WO2013005512A1 - Shock-absorbing structure and human body protector - Google Patents

Abstract

The purpose of the present invention is to provide a shock-absorbing structure and a human body protector which achieve all of high-level shock absorbency, flexibility, air permeability, lightweight property, and environmental temperature maintenance property. A shock-absorbing structure is provided with: a plurality of elastic spherical objects (4) each of which has the external shape of a spherical object and is elastically deformed according to the magnitude and direction of external force applied from the outside; and a loose coupling structure (5) which is provided between the elastic spherical objects (4) configured by gathering the plurality of elastic spherical objects (4) in a plane or in a line to secure a plurality of through gaps by facing spherical surfaces apart from each other of the plurality of elastic spherical objects (4), and performs coupling while providing low rigidity such that the structure shape can be deformed according to structure deforming force applied from the outside.

Description

Shock absorbing structure and personal protective equipment

The present invention relates to a shock absorbing structure and a human body protector.

2. Description of the Related Art Conventionally, a human body protector is known, and a device that prevents the occurrence of stuffiness when worn is known (for example, see Patent Document 1).

This human body protector protects the human body from impact by storing a shock absorber in a gun belt-like belt pocket. The buffer body includes a porous body having deformation restoring properties, a bag body that encloses the porous body in an airtight manner, an intake means that sucks gas into the buffer body, and an exhaust that discharges gas to the outside of the buffer body. Means.

On the other hand, polystyrene foam is conventionally known as a cushioning material for helmets, and is processed and formed to form a uniform hemisphere along the curved surface of the back surface of the helmet, and is provided on the back surface of the helmet.

Japanese Patent Laid-Open No. 2007-119956

In the porous body which exhibits the buffer function of the human body protector of the conventional patent document 1, it is excellent in flexibility and light weight, but since it is used by being worn on the human body, it is a material especially worn in summer The rise in temperature causes a decrease in shock absorption and stuffiness at the time of wearing.

Since this porous body has low air permeability, there are many inconveniences such as low environmental temperature maintenance (temperature tends to be high) and low shock absorption to relatively sharp objects. .

On the other hand, foamed polystyrene used as a cushioning material for general helmets has high impact absorption and light weight, but lacks breathability, environmental temperature maintenance performance and flexibility, lowers user comfort, and consequently helmets. It leads to dislike.

In addition, other commonly known cushioning materials also have the advantages and disadvantages described above, and satisfy all performances of shock absorption, flexibility, breathability, light weight, and environmental temperature maintenance at a high level. It's hard to say.

Therefore, the present invention has been made paying attention to the above-mentioned problems, and the shock absorbing structure and the human body protection satisfying all of the shock absorbing property, flexibility, breathability, light weight, and environmental temperature maintainability at a high level. The purpose is to provide ingredients.

In order to achieve the above object, in the shock absorbing structure of the present invention, the external shape is spherical, and a plurality of elastic spherical bodies that elastically deform according to the magnitude and direction of external force applied from the outside,
A structure that is provided between the elastic spheres in which the plurality of elastic spheres are assembled in a planar shape or a linear shape, and that secures a plurality of through gaps by opposing spherical surfaces that are separated from the plurality of elastic spheres, and is applied from the outside A soft-coupled structure that is coupled with low rigidity so that the shape of the structure can be deformed according to body deformation force;
It is characterized by providing.

According to the shock absorbing structure of the present invention, since the elastic sphere is spherical, it exhibits shock absorbing performance from all directions. Further, high air permeability and light weight can be obtained by the through gap formed between the elastic spherical bodies. Furthermore, since the elastic spheres are “soft-bonded”, high flexibility can be obtained that deforms following the shape of the portion provided with this structure. In addition, since the air permeability is high, problems such as “steaming” and “heat accumulation” due to the low air permeability do not occur, and the environmental temperature around the elastic spherical body suitably exhibits the above-mentioned shock absorption. It is difficult to deviate from the ambient temperature.

That is, the shock absorbing structure of the present invention can satisfy all of shock absorption, flexibility, breathability, light weight, and environmental temperature maintainability at a high level.

