JPH0444589Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The present invention is a riding helmet used by a rider of a motorcycle, in particular, a visor is attached to the front wall of the cap body, and the visor is attached to the front wall of the helmet. This invention relates to an improvement in a helmet in which an air introduction hole opening inward is bored in the front wall of the cap body.

(2) Prior Art Conventionally, in riding helmets, in order to actively introduce the driving wind into the helmet for ventilation, a driving wind introduction path is formed in a visor attached to the helmet.
The rear end of this running wind introduction path is closed with a cap body, and
An air introduction hole opening into the introduction path is bored in the cap body,
A vehicle in which the dynamic pressure of the running wind acts on the air introduction hole is known (for example, see Japanese Patent Publication No. 63-23284).

(3) Problems to be solved by the invention However, in the helmet with the above structure, since the rear end of the visor's wind inlet path is closed, the dynamic pressure that the visor receives from the wind is large when the vehicle is running at high speed. If this happens too much, the visor may get stirred up, making it unsuitable for high-speed driving.

Therefore, in order to prevent the visor from being stirred up by the wind while driving, it is possible to open the rear end of the wind inlet path, but in this case, the wind will simply pass through the visor and enter the air introduction hole in the cap body. This makes it difficult for people to enter the country.

The present invention has been made in view of the above circumstances, and is designed to prevent the visor from being stirred by the wind while driving, while effectively allowing the wind to flow into the air introduction hole of the cap body. The purpose is to provide helmets.

B. Structure of the invention (1) Means for solving the problem In order to achieve the above object, the present invention forms a ventilation passage with both front and rear ends open between the cap body and the visor, and a vehicle running through this ventilation passage. It is characterized in that the cap body is provided with a guide wall that guides a portion of the wind to the air introduction hole.

(2) Effect In the above configuration, when the wind generated as the vehicle travels enters the visor, most of the wind flows out to the rear of the visor through the ventilation path, so the dynamic pressure of the wind that the visor receives is It is relatively low, so the visor will not be blown up by the wind.

Further, a portion of the traveling wind that has entered the ventilation passage is guided by the guide wall to the air introduction hole of the cap body.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, in Figures 1 and 2, helmet 1
The cap body 2 has a chin cover part 2a directly below the window hole 3 on the front side.
It is constructed of a full face type. A transparent shield plate 4 for opening and closing the window hole 3 and a visor 5 projecting forward from directly above the window hole 3 are detachably attached to the cap body 2.

Their mounting structure is shown in FIGS. 2 and 3.

In the figure, nuts 6, 6 are embedded in the left and right side walls of the cap body 2, and a support plate 7 is fixed to the center of the front wall with screws 8. This support plate 7 is integrally provided with a pin 9 protruding from its front surface. On the other hand, the visor 5 is provided with mounting holes 10, 10 at both left and right ends, and a support tube 11 is integrally bored into the inner surface of the center portion. Then, by fitting the support tube 11 into the pin 9 and screwing the screws 12, 12 passed through the mounting holes 10, 10 into the nuts 6, 6, the visor 5 is assembled.
is attached to the cap body 2.

Further, bosses 13, 13 surrounding the mounting holes 10, 10 are formed on the inner surface of the visor 5.
3 and 13 have support holes 14 at both ends of the shield plate 4,
14 is rotatably fitted (see FIG. 5). Therefore, the shield plate 4 is rotatable around the bosses 13, 13, and the window hole 3 can be opened and closed by the rotation.

The open position of this shield plate 4 is regulated by its upper end coming into contact with the support tube 11;
The support tube 11 is covered with a rubber buffer pipe 15 to reduce the impact upon contact. In order to maintain the shield plate 4 in the open and closed positions, the visor 5 and the shield plate 4 are respectively formed with protrusions 16 and recesses 17, 17' which resiliently engage with each other at those positions.

Furthermore, a clamping piece 18 is attached to the cap body 2 to elastically clamp the left and right edges of the shield plate 4 in cooperation with the cap body 2 when the shield plate 4 is in the closed position.

In FIG. 3, a ventilation passage 19 is formed between the visor 5 and the cap body 2, with both front and rear ends open. When a rider wearing this helmet 1 drives a motorcycle, the wind entering the visor 5 flows out to the rear of the visor 5 through the ventilation passage 19, so even when riding at high speed, the visor 5 It is not affected by the driving wind.

As clearly shown in FIGS. 2 to 4, the cap body 2
A pair of left and right air introduction holes 20, 20 are bored in the front wall of the cap body 2, the front ends of which open into the ventilation passage 19, and the rear ends of which open into the inner surface of the cap body 2, respectively. The support plate 7 includes a guide wall 2 that stands up along the upper half periphery of the front opening end of the air introduction holes 20, 20.
1 and 21 are integrally formed. In addition, the visor 5
is provided with an auxiliary inlet 22 that opens toward the lower surface of the guide wall 21. Therefore, a part of the traveling wind that enters the ventilation passage 19 from the front end side of the visor 5 or from the auxiliary entrance 22 is bent by the guide walls 21, 21 and guided to the air introduction holes 20, 20, and the cap body 2 Contributes to internal ventilation.

