JPS62292169A - Method and apparatus for reducing danger of noise from infant - 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] 3. Detailed Description of the Invention A child's crying is tolerated by the child's parents. However, neighbors perceive a crying child as noise and perceive this noise as a health problem. This situation indicates poor insulation of walls and floors. The present invention seeks to address this source of noise and reduce the risk of noise.

Cradles have been used since ancient times. Parents found that periodic motion had a positive effect on their children. The period of this operation typically ranges up to about 50 cycles per minute. It is not possible to achieve higher cycles with cradles or hanging cages.

Because it usually feels comfortable, bets have been formed to vibrate due to the resulting imbalance. Especially in the United States, there are various devices with coin meters,
However, these devices also have relatively low frequencies. It has been observed that unpleasant vibrations are transmitted through buildings.

Experience has shown that vibrations have the effect of relaxing tension in the human body. Concussive pine surge is a method that has been used for a long time. The vibration G is weakened by the body that processes it and is not transmitted to the surroundings. The same has been found in sexual vibrator devices on the latter market. An old rule of thumb is being expressed here in a new form.

Recent studies, particularly in infants, indicate that the crying observed in young infants is caused by internal convulsions. Spasms lead to pain, and pain leads to children's cries, and children have a tendency to cause trouble to those around them, albeit temporarily.

The present invention therefore seeks to eliminate the source of loud noises from infants. Knowledge of convulsions provides a solution to give the child a tremor that calms the attacks of convulsions. The frequency used for this process ranges from 800 to 2000 frequencies per minute. The technical problem is that while exposing the child's internal body to the mechanical load of the pulses, one must at the same time prevent the transmission of the pulse motion to the surrounding environment, which is a nuisance to the surroundings that is different from the child's cries. .

According to the invention, a method is provided for reducing the risk of noise emanating from infants, in particular, in which a child's resting place, such as a cot or a pram, is
It is characterized in that all parts which are subjected to mechanical vibrations in the frequency range of 800 to 2000 vibrations per minute and which, at the same time, come into contact with the surroundings of the child's resting place are supported by flexible vibration damping devices.

According to the present invention, there is also provided a method for reducing the risk of noise from infants as described above, as set forth in Claims 1 and 2. The concept according to the invention means that the child's resting place, which is a cot or a pram, is subjected to vibrations from the form of a vibration device. Such children cannot be handled directly, and unbalanced motors are used to achieve the greatest possible effect without disturbing the surroundings. However, despite the above, tremors still occur outside the rest area.

The result of the invention should be to dampen these vibrations. Therefore, the present invention includes the addition of damping to the surroundings. In strict mechanical terms, this means that the resting place is placed on the damping mechanism.

Suitable bets were found for children under 6 o's. Once the child was fed and made to burp, a routine was formed so that the child would go to bed. A small motor was attached to the edge of the bed.

The motor had a power of 7 W and a rotation speed of 1400 revolutions per minute. A circular disk made of plastic material with an oval hole was attached to the motor at the center of the circular disk by one end of the oval hole, and the disk was attached to the screw shaft of the motor by a standard nut.

The mounting was configured such that the center of the disc was located at one end of the center of the shaft. When the motor connected to the main part is started, the bed begins to vibrate at the same frequency as the speed of the motor. If this motor is started after the child eats,
The child seemed very happy and did not seem to cry, but if the motor was not started, a heart-rending noise was heard from the child after about 30 minutes, clearly indicating that the child was uncomfortable.

Previous attempts to reduce noise from children using conventional methods have had disastrous results. Families and neighbors are disturbed by the child's heart-rending cries after every meal. The parents noticed that their immediate neighbors looked at them with a special eye, as if the parents were clearly mistreating the child. But the use of a motor made the child quiet.

But the child's quietness becomes a new inconvenience.

It has been found that the natural frequency of the bed leads to amplification of the noise due to vibrations of the bed. Even though this noise has the tendency to be a nuisance to the surroundings, the solution to this particular problem is simple.

