JPH025999A - Movable bedding drier - Google Patents

Abstract

PURPOSE:To improve workability of work for drying bedclothes and dry the bedclothes uniformly and effectively by installing a surface heating body at an elevation mechanism freely movable up and down and mounting the elevation mechanism on a freely movable carriage. CONSTITUTION:A flat plate 2 is put in the condition of a dashed line by an elevation mechanism 6, and it is moved using a carriage 10 to a bed 18 having bedclothes (a) on it, where the carriage 10 is put under the bed 18. For moving it, the top part of the flat plate 2 is supported by a supporting rod 25 shown by a dashed line. Then the flat plate 2 is moved up and down by the elevation mechanism 6 to position a heating body 1, so a protective net 3 contacts the bedclothes (a), with the heating body 1 facing the bedclothes (a). A water content senser 19 and a temperature senser 20 are put in the condition to put the bedclothes (a) here, and they can be dried by putting curtains 5A-5C down.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a bedding dryer for drying bedding such as futons used in hospitals, hotels, etc.

(Prior Art) Conventionally, this type of commercial bedding dryer is known to be fixed in advance at a drying location or mounted on a dedicated vehicle.

(Problem to be Solved by the Invention) As described above, since the conventional device is a fixed type, it is necessary to carry the bedding one by one to the place where the dryer is installed or to a special car where the dryer is loaded to dry it. There is the inconvenience of not being able to do this, and the problem is that workability is poor.

Therefore, a first object of the present invention is to improve the workability when drying bedding and to dry the bedding uniformly and efficiently.

A second object of the present invention is to achieve a constant dry state regardless of the moisture content of bedding.

(Means for Solving the Problems) The invention for achieving the first object is provided by attaching a one-plane heating element to a lifting mechanism that can be raised and lowered, and mounting the lifting mechanism on a movable platform. It is something.

Further, the invention for achieving the second object includes a planar heating element facing the drying object, an elevating mechanism for elevating and lowering the heating element, and a movable table for moving the elevating mechanism. A moisture content sensor that detects the moisture content of the target.

and a stop means for stopping the heating operation of the heat generating element when the detected moisture content reaches a stop value.

(Function) Since the invention that achieves the first object has the movable table 10, it can be easily moved to a position such as a bed where bedding such as a futon a is placed.

When drying, the heating element 1 is made to face the bedding by operating the elevating mechanism 6, and in this state, the heating element 1 is activated.

Thereby, the heat generated by the heating element 1 is uniformly applied to the bedding, so that the bedding is dried uniformly and the drying efficiency is high.

Further, the invention that achieves the second object has the following effects in addition to the same effects as the invention that achieves the first object [1].

That is, when the moisture content sensor 19 detects the moisture content of the bedding to be dried, and the detected moisture content reaches the stop moisture value,
The heating operation of the heating element 1 stops.

As a result, the bedding is finished with a constant moisture content regardless of its moisture content.

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

In the figure, numeral 1 is a flat heating element facing the bedding such as a futon a to be dried, and the heating element 1 is preferably a panel heater using electric heat or a far-infrared object. Protective net 3 that can be installed and ventilated
Cover the whole thing with a protective body such as.

On the left and right sides of the back surface of the flat plate 2, germicidal lamps 4.4 that emit ultraviolet light are placed in the length direction of the flat plate 2 (see Figure 2). As shown in the figure, extendable curtains 5A to 5C are attached to the sides to cover the space formed between the heating element 1 and the futon a when drying the heating element 1 facing the futon a.

The flat plate 2 configured in this way is attached to a pair of elevating mechanisms 6.6 formed by connecting links 7 and 8 at its left and right sides, so that the heating element 1 can be moved up and down. And the lifting mechanism 6
The link 8 is movable by casters 9 on a moving platform
0 angle 11 respectively.

