KR101512662B1 - Life jacket - Google Patents

Abstract

The present invention relates to a life jacket that can send out flickering signals and radio frequency signals with electric power generated from the waves when a wearer is lost at sea. The life jacket of the present invention comprises a distress signal generation unit for displaying and sending a distress signal, a piezoelectric module that can generate electric energy through mechanical pressure and supplies power to the distress signal generation unit, and a float whose upper part is connected to the front of the life jacket with pins, and which creates bending deformation by repeatedly applying pressure to the piezoelectric module while rotating through vibration and fluctuation around the pin when being floated on water by buoyancy.

Description

Lifejack {LIFE JACKET}

The present invention relates to a lifejacket used for rescue in the event of a marine distress accident such as a ship or an aircraft. More particularly, the present invention relates to a lifejacket Display and wireless radio signals, and also to maximize safety by allowing the victim to balance in the water and float in a stable posture.

A lifejacket is designed to prevent the occurrence of safety accidents such as drowning when enjoying leisure activities such as water sports such as river or lake, watering or fishing, windsurfing, rafting, etc., Is one of the water safety products.

These lifejackets have the basic function of lifting the head part to the surface of the water by buoyancy when the wearer falls into the water, as well as an additional function of preventing the body temperature from dropping and buffering the shock from the outside.

In general, the major cause of death of a victim in the event of a marine accident such as a ship or an aircraft is largely divided into heart shock due to drowning and temperature drop. In particular, if the structure of the victim is delayed, the death rate due to burnout or hypothermia is rapidly increasing, so rapid structure is needed.

However, when a marine accident occurs in a place such as the sea, and the victim drifts or disappears by waves, it must be searched over a wide area, so it is difficult to find quickly, and the nighttime In the dark or bad weather, the search and rescue activities as well as the location and tracking of the victims is very difficult to delay the structure.

Accordingly, there is an illumination and signal generating device for informing that the position of the victim can be easily found by generating a flash or continuously sending a distress signal by radio or transmitting a GPS position signal in the event of a distress accident There have been various proposed lifejackets.

For example, a 'life jacket with a lamp and a battery' disclosed in Korean Utility Model Publication No. 20-2009-0012830 is equipped with a lamp and a distress signal generator so that when a distress accident occurs, The lamp is turned on by a power source supplied from a battery (battery), or a signal is transmitted from a distress signal generator.

However, according to the conventional technology, when the victim is unconscious in the state of being in the water, the lifejacket does not operate because the switch can not be operated directly, and when the darkness is turned on, Therefore, there is a problem that the battery (battery) is consumed so much that it is troublesome and inconvenient to replace the battery from time to time, and the battery can not be used when the battery is discharged.

As another example, a structure using a solar cell as a power source has been disclosed, but it is limited in that it can not be used at night because it is inevitably affected by the weather due to the nature of using sunlight.

On the other hand, in the case of maritime distress, the survivor maintains his / her body temperature until the rescue, and takes a posture in which the face (forehead and face area) It is safer.

For example, if water is infiltrated into the lifejacket and the balance is lost due to loss of some buoyancy, or because the victim can not move freely due to loss of mind or injuries, It is important to maintain balance and level in posture.

Therefore, there is an urgent need to develop a lifejacket that allows the wearer (survivor) to maintain a stable posture while being capable of providing stable power supply as well as tracking and grasping the position of the victim.

Korean Utility Model Registration No. 20-0399149 (Oct. 19, 2005) Korean Utility Model Registration No. 20-0432410 (December 1, 2006) Korean Utility Model Publication No. 20-2009-0012830 (December 16, 2009) Korean Registered Utility Model No. 20-0463315 (October 29, 2012) Korean Patent Laid-Open Publication No. 10-2014-0001001 (Apr. 2014, 2014) Korean Registered Patent No. 10-1389452 (Apr. 201, 2013) Korean Patent Registration No. 10-1264911 (2013.05.15) Korean Registered Patent No. 10-0850470 (2008.08.07) Korean Registered Patent No. 10-1020712 (Mar. 2011)

Accordingly, the present inventor considers the above-mentioned matters in a comprehensive manner and concentrates on solving the limitations and problems of existing life insurance agreements, so that when the wearer falls into the water, We do our best to develop a lifejacket that can display a signal (flashing light) and transmit a radio wave signal, and can also keep the wearer (the victim) in balance and maintain a stable horizontal posture. As a result, the present invention was invented.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a lifesaving device capable of generating electric energy by a vibration force generated by a wave force and stably supplying the generated energy to a distress signal generating device.

