CN116473323A - Helmet - Google Patents

Abstract

The present disclosure relates to a helmet that includes a shell, a liner, and a moveable member. The lining is arranged on the inner side of the shell, the inner surface of the lining is used for being attached to the head of a human body, the lining comprises a fixed part and a movable part, the fixed part is connected with the shell, and the movable part and the shell can rotate and displace. The movable piece comprises a sliding sheet and a rotating part. The slide is attached to the outer surface of the movable portion of the liner. The rotating part is rotatably connected to the shell, at least part of the rotating part protrudes out of the inner surface of the shell, a plurality of rotating parts are distributed at intervals, and the rotating parts can contact the sliding sheets and rotate so as to reduce the resistance of the rotating displacement of the movable part and the shell. The device is more beneficial to the rotation of the shell, counteracts more energy generated by tangential impact force, can greatly slow down the impact on the head of a human body, reduces the amplitude and the speed of neck twisting when the head is subjected to the tangential impact force, and improves the protectiveness of the helmet.

Description

helmet

technical field

The present disclosure relates to the field of head protectors, in particular, to a helmet.

Background technique

The helmet is a protective device for protecting the head. The helmet usually includes a shell and an inner lining arranged inside the shell. The shell is a rigid shell to avoid penetration to resist damage to the head by foreign objects. The main function of the lining is to improve the protective performance of the helmet and the comfort of wearing.

The existing helmet can effectively reduce the damage to the user's head when the helmet is impacted by the radial direction (ie, the normal direction of the outer surface of the helmet). But in fact, when a collision accident occurs, the probability of the helmet to withstand a purely radial impact is relatively small. More often than not, in addition to the radial impact of the helmet, there is also a tangential impact of the helmet. Recent research in the field of traumatic brain injury has shown that shear forces from rotational impacts are much more damaging to brain cells than radial forces. Some studies have shown that the sensitivity of human brain tissue to shear force is much higher than the radial compression force applied during impact, and the head is prone to various mild traumatic brain injuries such as diffuse axonal injury or subdural hematoma after rotational impact.

For this reason, in the related art, a sliding mechanism is set between the shell and the inner liner, and bound by a silicone belt. Through the sliding of the sliding mechanism, the inner lining can rotate relative to the shell to reduce the damage caused by the tangential impact force. However, the silicone belt will pull on the shell and the inner lining, limiting the sliding stroke of the sliding mechanism, hindering the rotational displacement, affecting the mitigation effect on the tangential impact force, and the protection is not good.

Contents of the invention

The purpose of the present disclosure is to provide a helmet to improve the mitigation effect of the helmet on tangential impact force, thereby improving the protection of the helmet.

In order to solve the above technical problems, the present disclosure adopts the following technical solutions.

The present disclosure provides a helmet, which includes: a shell; a liner arranged inside the shell, the inner surface of the liner is used to be attached to the human head, the liner includes a fixed part and a movable part, the fixed part is connected to the shell, the movable part and the shell can be rotated and displaced; The part can contact the sliding piece and rotate, so as to reduce the resistance of the rotating displacement of the movable part and the housing.

In some embodiments of the present application, the rotating part is a universal ball that can rotate in multiple directions.

In some embodiments of the present application, the movable part further includes a plurality of installation parts distributed at intervals; the installation parts are embedded in the housing, and the installation parts are provided with installation grooves; part of the universal ball is rotatably arranged in the installation groove, and the rest is located outside the installation groove and protrudes from the inner surface of the housing.

In some embodiments of the present application, the installation groove is a spherical groove larger than 1/2, so that the peripheral edge of the opening of the installation groove can limit the universal ball in the installation groove.

In some embodiments of the present application, the installation part includes a connecting piece; a plurality of connecting pieces are stacked, and a filling groove is formed between adjacent connecting pieces; the filling groove is filled by the casing.

In some embodiments of the present application, the connecting piece extends along the tangential direction of the housing; the opening of the filling groove faces the tangential direction of the housing.

