JPH0516182Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention mainly relates to a helmet worn when riding a motorcycle, and particularly to a helmet equipped with a ventilator. [Prior Art] It is compulsory to wear a helmet when riding a motorcycle, etc., but in general, in conventional helmets, the helmet is used as a shock absorber to protect the head when worn. A foamed resin material is disposed inside the cap body between the outer shell material and the inner shell material of the cap shell. Styrofoam is generally used as a liner for this impact cushioning material because it is inexpensive, lightweight, and has good performance. [Problems to be solved by the invention] Styrofoam, etc. used as the above-mentioned shock absorbing material (so-called liner) not only buffers shock but also has excellent heat insulation properties, so it is effective against cold when worn in winter. It has the advantage that it can effectively block heat transfer from the outer shell material heated by direct sunlight etc. in the summer. However, due to the heat insulating effect as mentioned above, when used in the summer, the internal temperature of the helmet rises to over 45℃, which causes discomfort to the helmet wearer due to abnormal sweating, odor, etc. I had a problem with it. For this reason,
Recently, helmets equipped with ventilation systems have been put on the market. In this ventilation system, an air inlet is formed on the front surface of the helmet, and an air outlet is formed on the rear surface of the helmet, and the wind (air) that flows into the helmet from the air inlet during riding is circulated to the head, and then the air is It is made to be discharged from the outlet. However, these helmets have a large number of pads arranged to fill the gap between the inside of the helmet and the head, making it difficult to manufacture due to the large number of components. The disadvantage is that it is difficult to distribute. In particular, the top of the head, which is covered by the shell of the helmet, has difficulty in air circulation, making it painful to wear the helmet in the summer. An object of the present invention is to provide a helmet equipped with a ventilator that has a reduced number of components, has good air permeability, and is comfortable to wear. [Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and the helmet equipped with a ventilator according to the present invention has a space formed inside the outer shell material so that the inner shell material and a helmet in which an air inlet is formed on the front side of the cap shell and an air outlet is formed on the rear side of the cap shell in communication with the gap, wherein the cap shell is made of hard resin as an outer shell material. The material and the inner shell material are integrally molded by sheet blow molding using a soft resin material, and the inner shell material is formed with a predetermined number of recesses in which air holes are formed, and the bottoms of the recesses and The structure is formed by joining the outer shell material. [Function] In a helmet equipped with a ventilator according to the present invention, a predetermined number of recesses with air holes are formed in the inner shell material, and the bottoms of the recesses and the outer shell material are joined to form an outer shell material. A gap is formed between the shell material and the inner shell material, and this gap is used as an air passage to send the wind (air) flowing in from the air inlet between the inner shell material and the head, and further through this gap. Ensure ventilation by discharging air through the air outlet. In addition, since a hard resin material is used as the outer shell material and a soft resin material is used as the inner shell material, impact energy is effectively dispersed by the hard outer shell material, and impact energy is dispersed by the inner shell material made of a soft material. Can be absorbed effectively. Furthermore, since they are integrally molded by sheet blow molding, the number of products can be omitted and manufacturing is simplified. [Example] Hereinafter, as a helmet equipped with a ventilator of the present invention, an example applied to a cap-type helmet will be described based on the drawings. Note that the members, arrangement, etc. described below do not limit the present invention, and can be variously modified within the scope of the spirit of the present invention. FIG. 1 is a sectional view of a helmet according to the present invention. The cap-type helmet H of this example consists of a substantially hemispherical cap shell 1 and a collar body 2.
is formed at the front of the cap shell 1 when it is attached, and a chin strap (not shown) is attached to the cap shell. The cap shell 1 of this example includes an outer shell material 3 and an inner shell material 4.
and a gap 5 formed between the outer shell material 3 and the inner shell material 4. The outer shell material 3 in this example is made of a hard synthetic resin material such as polypropylene (PP), ABS resin, polycarbonate (PC), polyethylene (PE), polyamide (PA), etc., and has a thickness of 3 to 5 mm and a substantially hemispherical shape. is formed. The inner shell material 4 is made of a soft synthetic resin such as polypropylene (PP), polyethylene (PE), or polyvinyl chloride (PVC) or semi-hard, and has a thickness of 1 to 2 mm.
A predetermined number (5 to 9, in this example, 5) of sheet materials with a diameter of about It is formed into a hemisphere. The bottom surface 6a of the recess 6 formed in the inner shell material 4
is joined to the inside of the outer shell material 3. In this way, there is a gap 5 between the outer shell material 3 and the inner shell material 4.
is formed. Note that the width of the gap 5 is the width of the inner shell material 4.
Depends on the depth of the recess 6 formed in. A predetermined number (four in this example) of air holes are bored in the recess 6 of the inner shell material 4. Further, in this example, air holes 10 are formed also on the surface of the inner shell material 4 other than the recess 6. These air holes 7 and 10 are
They are formed in the inner shell material 4, which serves as an impact material, and are formed in an appropriate number so as not to reduce the strength of the inner shell material 4. When the cap-type helmet H is attached, an eave-shaped collar body 2 is disposed on the lower outer side of the outer shell material 3 on the front side, and is held at a predetermined position on both ends of the collar body 2 by means of attachment tools 12. It is attached to the outer shell material 3. In addition, a large-diameter air inlet 8 is formed in the lower front portion of the outer shell material 3 and the upper surface side of the flange body 2 when the outer shell material 3 is attached to the outer shell material 3.
and the space 5 between the inner shell material 4 and the inner shell material 4. On the front surface of the air inlet 8, a sliding or rotary shutter (not shown) or the like is used to adjust or shut off the amount of air flowing into the air inlet 8. Further, the shutter may be provided with a dustproof screen or the like to prevent dirt, dust, rainwater, etc. from entering the space 5. In addition, an air outlet 9 is formed in a lower part of the rear side of the outer shell material 3 when it is attached so as to communicate with the outside. The air outlet 9 of this example is
Although it is formed on the outer shell material 3, if it is formed on the lower rear side when the inner shell material 4 is attached, the air outlet will not be exposed and the appearance can be improved. In the figure, reference numeral 11 is an ear pad, and reference numeral 13 is a mounting member for attaching the ear pad 11. The cap shell 1 having the above structure can be formed, for example, as follows. That is, the cap shell is formed by sheet blow molding in which two sheets, one for the outer shell material 3 and the other for the inner shell material 4, are extruded using a slit die and then molded using a predetermined mold. 1 is molded, and air holes 7 and 10 are bored at predetermined locations. The helmet H configured as described above is
In response to external impact force, the hard outer shell material 3 effectively disperses the impact energy, and the soft inner shell material 4 effectively absorbs the impact energy applied from the outside. Effectively protect the head from impact. As a ventilation system, wind (air) flows from the air inlet 8 into the gap 5 formed in the cap shell 1,
The air is blown out from air holes 7 and the like formed in the recess 6 on the front side of the inner shell material 4, and flows through the head and the inner circumferential surface of the inner shell material 4. Thereafter, the air is discharged from the air outlet 9 through the gap 5 from the air hole 7 of the recess 6 formed on the rear side of the inner shell material 4, and the inside of the helmet H is efficiently ventilated. An example in which the temperature difference of a helmet having the above configuration was measured will be described based on Tables 1 and 2. Table 1 shows the measurement of the temperature rise inside the helmet in a stationary state.
Experiments were conducted over a time period of 10 and 15 minutes on a conventional product using a cushioning material made of styrofoam and a helmet according to the present invention. For the helmet according to the present invention, measurements were also conducted with the shutter closed and with it opened. Table 2 shows the results of experiments conducted on the helmet according to the present invention during actual running, and the continuous running speed was 25.
Km/h, once each for 5 minutes and 10 minutes at a temperature of 15°C, and once for 5 minutes in a headwind. In this example, measurements were also made with the shutter closed and with it open.

