JPH0470408B2 - - Google Patents

Description

Detailed Description of the Invention A. Purpose of the Invention (1) Industrial Application Field The present invention has an opening that can be opened and closed by a shield plate supported by the cap body in the front part that covers the wearer's head. Regarding the helmet provided.

(2) Prior Art Conventionally, when such a helmet is used with the opening closed by a shield plate, the inner surface of the shield plate may become cloudy due to the breath of the wearer, which may impair visibility. In order to eliminate such inconveniences, for example, full-face helmets have already been proposed in which an exhalation guide member is attached to the helmet body to prevent the wearer's exhaled air from flowing toward the opening. 59-103719).

(3) Problems to be Solved by the Invention However, hot air and moisture tend to accumulate inside the shield plate, and it is not possible to simply prevent the wearer's exhaled air from flowing toward the shield plate as in the conventional method. , it is not possible to reliably eliminate fogging of the shield plate. Therefore, the present applicant fixed a guide plate to the cap body above the opening, which forms a ventilation gap between the cap body and the inside of the shield plate, and fixed the guiding plate to the cap body below the opening. A full-face helmet with air intake holes has already been proposed for the
62-124398, Utility Model Application Publication No. 64-30324), when riding with a helmet on, air is released from the exhaust port formed between the top of the guide plate and the cap body By attracting and discharging air, fresh air is circulated inside the shield plate to prevent the shield plate from fogging up.

By the way, when wearing a helmet,
It would be advantageous if the air between the wearer's head and the cap body could be efficiently ventilated, and if the air attraction effect of the guide plate was utilized, ventilation between the wearer's head and the cap body would also be possible.

The present invention has been made in view of the above circumstances, and provides a full-face helmet that can efficiently ventilate between the wearer's head and the cap body by utilizing the air attraction effect of the guide plate. The purpose is to

B. Structure of the Invention (1) Means for Solving the Problems The present invention provides a method for forming a ventilation gap in the front part of the cap body above the opening and communicating with the cap body inside the shield plate. The first aspect of the present invention is that a guide plate is provided, an air exhaust port is provided in the upper part of the guide plate, and a circulation hole is formed in the cap body above the opening to communicate the inside of the cap body with the ventilation gap. Features.

A second feature of the present invention is that the guide plate is provided with an introduction hole that can be opened and closed and faces the flow hole with a ventilation gap in between.

The present invention is applicable to both full-face and jet helmets.

(2) Effect According to the first feature described above, air is induced and discharged from the ventilation opening, which causes the air to circulate along the inner surface of the shield plate, thereby removing fogging from the shield plate, and at the same time, air is removed from the ventilation hole. Air is drawn into the gap to provide ventilation between the wearer's head and the cap body.

Further, according to the second feature, since the introduction hole provided in the guide plate and the communication hole provided in the cap body face each other, it is also possible to cause air to flow from the introduction hole to the communication hole.

(2) Embodiment An embodiment of the present invention will be explained below with reference to the drawings. First, in FIGS. 1, 2, and 3, this full-face helmet is mainly worn by the operator of a motorcycle. The cap body 1 that covers the wearer's head to below the chin is
It is composed of a shell 2 made of fiber-reinforced resin and a shock-absorbing liner 3 made of expanded styrene that is tightly fitted to the inner surface of the shell 2.

A top pad 4 made of flexible urethane foam is adhered to the ceiling surface of the shock absorbing liner 3, and the inner surface of the shock absorbing liner 3, excluding the ceiling surface and the area corresponding to the wearer's cheek, is covered with ventilation material such as terry cloth. A fit pad 5 covered with a cloth made of a material rich in elasticity is arranged in a polymerized manner. Further, a neck cover 6 formed in a half-moon shape and made of soft synthetic resin is fixed to the rear lower edge of the cap body 1 to cover the wearer's neck from the rear side. Furthermore, cheek pads 7 are disposed overlappingly on the inner surface of the shock absorbing liner 3 at a portion corresponding to the wearer's cheeks.

Referring also to FIG. 4, a chin cover part 1a is provided at the lower front of the cap body 1 to cover the chin of the wearer. is provided with an opening 8 through which the face of the wearer is exposed. Further, a shield plate 9 for opening and closing the opening 8 is supported by the cap body 1. That is, the shield plate 9 is
It is formed of a transparent synthetic resin such as polycarbonate into an arc shape that bulges forward in accordance with the front outer surface shape of the shell 2, and both ends thereof are rotatably connected to the shell 2 by screw members 10. supported. That is, a cover 11 is fixed to the shell 2 on both sides of the opening 8 by screw members 10 and 12, and both ends of the shield plate 9 are secured to the screw members 10 so as to be sandwiched between the cover 11 and the shell 2.
It is rotatably supported by.

