KR20130062508A - Crutch - Google Patents

Abstract

PURPOSE: A heat generation crutch is provided to convert electric energy into heat energy by generating pressure delivered in walk and to supply power to a heat generation unit including a handle and the like. CONSTITUTION: A heat generation crutch comprises a support part (10) which has a predetermined height and is adhered closely to armpit of a user; leg parts (20) which are connected to the support part while having a predetermined height; a handle part (30) combined between the support part and leg parts; a piezo-electric element (40) which converts pressure into electric power by being built in the lower part of the leg parts; and a heating system which converts electric power which is delivered from the piezo-electric element into heat energy.

Description

Fever Crutches {Crutch}

The present invention relates to a crutch that assists a user walking with an uncomfortable leg, and more particularly, by charging and discharging electrical energy generated by an impact force applied to a piezoelectric element according to a change in the load of a human body to convert into thermal energy. Fever crutches to get a fever effect, such as the handle.

Crutches are a kind of cane that helps people with injured or unused legs or people with disabilities because they have lower limbs to walk on their armpits while walking to support their weight and move with the strength of their upper bodies. It is made of iron and is the most widely used pedestrian aid.

The conventional crutches are mostly body as shown in Figure 1, the shoulder rest 110 is in close contact with the armpits between the two forked split and the handle 130 that can be held by hand when lowered down the arm ( 120, and the body 120 is coupled to be used to adjust the height from the ground to the armpits according to the user's physique or height, and the rubber (150) and the like foot 140 so as not to slip on the end touching the ground It consists of).

Recently, it is possible to fold the legs with respect to the body to minimize the interference due to the volume of the appearance when getting on and off the vehicle, and the structure is convenient and easy to carry and store. Korean Utility Model Registration No. 20-0335363, No. 20-0275682 , Patent No. 10-1045526 and Patent No. 10-0520273 have been proposed.

In addition, the structure that minimizes the impact on the user's shoulders and arms by allowing the shoulder rest to be elastically elevated when going up an incline such as an uphill road or a stairway is registered Korean Utility Model Nos. 20-0287444 and 20-0268113. It has been proposed in the back.

However, such conventional crutches have been focused on the improvement in pursuing limited purposes such as reducing the volume of appearance and minimizing the occurrence of pain and pain during use when carrying and storing. That is, the crutches must be satisfied to wear thick and crude gloves to protect the hands from the cold when the temperature is low, such as winter, due to the structural characteristics used by the user holding the handle by hand.

This causes the unnaturalness of the behavior to feel uncomfortable to walk or cause a safety accident, as well as the cold weather effect can not be expected with only gloves, there is a problem to avoid going out in winter.

On the other hand, the piezoelectric element is a device that induces electric power by the change of pressure by using the phenomenon that the electrical polarization appears on the outer surface of the crystal when mechanical deformation is applied from the outside, by converting the kinetic energy generated during walking to thermal energy recently It protects your feet warm in winter, so you can get the effect of cold protection.

Accordingly, the present inventors focused on solving the above-mentioned matters and problems, and built a heating device capable of supplying power to the crutches. Was done.

Therefore, it is an object of the present invention to provide a crutch to heat the handle with its own power generated through the piezoelectric element.

Another object of the present invention is to provide a crutch that can be easily carried and stored.

In order to achieve the above object, an embodiment of the present invention, a support portion having a predetermined height and close to the user's armpits, a leg portion having a predetermined height and connected to the support portion, between the support portion and the leg portion; Coupled to the handle portion, and provided in the lower portion of the leg portion is provided with a crutch comprising a piezoelectric portion for converting the pressure into electrical energy and a heating unit for converting the electrical energy transferred from the piezoelectric portion into thermal energy.

As a result, the present invention can obtain a cold protection effect by generating heat generated in the handle with its own power source generated through the piezoelectric element of the piezoelectric unit.

Another embodiment of the present invention, by receiving the electrical energy from the charging unit for charging the electrical energy delivered from the piezoelectric unit may provide a crutch characterized in that the heat generating unit generates heat energy.

As a result, the present invention can obtain a cold protection effect by heating the heating unit built in the handle even when staying in one place without moving for a certain time.

In another embodiment of the present invention, by connecting the support portion and the leg rotatably, it is possible to easily fold when carrying and storage, etc. to reduce the appearance to improve the ease of use.

In another embodiment of the present invention, it is possible to provide a crutch characterized in that a rock is provided to prevent rotation of the supporting portion and the leg portion.