It is an external view which shows the protective hat which has the impact-absorbing structure of Example 1. It is a figure which shows the cross section (schematic diagram) of the protective cap of Example 1, and demonstrates an effect | action when receiving an impact. It is a top view of the shock absorption structure provided in the inside of the side part of the protective hat of FIG. It is a fragmentary sectional view of the shock absorption structure provided in the inside of the side part of the protective hat of FIG. FIG. 3 is a perspective view of an impact absorbing structure provided inside a side portion of the protective hat of FIG. 2. It is a top view which shows the impact-absorbing structure provided in the inside of the top part of the protective cap shown in FIG. 1 and FIG. It is a side view of the impact-absorbing structure provided in the inside of the top part of the protective cap shown in FIG. 1 and FIG. It is effect | action explanatory drawing which shows the state which the impact-absorbing structure of Example 1 deform | transformed by the soft bond. It is a figure which shows the specific structure of the elastic spherical body which is a structural unit of the impact-absorbing structure of Example 1, and demonstrates the air permeability by the ventilation hole of an elastic spherical body. It is a figure which shows the state which the elastic spherical body which is a structural unit of the impact-absorbing structure of Example 1 absorbed the impact, and was elastically deformed. It is a top view of the impact-absorbing structure of Example 2. It is a side view of the impact-absorbing structure of Example 2. 6 is a plan view showing an impact absorbing structure of Example 3. FIG. It is a side view of the impact-absorbing structure of Example 3. 6 is a plan view showing an impact absorbing structure of Example 4. FIG. It is a side view of the impact-absorbing structure of Example 4. It is a performance-evaluation figure which shows the impact-absorbing property by the impact-absorbing structure which concerns on Example 1 of this invention, a softness | flexibility, air permeability, lightweight property, and environmental temperature maintenance property. It is a performance-evaluation figure which shows the impact-absorbing property, a softness | flexibility, air permeability, lightweight property, and environmental temperature maintenance property by the foam material which compares performance with the impact-absorbing structure which concerns on Example 1 of this invention. It is a performance-evaluation figure which shows the impact-absorbing property, a softness | flexibility, air permeability, lightweight property, and environmental temperature maintenance property by the polystyrene foam compared with the impact-absorbing structure which concerns on Example 1 of this invention.

Hereinafter, modes for realizing the shock absorbing structure and the human body protector according to the present invention will be described based on Examples 1 to 4 with reference to the drawings.

First, the configuration will be described.

FIG. 1 and FIG. 2 show a protective cap 1 as a human body protector according to Embodiment 1 of the present invention. FIG. 2 shows a cross-sectional view of the protective cap 1 of FIG.

The protective hat 1 is made of a cloth material having good air permeability, a hat main body 1B as a body protecting body, and a sheet-like impact as an impact absorbing sheet provided inside the side and zenith of the hat main body 1B. Absorbing structures 2 and 3 are provided.

The shock absorbing structure 2 is formed to have a vertical width substantially the same as the height of the side portion of the cap body 1B, and is provided so as to cover the side portion of the hat body 1B. Therefore, the shock absorbing structure 2 is also provided inside the side portion of the cap body 1B (not shown) shown in FIG.

On the other hand, the shape and size (diameter, etc.) of the disk shape of the shock absorbing structure 3 provided inside the zenith portion of the hat body 1B are set to be substantially the same as the shape and size of the zenith portion of the hat body 1B. They are formed so as to coincide with each other.

As shown in FIG. 2, the hat main body 1B has a partially double structure, and this part serves as a seat pocket that functions as a storage part for the shock absorbing structure. The seat pocket is formed so as to exhibit a shape obtained by dividing the curved surface shape of the human body H into a plurality of parts.

Further, the double-structure portion of the cap body 1B is provided with an insertion opening 1A for storage, and the shock absorbing structures 2 and 3 can be taken in and out of the seat pocket through the insertion opening 1A.
<Shock absorbing structure on the side of the hat>
3A to 3C show the shock absorbing structure 2 provided inside the side portion of the cap body 1B.