In some embodiments of the present application, both the rotating part and the mounting part are made of elastic material, and the sliding piece is made of plastic material.

In some embodiments of the present application, the mounting part includes a first mounting piece, a second mounting piece, and a connecting column; a filling groove is provided between the first mounting piece and the second mounting piece; the connecting column connects the first mounting piece and the second mounting piece; the filling groove is filled by the housing.

In some embodiments of the present application, a plurality of sliding sheets are distributed at intervals, and each of the sliding sheets can contact at least one of the rotating parts.

In some embodiments of the present application, the housing includes an outer shell and a buffer layer; the buffer layer is connected in the outer shell and is located between the outer shell and the lining; the rotating part is rotatably connected inside the buffer layer, and at least part of the rotating part protrudes from the inner surface of the buffer layer.

It can be seen from the above technical solutions that the embodiments of the present disclosure have at least the following advantages and positive effects:

In the helmet of the embodiment of the present disclosure, the liner can be made of a flexible and elastic material, and the inner surface of the liner is used to fit on the head of the human body to improve the wearing comfort of the helmet. The lining includes a fixed part and a movable part. The fixed part is connected to the shell, and the movable part is not connected to the shell. Therefore, the movable part and the shell can undergo rotational displacement. When the shell is subjected to a tangential impact force, the shell rotates relative to the movable part, and at least part of the energy generated by the tangential impact force is converted into the kinetic energy of the shell rotation, so as to slow down the impact on the human head and avoid rotational sprains on the user's head. In addition, multiple rotating parts can contact the sliding plate and rotate, which can reduce the resistance when the movable part and the shell undergo rotational displacement, and is more conducive to the rotation of the shell, offsetting more energy generated by tangential impact force, which can greatly slow down the impact on the human head, reduce the amplitude and speed of neck twisting when the head is subjected to tangential impact force, and improve the protection of the helmet.

Description of drawings

Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals designate the same or similar parts throughout.

in:

Fig. 1 is a schematic structural diagram of a helmet according to an embodiment of the present disclosure.

FIG. 2 is a cross-sectional view of FIG. 1 , wherein the sliding piece is an embodiment.

FIG. 3 is an enlarged schematic view of area A in FIG. 2 .

Fig. 4 is a cross-sectional view of Fig. 1, wherein the sliding plate is another embodiment.

FIG. 5 is a schematic structural diagram of the buffer layer in FIG. 2 .

Fig. 6 is a schematic structural view of the rotating part in Fig. 3 and the mounting part of an embodiment.

FIG. 7 is a schematic diagram of the exploded structure of FIG. 6 .

FIG. 8 is a sectional view of FIG. 6 .

Fig. 9 is a structural schematic diagram of the rotating part and the mounting part of another embodiment.

FIG. 10 is a schematic diagram of the exploded structure of FIG. 9 .

FIG. 11 is a sectional view of FIG. 9 .

Reference numerals are explained as follows: 1. shell; 11. shell; 12. cushioning layer; 2. movable part; 21. sliding plate; 22. rotating part; 23. mounting part; 231. connecting piece;

Detailed ways

While the present disclosure may readily manifest as embodiments in different forms, only some specific embodiments have been shown in the drawings and will be described in detail in this specification, with the understanding that the specification is to be considered as exemplary illustration of the principles of the disclosure and is not intended to limit the disclosure to what is described herein.

Therefore, a feature indicated in this specification will be used to describe one feature of an embodiment of the present disclosure, rather than implying that every embodiment of the present disclosure must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly described. Thus, the illustrated combinations are not intended to be limiting unless otherwise stated.

In the embodiments shown in the drawings, directional designations (such as up, down, left, right, front and rear) are used to explain that the structure and movement of the various elements of the present disclosure are not absolute but relative. These descriptions are applicable when the elements are in the positions shown in the drawings. If the indications of the positions of these elements are changed, the indications of these directions are changed accordingly.

