JPH04161111A - Sleeping device - Google Patents

Abstract

PURPOSE:To obtain a safe and comfortable device by inputting a signal of an in-bed detecting means and lowering a blowout temperature of a ventilation unit in the case of being in-bed. CONSTITUTION:In an operation control part 24, in the case no in-bed detecting signal is present, when an operation is instructed by an operating means 17, the device becomes a high temperature mode (drying/preheating temperature is set, generally, 50-70 deg.C), and in accordance with this temperature setting, a blowout temperature is detected by a thermistor 14, detected by a temperature detecting part 20 in a control means 18, and a heater 2 and a motor 15 of a ventilation unit 1 are controlled through a heater driver 22 and a motor driver 23, respectively. In this case, when a person is in a bed 31, a heart rate or a body motion always is recognized, its signal is detected by a piezoelectric element 16, and when this detecting signal is inputted from an in-bed detecting means 19, and device is switched to a low temperature mode (sleep heating temperature is set, generally, about 38 deg.C), and by switching this temperature setting, the heater 2 and the motor 15 are controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sleeping device that dries and heats the inside of a sleeping bed, which is a sleeping space formed between foldable bedding and some bedding, and the bedding.

BACKGROUND ART Conventionally, there is a futon dryer as a device for drying bedding, but when used in bed, a blower unit 32 is installed on the floor as shown in FIG. 4, and a blower bag 33 is placed inside the bed.
The hot air from the blower unit 32 was blown through a duct 34. In addition, in order to preheat the inside of the bed, this futon dryer places a blower bag 33 on the top of the pine mattress 9, and then covers the top with a sheet to perform a dry make-up, blowing warm air into the blower bag 33. Was.

Problems to be Solved by the Invention However, with the above configuration, the air blowing bag 33 must be placed inside the bed every time the bedding is dried, which is troublesome as it takes time and effort to clean up after drying. was there. For this reason, you may want to use the air bag with the air bag placed on it even when you sleep. However, when you go to bed while the air is drying, your body warms up and feels good at first, but after a while it gets too warm and you can't sleep because of the heat, and you have to get up to turn off the blower unit. Additionally, if a child or the like activates the ventilation unit while sleeping, there is a problem in that they may be at risk of dehydration or low-temperature burns.

The present invention solves such conventional problems, and aims to provide a safe and comfortable sleeping device by lowering the temperature of the air blowing from the blower unit when there is a person in the bed.

Means for Solving the Problems In order to solve the above problems, the sleeping device of the present invention includes: a blower unit that sends warm air into the bed; a bed presence detection means that detects the presence/absence of a person in the bed; The apparatus further includes a control means that controls the temperature of the air outlet from the air blower unit, inputs a signal from the bed presence detection means, and lowers the air outlet temperature of the air blower unit if the bed is present.

Operation According to the present invention, by inputting the output signal of the bed detection means to the control means, the control means can detect whether the bed is occupied or not. If the blower unit is operating while the person is in bed, the temperature of the blower is lowered from high temperature to low temperature.

Example Embodiments of the present invention will be described based on FIGS. 1 to 3.

FIG. 1 is a block diagram showing the overall configuration of the sleeping device,
Reference numeral 1 denotes a blower unit that includes a heater 2 and a blower 3, and has a hot air outlet 4 on the top surface. Reference numeral 5 is a bag-like container made by sewing a bridge portion of a bed pad 6 and a cloth 7 and having an air introduction portion 8 at one end, and is used by laying it on the upper surface of a mattress 9. The air outlet 4 and the air introduction part 8 are connected by a stretchable dowel 0. 11 is the wooden frame of the bed itself, 12 is the pillow, and 13 is the bedding. 30 is a sheet covering the herad pad 6 and the pinerest 9; 31 is the sleeping space formed between the sheet 30 and the bedclothes 13; 14 is a temperature sensor that detects the temperature of the air outlet from the blower unit 1 using a thermistor; It is configured. Also, 15 is the ventilation 81
3 is a motor that rotates and 16 is a motor that rotates the pinerest 9.
This is a piezoelectric element placed around the

Further, 15 is a motor that rotationally drives the blower 3,
16 is a piezoelectric element placed around the pinerest 9.