The moving platform 10 is made up of a pair of left and right angles 11.11 and a connecting rod 12.12 that connects these two angles 11.11, and an exhaust fan 1 is attached to both the connecting rods 12.12.
Attach plate 13 that fixes 4. Two casters 9 are attached to the bottom of each angle 11. Further, although not shown in the drawings, a vertical adjustment WJ mechanism for adjusting the height is provided on the vertical portion of the angle 11.

The exhaust fan 14 has a telescopic duct 15, and the tip of the duct 15 is connected to an exhaust hole 16 bored in the flat plate 2. Therefore, as shown in FIG. 1, the exhaust fan 14 sucks the air between the heating element l and the futon a, purifies it with a built-in filter, and then exhausts the air. At that time, curtain 5A
The portion that opens without providing ~5C becomes the suction port 17. 1
8 is the bed on which the futon is placed.

Reference numeral 19 denotes a moisture content sensor for detecting the moisture content of the futon a, and as shown in FIG. 4, it is attached to the protective net 3 so that a pair of left and right measuring electrodes 19A, 19B press against the futon a during use. The moisture content sensor 19 detects changes in capacitance between measurement electrodes.

A temperature sensor 20 detects the surface temperature of the futon a, and is attached to the protective net 3 so that the surface temperature can be detected during drying.

21 is an exhaust fan 14, for example, for detecting the humidity of the air sucked by the exhaust fan 14 when drying the futon a.
This is a humidity sensor installed at the inlet.

Next, a block diagram of an electrical system according to an embodiment of the present invention configured as described above will be explained with reference to FIG.

30 to 32 are A/D converters that convert 47 outputs of the sensors 19 to 21, and each A/D converted signal is supplied to the microcomputer 34 via an input interface 33.

The microcomputer 34 controls each section based on the detection signals from the sensors 19 to 21, as shown in FIG.

35 is an output interface, which turns the heating element 1 ON and OFF.
A transistor TR that drives the relay R that is turned off is connected, and a power control circuit 36 that controls the power supplied to the heating element 1 as described later is connected. Further, the output interface 35 is connected to an exhaust fan control circuit 37 that controls the rotation speed of the exhaust fan 14 as described later.

Next, a usage example of the embodiment configured as above will be described.

First, the lifting mechanism 6 brings the flat plate 2 into the state shown by the dashed line, and the moving platform 10 moves the bed 1 on which the futon a is spread.
8, and then the moving table 10 is moved as shown in FIG.
Put it under bed 18. In addition, during movement, the upper part of the flat plate 2 is supported by a support rod 25 shown by a dashed line.

Next, when the flat plate 2 is raised and lowered by the lifting mechanism 6 to position the heating element 1 as shown in the figure, the protective net 3 comes into contact with the futon a, and the heating element 1 is brought into a state facing the futon a. Moreover, the moisture content sensor 19 and the temperature sensor 20 are now in a state of pressing the futon a, and when the curtains 5A to 5C are lowered, it becomes dry.

When the drying button (not shown) is pressed, the relay R connected to the collector of the transistor TH is energized and its contacts become as shown in Figure 3, so the heating element 1 is energized and starts generating heat. . When drying is started in this way, control as shown in FIG. 5 is started.

First, the moisture content detected by the moisture content sensor 19 is read (step St), and the detected moisture content is compared with a predetermined stop moisture value for stopping drying (step S2).

As a result of the comparison, if it exceeds the stop moisture value,
A reference temperature TS for temperature control according to the detected moisture content,
and a reference humidity RH for humidity control (step S3). These set values are set according to the detected moisture content, for example, as shown in FIGS. 6 and 7.

Next, the temperature detected by the temperature sensor 20 and the humidity sensor 2 are
The detected humidity of No. 1 is read respectively (step S4).

Next, the detected temperature is compared with the set reference temperature TS, and power control is performed according to the comparison result (step S5). In other words, when the detected temperature is higher than the reference temperature TS, the power control circuit 36 turns off the heat generating part. The power supplied to the IA is lowered, and when the temperature is below the reference temperature TS, the power supplied is increased or left as is.This makes it possible to suppress excessive temperature rise of the futon, thereby reducing the temperature at the end of drying. It is possible to maintain the product temperature at a predetermined value.