The present disclosure provides a helmet, which is used to be worn on the head of a human body to protect the head. Defined in the radial direction of the helmet, that is, in the normal direction of the helmet surface, the side close to the head is the inner side, the inner side is the inner surface, the side away from the head is the outer side, and the outer side is the outer surface.

Referring to FIGS. 1 to 3 , a helmet provided by an embodiment of the present disclosure mainly includes a shell 1 , a liner 3 and a movable part 2 .

The shell 1 is a rigid shell 1 that avoids penetration to prevent damage to the head from foreign objects. It can be made of materials such as special steel, fiberglass, reinforced plastics, leather, nylon, and fiber-reinforced composite materials.

The liner 3 is arranged inside the housing 1, and the liner 3 can be made of a flexible and elastic material. The inner surface of the liner 3 is used to be attached to the human head to improve the wearing comfort of the helmet. For example, the lining 3 can be made of fabric or textile, and can be sandwiched with cushions such as sponges to further improve the wearing comfort and protection of the helmet.

In some embodiments, the helmet further includes a strap, which is connected to the lining 3, and the strap is used to bind the chin of the human body, so as to better fix the helmet.

The liner 3 includes a fixed part and a movable part, the fixed part is connected to the casing 1 , and the movable part and the casing 1 can be rotated and displaced. In this embodiment, the fixed part is a part attached to the face and close to the chin, and the movable part is a part attached to the brain.

The movable part is not connected with the casing 1, so the movable part and the casing 1 can undergo rotational displacement. When the casing 1 is subjected to a tangential impact force, the casing 1 rotates relative to the movable part, and at least part of the energy generated by the tangential impact force is converted into the kinetic energy of the rotation of the casing 1, so as to slow down the impact on the human head and avoid rotational sprains on the user's head.

It can be understood that the fixed part only connects the liner 3 to the shell 1. In the case of ensuring the connection strength, the area of the fixed part is as small as possible, and the area of the movable part is as large as possible, which is more conducive to the rotational displacement of the movable part and the shell 1.

Please refer to FIG. 2 and FIG. 3 , the movable part 2 includes a sliding piece 21 and a rotating part 22 . The slide 21 is attached to the outer surface of the active part of the liner 3 . The rotating part 22 is rotatably connected to the housing 1 , and at least part of the rotating part 22 protrudes from the inner surface of the housing 1 , and a plurality of rotating parts 22 are distributed at intervals. A plurality of rotating parts 22 can contact the sliding plate 21 and rotate to reduce the resistance of the movable part and the rotational displacement of the housing 1, which is more conducive to the rotation of the housing 1 and offset the energy generated by more tangential impact force, which can greatly slow down the impact on the human head, reduce the amplitude and speed of neck twisting when the head is subjected to tangential impact force, and improve the protection of the helmet.

In this embodiment, the shape of the sliding piece 21 is circular. Of course, the shape of the sliding piece 21 may also be any polygonal or irregular shape, which is not limited here.

The sliding sheet 21 can be made of plastic material, such as polypropylene, which has a light specific gravity, improves wearing comfort, and has stable properties. There are a plurality of sliding pieces 21 distributed at intervals. The sliding pieces 21 are connected to the outer surface of the movable part of the lining 3, which increases the stiffness of the connection to a certain extent, which is beneficial to improving the protective performance of the helmet against the puncture force in the radial direction, but also reduces the elasticity of the lining 3 at the same time. By distributing a plurality of sliding pieces 21 at intervals, the interval between adjacent sliding pieces 21 makes way for the deformation of the lining 3, maintains the elasticity of the lining 3, and facilitates the rotational displacement of the lining 3 and the shell 1. Each sliding piece 21 can contact at least one rotating part 22 to reduce the resistance when the movable part and the housing 1 undergo rotational displacement.

Please refer to FIG. 4 , in other embodiments, the sliding piece 21 is in the shape of a whole shell, which is adapted to the human head, and the shell-shaped sliding piece 21 can contact all the rotating parts 22 .

