JPH04200508A - Bedding equipment - Google Patents

Abstract

PURPOSE:To improve the use convenience and the safety by providing a hot air generating means and a presence-in-bed detecting means for detecting whether a person exists in an equipment main body or not on a bedding equipment main body. CONSTITUTION:A hot air generating means 1 in which an air blower 3 is contained has a blowout port 4 of hot air on the upper face. A control means 18 of the hot air generating means 1 consists of a presence-in-bed/absence-in-bed detecting means 19, a temperature detecting part 20 for a blowout temperature of the hot air generating means 1, an operating control part 24 for inputting a signal from the presence-in-bed detecting means 19, the temperature detecting part 20 and an operating key inlet part 21 and which controls a heater driver part 22 and a motor driver part 23, and a display means 25 for displaying a driving state of the hot air generating means. In such a way, when it is desired to use the hot air generating means 1, it can be used immediately, therefore, it is very convenient. Also, since presence-in-bed and absence-in-bed are detected by the presence-in-bed detecting means, such an extremely dangerous state as a drying switch of bedding is turned on at the time of sleeping can be prevented.

Description

[Detailed description of the invention] Industrial applications The present invention relates to bedding devices such as vents.

BACKGROUND OF THE INVENTION Conventionally, futons placed on beds of this type have been dried by the cumbersome method of drying them in the sun or using a futon drying unit to blow hot air into the interior of the futon.

Problems to be Solved by the Invention Although futon drying units currently on the market are very convenient, there are frequent complaints from the market that they are very troublesome to use. Therefore, it would be a good idea to embed a futon drying unit in the main body of the bedding device to eliminate this hassle. However, if it is buried in the bedding device itself,
Although it is very easy to use, it has the problem that if a nearby child, for example, presses the switch on the futon drying unit while sleeping, the futon drying unit will start operating immediately, which is dangerous.

The present invention solves these conventional problems and provides a safe bedding device that does not operate even if the futon drying switch is pressed while a person is on the bedding device itself or sleeping. The purpose is to

Means for Solving the Problems In order to solve the above problems, the bedding device of the present invention includes a warm air generating means provided in the bedding device main body, and a bed presence detection device for detecting whether there is a person in the bedding device main body. and an operating means for operating the warm air generating means, and when the bed presence detecting means detects that the bed has changed from a bed occupied to an absent bed, the drive of the warm air generating means is controlled to a certain level. It is equipped with control means for disabling time.

Operation The present invention has the above-described configuration and is equipped with a bed presence detection means for detecting whether there is a person on the bedding device (hendo), so that by inputting the output signal of the bed presence detection means to the control means, The control means can detect whether a bed is present or not. Further, an input signal from the operating means is input to the control means. The control means uses this input signal and the detection signal of occupied bed and absent bed as input signals to determine the state. Even if there is an input signal from the operating means, the control means acts so as not to output a drive signal to the warm air generating means for a certain period of time when the bed changes from an occupied bed to an unoccupied bed.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. FIG. 1 is a bronc diagram showing the overall configuration of the bedding device. In the figure, 1 is a hot air generating means that includes a heater 2 and a blower 3, and has a hot air outlet 4 on the top surface. 5
The head pad 6 and the ends of the cloth 7 are sewn together, and a bag-like container having an air introduction part 8 at one end is used by laying it on the upper surface of the mattress 9.

The air outlet 4 and the air introduction section 8 are connected by a stretchable duct 10. In addition, 11 is the bedding device main body, and 12
1 is a pillow, and 13 is a bedding. 14 is a sensor for detecting the blowing temperature of the hot air generating means 1, and is composed of a thermistor. Further, 15 is a motor for rotationally driving the blower 3, and 16 is a piezoelectric element placed around the pinerest 9. Further, 17 is an operating means attached to the bedding device main body 11. 1 is a control means that inputs signals from the piezoelectric element 16 and the operation means 17 to control the hot air generation means 1. The details include a bed presence detection means 19 that inputs a signal from the piezoelectric element 16 and detects whether a bed is present or not; and a temperature detection section 20 that detects the blowing temperature of the hot air generation means 1.
, an operation key input section 21 which is an ink ace part with the operation means 17, and the heater 2 and motor 15 of the hot air generation means 1.
A heater driver part 22 and a motor driver part 23, which respectively drive
Heater driver part 22. It consists of an operation control section 24 that controls the motor driver part 23, a hot air generating means, and a display means 25 that displays the driving state. As the operation control section 24, an 8-bit microcomputer is used in this embodiment. FIG. 2 is a general view of the operating means 17, including a drying key 25a, a preheating key 25b, and respective display means 25c.
Consists of 25d. FIG. 3 is a circuit block diagram of the bed presence detection means 19, which is composed of an amplifier 25 with a bandpass filter, a rectification section 26, an integrating circuit 27, and a comparison section 28. In the above configuration, the operation is as follows. First, I will talk about bed presence detection. The element used in this embodiment is a piezoelectric element 16, which is placed around the pinerest 9. This element can detect heartbeat without contact, and generates a heartbeat signal (alternating current signal).
The amplifier 25 with a bandpass filter of the bed presence detection means 19
input and amplify with high gain. The waveform at that time is shown in Figure 4 (
Shown in A). Next, the output of the band-pass filtered amplifier 25 is input to a rectifier 26 for rectification. The waveform at that time is shown in Figure (B).