Bets are placed on flexible bases. The experiment shows that if each leg is placed under a special foot of urethane foam,
A polyurethane foam plastic material was shown to provide the best damping.

However, this is not always sufficient, since sometimes the sides of the bed come into contact with the walls, and it is therefore necessary to provide a damping layer of urethane foam also between the parts of the bed that are likely to come into contact with the adjacent walls and floor of the house. It was found necessary.

With a suitable standardized device for motor mounting, it is possible to supply the motor not only to the child's bed, but also to the pram in which the child sleeps outside on the balcony. Although the pram exhibits natural frequency phenomena, it has been found necessary to reduce interference from the pram with a polyurethane foam between the pram and its surroundings. Flexible wheels also provide good damping.

In this particular series of experiments utilizing the present invention, it has been found to be very useful to have a rotating plastic material disc provided with an oval hole. It was found that different substrata within the child's rest area had different attenuations of 8 m. Especially for the bed, a slightly greater imbalance was required than for the pram to prevent the child from crying after eating.

Experiments with other motors have shown that vibration frequencies that are too low are ineffective at dampening child crying. The effect of attenuating the surrounding nuisance caused by a crying child does not begin until speeds not exceeding 800 revolutions per minute occur in imbalance.

At frequencies above 2000 revolutions per minute, the base at the child's resting place dampens the effect and prevents vibrations from reaching the actual source of the noise, namely the child. At these high frequencies, children's cries occur such that the present invention cannot be used.

In spacing experiments for seismic frequencies, there are frequency ranges that are very easily transmitted through buildings. If a child's crying reaches a level that is a nuisance to those around him, it is inappropriate to remove one source of noise and channel it to another.
Reducing interference in a child's resting place is therefore necessary and an important part of the present invention. The design of the actual damping device can be done by those skilled in the art. The mass of the movement is very small, i.e. the child plus a resting place, and very flexible materials are used. Although polyurethane has been found to produce the best effect, this does not preclude the use of other damping devices.

In the absence of access to electrical power, a simple mechanical spring action mechanism provides good results in damping children's cries. It is possible to wind up the spring in such a way that it forms a given working time that depends on the tension of the spring. This has also been found to provide a very economical device.

Those skilled in the art will readily understand that an imbalance is not necessarily required for mounting on the actual motor shaft, and that it can be connected to other drive shafts. Those skilled in the art will also understand that the electric drive can be provided with conventional automatic devices for starting at a given time and stopping after a period of use.

To further automate the device that dampens children's cries,
The actual device can be fitted with a microphone which, at a noise level consisting of, for example, a child, will trigger the cry attenuator and the vibration of the child's resting place. This type of device is known to those skilled in the art.

However, despite the use of the automatic switch on the vibrator, the child's crying does not stop. This is a natural explanation for the child being depressed. In this case, an alarm in the form of a visual or audible signal can act after a certain amount of the activation time of the vibrating device, in which case the alarm calls the attention of the person caring for the child, for example in a hospital.

Noise can be a nuisance to people around you, especially within your home. This has a negative impact on the lives of residents and usually has an unfavorable effect on economic life. Therefore, disturbing those around you is harmful. If this is caused by noise, there are two possible solutions. The solution, often unnecessarily expensive, is to prevent the noise from being transmitted into the building, or to have someone react to the source of the noise.

The invention illustrates a method and a device for eliminating crying in children by introducing vibrations, which have an interfering effect in the child's resting place. The present invention means that this interference is attenuated by urethane foam or similar devices. The invention therefore provides that interference with a large number of different interference frequencies is acted upon by frequency, the latter transmitted through the building being sufficiently attenuated in the vicinity of the source.

