into a roll and having a fixed free end is placed on top of an inclined frame, and when a raindrop sensor detects rain, the rolled waterproof sheet is thrown onto the inclined frame and rewound. A clothes drying device that could be expanded was developed in 1982.
-171.690.

(Problems to be Solved by the Invention) When the above-mentioned conventional device re-sets the unfolded waterproof sheet on the above-mentioned inclined frame, the unfolded sheet is rolled from the lower end side of the inclined frame to the top of the inclined frame in the same way as a juter. It is necessary to roll the paper up to the side, but doing so at a high place is extremely troublesome and dangerous.

(Means for Solving the Problems) In view of the problems of the conventional device, the present invention has been developed by rotatably supporting the winding shaft of a waterproof sheet, and attaching a weight to the free end of the sheet. An unwinding force is applied to the winding shaft. and a rotation prevention means for preventing rotation of the winding shaft in the unwinding direction, and means for releasing the rotation prevention state by the rotation prevention means based on the output of the raindrop sensor.
A winding shaft rotating means is provided for rotating the winding shaft in order to wind up the waterproof sheet.

(Function) According to the above configuration, the sheet is rewound by the unwinding force of the weight, and the sheet is wound up by the winding shaft rotating means.

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 1 illustrates the configuration of a sheet drive mechanism of a clothes drying device according to the present invention.

This sheet drive mechanism is applied to a roofed balcony as shown in FIG. A mold gear 3 and a pulley 4 are attached to one end of the shaft 2. Further, a rod-shaped weight 5 is attached along the free end of the sheet 1.

Further, two guide rails 7 are provided at both ends of the plow 5 for vertically guiding rollers 6, respectively.

Note that the winding shaft 2. Type gear 3 cans: 4, Yo, Arrow, Pulley 4
is housed in a casing 8 shown in FIG. 3 disposed along the front edge of the balcony roof.

A solenoid 9 is disposed above the type gear 3, and a second solenoid 9 is provided above the mold gear 3.
As shown in the figure, a key 10 connected to the plunger of this solenoid 9 engages with a pawl of the mold gear 3.

Further, an endless wire 11 is wound around the pulley 4.

A raindrop sensor 12 disposed on the side of the solenoid 9 is provided to detect rainfall. Although any known raindrop sensor 12 may be used, this embodiment uses a raindrop sensor having a configuration as shown in FIG. 4.

This sensor 12 has a plurality of conductive plates 121A and 121B made of aluminum or the like alternately stacked with insulating plates 122 in between, and the ends of the conductive plates 121A are commonly connected by a current collecting rod 123A, and the ends of the conductive plates 121B are It has a configuration in which the end portion is connected through a wire rod 123B + '2m'. In the case of a sensor with such a configuration, the rod 123A,
The resistance value between 123B shows infinity, and the conductive plates 121A,
When water droplets are attached across the 121B, the resistance value decreases to a finite value.

Note that the sensor configured as described above includes the conductive plate 121A,
By adjusting the spacing of 121B, raindrops can be reduced.
fii, ok, 3ka, □, 1, yay. ↓It is easy to replace the electric board.

FIG. 5 illustrates a solenoid drive circuit that operates the solenoid 9 based on a change in the resistance value of the raindrop sensor 12. The comparison circuit 13 shown in the figure has a built-in Pritsuno circuit that detects a change in the resistance value of one sensor 12, and has the function of outputting a raindrop detection signal of logic level "1" when this resistance value change exceeds a certain level. Eggplant. The signal from the comparator circuit 13 is inputted to the one-shot circuit 15 via the OR circuit 14, thereby activating the solenoid 9.

Note that the one-shot circuit 15 is configured to output a drive signal having a time width equal to or longer than X hours required to complete lowering of the waterproof sheet by one force I.

In this embodiment, when the wire 11 shown in FIG. 1 is operated in the direction of the arrow, the mold gear 3 pushes up the key 10 shown in FIG. 1 is wound onto the winding shaft 2 @ When the sheet is wound up until the weight 5 is located on the lower surface of the casing 8 shown in FIG. ! Since the rotational force in direction B is applied, the key 10 is locked to the pawl of the gear 3, and rotation of the winding shaft 2 in the unwinding direction is prevented.