Next, the reference humidity RH where the detected humidity is set is
and controls the exhaust fan 14 according to the comparison result (step S6). In other words, when the humidity exceeds the reference humidity RH, the exhaust fan control circuit 37 increases the rotation speed of the exhaust fan 14 to meet the reference humidity. When the humidity is below RH, the rotational speed is lowered or left as it is, thereby increasing the dehumidifying ability and allowing drying without reducing the drying ability.

As a result of the above control, when the drying progresses and the moisture content detected by the moisture content sensor 19 falls below the stop moisture value, the relay R connected to the transistor TR is de-energized and the contact point is changed to the state shown in the third figure. Since the switch is made to the opposite side, the power to the heating element 1 is removed and drying is stopped. (Step S7).

Next, another embodiment of the present invention will be described.

This embodiment has a mechanical configuration similar to that of FIGS. 1 and 2, and also allows the operator to set the drying time using a timer.

An example of the operation of the embodiment configured as described above will be explained with reference to the time chart of FIG. 8.

Now, when the timer is set at time 11, the first
Only the heating element l shown in the figure is energized to start drying, and this state continues until time t2.

Therefore, the futon a is sufficiently misted during this preheating period T1.

Then, at time t2, the exhaust fan 14 shown in FIG.
is driven, and exhaustion of warm air between the futon a and the heating element 1 is started. In this way, exhaustion is started when the futon a is sufficiently warmed, so that moisture can be evaporated efficiently.

Next, at time t3 in the latter half of drying, the amount of heat generated by the heating element 1 is reduced, and drying continues in this state until time t4, at which time the power to the heating element 1 is removed.

Then, at the same time as the timer expires at time t5, the exhaust fan 14 stops exhausting. Therefore, during the cooling period T2 from time t4 to time t5, only the exhaust fan 14 is rotated for forced cooling, so the cooling time can be shortened compared to natural cooling, and it can be used more conveniently after drying is completed. be.

(Effect of the invention) As described above, in the invention of claim 1, since it is mobile,
Work efficiency is greatly improved by eliminating the need to transport the bedding to be dried one by one to the dryer, and the heating element is made into a planar shape so that heat can be applied widely to the bedding during drying, making it easier to dry. It becomes uniform and has good drying efficiency.

In addition, in the invention of claim 2, a moisture content sensor is provided and the operation of the heating element is stopped when the moisture content of the bedding reaches a predetermined value. Can be finished dry.

[Brief explanation of the drawing]

Fig. 1 is a front view of the embodiment of the present invention, Fig. 2 is a right side view thereof, Fig. 3 is a block diagram of its electrical system, Fig. 4 is a diagram showing the structure of the water content sensor, and Fig. 5 is a diagram of the present invention. FIG. 6 is a flowchart showing an example of the operation of the embodiment of the invention, and FIG. 6 is a diagram showing the relationship between detected moisture content and reference temperature. Figure 7 is a diagram showing the relationship between detected moisture content and reference humidity;
The figure is a time chart showing an example of the operation of another embodiment of the present invention. a is the futon, R is the relay, 1 is the heating element, 6 is the lifting mechanism,
10 is a moving table, 19 is a moisture content sensor, and 34 is a microcomputer. Figure 1

Claims (1)

[Scope of Claims] 1. A mobile bed dryer in which a planar heating element is attached to a lifting mechanism that can be raised and lowered, and the lifting mechanism is mounted on a movable platform. 2. A moisture content sensor that includes a planar heating element that faces the object to be dried, an elevating mechanism that raises and lowers the heating element, and a moving platform that moves the elevating mechanism, and that detects the moisture content of the object to be dried. A mobile bed dryer comprising: a stop means for stopping the heat generating operation of the heating element when the detected moisture content reaches a stop value.