JP6236244B2 - Helmet headband - Google Patents

Description

  The present invention relates to a headband for a helmet that is provided inside a helmet body and is worn on a human head.

  2. Description of the Related Art Conventionally, a helmet includes a hard cap body and a wearing body made up of a hammock, a headband, a ring strap, etc. in contact with the human head. Further, in this type of helmet, an impact absorbing liner is attached to the inner surface of the cap body.

  The impact absorbing liner is made of foamed polystyrene or the like and covers most of the inner surface of the cap body. As a result, even if a helmet wearer falls or falls due to a fall, the shock absorbing liner appropriately absorbs the impact force at either side of the frontal head or the back of the head to protect the human head (See, for example, Patent Document 1).

JP-A-8-311713

  However, if an impact absorption liner is provided between the cap body and the wearing body, the air gap between the cap body and the human head becomes small, so the air permeability inside the helmet is poor, and the impact absorption liner Heat dissipation is also hindered. For this reason, there is an inconvenience that a warmth and stuffiness are generated inside the helmet and the comfort during wearing is impaired.

  On the other hand, in order to ensure air permeability and heat dissipation, it is conceivable to remove the shock absorbing liner from the inner surface of the cap body. However, when the shock absorbing liner is removed, the impact force can be reduced by the wearing body such as a hammock when a falling object collides from the position directly above the cap body, but the frontal or occipital side when the wearer falls Since the impact force received from the surface cannot be absorbed, there is a disadvantage that sufficient protection performance during a crash cannot be obtained.

  In view of the above points, an object of the present invention is to provide a helmet headband that not only provides high comfort when wearing a helmet, but also can provide a helmet with sufficient fall protection performance. .

In order to achieve the above object, the present invention provides a headband for a helmet that is provided inside a helmet body of a helmet and is attached to a human head, a headband main body that comes into contact with the frontal and temporal regions of the human head, The shock absorbing structure includes: a circumference changing means for changing the circumference of the headband main body according to the person's head; and an impact absorbing structure that is positioned between the person's head and the cap body and absorbs an impact. Is connected to only the upper edge of the headband body and is located in a predetermined protection area above the headband body.

  According to this, it is possible to absorb the impact by the shock absorbing structure provided in the headband body without attaching the shock absorbing liner to the inner surface of the cap body as in the conventional case, so that the helmet has sufficient fall protection performance Can be granted. In addition, by eliminating the need for a conventional shock absorbing liner, a sufficient gap is secured between the human head and the cap body to provide air permeability and heat dissipation, preventing heat buildup and stuffiness inside the helmet. High comfort can be obtained.

  Further, in the present invention, the headband body is disposed at a lower end portion of a hammock provided with a plurality of legs provided radially inside a helmet body and in contact with a human head, the headband body The shock-absorbing structure portion connected to each other is disposed at a position corresponding to between the leg portions adjacent to each other. According to this, the shock absorbing structure can be provided using the space between the legs of the hammock.

  In the present invention, the headband main body and the shock absorbing structure are integrally formed of a synthetic resin. According to this, it is possible to prevent an increase in the number of parts of the headband due to the provision of the shock absorbing structure, and it is possible to reduce the number of helmet assembly steps and the manufacturing cost.

  The shock absorbing structure according to the present invention includes a plurality of tubular portions and a plate-like base portion that connects one end of each tubular portion to each other, and an impact force applied in the axial direction of each tubular portion. In contrast, it is possible to employ one having a predetermined shock absorbing capability.

An explanatory perspective view showing an attachment state of a headband of an embodiment of the present invention. The perspective view which shows the headband of this embodiment.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the headband 1 of this embodiment constitutes a helmet wearing body 3 together with a hammock 2. The wearing body 3 is provided inside a cap body 4 (indicated by phantom lines in the figure) formed of a hard material.

  The hammock 2 is in contact with the human head and forms a gap between the human head and the cap body 4. The headband 1 is fixed to the human head around the human head.

  Next, the configuration of the headband 1 according to the gist of the present invention will be described in detail. As shown in FIG. 2, the headband 1 has a discontinuous annular and substantially C-shaped headband main body 5 in a plan view, and the size of the human head on the back of the headband main body 5 (below the discontinuous portion). Size adjusting means 6 (peripheral length changing means) for adjusting the peripheral length of the headband main body 5 according to the above.

  Further, the headband body 5 is connected with a plurality of (four in this embodiment) shock absorbing structure portions 7 that are located between the human head and the cap body and absorb the shock.

  As shown in FIG. 1, the hammock 2 includes a plurality of (four in this embodiment) leg portions 8 that extend radially from the top of the head, and a connecting portion 9 that integrally connects the legs 8 at the top of the head. ing. Each leg part 8 is provided in the shape which curves so that it may correspond to a human head.

  At the lower end of each leg 8, a connecting means 10 to the inner peripheral surface of the cap body 4 is provided. The connecting means 10 includes a fixing member 11 fixed to the inner peripheral surface of the cap body 4 and a locking portion 12 that is detachably locked to the fixing member 11, and the locking portion 12 is a lower end of each leg portion 8. It is formed integrally with the part.

  As shown in FIG. 2, the shock absorbing structure portion 7 is formed in the same shape, and includes a plurality (eight in this embodiment) of cylindrical portions 13 and a bottom portion at one end of each cylindrical portion 13. And a plate-like base 14 connected to each other. The headband body 5 and each shock absorbing structure 7 are integrally formed by injection molding using a synthetic resin (for example, a polyolefin-based synthetic resin) as a material. As a result, each shock absorbing structure 7 is provided integrally with the headband main body 5 with a part of the base 14 connected to the headband main body 5.