As a result, the present invention can adjust the coupling angle of the leg portion to the support according to the user's body shape or stride length, and can keep the adjustment angle firmly, so that the hill or the slope can be more safely and easily climbed.

The present invention having the above-described solution and configuration is a self-power generation to supply electric power to the heat generating parts such as the handle by converting the electrical energy generated by the pressure transmitted during walking without the need for a separate power source such as a battery By the heat generated in the manner, it is possible to protect the user's hands warm in winter, etc. to obtain a cold protection effect such as frostbite prevention.

In addition, the present invention can supply the electrical energy transmitted from the piezoelectric part to the power of the heat generating unit and at the same time can be charged in the charging unit, it is possible to more efficiently supply and manage the electrical energy generated from the piezoelectric unit, through which a user can Even if you stay in one place without moving for a while, the heating unit may generate heat by the electrical energy of the charging unit.

In addition, the present invention because the support and the leg is rotatably connected and can be easily folded, it is possible to reduce the appearance when carrying and storage, as well as by locking the coupling angle of the leg to the support according to the user's body shape or stride length Since the adjustment and the state can be maintained firmly, the ease of use can be greatly improved such that the hill or the slope can be safely and easily climbed.

1 is a cross-sectional configuration view showing an example of a crutch according to the prior art,
Figure 2 is a schematic view showing the expanded state of the crutches according to an embodiment of the present invention,
Figure 3 is a schematic cross-sectional view showing an unfolded state of the crutches according to an embodiment of the present invention,
Figure 4 is a schematic view showing a folded state of the crutches according to an 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 in the present invention, which specifies that the concept should be construed as a concept consistent with the technical spirit of the present invention and commonly used or commonly recognized in the art.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings are an exaggerated or simplified illustration of parts for convenience and clarity of explanation and understanding of the construction and operation of the technology, and each component does not exactly match the actual size.

In addition, the meaning of the term "... part" used in the present invention means a unit or module form that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. .

2 and 3 is a schematic view showing the unfolded state of the crutch according to an embodiment of the present invention and a cross-sectional configuration thereof, Figure 4 is a schematic view showing a folded state of the crutch according to an embodiment of the present invention to be.

As shown in Figure 2 to 4, the crutch according to an embodiment of the present invention as the support 10, the leg 20, the handle 30, the piezoelectric portion 40 and the heat generating portion 50 It is roughly divided and includes it.

Supporting portion 10 is a portion to be fitted to the user's armpit, has a predetermined height and the top is to be formed of a good elastic material and ergonomic streamline to improve the fit and cushioning feeling when using, and to stably support the shoulder portion of the user. Can be.

Leg portion 20 is a portion connected to the lower portion of the support portion 10, has a predetermined height and is connected to the support portion and the hinge joint can be easily folded arbitrarily by the user, the end portion touching the ground at the bottom of the friction force against the ground To prevent slipping in the use process to prevent slipping 21 may be mounted.

In addition, the connection portion of the support portion 10 and the leg portion 20 is provided with a lock 90 to prevent the other one is free to rotate relative to any one.

Here, the lock 90 is in close contact with the surfaces of the support portion 10 and the leg portion 20 close to each other through the tightening force generated when rotating in either direction, and the rotation is prevented by the friction force generated at this time The state can be maintained and can be made in a screw tightening manner in which the frictional force disappears while the tightening force is released when rotating in the opposite direction.

Therefore, it is possible to easily reduce the volume of the appearance when carrying and storage, etc. to improve the ease of use, by operating the lock 90, the leg portion 20 for the support portion 10 according to the user's body shape or stride length It can be more convenient when climbing hills, slopes, etc. can be adjusted because the combined angle of.

Handle portion 30 is a portion that is coupled between the support portion and the leg portion, the user is formed in a position that can be comfortably held by the hand when the arm is lowered down while the support portion 10 is inserted into the armpit.

In addition, a plurality of finger grooves 31 may be formed on the outer circumferential surface of the handle part 30 to improve the convenience and grip of the grip.

Here, the supporting portion 10, the leg portion 20 and the handle portion 30 is formed of a hollow tubular body, etc., the inside of the piezoelectric portion 40, the heat generating portion 50 and the charging portion 60 built-in It can be implemented in the form.

The piezoelectric part 40 converts pressure into electrical energy, and harvests energy from an impact force applied to a conventional piezoelectric element and converts the energy into electrical energy, and is embedded in the lower part of the leg 20.

That is, the piezoelectric part 40 collides a plurality of different piezoelectric elements by the pressure generated each time the leg 20 contacts the ground when the user walks, thereby generating electrical energy by the piezoelectric effect.