Another technical solution and object of the present invention is to provide a lifejacket that allows a wearer (a victim) to center in water and maintain a balanced posture stably.

According to an aspect of the present invention, there is provided a distress signal generator for generating and outputting a disturbance signal, And the upper end of the lifespan is connected to the front portion of the life-saving motion by a pin connection. When the lifespan of the lifespan is caused by the buoyancy, the vibration of the life- And a float which is rotated in accordance with the rising and falling, and which repeatedly applies pressure to the piezoelectric module to cause bending deformation.

Thus, according to the present invention, when a wearer falls into the water, the electric power is generated while moving according to the vibration power generated by the wave power or the rising and falling of the water level, and the electric energy can be supplied and used as the operating power of the distress signal generator.

According to a first preferred embodiment of the present invention, at least one cam-like protrusion is formed around the pin at a predetermined interval around the outer surface of the float facing the piezoelectric module, Can be effectively produced.

Further, in a first preferred embodiment of the present invention, the distress signal generator includes a GPS module for transmitting and receiving a GPS position signal, an RFID tag for wirelessly transmitting a position signal, and an LED module for emitting or blinking light upon power supply Or at least one of them.

According to a first preferred embodiment of the present invention, the piezoelectric module includes: a piezoelectric element that generates electrical energy by mechanical deformation; and a piezoelectric element that is electrically connected to the output terminal of the piezoelectric element and generates electrical energy A rectifying circuit for converting the current into rectification and direct current, and a capacitor for storing the rectified current through the rectifying circuit.

According to a second aspect of the present invention, in the above-described first embodiment, at least one pressure roller is rotatable around an outer surface of the float facing the piezoelectric module, And a plurality of pressing protrusions are formed around the outer surface of the pressing roller at regular intervals, thereby making it possible to more effectively and efficiently generate the bending deformation of the piezoelectric module.

According to a third aspect of the present invention, in the above-described first embodiment, the elastic band is formed such that one end thereof is engaged with the lower end of the rear face of the life-saving motion, The balance member is fixed to the end portion and has a buoyancy force to hold the wearer in a balanced state and a horizontal state in the water, so that the wearer (the destructor) can center in the water and maintain a balanced posture more stably.

According to a fourth aspect of the present invention, in the above-described third embodiment, the balance member is an air tube formed so as to be capable of being rolled or curled, and a gas supply device for forcibly injecting and expanding gas into the air tube So that the wearer (the victim) can maintain a safe and balanced posture in water more quickly and stably.

The present invention having the means and configuration for solving the technical problems as described above is characterized in that, when a wearer falls into the water, the float and the piezoelectric module move according to a fluctuation or a fluctuation of a vibration level or a water level caused by a wave such as a wave Electric energy is generated and supplied to the power supply of the distress signal generator. Therefore, unlike the prior art, a separate built-in battery or switch operation for supplying power to the distress signal generator is unnecessary, thereby improving energy efficiency. ) Can be operated automatically by the wave power even if it is lost or wounded, it is possible to operate the device for generating the distress signal greatly, thus it is possible to improve the convenience of use and to generate electricity at any time regardless of the weather or day or night, Can be supplied steadily and continuously.

In addition, according to the present invention, the buoyancy of the balance member can center the wearer (the victim) in the water and float in a balanced and stable posture, thereby greatly improving safety in the event of a distress accident.

1 is a front view schematically showing a lifejacket according to a first embodiment of the present invention.
2 is a side view schematically showing a lifejacket according to a first embodiment of the present invention.
3 is a block diagram schematically showing a distress signal generator and a piezoelectric module constituting a life mission according to a first embodiment of the present invention.
4 is an enlarged cross-sectional view schematically showing a local portion of a float constituting a lifejacket according to the first embodiment of the present invention.
5 is an enlarged cross-sectional view schematically showing a local portion of a float constituting a lifejacket according to a second embodiment of the present invention.
6 is a side view schematically showing a lifejacket according to a third embodiment of the present invention.
7 is a block diagram schematically showing a balance member constituting a life-saving motion according to a fourth embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions of the present invention, and they are to be construed to mean concepts that are consistent with the technical idea of the present invention and interpretations that are commonly or commonly understood in the technical field of the present invention.