As shown in FIGS. 3A to 3C, the shock absorbing structure 2 has a plurality of elastic spherical bodies 4 arranged in a plane and a plurality of elastic spherical bodies 4 penetrating the elastic spherical bodies 4 vertically. And a synthetic resin yarn 5 bonded to each other in the lateral direction. The vertical and horizontal directions are the front, depth, and left and right directions in FIG. 3B.

As shown in FIG. 3A, by gathering the elastic spherical bodies 4 in a planar shape, a gap 4a is formed between the opposing spherical surfaces facing the elastic spherical bodies 4.

The gap 4a is formed as a plurality of penetrating gaps by opposing spherical surfaces separated from each other by the elastic spherical bodies 4, and penetrates from the front surface side to the rear surface side of the shock absorption structure 2, so that the shock absorption structure 2 It is a ventilation passage.

On the other hand, the synthetic resin yarn 5 binds the plurality of elastic spherical bodies 4 to each other and suppresses the rigidity to be low so that the shape of the shock absorbing structure 2 can be deformed according to the structure deformation force applied from the outside of the shock absorbing structure 2. Bonded (soft bond). In the present application, all structures for achieving such soft coupling are referred to as soft coupling structures.

<Shock absorbing structure at the top of the cap body>
As shown in FIGS. 4A and 4B, the shock absorbing structure 3 includes a plurality of elastic spheres 4 arranged in a line in a triple circle and a plurality of circular elastic spheres 4. A synthetic resin thread 5 that penetrates in the circumferential direction and is connected to each other to form a bead shape, and further includes a plurality of synthetic resin threads 5A that connect the three parallel synthetic resin threads 5 in the radial direction of the circle. It has a disk shape as a whole.

In the shock absorbing structure 3, the elastic spherical bodies 4 are softly bonded to each other by the synthetic resin threads 5 and 5A. A gap 4a is formed between the adjacent elastic spherical bodies 4 and 4 (see FIG. 4A).

<Elastic spherical body>
As shown in FIG. 3B, FIG. 6A, and FIG. 6B, each elastic spherical body 4 constituting each of the shock absorbing structures 2 and 3 has a spherical outer shape, depending on the magnitude and direction of external force applied from the outside. It is elastically deformed.

The elastic spherical body 4 is made of polypropylene resin and is hollow. The elastic spherical body 4 is formed with vent holes 4b and 4c for communicating the inside and the outside.

The elastic spherical body 4 has a shell thickness of about 0.3 mm, a sphere diameter of about 11 mm, and vent holes 4 b and 4 c having an opening diameter of about 6 mm.

As shown in FIGS. 3A to 3C, each elastic spherical body 4 has its vent holes 4b and 4c facing the front and back sides (upper and lower sides in FIG. 3B) of the shock absorbing structures 2 and 3. The orientation is arranged. The ventilation holes 4b and 4c and the internal space of the elastic spherical body 4 constitute a ventilation path different from the air gap 4a that connects the front surface side and the back surface side of the shock absorbing structures 2 and 3.

Further, as shown in FIG. 3B, a small thread hole 4d for allowing the synthetic resin thread 5 to pass therethrough is provided at the spherical top where the elastic spherical bodies 4 are close to each other.

As shown in FIG. 5, a knot 5n is formed at the end of the synthetic resin yarn 5, and the knot 5n prevents the shock absorbing structures 2 and 3 from falling apart.

Next, the operation will be described.

First, the effects of the shock absorbing structures 2 and 3 of the protective hat 1 of the first embodiment are the “venting action”, “shock absorbing action”, “following deformation action”, “environment temperature maintaining action”, and “lightening action”. This will be explained separately.

[Breath action (breathability)]
As shown in FIGS. 3A to 3C, the elastic spherical bodies 4 gather in a flat shape to form a sheet, and because of the spherical shape, there are voids 4a (see FIGS. 3A and 4A) formed between the elastic spherical bodies 4 and 4. It functions as a ventilation path that passes from the front surface side to the rear surface side of the shock absorbing structures 2 and 3, and the air permeability of the shock absorbing structures 2 and 3 is ensured (see arrows W3 and W4 in FIG. 2).

Since the elastic spherical body 4 is spherical, the ground contact area is reduced because the elastic spherical body 4 and the surface of the human body H and the back surface of the seat pocket of the hat body 1B are substantially point-contacted, thereby ensuring air permeability. (See FIG. 2).