Here, the piezoelectric element of the piezoelectric part 40 may be implemented by stacking a plurality of layers, and rectifying and boosting a certain amount of electric energy generated from the piezoelectric element so as to allow the power of the reference voltage to be transferred to the heating unit. Of course, the boosting device may be provided.

The heating unit 50 is a part for converting the electrical energy transmitted from the piezoelectric unit 40 into thermal energy, and is mounted in the form of a heating element in the handle part 30 or the supporting part 10 to form the piezoelectric part 40 or the like. By receiving electrical energy from the charging unit 60 and generating heat, a portion of the handle part 30 or the supporting part 10 which is in contact with the body may be maintained at a predetermined temperature.

The heating unit 50 may be a ceramic heating element that generates heat by the electrical resistance when the electrical energy is applied, and does not cause a burn even if touched because it is not heated above a certain temperature.

The charging unit 60 is a portion for charging the electrical energy transmitted from the piezoelectric part 40, and is installed inside the support part 10 or the handle part 30 to store electrical energy delivered from the piezoelectric part 40. To supply power to the heat generating unit.

Here, the charging unit 60 includes a first battery 61 and a second battery 62 in which charging and discharging are selectively performed according to separate switch operations, which are electrically connected to each other.

That is, when the charging unit 60 is charged, the heating unit 50 cannot generate heat, and in the discharge process of generating heat to the heating unit 50 through the charging unit 60, electrical energy is supplied to the charging unit 60. Can't charge As a result, when there is only one charging unit 60, the electric energy transmitted from the piezoelectric unit 40 may not be efficiently charged or discharged, and charging and discharging may not be performed at the same time.

Therefore, the present invention includes a first battery 61 and a second battery 62 to selectively charge and discharge the charging unit 60 to maximize the efficiency of the electrical energy.

In addition, the heating element of the heating unit 50 may be electrically connected to the first battery 61 and the second battery 62 through a switch to selectively perform charging and discharging, respectively.

In addition, the first battery 61 and the second battery 62 may be provided with a power display unit (not shown) for displaying the charging or discharging state. For example, the power display unit may be implemented as a light emitting diode, and thus the current state of each of the first and second batteries 61/62 may be easily confirmed.

The charging energy transmitting unit 70 and the heating energy transmitting unit 80 are parts for smoothly transferring the electrical energy generated from the piezoelectric unit 40 to the heating unit 50 located at a predetermined distance. Or wires for electrical connection with wires and the like.

On the other hand, the present invention is included in at least one embodiment described above, and is not limited by one embodiment and the accompanying drawings, various modifications and applications that are not illustrated within the scope without departing from the spirit of the invention It is apparent to those skilled in the art that the present invention can be changed as well as substitution of components and equivalent other embodiments. Therefore, contents related to the modification and application of the features of the present invention should be construed as being included within the scope of the present invention.

10: support 20: leg
21: slipper 30: handle portion
40: piezoelectric portion 50: heat generating portion
60: charging unit 61: first battery
62: second battery 70: charging energy transmission unit
80: heating energy transfer unit 90: lock

Claims (10)

Support portion having a predetermined height and close to the user's armpits;
A leg portion connected to the support portion and having a predetermined height;
A handle portion coupled between the support portion and the leg portion;
A piezoelectric part embedded in the lower part of the leg to convert pressure into electrical energy;
A heating unit converting the electrical energy transferred from the piezoelectric unit into thermal energy;
Crutches including.
The method of claim 1,
Crutches further comprising a charging unit for charging the electrical energy delivered from the piezoelectric unit.
The method of claim 2,
The heating unit receives the electric energy from the charging unit to generate heat energy.
The method according to claim 2 or 3,
Crutches further comprising a charging energy transfer unit for transmitting the electrical energy transferred from the piezoelectric unit between the heating unit and the charging unit to the charging unit.
The method of claim 2,
The charging unit is a crutch formed of a first battery and a second battery in which charging and discharging are respectively selected according to a switch operation.
4. The method according to any one of claims 1 to 3,
The heating unit is a crutch built in the support portion or the handle portion.
The method according to claim 6,
Crutches further comprising an exothermic energy transfer unit for transmitting the electrical energy transferred from the piezoelectric unit between the piezoelectric unit and the heat generating unit to the support portion or the handle portion.
The method according to claim 1 or 2,
Crutches rotatably connected to the support and the leg.
9. The method of claim 8,
Crutches provided with a rock (rock) to prevent the rotation of the supporting portion and the leg.
The method of claim 1,
Crutches are provided with a non-slip end on the end of the leg portion touching the ground.

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