In this state, when the raindrop sensor 12 detects rain, the solenoid 9 is activated and the mold gear 3 is unlocked by the key 10. At this time, since a rotational force in the rewinding direction by the weight 5 is acting on the winding shaft 2, the shaft 2 is rotated in the rewinding direction as the lock is released.
As a result, the weight 5 descends while being guided by the guide rail 7.

When the weight 5 descends to a position where it comes into contact with the frame 16 of the balcony shown in FIG. 3, the space in front of the balcony is covered with the waterproof sheet 1. As a result, the waterproof sheet prevents rain from entering from the front of the balcony.

Note that balconies of condominiums, etc. are surrounded by walls on both sides, so there is no need to worry about rain entering from the sides, but in the case of a balcony like the one shown in Figure 3, it is necessary to Accordingly, seat drive mechanisms similar to those described above are also provided on both sides. In that case, the raindrop sensor 12 can be shared by each drive mechanism.

Furthermore, in the above embodiment, the upper half of the front space of the balcony is covered with the waterproof sheet 1 (by extending the guide rail 7 to the balcony floor, the entire front space can be covered). .

Further, if the waterproof sheet 1 is to be deployed to protect against dust, etc., the push button switch PB shown in FIG. 5 may be pressed.

FIG. 6 shows another embodiment of the present invention applied to a balcony or the like without a roof.

In this example, the two idle rails 70 and 70 whose upper half is bent toward the eaves of the house shown in the figure
are arranged on one side and the other side of the balcony, etc., and the above-mentioned seat drive mechanism is arranged at the two ends of these guide rails.

The upper half of the guide rail 70 forms a predetermined downward slope, so that the rotational force in the unwinding direction based on the gravity of the weight 5 acts on the winding shaft 2 in this embodiment as well. Therefore, when the sensor 12 detects rain and the solenoid 9 is activated, the weight 5 is guided by the guide rail 70 and lowers under its own weight to the lower end of the guide rail 7, thereby causing the weight 5 to descend to the bottom of the balcony or the like. is the tarpaulin sheet 1
covered with

Note that if a spring 17 is disposed at the upper end of the guide rail 70 as shown in FIG. 7, and the spring 17 is compressed by the roller 6 when winding up the sheet 1, the IT excitation of the solenoid 9 can be reduced. Since the weight 5 is pushed out in the iIT direction by the reaction force of the spring 17 during movement, unwinding of the waterproof sheet 1 is started more appropriately and quickly.

By the way, instead of the fixed roof shown in Figure 3.

By providing a movable roof 18 as shown in FIG. 8 and moving the movable roof 18 when it rains, it is possible to increase the amount of sunlight incident at all times (during clear weather).

The movable roof 18 is horizontally suspended on two support arms 19 that protrude from the house side toward the front side of the balcony, and as shown in FIG. It is fitted into the rail 21 on the arm.

Further, a locking piece 22 is formed on the upper surface of the movable roof 18, and a key 24 operated by a solenoid 23 is locked to the locking piece 22.

The support arm 19 is arranged to be inclined so as to form a downward slope of an angle θ toward the tip side, and movement of the movable roof 18 based on this slope is prohibited by the locking action of the key 24. .

Now, when the sensor 12 detects rain and the solenoid 23 is activated, the lock by the key 24 is released and the movable roof 18 moves toward the tip of the support arm 17 by its own weight. As a result, the area above the balcony is covered with a movable roof 18, thereby protecting the drying items from rain.

By the way, when raindrops are detected by one raindrop sensor 12 as shown in each of the above embodiments.

There is a possibility that the sensor may be activated accidentally due to the adhesion of water droplets or conductive dust from an air conditioner or the like.

In order to prevent such inconvenience, a plurality of raindrop sensors 12-1, 12-2, as shown in FIG. ... and comparison circuit 13-1.13-2. ...via A logic circuit 2 that outputs a solenoid activation signal only when the number of raindrop detection signals 8111 input from those comparison circuits is greater than or equal to a predetermined number.
5 may be provided.