Further, as shown in FIGS. 3B and 3C, the elastic spherical body 4 is hollow and passes through each elastic spherical body 4 so as to penetrate from the front side to the back side of the sheet-like shock absorbing structures 2 and 3. Since the pores 4b and 4c are formed, the air permeability is further increased (see arrows W1 and W2 in FIG. 2 and FIG. 6A).

[Shock absorption action (shock absorption)]
Since the elastic spherical body 4 is spherical, it exhibits impact absorbing performance from all directions. Specifically, as shown in FIG. 6B, the shock absorbing performance is shown in any input direction (for example, the direction indicated by the black arrow). Unlike conventional honeycomb-shaped blocks and the like, it does not show excellent shock absorption in only one direction, but shows high shock absorption performance in all directions.

In addition, since the outer shape of the elastic spherical body 4 is spherical, the contact surface increases as a load is applied, and injury caused by local load concentration on the receiving side of the human body (such as the scalp of the human body) can be alleviated.

Since the elastic spherical bodies 4 are softly coupled to each other, when the protective cap 1 provided with the shock absorbing structures 2 and 3 is worn, the head shape of any person H is also deformed to absorb individual differences. Fit (see FIG. 2). For this reason, when an impact is applied to the head via the protective cap 1, the impact force is dispersed without being concentrated in one place. Further, at this time, the sheet shape of the shock absorbing structure 2 is also deformed following the shape of the corner portion of the object 6, and the impact force is uniformly dispersed.

Further, as shown in FIG. 2, the elastic spherical body 4 is hollow, and the formed vent holes 4b and 4c are oriented in both directions of the normal direction of the head of the human body H and the curved surfaces of the head. When receiving an impact, the elastic spherical body 4 is sandwiched between the object 6 and the head surface, and the vent holes 4b and 4c are substantially closed. Thereby, since the elastic spherical body 4 functions like an air bag and the air gradually escapes as time passes, the shock absorption is particularly high.

[Following deformation action (flexibility)]
Since the elastic spherical bodies 4 are softly coupled to each other, the shock absorbing structures 2 and 3 fit to follow the body shape such as the head, which varies from person to person.

Since the elastic spherical body 4 itself is also elastically deformed, for example, the elastic spherical body 4 is deformed following the fine irregularities on the body surface.

That is, when a structure deforming force is applied, the deforming force is uniformly dispersed by soft coupling, and the entire body is deformed flexibly and only a part is not bent.

Furthermore, by connecting the central part of the elastic spherical body 4, even when the shock absorbing structures 3 and 4 are fitted to the body shape, a large gap that leads to a decrease in shock absorption is not left on the other collision surface side. It has become.

If only the ends of the elastic spherical body 4 located on the human body H side are coupled, a large gap is easily formed on the impact surface side of the impact absorbing structures 3 and 4, and the impact absorbing performance is deteriorated. Therefore, if it is desired to connect at the end of the elastic spherical body 4 on the human body H side, it is preferable to provide a certain gap between the elastic spherical bodies 4 and connect both ends.

[Environmental temperature maintenance (environmental temperature maintenance)]
The air permeability of the shock absorbing structures 2 and 3 is ensured, so that “steaming” and “heat accumulation” due to the shock absorbing structures 2 and 3 do not occur, and the elasticity constituting the shock absorbing structures 2 and 3 The environmental temperature of the spherical body 4 is difficult to change. The impact-absorbing performance of the elastic spherical body 4 is not easily lowered due to environmental temperature changes.

[Lightening effect (lightness)]
The shock absorbing structures 2 and 3 are reduced in weight by the gap 4a between the elastic spherical bodies 4 and 4. For example, in the general polystyrene used for the back of the helmet, it is formed in a uniform hemispherical layer shape without voids, but in the shock absorbing structures 2 and 3 of Example 1 according to the present invention, the elastic spherical body is as described above. It is reduced in weight by the gap 4a between 4 and 4.

Since the elastic spherical body 4 of Example 1 is hollow, the weight is further reduced accordingly.

