KR20170004272A - Pad for shock absorption - Google Patents

Abstract

More particularly, the present invention relates to a shock absorbing article, and more particularly, to a shock absorbing article having a plurality of microballs containing a gel in an inner space, filling a gap between the plurality of microballs with gel, The present invention relates to an impact absorbing article capable of absorbing an external impact by a gel. To this end, the shock absorbing article according to the present invention comprises a plurality of first shock absorbing members containing a first fluid, a second shock absorbing member containing the plurality of first shock absorbing members, And a second fluid that fills the spaces between the first shock absorbing members inside the first shock absorbing members.

Description

Pad for shock absorption [0002]

More particularly, the present invention relates to a shock absorbing article, and more particularly, to a shock absorbing article having a plurality of microballs containing a gel in an inner space, filling a gap between the plurality of microballs with gel, The present invention relates to an impact absorbing article capable of absorbing an external impact by a gel.

In sports, things generally referred to as guards are mostly associated with shock absorption. Protectors are becoming a necessity, not an optional item, in sports genres that are accompanied by speed risks, such as skiing, snowboarding, motorcycles, mountain biking, and inline skating.

This means that the protector is not part of fashionable accessories, but rather has a basic idea of protecting his or her body from the risks associated with sports activities. In fact, people who have fallen on snowboards or mountain bikes without a protector and some of their bodies are broken or seriously injured, will immediately purchase the protector.

The most important aspect of the protector is the objective test result on shock absorption. In the European CE Impact Test, the protector to be tested is stored at a constant temperature for more than 24 hours, and then the impact equivalent to a kinetic energy of 50 J is applied to 9 points on the protector. The impact of 50J is the impact of motorcycle riding where extreme shock absorption is required, for example, when the rider and motorcycle overturn over 150km / h. The rest of the force other than the shock absorbed by the protector should be graphically displayed on the monitor by computerized data through Piezo. The remaining value should be less than 35KN and for the back protector should be less than 18KN.

As such, the impact test on the guard is fairly strict and not many companies have passed the shock test. Many companies have adopted a number of shock absorbing materials and structures in their guards to pass the standardized impact tests.

The conditions of the shock absorbing material include a material that converts the kinetic energy of the impacting object into an energy form that is not harmful to the human body, a material that prevents the total pressure of the impacting object from concentrating at one point of the body, It should be a material that can prevent the surface from reaching the body. Shock absorbing materials should have as many of these features as possible.

One of the widely used shock absorbing materials is foam. Foam is a porous elastomer prepared by mixing an elastomer such as rubber or polyurethane with air. It has the same structure as the sea surface, so it is lighter and more elastic than the bulky. The foam has a property of being deformed when external force is applied, and then returning to its original form when the force is removed.

The conventional foam-type shock absorbing material absorbs impact through deformation when an external impact is applied, but may not effectively prevent an external impact when it is so easily collapsed. If the deformation is weak, the foam itself may become an impact object. In addition, since foam is bulky, when the shock absorbing effect is to be enhanced, there is a problem that the protector becomes bulky and inconveniences the wearer.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an impact absorbing material capable of effectively absorbing an external impact while having a small volume.

Another object of the present invention is to provide an impact absorbing article capable of effectively absorbing an external impact in a novel manner, away from the basic concept of absorbing impacts by external deformation.

To this end, the shock absorbing article according to the present invention comprises a plurality of first shock absorbing members containing a first fluid, a second shock absorbing member containing the plurality of first shock absorbing members, And a second fluid that fills the spaces between the first shock absorbing members inside the first shock absorbing members.

According to the present invention, there is provided a shock absorber comprising: a plurality of first shock absorbing members each containing a first fluid; an inner space formed in the outer shock absorbing member; and a second shock absorbing member having a plurality of first shock absorbing members, And a second fluid that fills the space between the plurality of first shock absorbing members at an outer portion of the second shock absorbing member.

Here, the inner space may be filled with air, or a support member may be provided to support the outer portion when the inner space is filled with air.

As described above, according to the present invention, a plurality of microballs are provided in an inner space, and a plurality of microballs are filled with gel to effectively absorb an external impact by a gel filled between microballs and a gap between microballs when an impact is applied from the outside. can do. Here, impacts can be effectively dispersed and absorbed against external rotation acceleration or linear impact by collision between micro balls.

In addition, the impact absorbing article according to the present invention includes a plurality of microballs in an outer portion of the impact absorbing material, a plurality of microballs filled with gel, and an inner space filled with air or a support for supporting the outer portion, And secondarily absorbing the impact in addition to the gel, the external impact can be more effectively mitigated.

In addition, since the gel is filled in the inside of the microball, the impact dispersion effect is further increased at the time of collision between the microballs.

