WO2019176351A1 - Helmet - Google Patents

Abstract

In order to enhance manufacturing efficiency and reduce costs by allowing a liner to be arranged very simply and securely on the inside of a shell without using an adhesive or the like, the present invention has: a shell (2) which covers the head section of a wearer and forms the outer shape of a helmet; and a cushioning liner (3) arranged between the head section of the wearer and the inside of the shell (2), wherein: the liner (3) is formed in the shape of a liner by combining a plurality of liner pieces (3a), (3b), (3c) in the front-back direction or left-right direction of the shell (2); and a wearing opening (5) that is for the wearer and provided in the shell (2) is formed as a contracting edge section (10) having a reduced opening so as to prevent the escape of a piece connection end (11) generated when combining the liner pieces (3a), (3b), (3c) in the shell (2).

Description

helmet

The present invention relates to a helmet worn when riding a vehicle or performing sports.

In a helmet, a structure having a shell that covers the wearer's head and forms the outer shape of the helmet and a cushioning liner disposed between the wearer's head and the inside of the shell is known. Yes.
As this type of helmet, there is known a helmet in which the liner is divided into a plurality of liner pieces to facilitate the arrangement of the liner in the shell (see, for example, Patent Document 1).

Conventionally, regarding the dividing direction of the liner, it has been proposed to set the joining line when the liner pieces are combined so as to extend in the longitudinal direction of the shell, or to set the joining line so as to extend in the lateral direction of the shell. Has been.

JP-A-1-132809

When adopting a structure in which the liner is divided into a plurality of liner pieces and fitted into the shell, the joining surfaces of the liner pieces are bonded together, or the liner piece and the shell inner surface are bonded, It becomes necessary to prevent escape of the liner (a combination of a plurality of liner pieces).
In some cases, it is possible to prevent the liner from escaping from the shell by attaching a border material such as tape along the periphery of the opening of the covering opening (opening for the wearer's head) provided in the shell. There was also. All of these operations are manual operations, which cause low efficiency and high cost. In particular, the trimming material sometimes gives a strange appearance.

In addition, in the division | segmentation structure of a liner, when it sets so that the joining line of a liner piece may extend in the front-back direction of a shell, it means that the liner is what is called "vertically divided" with respect to a wearer's head. For this reason, there has been a concern that the impact absorbing power may be reduced with respect to the impact received by the wearer's frontal and occipital heads.
The present invention has been made in view of the above circumstances, and enables the placement of the liner in the shell to be easily and reliably performed without using an adhesive or the like, thereby increasing the production efficiency and reducing the cost. An object is to provide a helmet that can realize the above.

In order to achieve the above object, the present invention has taken the following measures.
That is, the helmet according to the present invention includes a shell that covers the wearer's head and forms a helmet outer shape, and a cushioning liner that is disposed between the wearer's head and the inside of the shell. The liner has a plurality of liner pieces arranged in a lining on the inner side of the shell by combining the liner pieces in the front-rear direction or the left-right direction of the shell. In the shell, the aperture is formed as a narrowed edge portion so as to prevent the escape of the piece continuous end generated when the liner pieces are combined.

It is preferable that the aperture edge has a bent shape that protrudes inwardly in the entire circumference or part of the circumferential direction of the covering mouth and engages with the piece-connected end.
It is possible to set the joining line when combining the liner pieces so as to extend in the left-right direction or the front-rear direction of the shell.
The liner piece is formed of a combination of three or more pieces in the front-rear direction or the left-right direction of the shell, and in the comparison of the elasticity expressed when strengthening the curved curve along the wearer's head shape, The liner pieces arranged between the two ends of the combination position may be formed of a highly elastic material rather than the liner pieces arranged between the two ends.

In the helmet according to the present invention, the liner can be arranged in the shell easily and reliably without using an adhesive, and the manufacturing efficiency can be increased and the cost can be reduced.

FIG. 4 is a sectional view taken along line AA in FIG. 3. It is the B section enlarged view of FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a bottom view (a plan view of a cover opening) showing a first embodiment of a helmet according to the present invention. It is the sectional side view which showed 1st Embodiment of the helmet which concerns on this invention in the decomposition | disassembly state. BRIEF DESCRIPTION OF THE DRAWINGS It is 1st Embodiment of the helmet which concerns on this invention, Comprising: The liner piece used by intermediate arrangement | positioning is shown, (a) is a top view, (b) is a front view. FIG. 3 is a cross-sectional view of the helmet according to the second embodiment of the present invention, viewed from the same viewpoint as FIG. 2 for easy comparison with the first embodiment. FIG. 3 is a cross-sectional view of the helmet according to the third embodiment of the present invention, viewed from the same viewpoint as FIG. 2 for easy comparison with the first embodiment. It is the bottom view (figure which looked at the cover mouth in plane) which showed a 4th embodiment of the helmet concerning the present invention. It is CC sectional view taken on the line of FIG.