Since the shock absorbing structures 2 and 3 do not require the use of a high-mass resin unlike the conventional honeycomb block in order to maintain the shape, it can be said that the weight is high in this respect.

More specifically, the shock absorbing structures 2 and 3 are formed in a flexible sheet shape by being penetrated by a plurality of elastic spherical bodies 4 in a skewer shape so that the synthetic resin yarns 5 are orthogonal to each other, and further each elastic body is elastic. Since the spherical body 4 has the property of returning to its original shape even when it is crushed, even if the entire shock absorbing structure 2 or 3 is extremely deformed by absorbing the shock, the shock absorbing structure 2 3 can return to its original shape. For this reason, the entire shock absorbing structures 2 and 3 are not irreversibly collapsed like a polystyrene foam or a honeycomb block, and it is not necessary to use a high-mass resin for maintaining the shape.

[Contrast effect]
A comparison effect using a foam material and polystyrene foam as a comparative example, which is provided on the human body wearing device and protects the human body from impact will be described.

The foam material shown in FIG. 10B is particularly excellent in flexibility and light weight, but it can be said that the balance of each performance is similarly poor overall because of low shock absorption, environmental temperature maintenance, and air permeability.

As shown in FIG. 10C, the polystyrene foam is excellent in shock absorption and has a certain amount of lightness, but has extremely low flexibility, air permeability and environmental temperature maintainability, and the overall balance of performance is very poor. It can be said.

For this reason, foam materials are required to improve air permeability and environmental temperature maintainability without impairing flexibility and lightness. Styrofoam is required to improve flexibility, air permeability and environmental temperature maintainability without impairing shock absorption.

On the other hand, the shock absorbing structure 2 according to the first embodiment of the present invention has the above-described functions that can solve these problems, and satisfies each performance at a high level (see FIG. 10A).

Next, the effect will be explained.

(1) When the outer shape is spherical and a plurality of elastic spherical bodies 4 that are elastically deformed according to the magnitude and direction of external force applied from the outside, and the plurality of elastic spherical bodies 4 are assembled into a planar shape or a linear shape A plurality of through-gap 4a is secured by opposing spherical surfaces of the plurality of elastic spheres 4 provided between the elastic spheres 4 so that the structure shape can be deformed according to the structure deformation force applied from the outside. And a soft coupling structure 5 coupled with low rigidity.
For this reason, the impact-absorbing structure that satisfies all of the impact absorption, flexibility, breathability, lightness, and environmental temperature maintainability can be provided by the above-described actions.

By using the shock absorbing structure according to the present invention instead of the shock absorbing member included in the human body protector such as the conventional protective hat, it is possible to add performance which is insufficient to the conventional one.

(2) The elastic spherical body 4 has air flow lines W1 and W2 parallel to air flow lines W3 and W4 passing from the front surface side to the back surface side thereof through the through-holes 4a of the shock absorbing structures 2 and 3. Ventilation holes 4b and 4c to be added are provided.
For this reason, in addition to the effect of (1), it can be set as the protective hat 1 with further high air permeability.

(3) The elastic spherical body 4 is a hollow elastic spherical body made of synthetic resin.
For this reason, the protective hat 1 which further improved air permeability, shock absorption, and environmental temperature maintenance property by the above-mentioned impact absorption action can be provided.

(4) The soft bond structure is a structure in which a plurality of elastic spherical bodies 4 assembled in a planar shape or a linear shape are connected by a synthetic resin thread 5.
For this reason, in addition to the effects (1) to (3), it is possible to provide the protective cap 1 which has high flexibility and absorbs individual differences in the shape of the head at a higher dimension and can follow and deform.

(5) A hat that is normally used is a breathable cloth hat main body, a plurality of seat pockets provided on the back surface of the cloth hat main body, each having a curved head shape, and each of the plurality of seat pockets. And an impact absorbing sheet loaded in the container.

Further, the shock absorbing sheet has a spherical outer diameter, and a plurality of elastic spherical bodies that are elastically deformed according to the magnitude and direction of external force applied from the outside, and the plurality of elastic spherical bodies are planar or linear. Provided between the assembled elastic spheres, the plurality of elastic spheres are separated from each other by opposing spherical surfaces, and a plurality of through gaps are secured, and the structure shape can be deformed according to a structure deformation force applied from the outside. In this way, the shock absorbing structure is provided with a soft coupling structure coupled with low rigidity, and has a predetermined divided sheet shape.