1 illustrates a microball according to an embodiment of the present invention.
2 shows a shock absorbing article according to a first embodiment of the present invention.
3 shows a shock absorbing article according to a second embodiment of the present invention.
4 shows a shock absorbing article according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the operation and effect thereof will be clearly understood through the following detailed description.

Before describing the present invention in detail, the same components are denoted by the same reference symbols as possible even if they are displayed on different drawings. In the case where it is judged that the gist of the present invention may be blurred to a known configuration, do.

1 shows a microball according to an embodiment of the present invention.

As shown in Fig. 1, the microball 1 includes a fluid substance 2 therein. The inside of the micro ball 1 is empty, and the inside of the micro ball 1 is filled with a gel 2, which is a fluid. The micro ball 1 is made of a material such as resin, glass, ceramics, or an elastic polymer material such as rubber or polyurethane, and preferably has a size of about 1 to 3 mm in diameter. In FIG. 1, the microballs 1 are spherical, but the present invention is not limited thereto, and other shapes such as a spheroid may be used.

2 shows a shock absorber according to a first embodiment of the present invention.

Referring to FIG. 2, the flexible body 3 includes a plurality of micro balls 1 therein. The flexible body 3 has a hollow interior and a plurality of microballs 1 are contained in the interior of the flexible body 3, and a gel 4, which is a fluid, is filled between the microballs 1.

The flexible body 3 is made of an elastic polymer material such as rubber or polyurethane, and the size of the flexible body 3 is preferably several centimeters in diameter. Although the flexible body 3 is spherical in FIG. 2, it is not limited thereto and other shapes such as a spheroidal body may be used.

3 shows a shock absorber according to a second embodiment of the present invention.

Referring to FIG. 3, the flexible body 3 has a rectangular shape with a curved line and has an inner space formed therein, and a plurality of micro balls 1 are disposed at an outer portion thereof. The flexible body 3 is provided with a space having a constant thickness along the outer surface and a plurality of microballs 1 are contained in the space and a gel 4 or the like is filled between the microballs 1.

Another space is provided at the portion excluding the outer portion of the flexible body 3, and this space forms an inner space. The inner space is filled with air 6, and a plurality of support members 5 for vertically supporting the outer portion are provided.

4 shows a shock absorber according to a third embodiment of the present invention.

Referring to FIG. 4, the flexible body 3 has a spherical or internal space similar to that of FIG. 2, and a plurality of micro-balls 1 are disposed on the outer periphery thereof. The flexible body 30 is provided with a space having a predetermined thickness along the outer surface and a plurality of microballs 1 are contained in the space and a gel 4 or the like is filled between the microballs 1. [ Unlike the second embodiment, only the air 6 is filled in the inner space of the shock absorbing product according to the third embodiment, and a supporting member for supporting the outer portion is not provided.

The shock absorbing article made of the flexible body 3 according to the present invention is inserted into a certain position in the helmet or various guards to absorb external impact when an external impact is applied.

The flexible body 3 and the fluid body 4 filling the internal space of the flexible body 3 primarily absorb the impact and then the elastic body constituting the flexible body 3 The two microballs 1 collide with each other and disperse the unabsorbed impact in the primary shock absorption process, thereby absorbing the secondary shock. Here, the secondary shock absorption process by the mutual collision of the microballs 1 can effectively disperse and absorb external rotation acceleration or linear impact.

In addition, when the internal space is provided in the flexible body 3, the external impact is minimized by absorbing the remaining impact which is not absorbed in the secondary shock absorption process by the support member 5 supporting the outer portion and the filled air 6 can do.

In addition, the microball 1 is filled with a gel or the like, which is a fluid, so that the shock absorbing effect can be further increased upon collision between the microballs 1.

As described above, the impact absorbing article made of the flexible body 3 according to the present invention is smaller in size and volume than the foams manufactured in the conventional sheet form, And the absorption effect on the external impact can be maximized through the multi-stage shock absorption process.

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention.

Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

1: microball 2, 4: gel
3: Flexible body 5: Support
6: Air

Claims (7)

A plurality of first shock absorbing members containing a first fluid,
A second shock absorbing member containing the plurality of first shock absorbing members,
And a second fluid that fills the space between the plurality of first shock absorbing members inside the second shock absorbing member. The method according to claim 1,
Wherein the first fluid and the second fluid are gel-type materials. The method according to claim 1,
Wherein the second shock absorbing member is made of a circular or oval elastic material. A plurality of first shock absorbing members containing a first fluid,
A second shock absorbing member having an inner space formed therein and containing the plurality of first shock absorbing members,
And a second fluid that fills between the plurality of first shock absorbing members at an outer portion of the second shock absorbing member. The method of claim 3,
Wherein the inner space is filled with air. The method of claim 3,
Wherein the inner space is provided with a supporting member for supporting the outer portion. The method of claim 3,
Wherein the first fluid and the second fluid are gel-type materials.

Images