Embodiments of the present invention will be described below.
1 to 5 show a first embodiment of a helmet 1 according to the present invention. The helmet 1 includes a shell 2 that covers the wearer's head and forms the outer shape of the helmet, and a cushioning liner 3 that is disposed between the wearer's head and the inside of the shell 2. .
The outer shape of the helmet formed by the shell 2 is not particularly limited, and may be a half type as exemplified in the first embodiment, a jet type, a full face type, or the like.

As a matter of course, the shell 2 is provided with a covering opening 5 for covering or taking off the head of the wearer.
The liner 3 is held inside the shell 2 in a lining shape. Here, “hold” does not mean that the liner 3 is fixed to the shell 2 by a fixing means such as adhesion, but the fitting relationship (engagement action) of the liner 3 with the shell 2 is the main structure, and a state in which it cannot escape is generated. Say what you let me. However, the adoption of the fixing means is not excluded as long as it has this fitting relationship.

Naturally, the liner 3 is formed with a hemispherical recess that conforms to the shape of the head of the wearer in an arrangement that is inside the cover 5 of the shell 2 so that a proper wearing feeling can be obtained for the wearer. It has become.
The liner 3 is divided into a plurality of (three pieces in the first embodiment) liner pieces 3 a, 3 b, 3 c, and these liner pieces 3 a, 3 b, 3 c are combined while corresponding to the shape in the shell 2. Thus, the entire shape is configured.

The dividing direction (combination direction) of each liner piece 3a, 3b, 3c may be either the front-rear direction or the left-right direction of the shell 2. In the first embodiment, the front-rear direction of the shell 2 is used. Therefore, the joining line formed when the liner pieces 3 a, 3 b, 3 c are combined is oriented in the left-right direction of the shell 2. In addition, what is combined in the left-right direction of the shell 2 (where the joining line is oriented in the front-rear direction of the shell 2) will be described later as a fourth embodiment.

The engagement structure employed to hold the liner 3 on the inner side of the shell 2 has a throttle edge 10 formed in the cover port 5 of the shell 2 as a main part. In the first embodiment, the aperture edge 10 is formed by bending the skirt of the shell 2 (the opening edge of the cover 5) inwardly in the entire circumference or in a part in the circumferential direction. Yes.
In the diaphragm edge 10 having such a bent shape, as is apparent from FIGS. 1 and 2, the piece continuous end 11 (the wearer's end) generated when the liner pieces 3 a, 3 b, 3 c are combined in the shell 2. It is an opening peripheral part of the hemispherical concave portion of the liner 3 for taking in and out the head and is also the thickness of the liner 3. Refer to FIG. Therefore, the liner 3 is prevented from escaping from the inside of the shell 2.

In order to combine the liner pieces 3a, 3b, and 3c in the shell 2, first, the liner piece 3a that is arranged on the front side of the shell 2 is fitted, and the liner piece 3c that is arranged on the rear side of the shell 2 is fitted. Then, a liner piece 3b having a central arrangement is fitted between the front and rear liner pieces 3a and 3c. Any of the order of the front and rear liner pieces 3a, 3c may be first, or may be simultaneous.

By finally inserting the liner piece 3b, which is arranged at the center, the front and rear liner pieces 3a, 3c are pressed so as to be distributed forward and backward, respectively, and as a result, the liner 3 ( liner pieces 3a, 3b, 3c) As a whole, it becomes impossible to move in the front-rear direction. Therefore, the escape of the liner 3 from the covered edge portion 10 of the shell 2 is prevented.

It should be noted that the liner 3 as a whole combining the liner pieces 3a, 3b, and 3c has a size that fits into the shell 2 without gaps or is slightly larger than that, so that the liner 3 fitted into the shell 2 is inserted. It goes without saying that misalignment and rattling can be prevented. Therefore, it is not necessary to bond the liner 3 to the shell 2.
In the first embodiment, as shown in FIG. 5, engagement protrusions 12a, 12b, 12c are provided on the front surface having a half-moon shape with respect to the centrally arranged liner piece 3b, and the rear surface is also engaged in the same manner. Protrusions 13a, 13b, and 13c are provided, and all the surfaces are uneven in the left-right direction.

On the other hand, as shown in FIG. 3, the meshing protrusions 12a to 12c and 13a to 13c of the centrally arranged liner piece 3b are provided on the rear surface of the frontly arranged liner piece 3a and the front surface of the rearly arranged liner piece 3c. Engaging protrusions 14a to 14b and 15a to 15b are provided so as to be engaged with each other, and are uneven in the left-right direction as in the case of the liner piece 3b arranged at the center.

