JP2944446B2 - Helmet ventilation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet ventilation system provided with an air in / out switching means near the top of a shell.

[0002]

2. Description of the Related Art Air-in / out switching means is rotatably mounted on the top of a shell, and is turned so that an opening is directed forward or backward. The air inside the helmet from the top of the helmet to the outside,
What improves ventilation efficiency is publicly known (Japanese Utility Model 6-4)
06).

[0003]

By the way, in the case of the above-mentioned prior art, since the air in / out switching means protrudes above the shell,
Wind noise may increase. In addition, it is necessary to operate the head by groping to rotate the air in / out switching means. For this reason, if priority is given to operability, the protrusion amount must be increased in order to make it easy to grasp by hand,
Design constraints increase. Further, by rotating the shell, the coating around the air inlet / outlet switching means at the top of the shell is performed.
There is a problem that the instrumentation surface is easily scratched. The present invention solves such a problem.

[0004]

In order to solve the above-mentioned problems, a ventilating device for a helmet according to the present invention comprises a rigid shell and a front shutter provided at a front portion of the shell, which is capable of opening and closing front outside air. A mouth, a top opening provided near the top of the shell, and a communication between the inside and the outside via the top opening, and switching between introduction of outside air into the helmet and discharge of air from the inside of the helmet to the outside. In a ventilator for a helmet provided with a top air in / out switching means provided near a top of a shell, the air in / out switching means includes a base fixed to the shell and an intermediate portion supported by a fulcrum at an intermediate portion with respect to the base in the front-rear direction. The lid between the lid and the base is long, and the space between this lid and the base is opened rearward by closing the front end of the lid. An exhaust state that, by closing the rear end of the lid, characterized in that it is a switchable selective for the introduction state of being opened toward the front.

[0005]

When the lid of the air in / out switching means is swung while the front shutter is open, and the front end thereof is moved upward,
Since the front of the air in / out switching means is opened and the rear is closed, the traveling wind is introduced into the helmet from both the front outside air inlet on the forehead side and the top opening, and the entire helmet is ventilated. . At this time, the lid functions as an air introduction plate.

When the front end of the lid is lowered with the front shutter open, the front of the air in / out switching means is closed and the rear is opened, so that the traveling wind is introduced into the upper part of the helmet from the front outside air inlet. The air is ventilated, and the air exits from the top opening through the air in / out switching means. For this reason,
Smooth ventilation in the upper part of the helmet improves ventilation in this area, and since the lid functions as a flow straightening plate, wind noise is also reduced.

Further, when the rear side of the air in / out switching means is opened with the front shutter closed, the hot air in the helmet can be removed, and the front side of the air in / out switching means is closed, so that the rainwater can be seen from the front. This is convenient when traveling in rainy weather because there is no danger of entering.

In addition, since the lid is of the seesaw type, it can be easily operated even by groping, and is excellent in operability. In addition, the thickness can be reduced and the protrusion amount can be reduced, so that design restrictions are reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment constructed as a jet type helmet will be described with reference to FIGS. FIG. 2 is a side view of this helmet. A front shutter 2 is provided at the front of a rigid shell 1 so as to be openable and closable, and an air in / out switching means 3 is provided near the top of the shell 1.

In the drawing, reference numeral 4 denotes a shield, 5 denotes a center axis of its rotation, 6 denotes a point indicating a substantially middle point in the front-rear direction in a side view on a line passing through a reference plane (JIS term). A reference point located immediately below the part (top), 7 is a chin band, and 8 is a rivet for mounting the chin band, which is located near an ear when worn.

FIG. 1 is a diagram showing the upper part of the helmet in FIG. 2 partially cut away. A bowl-shaped liner 10 made of a cushioning material such as styrene foam is fitted inside the shell 1, and a front outside air introduction passage 11 penetrating in the front-rear direction is formed at a front portion thereof. And the internal space 12.

A top pad 13 is provided inside the liner 10 (inside the helmet, the same applies hereinafter), and the rear half of the liner 10 is a thin portion 14, which is close to the step between the top pad 13 and the front half. An opening 15 is provided at a position slightly shifted rearward from the center. One opening end 16a of a top ventilation path 16 that penetrates the liner 10 obliquely in the up-down direction is connected to the opening 15.

The top air passage 16 extends obliquely upward and forward through the shell 1 and has the other open end 17 at the top of the shell 1 at the top.
Communicates with the top side opening 18 formed at the bottom. The top opening 18 is located at a position covered by the air in / out switching means 3.

The air in / out switching means 3 is shown in a plan view in FIG.
As shown in FIG.
It consists of a base 20 and a lid 21 and is attached to the surface of the shell 1 with an adhesive tape 22.