Further, 17 is an operating means attached to the bed wooden frame 11. Reference numeral 18 denotes control means for controlling the blower unit 1 by inputting signals from the piezoelectric element 16, the operating means 17, and the temperature sensor 14. The details are piezoelectric element 1
6, a temperature detection section 20 that receives a signal from the temperature sensor 14 and detects the temperature of the air outlet from the blower unit 1, and an operating means 17. The operation key manual part 21 which is the interface part of the heater 2 and the motor 1 of the ventilation unit l
a heater driver part 22 that drives each of the heater drivers 5 and 5;
a motor driver part 23, and a bed presence detection means 19;
Inputs signals from a temperature detection section 20, an operation key input section 21, a heater driver section 22, and a motor driver section 23.
It consists of an operation control section 24 that controls As the operation control section 24, an 8-bit microcomputer is used in this embodiment. FIG. 2 is a circuit block diagram of the bed presence detection means 19, which includes a bandpass amplifier 25, a rectifying section 26, an integrating circuit 27, and a comparing section.

FIG. 3 explains the operation of bed presence detection.

In the above configuration, the operation is as follows. First, we will discuss bed presence detection. The element used in this example is a piezoelectric element 16.
and is laid around the pine tress 9. This element can detect a heartbeat without contact, and a heartbeat signal (alternating current signal) is input to the amplifier 25 with a bandpass filter of the bed presence detection means 19 and amplified with a high gain. The waveform at that time is shown in FIG. 3A.

Next, the output of the band-pass filtered amplifier 25 is input to a rectifier 26 for rectification. At that time, the waveform shown in FIG. 3B is inputted to an integrating circuit 27 in order to integrate the output of the zero-order rectifier 26. The waveform at that time is shown in FIG. 3C, and the output of the integrating circuit 27 is input to the comparator 28 to detect whether the bed is occupied or not. In other words, if a person is in the bed 31, there is always a heartbeat or body movement, and the piezoelectric element 16 detects this signal, rectifies and integrates it, and if there is a person, a certain DC level is output as the output of the integrating circuit 27. The voltage can be extracted.

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, when there is no bed presence detection signal, the operation means 1
If operation is instructed from 7, the high temperature mode (drying, preheating temperature setting, generally 50 to 70'C) will be activated.According to this temperature setting, the thermistor 14 will detect the blowout temperature, and the temperature detection within the control means 18 will be activated. 20 and controls the heater 2 and motor 15 of the blower unit 1 via the heater driver 22 and motor driver 23, respectively. Here, if the bed presence detection signal is input from the bed presence detection means 19, the mode is switched to a low temperature mode (sleeping heating temperature setting, generally around 38°C), and the heater 2 and motor 1 are switched to this temperature setting.
Control 5.

With the above configuration, by incorporating the ventilation unit l, which has functions such as futon drying, preheating, and bed heating, into the bed, it can be used immediately when you want to use it, making it very easy to use.
Furthermore, even if the blower unit 1 is operated while sleeping, the presence of the bed is detected by the bed presence detection means 19, so that the low temperature air is blown at the sleeping heating temperature setting, and dangers such as burns can be prevented. Furthermore, there are 8 high temperature modes for drying and preheating! When the user enters the bed at step a, when the presence of a bed is detected by the bed presence detection means 19, the sleep heating mode is switched to the low temperature mode, so that a comfortable temperature state is maintained.

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

(1) Even if the blower unit is activated unexpectedly while sleeping, the presence of the bed is detected by the bed presence detection means, and the control means is configured to reduce the temperature of the air blowing from the blower unit and blow air, so it is safe. The effect is significant from a sexual perspective.

(2) If someone enters the bed during high-temperature operation such as futon drying or preheating, the bed presence detection means detects the bed presence in the same way as above, and the control means lowers the temperature of the air blowing from the blower unit. Since the preheating operation is switched to the sleeping heating operation, it is effective in terms of comfort, convenience, and safety.

(3) As mentioned above, it is highly safe even when the blower unit is left in place, so it is easy to use without having to install and clean it up each time like a conventional futon dryer.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a sleeping device according to an embodiment of the present invention, FIG. 2 is a circuit block diagram of a bed presence detection means of the same device,
3A, B, and C are timing diagrams showing the bed presence detection operation of the device, and FIG. 4 is an external perspective view of the conventional sleeping device. 1...Blower unit, 18...Control means, 19...Bed presence detection means, 31...
In bed. Name of agent Patent attorney Akira Okaji Haga 2 people/---
Chew Unit 111-II m Drop # 19---Low floor? l! 1) Shell 31-1 Floor 111 Figure 2 Section/9 Figure 3 Section 4

Claims (1)

[Claims] a blower unit that sends warm air into the bed; bed presence detection means that detects the presence/absence of a person in the bed; and if a person is in the bed, the air outlet temperature of the blower unit is lowered. A sleeping device comprising control means.