Therefore, when the liner pieces 3a, 3b, 3c are combined in the shell 2, the meshing projections (12a-12c and 14a-14b, 13a-13c and 15a-15b) are alternately meshed, and the liner pieces 3a, 3b, The horizontal alignment of 3c is restricted to a unique one.
In addition, as is apparent from the centrally arranged liner piece 3b shown in FIG. 5, the engagement protrusions 12b and 13b, which are the center of the engagement protrusions 12a to 12c and 13a to 13c, An inclination is given so that becomes smaller. Therefore, when the center liner piece 3b is pushed into the space between the front and rear liner pieces 3a and 3c fitted in the shell 2, the right and left centering protrusions 12b and 13b cause a wedge action in the left and right direction. As a result, the joint strength between the three of the liner pieces 3a, 3b, 3c is further increased.

Although illustration is omitted, the centrally arranged liner piece is also applied to the meshing projections 14a to 14b provided on the rear surface of the liner piece 3a arranged on the front side and the meshing projections 15a to 15b provided on the front surface of the liner piece 3c arranged on the rear side. An inclination (in the same direction) may be provided so as to correspond to the engaging protrusions 12b and 13b at the left and right center of 3b. Of course, it may not be provided. In some cases, in order to increase the wedge effect, an inclination that reverses the inclination direction may be provided.

The liner 3 is preferably formed of a resilient material such as polystyrene foam. In this case, in the comparison of the elasticity generated when the curved curve along the shape of the wearer's head is strengthened, both ends at the combination position of the three pieces (the liner piece 3a arranged at the front side and the liner piece 3c arranged at the rear side) ) Between them (in the case of 3 pieces, the centrally arranged liner piece 3b) may be formed of a highly elastic material.

For example, the front and rear liner pieces 3a and 3c are made of EPS (bead method foamed polystyrene), and the centrally arranged liner piece 3b is made of EPP (bead method foamed polypropylene) which is more elastic than EPS. Of course, all the liner pieces 3a, 3b, 3c (the entire liner 3) may be formed of EPS or EPP.
This makes it easy to combine the liner pieces 3a, 3b, and 3c in the shell 2, and the front-rear pressing force to the front and rear liner pieces 3a and 3c generated by the centrally arranged liner piece 3b. The advantage that flexibility can be given and it can utilize as a position shift prevention effect will be acquired.

As is clear from the above description, in the helmet 1 according to the present invention, the liner 3 can be easily and reliably placed in the shell 2 without using an adhesive or the like. Cost can be realized.
FIG. 6 shows a second embodiment of the helmet 1 according to the present invention. The difference between the second embodiment and the first embodiment is that the amount of the diaphragm edge 10 employed in the shell 2 is projected from the bottom of the shell 2 to the inside of the cover port 5 (the size of the bent structure). ) Is larger.

That is, since the amount of overhang is larger than that of the aperture edge 10 of the first embodiment, the amount of engagement of the liner 3 with the piece continuous end 11 is also large (the amount is approximately comparable to the thickness of the liner 3 at the maximum). ).
By doing in this way, the holding | maintenance strength of the liner 3 by the shell 2 becomes still stronger, and the advantage that the position shift prevention effect and the rattle prevention effect of the liner 3 improve further is acquired. Other configurations and operational effects are the same as those of the first embodiment.

FIG. 7 shows a third embodiment of the helmet 1 according to the present invention. The third embodiment is different from the first embodiment and the second embodiment in that the diameter of the diaphragm edge 10 employed in the shell 2 decreases as the skirt of the shell 2 approaches the cover port 5 over the entire circumference. It is in the point which narrows down so that the outer diameter is reduced.
Unlike the first embodiment and the second embodiment, it is not always necessary to engage the diaphragm edge portion 10 with the piece continuous end 11 of the liner 3. Of course, the inner surface of the shell 2 wraps in a wide range with respect to the outer surface of the liner 3 without being engaged with the piece end 11 of the liner 3. There will be no escape from the inside, no misalignment or rattling.

8 and 9 show a fourth embodiment of the helmet 1 according to the present invention. The helmet 1 of the fourth embodiment is most different from the first embodiment in that the dividing direction (combining direction) of the liner pieces 3d and 3e constituting the liner 3 is the left-right direction of the shell 2.
In this case, a joining line when combining the liner pieces 3d and 3e is generated in a direction extending in the front-rear direction of the shell 2. In short, the liner 3 is so-called “vertically divided” with respect to the wearer's head.

However, in the fourth embodiment, the left-side arranged liner piece 3d is provided with a stepped portion 16a protruding toward the right-side arranged liner piece 3e, and the right-side arranged liner piece 3e is provided with a left-side arranged liner. An overhang portion 16b that engages with the step portion 16a of the piece 3d is provided.
For this reason, when the left and right liner pieces 3d and 3e are combined, measures are taken so that the stepped portion 16a and the overhang portion 16b are engaged with each other so as not to overlap and a vertically split gap is not generated.