In this embodiment, the rotating part 22 is a universal ball that can rotate in multiple directions. When the housing 1 is subjected to tangential impact forces in different directions, the direction of rotational displacement of the movable part and the housing 1 is also different. The universal ball can rotate in multiple directions to adapt to the sliding friction between the sliding plate 21 and the universal ball in different directions. Therefore, no matter in which direction the housing 1 is subjected to a tangential impact force, the resistance to the rotational displacement of the movable part and the housing 1 in the corresponding direction can be reduced.

In other embodiments, the rotating part 22 is a roller rotatable around a rotation axis, and the cooperation between the pair of rotating parts 22 and the sliding piece 21 can reduce the resistance when the movable part and the housing 1 rotate in one direction. The rollers with non-parallel rotation axes can reduce the resistance when the movable part and the housing 1 are rotated and displaced in different directions. Among the plurality of rollers, there is at least one roller whose rotation axis is not parallel to the rotation axes of the rest of the rollers, which can reduce the resistance when the rotation displacement occurs in at least two directions, and by designing a plurality of rollers whose rotation axes are not parallel to each other, the resistance when the rotation displacement occurs in multiple directions can be reduced.

It is worth mentioning that when the casing 1 is subjected to a tangential impact force, the casing 1 will rotate rapidly in an instant, and the rotating part 22 contacts the sliding piece 21. The surface of the sliding piece 21 is relatively smooth, and the frictional resistance between the rotating part 22 and the sliding piece 21 is small. That is to say, when the shell 1 and the rotating part 22 are rotationally displaced relative to the liner 3, the liner 3, the sliding plate 21 and the head of the human body are kept as still as possible.

In addition, the movable part is not connected to the housing 1, part of the rotating part 22 is not in contact with the sliding plate 21, and there is a gap between it and the sliding plate 21, and the inner surface of the part of the lining 3 is not tightly fitted to the human head, and there is a gap between the human head and the human head. Due to the existence of these intervals, the contact area between the movable part and the casing 1 is reduced, and the resistance to rotational displacement can also be reduced to a certain extent.

Referring to FIG. 3 and FIG. 5 , in some embodiments, the casing 1 includes an outer shell 11 and a buffer layer 12 . The buffer layer 12 is connected in the shell 11 and is located between the shell 11 and the liner 3 . The rotating part 22 is rotatably connected in the buffer layer 12 , and at least part of the rotating part 22 protrudes from the inner surface of the buffer layer 12 . The buffer layer 12 can be made of EPS (expanded polystyrene), EPP (expanded polypropylene), EPO (expanded polystyrene-polyethylene), EPE (expanded polyethylene) and the like. The cushioning layer 12 improves the cushioning and shock-absorbing performance of the helmet. The buffer layer 12 can be stacked in multiple layers.

Referring to FIG. 3 , the movable member 2 further includes a mounting portion 23 , and a plurality of mounting portions 23 are distributed at intervals. The installation part 23 is embedded in the casing 1 , and the installation part 23 is provided with a installation groove. A part of the universal ball is rotatably arranged in the installation groove, and the rest is located outside the installation groove and protrudes from the inner surface of the housing 1 . In this embodiment, the mounting portion 23 is embedded in the buffer layer 12 . Of course, in other embodiments, the installation portion 23 may not be required, and the housing 1 is integrally formed with an installation groove.

Both the rotating part 22 and the mounting part 23 can be made of elastic material, such as but not limited to silicone. Compared with the buffer layer 12, the rotating part 22 and the mounting part 23 can better buffer and absorb shocks, and the sliding plate 21 made of plastic material has better strength than the buffer layer 12. Therefore, by setting the movable part 2, it is not only beneficial to reduce the damage caused by the tangential impact force, but also to improve the buffering and shock absorbing performance, and the protective performance against the puncture force in the radial direction.

The mounting groove is a spherical groove larger than 1/2, so that the peripheral edge of the opening of the mounting groove can limit the universal ball in the mounting groove to prevent the universal ball from falling off from the mounting groove.