【table】

[Table] As is clear from Tables 1 and 2, there is a clear difference in temperature rise compared to the conventional example. Furthermore, during actual driving, when the shutters are closed, the temperature inside the helmet increases, but when the shutters are opened, the temperature decreases, indicating that there is a ventilation effect. In the above embodiment, the recess formed in the inner shell material 4 has a conical cross section, but the recess may have a rectangular or semicircular cross section, which can ensure air permeability and improve the relationship between the inner shell material 4 and the outer shell material. Any shape suitable for bonding may be used. Furthermore, although a cap-type helmet equipped with a ventilator has been described, the present invention can be suitably applied to various helmets such as a full-face helmet. [Effects of the invention] In the present invention, a predetermined number of recesses with air holes are formed in the inner shell material, and the bottoms of the recesses and the outer shell material are joined, and the outer shell material and the inner shell material A gap is formed between them, and this gap is used as an air passage to send air flowing in from the air outlet to the head side through a predetermined number of recesses in the inner shell material in which air holes are bored.
Furthermore, by discharging air from the air outlet through this gap, ventilation is ensured.
It has good breathability and can be worn without hesitation even in the summer. In addition, since the cap shell is composed of only the outer shell material and the inner shell material, the number of products can be reduced, and the outer shell material and the inner shell material can be integrally molded by sheet blow molding. Therefore, manufacturing can be simplified. As described above, according to the present invention, it is possible to obtain a helmet that secures shock absorption performance, simplifies manufacturing, and has good ventilation and comfortable ventilation when worn.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a helmet according to the present invention. 1... Cap shell, 3... Outer shell material, 4... Inner shell material, 5... Gap, 6... Recess, 7, 10... Air hole, 8... Air inlet, 9... Air outlet , H...Helmet (cap type helmet).

Claims (1)

[Scope of utility model registration request] A cap shell is formed by forming a gap inside an outer shell material and arranging an inner shell material, and an air inlet is formed on the front side of the cap shell, and an air outlet is formed on the rear side of the cap shell so as to communicate with the gap. In the helmet,
The cap shell is integrally molded by sheet blow molding using a hard resin material as an outer shell material and a soft resin material as an inner shell material, and the inner shell material has a predetermined number of air holes bored therein. 1. A helmet equipped with a ventilator, characterized in that a recess is formed and the bottom of the recess is joined to the outer shell material.