A rectangular through hole 13 is bored in the shell 2 on the front surface of the chin cover part 1a, and a hole forming member 15 forming two pairs of air intake holes 14, one upper and lower, is provided in the through hole 13. Fitted and fixed. A shutter 16 that can open and close the upper and lower air intake holes 14 at the same time is supported on the hole forming member 15 so as to be vertically movable. By moving the
The opening degree of the air intake hole 14 can be freely changed.

Referring also to FIG. 5, a rubber edge member 18 is fitted around the entire circumference of the lower edge of the shell 2 of the cap body 1. This edge member 18 includes
A projecting portion 18a extending inward of the cap body 1 is integrally provided in the front half of the cap body 1 including the chin cover portion 1a.
Furthermore, the projecting portion 18a extends inward from the inner surface of the shell 2 in the chin cover portion 1a. On the other hand, a rubber edge member 19 is fitted around the entire circumference of the shell 2 forming the opening 8.

A passage 20 communicating with the air intake hole 14 is formed between the inner surface of the shell 2 in the chin cover part 1a and the shock absorbing liner 3, and the upper end of this passage 20 faces the lower edge of the opening 8. It is opened. An exhalation guide member 21 is removably fitted into the upper open end of the passage 20. The exhalation guide member 21 prevents the wearer's exhalation from directly hitting the inner surface of the shield plate 9, and also allows the air introduced into the passage 20 to flow upward along the inner surface of the shield plate 9. The main body 21a is formed in a half-moon shape that bulges upward to cover the wearer's nose, and the main body 21a is inserted between the shell 2 and the shock absorbing liner 3 at the lower edge of the opening 8. an insertion protrusion 21b protruding downward from the front end of the main body 21a to be fitted into the passage 20 along the rear surface at the upper end opening of the passage 20;
and a fitting protrusion 21c protruding downward from the
It is integrally molded from flexible synthetic resin.

The insertion protrusion 21b of this exhalation guide member 21
An engagement hole 22 is bored in the opening 8, and a protrusion 23 that fits into the engagement hole 22 is integrally provided on the edge member 19 attached to the periphery of the opening 8. Further, the main body 21 a of the exhalation guide member 21 is provided with a plurality of guide holes 24 communicating with the upper open end of the passage 20 . Moreover, the guide hole 24 is formed by forming the main body 21a in a lattice shape between the insertion protrusion 21b and the fitting protrusion 21c. It is possible to prevent the guide hole 24 from being crushed in the state where it is fitted.

A plurality of discharge holes 25 opening toward the rear side are bored in both sides of the rear side of the shell 2, and the shock absorbing liner 3 is provided with a plurality of discharge holes 25 that open the inside of the cap body 1 through the discharge holes 25.
A pair of passage holes 26 are bored to communicate with each other.

Referring to FIGS. 6 and 7 together, a guide plate 28 is fixed to the front part of the shell above the opening 8 and forms a ventilation gap 27 between the guide plate 28 and the shell 2. As shown in FIG. The guide plate 28 is formed in an arc shape corresponding to the front surface of the shell 2, and its both ends are fixed to the shell 2 on both sides of the opening 8 by screw members 29. On the other hand, the edge member 1 fitted to the periphery of the opening 8
A substantially U-shaped fitting portion 30 opening upward for fitting the lower end of the guide plate 28 is provided on the upper portion of the edge member 19 , and a fitting portion 30 in the shape of a U-shape is provided on the upper portion of the edge member 19 on the inner side of the shield plate 9 . A plurality of ventilation holes 31 are provided to communicate the inside of the cap body 1 with the ventilation gap 27. Furthermore, a pin 47 is bored on the back surface of the guide plate 28, and this pin 47
is fitted into a positioning hole 48 formed on the outer surface of the shell 2. Moreover, the upper end edge of the guide plate 28 is in close contact with the outer surface of the shell 2 when it is fixed to the cap body 1 in this manner.