Referring to FIGS. 6 to 8 , as an example of the installation portion 23 , the installation portion 23 includes a connecting piece 231 . A plurality of connecting pieces 231 are stacked, and filling grooves are formed between adjacent connecting pieces 231 . The filling groove is filled by the housing 1 , so as to increase the connection area between the installation part 23 and the housing 1 and improve the connection strength between the installation part 23 and the housing 1 . In this embodiment, the installation part 23 is an integrally formed structure, and the filling groove is filled by the buffer layer 12 .

The connecting piece 231 extends along the tangential direction of the housing 1 , and the opening of the filling groove faces the tangential direction of the housing 1 , so as to improve the connection strength more effectively and prevent the installation part 23 from being pulled out from the housing 1 .

Referring to FIGS. 9 to 11 , as another example of the installation part 23 , the installation part 23 includes a first installation piece 232 , a second installation piece 233 and a connecting post 234 . There is a filling groove between the first mounting piece 232 and the second mounting piece 233 . The connecting post 234 connects the first mounting piece 232 and the second mounting piece 233 , and the filling groove is filled with the buffer layer 12 to improve the connection strength of the mounting portion 23 disposed in the casing 1 .

While the present disclosure has been described with reference to a few exemplary embodiments, it is understood that the terms which have been used are words of description and illustration, rather than of limitation. Since the present disclosure can be embodied in various forms without departing from the spirit or essence of the disclosure, it should be understood that the above-mentioned embodiments are not limited to any aforementioned details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (10)

1. A helmet, comprising:

a housing;

the lining is arranged on the inner side of the shell, the inner surface of the lining is used for being attached to the head of a human body, the lining comprises a fixed part and a movable part, the fixed part is connected with the shell, and the movable part and the shell can rotate and displace; and

A moveable member, comprising:

a slip sheet coupled to an outer surface of the movable portion of the liner;

the rotating parts are rotatably connected to the shell, at least part of the rotating parts protrude out of the inner surface of the shell, a plurality of rotating parts are distributed at intervals, and the rotating parts can contact the sliding sheets and rotate so as to reduce the resistance of the rotating displacement of the movable parts and the shell.

2. The helmet of claim 1, wherein the rotating portion is a universal ball rotatable about multiple directions.

3. The helmet of claim 2, wherein the movable member further comprises a mounting portion, and the mounting portion is spaced apart by a plurality of mounting portions;

the mounting part is buried in the shell and is provided with a mounting groove;

the universal ball is partially rotatably arranged in the mounting groove, and the rest part is positioned outside the mounting groove and protrudes out of the inner surface of the shell.

4. A helmet according to claim 3, wherein the mounting slot is a ball-type slot of greater than 1/2 so that the perimeter of the opening of the mounting slot is capable of retaining the universal ball within the mounting slot.

5. A helmet according to claim 3, wherein the mounting portion comprises a connection tab;

a plurality of connecting pieces are overlapped, and filling grooves are formed between adjacent connecting pieces;

the filling groove is filled with the housing.

6. The helmet of claim 5, wherein the connecting piece extends tangentially to the shell;

the opening of the filling groove faces tangentially to the housing.

7. A helmet according to claim 3, wherein the rotating part and the mounting part are both made of an elastic material, and the sliding piece is made of a plastic material.

8. A helmet according to claim 3, wherein the mounting portion comprises a first mounting tab, a second mounting tab and a connecting post;

a filling groove is formed between the first mounting piece and the second mounting piece;

the connecting column is connected with the first mounting piece and the second mounting piece;

the filling groove is filled with the housing.

9. The helmet of claim 1, wherein a plurality of the sliding pieces are spaced apart, and each of the sliding pieces is adapted to contact at least one of the rotating parts.

10. The helmet of claim 1, wherein the shell comprises an outer shell and a cushioning layer;

the buffer layer is connected in the shell and is positioned between the shell and the lining;

the rotating part is rotatably connected to the inner side of the buffer layer, and at least part of the rotating part protrudes out of the inner surface of the buffer layer.