Therefore, even if the wearer receives an impact from the frontal or occipital direction of the wearer, the left and right liner pieces 3d and 3e are not separated so as to form a vertically cracked gap at the center of the left and right. Can be sufficiently absorbed.
On the contrary, the advantage that the left and right liner pieces 3d and 3e are not connected and fixed in the left-right direction can be flexibly adapted to different head sizes for each wearer (becomes a free size).

In the fourth embodiment, as is clear from FIG. 9, the stepped portion 16a is provided with meshing projections 18 in a gear-like arrangement along the front-rear direction of the shell 2, and the overhang portion 16b has A meshing projection (not shown) that meshes with these meshing projections 18 is provided.
Therefore, when the liner pieces 3d and 3e are combined in the shell 2, the meshing protrusions are engaged with each other, and the alignment of the liner pieces 3d and 3e in the front-rear direction is uniquely restricted. Of course, it is also possible to increase the joining force of the liner pieces 3d and 3e, and to prevent the positional deviation and backlash of the liner 3 in the shell 2.

The fourth embodiment is also exemplified in the first embodiment (see FIG. 2), the second embodiment (see FIG. 6), the third embodiment (see FIG. 7), etc. with respect to the covering port 5 of the shell 2. The aperture edge 10 is provided.
Therefore, also in the fourth embodiment, the effects described in the first to third embodiments can be obtained in the same manner, and this makes it easy to dispose the liner 3 in the shell 2 without using an adhesive or the like. In addition, it is possible to reliably perform the operation and effect of the helmet 1 according to the present invention, which can increase the production efficiency and realize the cost reduction.

By the way, the present invention is not limited to the above-described embodiment, and can be appropriately changed according to the embodiment.
For example, in the helmet 1 shown in the first embodiment, the centrally arranged liner piece 3b may be integrated with the front arranged liner piece 3a, or may be integrated with the rear arranged liner piece 3c.

In the fourth embodiment as well, as illustrated in the first embodiment, the liner 3 can be divided into three or more pieces in the left-right direction.
In the helmet 1 shown in the fourth embodiment, the dividing direction (combining direction) of the liner pieces 3d and 3e constituting the liner 3 is the same as the left-right direction of the shell 2, but this case is also exemplified in the first embodiment. As described above, the number of divisions may be three or more. That is, the liner pieces 3d and 3e can be used as both ends at the combination position of the three pieces, and an intermediate liner piece can be sandwiched between them.

DESCRIPTION OF SYMBOLS 1 Helmet 2 Shell 3 Liner 3a-3e Liner piece 5 Cover opening | mouth 10 Diaphragm edge 11 Piece connection end 12a-12c Engagement protrusion 13a-13c Engagement protrusion 14a-14b Engagement protrusion 15a-15b Engagement protrusion 16a Step part 16b Overhang part 18 Meshing protrusion

Claims (6)

1. A shell that covers the wearer's head and forms a helmet outline;
   A cushioning liner disposed between the head of the wearer and the inside of the shell;
   The liner is arranged in a lining inside the shell by combining a plurality of liner pieces in the front-rear direction or the left-right direction of the shell,
   The wearer's head opening provided in the shell is formed as a throttle edge with a small opening so as to prevent escape of the piece continuous end that occurs when the liner pieces are combined in the shell. A featured helmet.
2. 2. The helmet according to claim 1, wherein the narrowed edge portion has a bent shape that protrudes inwardly in the entire circumference or part of the circumferential direction of the covering mouth and engages with the piece-connected end. .
3. The helmet according to claim 1 or 2, wherein a joining line when the liner pieces are combined is set so as to extend in the left-right direction or the front-rear direction of the shell.
4. The liner piece is formed of a combination of three or more pieces in the front-rear direction or the left-right direction of the shell,
   In the comparison of the elasticity expressed when strengthening the curved curve along the wearer's head shape, the liner pieces arranged between these rather than the liner pieces arranged at both ends of the combination position are more The helmet according to claim 1, wherein the helmet is made of a highly elastic material.
5. The liner piece is formed of a combination of three or more pieces in the front-rear direction or the left-right direction of the shell,
   In the comparison of the elasticity expressed when strengthening the curved curve along the wearer's head shape, the liner pieces arranged between these rather than the liner pieces arranged at both ends of the combination position are more The helmet according to claim 2, wherein the helmet is made of a highly elastic material.
6. The liner piece is formed of a combination of three or more pieces in the front-rear direction or the left-right direction of the shell,
   In the comparison of the elasticity expressed when strengthening the curved curve along the wearer's head shape, the liner pieces arranged between these rather than the liner pieces arranged at both ends of the combination position are more The helmet according to claim 3, wherein the helmet is made of a highly elastic material.

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