In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

Hereinafter, the attached drawings are exaggerated or simplified in order to facilitate understanding and clarification of the structure and operation of the technology, and it is to be understood that each component does not exactly coincide with the actual size.

It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. , 'Minor' means a unit or module that processes at least one function or operation, and may be implemented by hardware, software, or a combination of hardware and software.

≪ Embodiment 1 >

1 to 4, a lifejacket 1 according to a first embodiment of the present invention mainly includes a distress signal generator 10, a piezoelectric module 20, and a float 30 .

Such a lifejacket 1 basically has a buoyancy and a length and a volume which can support the weight of the wearer (the victim) in the water and can float safely on the water. The lifejacket 1 is shaped like a jug so that it can be easily worn on the user's upper body. A conventional fastening band, a buckle, a slide fastener, or the like can be provided so as to stably maintain the fastening state and the wearing state with respect to the upper body.

A structure in which air is injected into a tube embedded between the inner and outer shells, or a buoyancy material such as a foamed resin is embedded between the inner and outer shells.

In addition, a waterproof heating sheet 60 for preventing the body temperature of the wearer (the victim) from being lowered may be built in the front or rear face of the lifejacket 1. In this case, the heat generating sheet 60 can receive power from the piezoelectric module 20 and generate heat at a constant temperature. The piezoelectric module 20 rectifies and boosts a predetermined amount of electric energy, A conventional rectifying or boosting device may be provided.

The distress signal generating apparatus 10 is for displaying and sending a distress signal when the wearer falls into the water, and is attached or built in the front face of the life motionsurve 1 in a watertight state and a watertight state, .

The distress signal generator 10 includes a GPS module 11 for transmitting and receiving position information and signals using GPS, an RFID tag 12 for transmitting position information and signals wirelessly, The LED module 13 may be provided as an apparatus for generating an ultrasonic signal that is easy to detect in water.

The piezoelectric module 20 generates electrical energy when deformed by mechanical pressure to supply power to the distress signal generator 10 and is attached or embedded in the front face of the life vest 1.

That is, the piezoelectric module 20 directly receives the pressure due to the motion from the float 30, and generates electric energy by the piezoelectric effect. For example, impingement and pressure on different piezoelectric crystals generate an AC voltage on two faces that the crystal faces.

Here, the attachment position of the piezoelectric module 20 is not particularly limited such as a back plate portion other than the front face portion of the lifejacket 1, but the face portion (forehead and face portion) of the wearer (the victim) It is most preferable to attach the float 30 at a position where the float 30 can naturally rise above the water surface when taking a lying posture obliquely backward in the water.

The piezoelectric module 20 includes a piezoelectric element 21 that generates electrical energy by mechanical deformation, that is, a piezoelectric element 21 that generates AC electricity while alternately repeating compression and tensile deformation when the float 30 moves or vibrates, And a rectifying circuit 22 electrically connected to the output terminal of the element 21 and converting the alternating current of the electric energy generated by the piezoelectric element 21 into rectification and direct current.

As the piezoelectric element 21, for example, barium titanate nanoparticles and a polymer material are repeatedly stacked so that a piezoelectric material layer is inserted between the upper and lower electrodes in the form of a thin multilayer thin film, and an external force for mechanical deformation is removed It is preferable to adopt a so-called piezoelectric film having properties of being restored to original state by elasticity, but it can also be formed of a material including a PZT system, a non-ferrous ceramic or a piezoelectric polymer, and the rectifier circuit 22 can be formed of a bridge diode Can be adopted.

The piezoelectric module 20 may further include a capacitor 23 for storing a current rectified through the rectifying circuit 22. [

That is, the capacitor 23 may store the surplus DC voltage transmitted from the rectifying circuit 22 and use it as an auxiliary. For example, when the power of the power stored in the capacitor 23 at the time of disturbance, such as when no electric wave is generated due to a constant water surface or when the electric power is not generated in the piezoelectric module 20 due to the small intensity of the wave, Operational power can be used to continuously display and send the distress signal without interruption.

The float 30 generates a compressive force and a tensile force by applying mechanical pressure to the piezoelectric module 20 when the float 30 floats on the surface of the water by buoyancy to induce and act to generate AC electricity in the piezoelectric module 20 And has a buoyancy and a predetermined length, and its upper end in the longitudinal direction is connected to the front portion of the lifejacket 1 by a pin connection. With the pin 31 as the center, And repeatedly apply pressure to the piezoelectric module 20 to cause bending deformation.

