JPH0441135Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field This invention has a
The present invention relates to a helmet that is provided with an opening that can be opened and closed by a shield plate supported by the cap body, and in which an edge member is fitted to the edge of the opening.

(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 into 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. We have already proposed a full-face helmet with an air intake hole (Utility Application No. 124398/1983 (see Utility Model Application No. 30324/1983)), and with this one, you can ride with the helmet on. When the shield plate is in use, fresh air is circulated inside the shield plate to prevent the shield plate from fogging by attracting and discharging air from the exhaust port formed between the upper part of the guide plate and the cap body. However, an edge member is fitted to the edge of the opening, and the ventilation gap is communicated within the cap body through the gap between the edge member and the lower edge of the guide plate, and the gap is kept constant. Therefore, when the gap becomes narrow, it may not be possible to ensure a sufficient amount of air flowing along the inner surface of the shield plate.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a helmet that can ensure constant communication between the ventilation gap and the inside of the helmet body, thereby reliably preventing fogging of the shield plate. With the goal.

B. Structure of the invention (1) Means for solving the problem According to the invention, a guide plate is provided above the opening and at the front of the cap body to form a ventilation gap between the cap body and the guide plate. The upper part of the plate is provided with an air exhaust port, and the upper part of the edge member is provided with a fitting part into which the lower end of the guide plate is fitted, and a ventilation hole which communicates the ventilation gap with the inside of the shield plate into the cap body. provided.

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

(2) Effect According to the above configuration, the communication state of the inside of the cap body to the ventilation gap can be ensured by the communication hole, and the air is drawn and discharged from the ventilation opening, thereby causing the air to flow along the inner surface of the shield plate. The air circulates reliably and the fog on the shield plate is removed.

(3) 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 intended to be 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, except for 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 fabric 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 lower rear 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 a circular arc shape that bulges forward in accordance with the shape of the front outer surface 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 is provided in the through-hole 13 to form two pairs of air intake holes 14, one at the top and one at the bottom. 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. provided. Therefore, by photographing the photographing section 17 and moving it up and down, 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 allows the air introduced into the passage 20 to flow upward along the inner surface of the shield plate 9. It serves to prevent fogging,
The main body 21a is formed in a half-moon shape that bulges upward to cover the wearer's nose, and the lower edge of the opening 8 is provided to protrude downward from the front end of the main body 21a so as to be inserted between the shell 2 and the shock absorbing liner 3. Insertion protrusion 2
1b, and a fitting protrusion 21c that protrudes downward from the main body 21a to be fitted into the passage 20 along the rear surface of the upper end opening of the passage 20, and is integrally made of flexible synthetic resin. molded.

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 that is fitted around the periphery of the opening 8. Further, the main body 21a 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 2 above the opening 8 and forms a ventilation gap 27 therebetween. 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 upper part of the edge member 19 fitted to the periphery of the opening 8 is provided with a substantially U-shaped fitting part 30 that opens upward for fitting the lower end of the guide plate 28. A plurality of ventilation holes 31 are provided in the upper part of the shield plate 9 to communicate the inside of the cap body 1 with the ventilation gap 27 on the inner side of the shield plate 9 . Furthermore, a pin 47 is provided protruding from 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 shutter plate 34 is integrally provided with a photographing portion 35 that penetrates the support portion 33 and projects forward. The photographing section 35 is supported by the support section 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 introduction holes 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 recess 40 recessed inward is provided at the upper center of the guide plate 28 , and this recess 40 has a pair of exhaust ports 41 arranged vertically near the center, and a pair of exhaust ports 41 on both sides of the exhaust ports 41 . An exhaust port 42 extending vertically is provided, 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 that engage with the lower edges of both the exhaust ports 41 are provided at the lower end of the opening/closing plate 43 . In this way, each engagement protrusion 4
3 to the lower edge of the exhaust port 41,
The opening/closing plate 43 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 to the exhaust ports 42, respectively, and the ends of these engaging arms 45 are attached to the inner surface of the edge of the exhaust port 42. An engageable pawl 46 is integrally provided. Therefore, the opening/closing plate 43 has a claw 46.
a fully open position where the exhaust port 42 engages with the inner surface of the edge;
The opening/closing plate 43 can be rotated between a fully closed position in which it contacts the bottom of the recess 40, and an 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. Ru.

Next, to explain the operation of this embodiment, assuming that this full-face helmet is worn while traveling on a motorcycle or the like, the opening/closing plate 43 is opened and the exhaust ports 41, 42 are opened as shown in FIG.
When the shutter plate 34 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 the air is guided inside the shield plate 9 by the negative pressure. The 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, hot air and moisture are sucked inside the shield plate 9 and rise, and are discharged from the exhaust ports 41 and 42, as well as hot air and moisture between the cap body 1 and the wearer's head. 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 wearer's breath is prevented from directly hitting the shield plate 9 by the breath guiding 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 opening/closing plate 43 is kept in the open position and the introduction hole 32 is opened, 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 cap 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 invention, a guide plate is provided above the opening and at the front of the cap body to form a ventilation gap between the cap body and the guide plate. An air vent is provided, and the upper part of the edge member is provided with a fitting part into which the lower end of the guide plate is fitted, and a ventilation hole which communicates the ventilation gap with the inside of the shield plate into the cap body. It is possible to secure the circulation area of the shield plate, thereby reliably obtaining an upward air flow inside the shield plate, and to improve the anti-fogging effect of the shield plate.

[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. DESCRIPTION OF SYMBOLS 1... Cap body, 8... Opening part, 9... Shield plate, 19... Edge member, 27... Ventilation gap, 28...
...guiding plate, 30...fitting part, 31...ventilation hole.

Claims (1)

[Scope of utility model registration request] In a helmet, 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, and an edge member is fitted to the edge of the opening. Above the opening, a guide plate is provided at the front of the cap body to form a ventilation gap between the cap body and the guide plate. A helmet characterized by being provided with a fitting part into which the lower end of the plate is fitted, and a ventilation hole which communicates the ventilation gap with the inside of the shield plate and into the helmet body.