FIG. 11 shows the logic circuit 2 when the number of sensors is three.
5 is shown. This logic circuit 25 includes an AND circuit 251. AND circuit 252 to which the output of comparison circuit 13-2 and the output of comparison circuit 13-3 are input. AND circuit 253 into which the output of comparison circuit 13-3 and the output of comparison circuit 13-1 are input, and each AND circuit 251 to 253
The apparatus includes an OR circuit 254 to which the output of 1 is input, and therefore outputs a solenoid activation signal only when any two of the three sensors detect rain. In other words, the circuit 25 outputs an activation signal based on majority logic.

Note that the logic circuit 25 may be configured so that the activation signal is output only when all three sensors are activated.

FIG. 12 shows an improved example of the drive circuit 1 to 1 shown in FIG. In the drive circuit shown in FIG. 12, the optical sensor 26 and the comparison circuit 27, which outputs a signal of logic level "'1" when the output of the sensor 26 exceeds a predetermined level, are connected to the fifth circuit. In addition to the circuit shown in the figure, the comparison circuit 27
The output of is applied to the OR circuit 14.

The comparison circuit 27 has a comparison threshold set so as to output a signal when the circumference θH of the optical sensor 26 becomes dark. Therefore, if such a drive circuit is used, it is possible to The sheet 1 is automatically unfolded, thereby preventing night moths from landing on the dried fish.

In addition, when using the power source 1-battery ξ' of the drive circuit and charging this battery with a solar cell,
The solar cell can function as the optical sensor. That is, since the output voltage of the solar cell decreases at nightfall, by inputting the output voltage to the comparison circuit 27, the sheet can be deployed at nightfall.

(Effects of the Invention) In the present invention, the winding shaft of the waterproof sheet is rotatably supported, and the winding shaft is rotationally driven to wind up the waterproof sheet.

Therefore, compared to the conventional device, the winding up of the tarpaulin sheet is 74.
．． 4 can be carried out safely and easily.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the configuration of a sheet drive mechanism of a clothes drying device according to the present invention, Fig. 2 is a view showing a manner in which a pawl gear and a key are engaged, and Fig. 3 is a view showing a configuration example of a seat drive mechanism of a clothes drying device according to the present invention. Fig. 4 is a perspective view showing an example of a raindrop sensor, Fig. 5 is a block diagram showing an example of a circuit for driving a solenoid, and Fig. 6 shows another embodiment of the present invention. FIG. 7 is a partial perspective view showing a state in which a spring is interposed at the upper end of the guide rail in the embodiment shown in FIG. 6, and FIG. 8 is a perspective view showing an example of a movable roof type clothes drying device. 9 is an enlarged view of the main parts of the clothes drying device shown in FIG. 8, FIG. 10 is a block diagram showing the configuration of a processing circuit applied when using multiple raindrop sensors, and FIG. Figures 2g and 12 are block diagrams showing other examples of the solenoid drive circuit. 1... Waterproof sheet, 2... Winding shaft, 3... Pawl gear,
4... Pulley, 5... Weight, 6... Roller, 7,
7o...Guide rail%8...Keizong, 9.2
3... Lenoid, 10... Key, 11... Wire, 12... Raindrop sensor, 13.27... Comparison circuit 515... One-shot circuit, 17... Spring, 18...
...Moving roof, 21... Support arm, 25... Logic circuit, 26... Light sensor.

Claims (1)

[Claims] A waterproof sheet is wound around a winding shaft and placed horizontally at a high place, and a means for unwinding the waterproof sheet based on the output of a raindrop sensor is provided. In the clothes drying device configured to cover the winding shaft, the winding shaft is rotatably supported, a weight is attached to the free end of the waterproof sheet to apply an unwinding force to the winding shaft, and the winding shaft is rotatably supported. rotation prevention means for preventing rotation in the unwinding direction; means for releasing the rotation prevention state by the rotation prevention means based on the output of the raindrop sensor; and rotation of the winding shaft in the direction in which the waterproof sheet is wound. What is claimed is: 1. A clothes drying device characterized by comprising a winding shaft rotation means for rotating a winding shaft.