Two pairs of rectangular air introduction holes 32 are bored in the center of the guide plate 28 near the lower end, and a support section 33 is provided extending vertically between the two pairs of introduction holes 32. A shutter plate 34 supported so as to be vertically movable is disposed along the inner surface of the guide plate 28 so as to be vertically movable in order to adjust the opening degree of each introduction hole 32. That is, the shutter plate 34 is in sliding contact with the inner surface of the guide plate 28, and the cover member 35 that penetrates the support portion 33 and projects forward is attached to the shutter plate 34.
It is installed integrally with the Therefore, this cover member 35
is supported by the support portion 33 so as to be vertically movable.

A pair of communication holes 36 are bored in the shock absorbing liner 3 at positions corresponding to the support portions 32, and a pipe member 37 connected to the communication holes 36 is fitted into the shell 2. Thereby, the inside of the cap body 1 communicates with the ventilation gap 27 via the communication hole 36 and the pipe member 37.

A gutter portion 38 is provided at the upper end of the edge member 19 within the ventilation gap 27 so as to be located above the ventilation hole 31. This gutter portion 38 is bent into a substantially L-shape to receive rainwater flowing down the surface of the shell 2.

A recessed part 40 is provided in the upper center of the guide plate 28, and this recessed part 40 has a pair of exhaust ports 41 arranged vertically near the center thereof, and a pair of exhaust ports 41 arranged vertically close to the center thereof.
1 are provided with exhaust ports 42 extending vertically, respectively, and these exhaust ports 41 and 42 communicate with the ventilation gap 27. Further, an opening/closing plate 43 is fitted into the recess 40 , and a pair of engagement protrusions 44 are provided at the lower end of the opening/closing plate 43 to engage with the lower edges of both air exhaust ports 41 .
is drilled. By engaging each engagement protrusion 43 with the lower edge of the exhaust port 41 in this way, the opening/closing plate 4
3 can be opened and closed using its lower end as a fulcrum. Furthermore, the opening/closing plate 43 is integrally provided with engaging arms 45 that are slidably fitted into the respective exhaust ports 42 , and the ends of these engaging arms 45 are engaged with the inner peripheral edge of the exhaust ports 42 . A mating pawl 46 is integrally provided. Therefore, the opening/closing plate 43 is rotatable between a fully open position where the claw 46 engages with the inner surface of the edge of the exhaust port 42 and a fully closed position where the opening/closing plate 43 abuts the bottom of the recess 40. The intermediate position between the two positions is held by the frictional force between the engaging arm 45 and both side edges of the exhaust port 42.

Next, to explain the operation of this embodiment,
Assuming that you are riding a motorcycle or the like while wearing this full-face helmet, open the opening/closing plate 43 and open the exhaust ports 41 and 4 as shown in FIG. 7(a).
2 is opened and the shutter plate 34 is closed, negative pressure is generated in the ventilation gap 27 due to the air drawn out from the exhaust ports 41 and 42 due to the running wind, and this negative pressure leads to the inside of the shield plate 9. The vented air flows into the ventilation gap 27 through the ventilation hole 31 and is further discharged to the outside through the exhaust ports 41 and 42. Moreover, the air inside the cap body 1 is drawn to the ventilation gap 27 through the circulation hole 36 by the negative pressure in the ventilation gap 27, and this air is also drawn and discharged from the ventilation gap 27 to the outside through the exhaust ports 41 and 42.

Therefore, steam and moisture are sucked inside the shield plate 9, rise, and are discharged from the exhaust ports 41 and 42, and hot air and moisture between the cap body 1 and the head when worn are also discharged. ventilation is carried out effectively. Further, when the air intake hole 14 is open, fresh air is guided inside the shield plate 9, so that the shield plate 9 is effectively prevented from fogging. Moreover, since the exhaled air when worn is prevented from directly hitting the shield plate 9 by the exhaled air guide member 21, the shield plate 9 can be prevented from fogging more reliably.

Furthermore, since the exhalation guide member 21 has a guide hole 24 and is fitted to the upper end of the passage 20, fresh air can flow inside the shield plate 9 while ensuring the circulation area of the passage 20. can be reliably supplied.

Next, as shown in FIG. 7b, when the introduction hole 32 is opened with the opening/closing plate 43 in the open position, the fresh air introduced from the introduction hole 32 passes through the circulation hole 36 to the cap body. 1, flows between the wearer's head and the cap body 1, and is led out from the exhaust hole 25, so that ventilation between the wearer's head and the cap body 1 can also be performed. can. Moreover, at this time, there is still an upward air flow in the ventilation gap 27, and the air that has risen inside the shield plate 9 passes through the ventilation gap 27 and flows to the exhaust port 4.
It is discharged from 1,42.