For this reason, the shock absorbing structures 2 and 3 can be attached to the hats that are usually used to make the protective hat 1 satisfying all of the impact absorption, flexibility, breathability, light weight, and environmental temperature maintenance at a high level. This will not impair the original comfort and design of the hat. Human damage caused by sudden accidents that occur in daily life without wearing a disaster hood, etc. can be minimized.

For example, when you go out, a relatively pointed object such as a metal pliers falls on the head from the top and hits you directly. In such a case, even if the head is hit unintentionally in a cave at a sightseeing spot or in an overhead escalator, the impact can be dispersed and absorbed.

7A and 7B show an impact absorbing structure 7 of Example 2 according to the present invention.

The shock absorbing structure 7 includes an elastic spherical body 4 and an adhesive portion 8 that softly bonds the elastic spherical bodies 4 to each other. The elastic spherical bodies 4 are softly coupled to each other by the bonding portion 8 to form a soft coupling structure. In addition, about the same member, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

According to the configuration of the shock absorbing structure 7 according to the second embodiment, the bonding area 8 increases the opening area of the gap 4a between the elastic spherical bodies 4, thereby improving the air permeability and the air permeability of the protective cap 1. As a result, the temperature environment around the elastic spherical body 4 is less likely to change, and the environmental temperature maintainability is also improved.

Since the degree of strength of the partial soft bond of the shock absorbing structure 7 can be changed depending on the type of adhesive used for the bonding portion 8, a desired shock absorbing structure 7 having locally different rigidity is obtained. Can do.

For example, when the shock absorbing structures 2 and 3 applied to the side portion and the zenith portion of the hat main body 1B are desired to determine the shape of the hat, the strength of the soft bond may be locally changed.

8A and 8B show an impact absorbing structure 10 of Example 3 according to the present invention.

Unlike the first and second embodiments, the shock absorbing structure 10 includes a solid elastic spherical body 11 and an elongated bonding portion 9 that softly bonds the elastic spherical bodies 11 to each other. Then, the elastic spherical bodies 11 are softly coupled to each other by the adhesive portion 9 to form a soft coupling structure. In addition, about the same member, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

According to the configuration of the shock absorbing structure 10 according to the third embodiment, since the bonding portion 9 of the second embodiment is narrower than the bonding portion 8 of the second embodiment, the air permeability of the structure is higher. . On the other hand, when the elastic spherical body 11 is solid, the impact absorbing performance of the structure is further improved. Therefore, the air permeability can be improved without impairing the shock absorption of the structure.

For example, when there is a demand for using a hat with good breathability as much as possible as a hat to be worn in summer, the protective hat 1 provided with the shock absorbing structure 10 ensures high breathability according to demand. be able to. Moreover, although the summer is a season in which dirt such as sweat is likely to occur, the anti-stain property can be improved by making the elastic spherical body 11 solid compared to a hollow one.

9A and 9B show an impact absorbing structure 12 of Example 4 according to the present invention.

The shock absorbing structure 12 includes an elastic spherical body 11 and an adhesive portion 8 as a soft coupling structure that softly bonds the elastic spherical bodies 11 to each other. The elastic spherical bodies 11 are softly bonded to each other by the bonding portion 8 to form a soft bond structure. In addition, about the same member, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

According to the configuration of the shock absorbing structure 12 according to the fourth embodiment, the opening area of the gap 4a is narrower than that of the third embodiment by the adhesive portion 8 that softly bonds the elastic spherical bodies 11 to each other. , Breathability is low.

That is, by changing the configuration of the adhesive portion that softly connects the elastic spherical bodies 11 and 11 as the adhesive portion 9 (see Example 3) or the adhesive portion 8, the opening area of the gap 4a is adjusted to absorb the shock. The air permeability of the structure is adjusted.