  As shown in FIG. 1, the headband body 5 is disposed at the lower end of the hammock. And each shock absorption structure part 7 connected with the headband main body 5 is provided in the position corresponding to between the leg parts 8 adjacent to each other.

  Each cylindrical portion 13 of the shock absorbing structure portion 7 is formed in a polygonal cylindrical shape, and has an ability to absorb an impact force by collapsing in the axial direction. The base 14 is formed in a thin plate shape that can be bent appropriately.

  The shock absorbing structure 7 in the present embodiment has the following shock absorbing ability. That is, a shock absorber (having the same material and shape as the shock absorbing structure 7) subjected to high temperature treatment (exposed to + 50 ° C. for 2 hours) and low temperature treatment (exposed to −10 ° C. for 2 hours) is used as a load cell. When a flat striker having a mass of 5.0 kg and a diameter of 127 mm is dropped from a height of 0.5 m onto this shock absorber, the load is measured by a metal flat load cell. An impact load of 2.5 kN to 9.5 kN and a duration of impact force of 3 msec to 15 msec were employed.

  As shown in FIG. 1, each shock absorbing structure 7 includes a frontal protection area F on the front side of the cap body 4, a temporal protection area S on both sides of the cap body 4, and a cap body, respectively. 4 is disposed inside the occipital region protection region R on the rear surface side. As a result, a sufficient fall protection performance is exhibited in the forehead protection region F, the occipital region protection region R, and the temporal region protection region S of the cap body 4.

  In order to confirm the above-mentioned protection performance against a fall, as shown in FIG. 1, the helmet 3 provided with the dressing body 3 inside the cap body 4 falls and falls according to “Japanese Industrial Standard T811: 2000 Annex 2”. A test based on the provisions of safety hats was conducted. As a result, in the forehead test and the occipital head test, the impact force is suppressed to 9.81 kN or less as a composite of the cap body 4 and the wearing body 3, and the forehead protection region F and the occipital region protection region R Was found to have high crash protection performance.

  In addition, when the test based on the prescription | regulation of "Japanese Industrial Standard T8133: 2007" was performed with respect to the temporal region protection area S, it was confirmed that the impact force was suppressed to 15.00 kN (300 G) or less. It was. As a result, it was revealed that the temporal protection area S has sufficient protection performance.

  As described above, the shock absorbing structure 7 is provided at a position corresponding to each of the protection areas F, S, and R, so that a human head can be provided without providing a shock absorbing liner that covers most of the inner surface of the cap body as in the prior art. A relatively wide gap can be secured between the cap body 4 and the cap body 4 to obtain a sufficient fall protection performance, and air permeability and heat dissipation can be obtained when the helmet is worn, so that high comfort can be obtained.

  In addition, in this embodiment, although the cylindrical part 13 of the impact-absorbing structure part 7 was made into the polygonal cylinder shape, the cylindrical part 13 is not restricted to a polygonal cylinder shape, A cylindrical shape may be sufficient. Further, the quantity and size of the cylindrical portion 13 can be set as appropriate.

  The shock absorbing structure 7 may be provided only in a desired protection region among the protection regions F, S, and R. That is, although not shown, the shock absorbing structure portion 7 may be provided only in portions corresponding to the inside of the frontal head protection region F and the inside of the backhead protection region R of the cap body 4. In this case, the shock absorbing structure portion 7 in the temporal region protection area S is not necessary, and a wider gap can be formed between the human head and the cap body 4, thereby further improving the comfort during wearing. be able to.

  In addition, since the headband 1 of this embodiment is integrally formed by injection molding using synthetic resin as a material, at least the headband body 5 and the shock absorbing structure portion 7, the number of parts is reduced and the number of man-hours for assembling the helmet is reduced. Can be reduced. On the other hand, the headband of the present invention is not limited to this. For example, the headband body and the shock absorbing structure portion are separate members, and the shock absorbing structure portion is attached to the headband body by an appropriate connecting means or adhesive. A connected configuration may be adopted.

  In the present embodiment, the example in which the shock absorbing structure 7 is provided in the headband main body 5 so as to be positioned between the leg portions 8 of the hammock 2 is described. However, the headband of the present invention is not limited to this. is not.

DESCRIPTION OF SYMBOLS 1 ... Headband, 2 ... Hammock, 4 ... Cap body, 5 ... Headband main body, 6 ... Size adjustment means (peripheral length change means), 7 ... Shock absorption structure part, 8 ... Leg part, 13 ... Cylindrical part, 14 ... base , F, S, R ... protected area .

Claims (4)

In the helmet headband that is installed inside the helmet body and attached to the human head,
A headband body that comes into contact with the frontal and temporal regions of the human head, a peripheral length changing means that changes the peripheral length of the headband main body according to the human head, and the human head and the cap body. And a shock absorbing structure that absorbs the shock,
The headband for a helmet according to claim 1, wherein the shock absorbing structure is connected to only an upper edge of the headband main body and is located in a predetermined protective region above the headband main body. The headband body is disposed at the lower end of a hammock provided with a plurality of legs disposed radially inside a helmet body and in contact with the human head,
The helmet headband according to claim 1, wherein the shock absorbing structure connected to the headband main body is disposed at a position corresponding to the leg portions adjacent to each other.   The headband for a helmet according to claim 1 or 2, wherein the headband body and the shock absorbing structure are integrally formed of a synthetic resin.   The shock absorbing structure portion includes a plurality of tubular portions and a plate-like base portion that connects one end of each tubular portion to each other and has a predetermined resistance against an impact force applied in the axial direction of each tubular portion. The helmet headband according to any one of claims 1 to 3, wherein the helmet headband has an impact absorption capability.

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