By the way, with the air exhaust ports 41 and 42 open in this manner, it is inevitable that rainwater will enter into the ventilation gap 27 when the vehicle is running in the rain. However, since the gutter portion 38 is provided at the upper end of the edge member 19, the rainwater that has entered is received by the gutter portion 38 and flows to both sides of the opening portion 8. Therefore, it is possible to reliably prevent rainwater from entering the cap body 1 through the opening 8. Moreover, since the gutter portion 38 is provided above the ventilation hole 31, the gutter portion 38 is provided above the ventilation hole 31.
1 is avoided, and a sufficient circulation area of the ventilation hole 31 can be ensured. Further, by providing the ventilation hole 31 in the edge member 19, it is possible to prevent the ventilation hole 31 from collapsing, thereby ensuring a sufficient circulation area of the ventilation hole 31 to allow air for ventilation. can be secured at all times.

In order to prevent air from flowing inside the shield plate 9 during cold weather, it is sufficient to close the opening/closing plate 43 as shown in FIG. 7c, and then the exhaust ports 41 and 42 are closed. Therefore, no negative pressure is generated in the ventilation gap 27, and therefore no air flows inside the shield plate 9.

In addition, when ventilating between the wearer's head and the cap body 1 with the opening/closing plate 43 closed, the introduction hole 32 is opened with the shutter plate 34 as shown in FIG. 7d. OK, then the introduction hole 3
Since the fresh air introduced from 2 is introduced into the cap body 1 through the circulation hole 36, sufficient ventilation can be achieved between the wearer's head and the cap body 1.

Furthermore, an edge member 1 fitted to the lower edge of the shell 2
8 is provided with a projecting portion 18a extending inwardly of the cap body 1 at a portion corresponding to the chin cover portion 1a, and this projecting portion 18a minimizes the gap created between the wearer and the wearer's neck. This makes it possible to minimize noise caused by wind entrainment while driving.

C. Effects of the Invention As described above, according to the first feature of the present invention, above the opening, in the front part of the cap body, there is a ventilation gap that communicates inside the cap body inside the shield plate. A guide plate is provided, an air exhaust port is provided in the upper part of the guide plate, and a communication hole is provided in the cap body above the opening to communicate the inside of the cap body with the ventilation gap.
Air circulates along the inner surface of the shield plate to remove fogging from the shield plate, and air is drawn into the ventilation gap from the circulation holes to provide sufficient ventilation between the wearer's head and the cap body. be able to.

According to the second feature of the present invention, the guide plate is provided with an introduction hole that can be opened and closed and faces the flow hole with a ventilation gap in between, so that the introduction hole can be opened when the helmet is being worn. It becomes possible to introduce fresh air into the cap body by circulating the running wind from the introduction hole to the circulation hole, and it is possible to perform ventilation between the wearer's head and the cap body.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a view taken in the direction of the arrow in FIG. 1, and FIG.
The figure is an enlarged sectional view taken along the line - in Fig. 2, Fig. 4 is an exploded perspective view, and Fig. 5 is an enlarged sectional view taken along the - line in Fig. 2.
FIG. 6 is a cross-sectional view taken along the line -- in FIG. 3, and FIG. 7 is a cross-sectional view of a main part showing changes in air circulation depending on the opening/closing state of the exhaust port. 1... Cap body, 8... Opening, 9... Shield plate, 27
...Vent gap, 28...Guidance plate, 32...Introduction hole, 36
...Distribution hole, 41, 42...Exhaust port.

Claims (1)

[Scope of Claims] 1. In a helmet in which an opening that can be opened and closed by a shield plate supported by the cap body is provided in the front part of a cap body that covers the wearer's head, the front part of the cap body is located above the opening. The part is provided with a guide plate that forms a ventilation gap between the cap body and the inside of the shield plate, which communicates with the cap body, and an air exhaust port is provided in the upper part of the guide plate, and above the opening, the cap body A helmet characterized in that the ventilation gap is provided with a communication hole that communicates with the inside of the helmet body. 2. The helmet according to item 1, wherein the guide plate is provided with an introduction hole that can be opened and closed and faces the flow hole with a ventilation gap in between.