A pin hole 39 is formed in an upper end portion of the float 30 in the longitudinal direction and a hole is formed in the front surface of the liferaft 1 through a hole penetrating the pin hole 39 of the float 30 in a straight line. 31 are fixed to a pin support 35 which can be fastened.

At least one or more cam protrusions 32 are formed at regular intervals around the outer surface of the float 30 facing the piezoelectric module 20 with the pin 31 as the center.

That is, the cam-like protrusion 32 is protrudingly formed on the rotation locus of the float 30 with the pin 31 as the center, and the float 30 is floated above the water surface by buoyancy, The piezoelectric module 20 is brought into contact with the front portion of the piezoelectric module 20 adjacent to the piezoelectric module 20 in a pivotal motion so that the piezoelectric module 20 can be bent more effectively.

Here, the mounting position of the float 30 is not particularly limited such as a back plate portion other than the front face portion of the life vest 1, as in the case of the piezoelectric module 20, but the face portion of the wearer (the victim) It is most preferable to adhere such that the pin 31 is positioned at the same level as the water surface or slightly higher than the water level.

As described above, according to the first embodiment of the present invention, the lifting motions (1) operate the piezoelectric module (20) by using the force of the float (30) By using the electric energy generated through the piezoelectric module 20 as the power source of the distress signal generator 10, the distress signal can be continuously and stably displayed or transmitted without being influenced by the weather or the usage time unlike the prior art.

In addition, even if the wearer (the victim) is mental or injured, the power generated by the wave power can be automatically supplied to the distress signal generating device and operated, thereby greatly increasing the probability of the survivor's rescue.

It should be noted that the power generation efficiency can be increased by connecting the piezoelectric module 20 and the float 30, which are operated in pairs, to the single rectifier circuit 22 by mounting the lifter motors 1 on a plurality of lifting motors 1 to be.

The strain of the piezoelectric module 20 in which the degree of deformation is increased in proportion to the number and size of movements of the float 30 and the strain of the piezoelectric module 20 in which a plurality of floats 30 are mounted and provided for one piezoelectric module 20, Thereby improving power generation efficiency.

≪ Embodiment 2 >

As shown in FIG. 5, the lifting mover according to the second embodiment of the present invention has a pin hole 39 formed at an upper end portion of the float 30 in the longitudinal direction thereof, like the first embodiment, A pin support 35 is fixed to the front portion of the float 30 so that the pin 31 can be inserted and fastened through a hole pierced in a straight line with the pin hole 39 of the float 30.

At least one pressing roller 33 is freely rotatably mounted on the float 30 and a plurality of pressing protrusions 34 are formed around the outer surface of the pressing roller 33 at regular intervals.

That is, the pressure roller 33 is partially inserted into the roller mounting groove 36 formed at a predetermined interval around the outer surface of the float 30 facing the piezoelectric module 20 with the pin 31 as the center, And are fitted to the float 30 and the pin by the roller pin 37, respectively.

Therefore, when the float 30 floats above the water surface by the buoyancy force, the pressure roller 33 is moved in the vertical direction by the vibration of the wave or by the rise and fall of the water level, The bending deformation of the piezoelectric module 20 can be more efficiently and efficiently caused by the contact of the pressing protrusion 34 and the pressing protrusion 34 at the same time as the bending deformation of the piezoelectric module 20 is primarily contacted.

Meanwhile, among constituent elements of the life-saving motive according to the second embodiment of the present invention, constituent elements having the same or similar operational effects as those of the first embodiment described above use the same reference numerals, and repetitive and detailed explanations thereof It is omitted.

≪ Third Embodiment >

As shown in FIG. 6, according to the third embodiment of the present invention, the life-saving motion of the elastic band 40 has a predetermined width and a predetermined length at the lower end of its rear face, And a balance member 50 having buoyancy is fixed to the other end portion in the longitudinal direction of the elastic band 40 so as to maintain a balanced posture with respect to the center of the wearer in water.

That is, the elastic band 40 may be made of a material such as a rubber, a plate spring, or a shape memory alloy having elasticity or tension so as to spread naturally, and the elastic band 40 may be rolled up like a scroll And in this state, it can be bundled and fixed using a separate elastic band 60.

The elastic band 60 may be made of cloth, woven fabric, nylon, spandex fiber or the like having elasticity and stretchability. However, even if the wearer (the victim) wears out of the water, the elastic band 40 may move freely But it is not limited thereto as long as it has elasticity and stretchability to prevent unwinding or drying of the skin easily and does not cause side effects to the skin.