Most newborn reactions are all-or-nothing.
Characterized by a type of response. A fully developed central nervous system is characterized by the functioning of the basic parts of the brain, a lack of good coordination. This means that even the slightest stimulus causes a non-functional overreaction. This condition occurs in 20% of newborns, with a reported average crying time of 4.5 hours per day, a condition known as "writhing."

The method of the invention involves the use of a neuropsychiatric principle known as habituation or the "accommodation process." This is a mechanism that works not only in adults but also in newborns. Its purpose is to prevent inappropriate information from reaching our brains.

A well-known example is how we feel about our clothes. It takes a few seconds for the sensation to go away due to getting used to it. Habituation occurs with any repetitive signal, and the more information there is, the greater the amount of habituation. This has consequences in drowsiness and actual sleep. A well-known example is that the monotony of information given to a driver causes him to fall asleep unexpectedly. Driving a car generates the same situation.

The idea of the method and device according to the invention is to produce a maximum habituation process. This is accomplished by simulating a vibration sensing system and a hearing system.

The integument of the newborn brain is activated through the habituation process;
The brainstem responds by decreasing the amplitude.

Therefore, overreacting newborns fall asleep with peace of mind.

From the above, it is clear that the upper limit frequency for sensing vibrations corresponds to 200 Orpm, and the lower limit frequency for hearing corresponds to aoorp-.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made to the accompanying drawings that illustrate embodiments of the present invention.

FIG. 1 is a front view showing a child's bed according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a sectional view taken along line 3--3 in FIG. In the figure, reference numeral 1 indicates a bed crossbar frame, and a reinforcing lower frame 2 is disposed below this frame. Attached to the lower frame 2 is a device 3 for reducing noise from children, which is connected to the power supply via an electric hood 4.

The device 3 is attached to a fixing frame 9, which is placed between the frame 2, with bolts and nuts 5. A motor 6 is provided within the device 3, and an imbalance 8 is attached to this shaft 7. The device 3 also includes a timer 10 with a scale;
An instruction lamp 11, a microphone 12 for transmitting noise from children, etc. are provided. Also, under each leg of the bed,
A damping device 13 made of polyurethane foam is interposed between the bed and the adjacent wall, and a similar device 14 is interposed between the bed and the adjacent wall.

[Brief explanation of drawings]

FIG. 1 is a front view showing a child's bed according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a sectional view taken along line 3--3 in FIG.

Claims (10)

[Claims] (1) A method for reducing noise and, in particular, the risk of crying from infants, in which a child's resting place, such as a bed or a pram,
A method characterized in that the child's resting place is subjected to mechanical vibrations in the frequency range of 0 to 2000 times and at the same time is supported by flexible vibration damping devices in all areas where the child's resting place is in contact with the surroundings. (2) Claim (1) wherein the vibration is generated by one or more imbalanced motors on another shaft or motor shaft connected to the motor shaft by mechanical means. The method described in. (3) A method for reducing noise from infants according to claim (1) or (2). (4) Devices for reducing noise and, in particular, the risk of crying from infants, comprising an unbalanced drive motor mounted by known techniques in a child's resting place, such as a bed or a pram. a device in which the motor or imbalance has a speed in the range of 800 to 2000 revolutions per minute, and in which a flexible vibration damping device is installed at a point in contact with the surroundings of the resting place. (5) The device according to claim (4), wherein the motor is electrically driven. (6) Claims in which the vibration is caused by one or more imbalances attached to another shaft mechanically connected to the motor shaft or to the motor shaft by a known technique. Apparatus according to paragraph (5). (7) The device according to any one of claims (4) to (6), wherein the starting of the motor is controlled by a known technique based on the noise level from the child when the child cries. . (8) Claims (4) to (7) further include an alarm that is activated by known techniques if the noise level from the child does not decrease below a predetermined level after a predetermined period of time.
). (9) The device according to claim (4), wherein the imbalanced motor further includes a mechanical device using spring tension. (10) A device for reducing noise from infants according to any one of claims (4) to (8).