For example, in winter, there is a demand for wearing a hat having as high a heat retention as possible. However, the impact absorbing structure 12 is formed by using a portion where the elastic spherical body 11 is softly coupled as an adhesive portion 9 in which the gap 4a is narrower than in the third embodiment. By using a combination of fabric materials suitable for the winter season, it is possible to provide the protective hat 1 having a high heat retaining property by suitably adjusting the air permeability of the shock absorbing structure.

Thereby, the environmental temperature around the elastic spherical body 11 is maintained at an environmental temperature exhibiting high shock absorption, and the shock absorption of the elastic spherical body 11 is not impaired. As a result, a decrease in flexibility of the shock absorbing structure 12 can be suppressed.

As described above, the shock absorbing structure according to the present invention has been described based on Examples 1 to 4. However, the configuration can be changed without departing from the gist of the present invention.

The “soft bond” between the elastic spheres 4 and 11 is realized by a flexible synthetic resin yarn in the shock absorbing structures 2 and 3 of the first embodiment, and a flexible adhesive in the second to fourth embodiments. Is realized. However, the configuration is not limited to these, and any configuration may be used as long as it can be “soft coupled”.

In Example 1, the thickness, diameter, and vent holes of the elastic spherical body 4 are set to predetermined sizes and lengths, but are not limited to these as long as the desired performance is exhibited.

The material of the elastic spheres 4 and 11 may be of any kind, and the resin constituting the elastic spheres 4 and 11 is not limited to polypropylene, and is known as a buffer material (other resins other than polypropylene and resins) Any other known material can be used.

The shape of the elastic spherical bodies 4 and 11 may be any spherical shape, and for example, an elliptical cross section or an oval shape may be used.

By reducing the ground contact area by tapering the shape of the elastic spherical bodies 4 and 11 that touch the human body H or clothing, the overall breathability of the shock absorber can be further improved or decreased. Can be adjusted.

The overall shape of the shock absorbing structure is not limited to that of the first embodiment, and may be any shape (three-dimensional shape or the like).

Cross-reference of related applications

This application claims priority based on Japanese Patent Application No. 2011-148026 filed with the Japan Patent Office on July 4, 2011, the entire disclosure of which is fully incorporated herein by reference.

Claims (5)

1. A plurality of elastic spherical bodies whose outer shape is spherical and elastically deformed according to the magnitude and direction of external force applied from the outside;
   The plurality of elastic spherical bodies are provided between the elastic spherical bodies in which the plurality of elastic spherical bodies are assembled in a planar shape or a linear shape, and a plurality of through-gap spaces are secured by opposed spherical surfaces that are separated from each other, and are applied from the outside. A soft coupling structure coupled with low rigidity so that the structure shape can be deformed according to the structure deformation force; and
   A shock absorbing structure characterized by comprising:
2. The shock absorbing structure according to claim 1,
   The impact-absorbing structure according to claim 1, wherein the elastic spherical body has a ventilation hole for adding a ventilation stream line parallel to a stream line of air passing from the front surface side to the back surface side of the structure body through the through gap.
3. The shock absorbing structure according to claim 1 or 2,
   The elastic spherical body is a hollow elastic spherical body made of a synthetic resin.
4. In the impact-absorbing structure according to any one of claims 1 to 3,
   The impact-absorbing structure is characterized in that the soft coupling structure is a structure in which the plurality of elastic spherical bodies assembled in a planar shape or a linear shape are connected by a synthetic resin thread.
5. A body protection body with breathability,
   A plurality of seat pockets provided on the back surface of the human body protector main body, with a shape obtained by dividing the head curved surface shape,
   An impact absorbing sheet loaded in each of the plurality of seat pockets,
   The shock absorbing sheet is
   A plurality of elastic spherical bodies whose outer diameter shape is spherical and elastically deformed according to the magnitude and direction of external force applied from the outside;
   The plurality of elastic spherical bodies are provided between the elastic spherical bodies in which the plurality of elastic spherical bodies are assembled in a planar shape or a linear shape, and a plurality of through-gap spaces are secured by opposed spherical surfaces that are separated from each other, and are applied from the outside. A soft coupling structure coupled with low rigidity so that the structure shape can be deformed according to the structure deformation force; and
   A human body protector comprising: a shock absorbing structure including: a predetermined divided sheet shape.

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