In the liferaft 1 according to the third embodiment of the present invention, when the wearer falls into the water, the elastic band 40 is wound around the balance member 50 to loosen the state of being bundled by the elastic band 60 The buoyant force of the free end of the balance member 50 to float above the water surface is caused by the buoyant force of the balance member 50. This causes the wearer (the victim) Is passed through the crotch, the buoyant action of the balance member 50 is performed, so that the center of gravity and balance can be more easily and stably balanced in the water, the horizontal posture can be maintained, and auxiliary buoyancy can be obtained, .

On the other hand, among constituent elements of the life-saving motion according to the third embodiment of the present invention, constituent elements having the same or similar operational effects as those of the first and second embodiments described above use the same reference numerals, A detailed description thereof will be omitted.

<Fourth Embodiment>

As shown in FIG. 7, the life-saving cradle according to the fourth embodiment of the present invention includes an air tube 51 formed to allow the balance member 50 to be rolled or rolled so as to be bulky, And a gas supply device 52 for forced infusion and expansion.

That is, the gas supply device 52 is operated by a user (a victim) pulling wire in water or the like to instantaneously inject gas such as liquid nitrogen into the air tube 51, and the air tube 51 is inflated accordingly, The buoyancy can be obtained.

Therefore, when the wearer (the victim) falls into the water, not only buoyancy can be obtained more quickly and easily, but also the wearer (the victim) can maintain a more stable and comfortable posture so as to minimize power consumption, It is possible to improve usability as well as safety.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments or constructions. Various changes and substitutions may be made without departing from the spirit and scope of the invention. It will be obvious to those skilled in the art that the present invention can be widely applied to other embodiments.

Therefore, it is to be understood that modifications and variations of the features of the present invention are intended to be included within the spirit and scope of the present invention.

10: Distress signal generator 11: GPS module
12: RFID tag 13: LED module
20: Piezoelectric module 21: Piezoelectric element
22: rectifier circuit 23: capacitor
30: float 31: pin
32: cam-shaped projection 33: pressure roller
34: pressing projection 35: pin support
36: roller mounting groove 40: elastic band
50: balance member 51: air tube
52: gas supply device 1: lifejacket

Claims (9)

Claims [1] A life-insurance conser- vation comprising a distress signal generating device for displaying and sending a distress signal, and a piezoelectric module for generating electrical energy when deformed by mechanical pressure to supply power to the distress signal generator,
The upper end portion is connected to the front portion of the liferaft by a pin joint, and when it floats above the water surface by the buoyancy force, the upper portion is pivoted about the pin with the vibration due to the wave or the rising or falling of the water level, And includes a float causing deformation,
Wherein at least one pressure roller is rotatably mounted around an outer surface of the float opposite to the piezoelectric module with respect to the pin, the pressure roller being rotatable about the outer surface of the pressure roller, Lifejacket. The method according to claim 1,
At least one cam protrusion is formed at a predetermined interval around the outer surface of the float facing the piezoelectric module with the pin as a center. delete 3. The method according to claim 1 or 2,
Wherein the distress signal generator comprises at least one of a GPS module for transmitting and receiving a GPS position signal, an RFID tag for transmitting a position signal wirelessly, and an LED module for emitting light or flashing light when power is supplied. The method according to claim 1,
The piezoelectric module includes: a piezoelectric element that generates electrical energy by mechanical deformation; And
A rectifying circuit electrically connected to an output terminal of the piezoelectric element to convert a current of electric energy generated by the piezoelectric element into rectification and direct current;
A lifejacket agreement containing. 6. The method of claim 5,
The piezoelectric module includes: a capacitor for storing a current rectified through the rectifying circuit;
Further comprising a lifejacket. The method according to claim 1,
An elastic band formed at one end thereof to be connected to the lower end of the rear surface of the liferaft, and capable of being rolled up or rolled down to allow volume reduction; And
A balance member fixed to the other end of the elastic band and having buoyancy to balance the wearer in water;
Further comprising a lifejacket. 8. The method of claim 7,
Wherein the balance member comprises:
An air tube formed so as to be able to reduce its volume by winding or curling; And
A gas supply device for forcibly injecting and expanding gas into the air tube;
A lifejacket agreement containing. The method according to claim 1,
Wherein the lifesaver includes a waterproof heating sheet and the piezoelectric module supplies power to the heating sheet.

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