Next, the output of the rectifier 26 is input to an integrating circuit 27 for integration. The waveform at that time is shown in Figure (C). Then, the output of the integrating circuit 27 is input to the comparing section 28 to detect whether the bed is occupied or not. In other words, when a person is in the bedding device, there is always a heartbeat or body movement, and by detecting that signal with the piezoelectric element 16, rectifying and integrating it, if a person is present, a certain DC current is output as the output of the integrating circuit 27. It is possible to extract voltage with a certain level.

That is, by providing a certain reference potential in the comparator 28 and comparing it with the output signal of the integrating circuit 27, if a certain potential is output from the integrating circuit 27, the occupancy signal is determined by the comparing unit 2.
8 and input to the operation control section 24. In the operation control unit 24, if there is no bed presence detection signal, the operating means 1
When the drying key 25a or the preheating key 25b of No. 7 is pressed, the blowing temperature is detected by the thermistor 14 and detected by the temperature detecting section 20 in the control means 18, depending on the mode, and the heater of the hot air generating means l is detected. 2 and motor 15 are controlled via a heater driver 22 and a motor driver 23, respectively. However, as shown in Figure 4, when there is a person on the bedding device,
As soon as a person is present, it is not determined that the person is absent, and the operation control unit 24 recognizes that the person is absent after a long delay. This time is determined by the time constant of the integrating circuit 27 in the bed presence detection means 19, and is necessarily long because the heartbeat (approximately IH2) is being detected. In this embodiment, t is approximately 15 seconds. Furthermore, when the operation control section 24 determines that the bed is occupied, it acts so as not to drive the hot air generation means 1 even if the drying key 25a or the preheating key 25b of the operation means 17 is pressed. The drying key 25a and the preheating key 25 are activated within the period t.
When b is pressed, the operation control unit 24 recognizes that the bed is occupied even though the machine is actually not in the room, so the machine is not operated. For this reason, in the tree-embodiment, during time t the drying key 25
a. If the preheating key 25b is pressed, the display means 25 (drying LED, preheating L
ED) blinks to notify that it is in a waiting state, and after the elapse of time T, if it is in the absent state, the operation control section 24 drives the warm air generating means 1 and lights up the display means 25. However, if the person is still in bed after the time T has elapsed (the person is still on the bedding device), the blinking of the display means 25 is stopped and the light is turned off, and a drive signal is output to the warm air generation means 1. It works to prevent it from happening. Furthermore, if a person gets on the bedding device during drying or preheating, the operation control section 24 controls the motor driver 2.
3. Outputs a stop signal to the heater driver 22 and acts to stop the hot air generating means 1.

With this configuration, functions such as futon drying and preheating are embedded in the main body of the bedding device in the form of a hot air generating means, which is very convenient because it can be used whenever desired. However, even if the drying key or preheating key is pressed while sleeping, the presence detection means 19 detects whether the bed is occupied or not, so there is an extremely high risk of the futon drying switch being turned on while sleeping. situation can be prevented. In addition, in the configuration of this embodiment, there is a delay time t in transition from the occupied bed state to the unoccupied bed state, but since a display means for indicating the waiting time is provided, the drying key 25a and preheating can be activated within the period. Since pressing the key 25b does not invalidate the key 25b, the usability and stability are greatly improved.

In addition, since the bed presence detection means detects a person's heartbeat,
Since anything other than a person (such as using two futons or placing an object on the bedding device) is recognized as being absent on the bedding device, there is no problem.

Effects of the Invention As described above, the bedding device of the present invention provides the following effects.

(1) Since the bedding device has a built-in hot air generating means, when it is desired to dry futons, it can be operated immediately by an input signal from the operating means, so it is very easy to use.

(2) Even if you accidentally touch the futon drying key while sleeping, the bed presence detection means will detect whether the bed is occupied or not, and if the bed is occupied, the warm air generation means will not operate. Highly safe.

(3) If you use a bedding device while drying futons, the bed presence detection means will similarly detect the presence of a bed and automatically stop the operation of the warm air generation means, so you can operate it each time to stop the operation. There is no need to manipulate the means.

Therefore, it not only improves convenience but also has great effects in terms of safety.

(4) When the bed changes from an occupied bed to an unoccupied bed, even if the operation signal for the hot air generation means is input from the operating means, it will not operate for a certain period of time, so it will become an unoccupied bed and then immediately become an occupied bed. In this case, the operation signal will be canceled. Therefore, the hot air generating means will not be operated carelessly,
It is economical and the durability of the bedding device is improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the overall configuration of a bedding device according to an embodiment of the present invention, FIG. 2 is an overview diagram of the operating means of the same device, and FIG.
The figure is a circuit block diagram of the bed presence detection means of the same device, and FIG. 4 is a timing diagram showing the operation of bed presence detection of the same device. 1... Warm air generation means, 11... Bedding device main body, 17... Operation means, 18...
Control means, 19... Bed presence detection means. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] operating a warm air generating means provided on the bedding device main body, a bed presence detection means provided on the bedding device main body for detecting whether a person is occupied or absent in the bedding device main body, and the warm air generating means and an operating means for detecting a bed, and when the bed occupancy detecting means detects a change from an occupied bed to an absent bed, even if the operation signal of the hot air generating means is input from the operating means, A bedding device with control means that disables operation for a period of time.