Again in FIG. 3, the cap body 2 has a shell 25
A buffer liner 26 made of expanded polystyrene fitted to the inner surface of the shell 25, a top pad 27 covering the ceiling surface of the buffer liner 26, and an inner circumference of the buffer liner 26 excluding the ceiling surface and the chin cover portion 2a. It consists of a fit pad 28 that covers the surface. The shell 25 is divided into an upper shell body 25A and a lower shell body 25B at the position of the chin cover part 2a. With the body 25A facing outside, several parts are bonded to each other by rivets 29. Shell upper body 25
A is molded from a thermosetting synthetic resin such as fiber-reinforced polyester, and the shell lower body 25B is
Injection molded from thermoplastic synthetic resin such as ABS.
By dividing the shell 25 into upper and lower parts in this manner, the shell 25 can be easily manufactured even if the lower opening is narrowed.

In FIGS. 3, 6, and 7, a distribution chamber 30 is defined in the center of the chin cover part 2a by a shell lower body 25B and a buffer liner 26, and the traveling wind is taken into this distribution chamber 30. An air intake port 31 with a screen is provided at the front of the lower shell body 25B. The buffer liner 26 also includes a distribution chamber 30.
A rectangular opening 32 is bored facing the
2, a synthetic resin grill 34 having a large number of through holes 33, 33, . . . is attached. This grill 34
A first flange portion 34a that contacts the rear surface of the buffer liner 26 around the opening 32, and a pair of left and right second flange portions 34 that contact the front surface of the buffer liner 26 within the distribution chamber 30.
a, 34b, and these first and second collar portions 34
A buffer liner 26 is sandwiched between a and 34b.
The grille 34 is thus attached to the buffer liner 26 and reinforces the periphery of the opening 32 in the liner 26.

Further, in the chin cover portion 2a, the shell upper body 25
A flat guide passage 35 extending from the distribution chamber 30 to the lower edge of the window hole 3 is defined between the buffer liner A and the buffer liner 26, and the edge rubber 36 is attached to the window hole so as to cover the upper opening of the guide passage 35. It is glued to the peripheral edge of 3. A plurality of blowholes 37, 37 communicating with the guide passage 35 are bored in the lower part of the edge rubber 36.

Therefore, the running wind flows from the air intake port 31 to the distribution chamber 3.
0, part of the running air flows into the grill 34.
enters the inside of the chin cover part 2a through the through holes 33, 33..., flows toward the tip of the user's nose or mouth,
This guides the person's exhaled breath backwards or downwards and encourages ventilation within the cap body 2. Further, the other air that has flowed into the distribution chamber 30 receives a rectifying action from the guide passage 35 while ascending, and is then jetted out from the plurality of blowholes 37, 37, so that the jetted air is not dispersed to the surroundings. It rises along the inner surface of the shield plate 4. In this way, it is possible to prevent the inner surface of the shield plate 4 from becoming cloudy due to the user's exhalation.

Finally, as shown in FIGS. 3 and 8, the cap body 2
A buffer liner 26 and a lower shell body 2 are provided on the rear wall.
A flat chamber 38 is formed between the chambers 5B, and an inner exhaust hole 39 and an outer exhaust hole 40 communicating with the chamber 38 at different levels are bored in the buffer liner 26 and the lower shell body 25B.

When a negative pressure is generated around the outer exhaust hole 40 due to the flow of running wind on the outer surface of the cap body 2, the air inside the cap body 2 is drawn to the inner exhaust hole 39 due to the suction effect of the negative pressure. Since the air flows out through the empty chamber 38 to the outer exhaust hole 40, ventilation inside the cap body 2 is promoted.

C. Effects of the invention As described above, according to the invention, a ventilation passage with open front and rear ends is formed between the cap body and the visor, and a part of the wind flowing through this ventilation passage is guided to the air introduction hole. Since the wall is provided on the cap body, most of the wind passing through the ventilation channel can prevent the visor from being stirred up, and a portion of the wind passing through the ventilation channel can be directed to the air introduction hole by the guide wall. ventilation within the cap body can be promoted by inducing

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of a riding helmet, FIG. 2 is an exploded perspective view of the same helmet, FIG. The figure is a cross-sectional view taken along the line - in Fig. 2, Fig. 5 is a cross-sectional view taken along the - line in Fig. 1, Fig. 6 is a sectional view taken along the - line in Fig. 3, and Fig. 7 is a view taken along the - arrow in Fig. 3.
FIG. 8 is a view taken along the arrows in FIG. 1... Helmet, 2... Cap body, 4... Shield plate, 5... Visor, 19... Ventilation duct, 20...
Air introduction hole, 21...guiding wall.

Claims (1)

[Scope of Claim for Utility Model Registration] A riding helmet in which a visor 5 is attached to the front wall of the cap body 2, and an air introduction hole 20 that opens inside the visor 5 is bored in the front wall of the cap body 2: A ventilation passage 19 with both front and rear ends open is formed between the body 2 and the visor 5, and a guide wall 2 guides a part of the traveling wind flowing through the ventilation passage 19 to the air introduction hole 20.
1 is provided on a cap body 2.