A positioning projection 24 is formed in the middle of the bottom 23 of the base 20 and is formed in the shell 1 in advance and fits into the recess 19 (FIG. 1). Are integrally formed. One end of the cylindrical portion 25 is open to the bottom portion 23, and communicates the top air passage 16 with the outside air.

5 to 8 show the base 20 and its details, and FIGS. 9 to 12 show the lid 21 and its details. As is apparent from these figures and FIGS. 3 and 4,
The base 20 has a curved bottom 2 along the outer surface of the shell 1.
3 and a side wall 26 standing on both sides thereof and extending long in the front-rear direction.

The bottom 23 has a shape that widens rearward, and the front half forms a step 27 with which the tip abuts when the lid 21 is closed. The lateral width of the side wall portion 26 also increases toward the rear, and the height increases toward the rear, forming a wedge shape in a side view (FIG. 6). Also,
The base 20 stands upright and opposed to each other so that the cross section of the base 20 has a substantially U-shape.
It is elastically deformable in six intervals.

As shown in FIG. 6, an inverted U-shaped shaft support groove 28 is formed at an intermediate portion between the positioning projection 24 of the left and right side wall portions 26 and the cylindrical portion 25. Further, click grooves 30 and 31 are formed in the upper and lower two stages at the rear portion from the center of the cylindrical portion 25 of the left and right side wall portions 26. The upper edge of the lower click groove 31 is lowered rearward in a side view.

As is apparent from FIG. 7, these click grooves 30 and 31 are also formed by the upper and lower dies 29a and 29b which are matched from above and below except for the part corresponding to the partition part 32.
Is formed in the thick part. Similarly, as shown in FIG. 8, the shaft supporting groove 28 is also formed in the thick part of the side wall part 26 by the joint part of the upper and lower dies 29a and 29b.

As shown in FIG. 10, the lid 21 has a wedge shape in which the closed side view is inclined forward and downward with respect to the traveling wind when viewed from the side. The lid 21 is pushed into the space between the left and right side walls 26 of the base 20 from above, whereby the side walls 26 are elastically deformed and fitted into the shaft supporting grooves 28. The symbol A in FIGS. 6 and 10 indicates the direction in which the upper and lower dies 29a and 29b are molded.

At the rear of the side surface of the lid 21 behind the support shaft 40, a click projection 41 which is long in the front-rear direction is formed to project laterally. The click protrusion 41 is provided in the click groove 30.
Alternatively, it can be selectively engaged with the click groove 31. The left and right rear ends 42 of the lid 21 are warped upward like a spoiler of an automobile. When the rear end is swung so as to approach the base 20, the lid 21 comes into close contact with the base 20 and the rear part of the base 20 and the lid 21. The opening on the side is closed.

As shown in FIG. 4, the top surface 43 of the lid 21 is formed so as to be substantially flush with the side wall portion 26 when the lid 21 is closed, and the front portion has a slope 44 facing the step portion 27. It has become. Left and right side portions 45 of lid 21
Is formed forward of the click projection 41.

When the lid 21 is attached to the base 20, the lid 21 swings about the support shaft 40, and when the click projection 41 engages with the click groove 30, the lid 21 is brought into the closed position and becomes the closed position.
Of the base 20 and the lid 21 closes between the front portions of the base 20 and the lid 21, and the rear end portion 42 is separated from the rear end of the base 20, so that an exhaust port 46 is formed between the rear portions of both members. It becomes an exhaust state.

When the lid 21 is swung and the click projection 41 is engaged with the click groove 31, the lid 21 becomes the open position,
When the front end of the slope 44 and the step 27 of the base 20 are separated from each other, the space between the two members is opened to form an inlet 47 surrounded by both members and the left and right side walls 26, and at the same time, the rear end 4
2 is brought into contact with the rear end of the base 20 to seal the rear.

Next, the operation of this embodiment will be described. In FIG. 1, when the lid 21 of the air in / out switching means 3 is set in the exhaust state (solid line state in FIG. 1) with the front shutter 2 opened, the air enters the internal space 12 from the front outside air introduction passage 11 through the front shutter 2. The traveling wind changes the upper part of the internal space 12.
After air enters from the open end 15 to the apex vent passage 16, and is discharged from an exhaust port 46 formed in the air and out switching means 3 rear through the tubular portion 25 to the outside air.

At this time, the lid 21 has a wedge shape in a side view with respect to the traveling wind, and since the slope 44 closes between the base 20 and the lid 21, the traveling guided between the left and right side wall portions 26. The wind flows backward on the top surface 43 along the slope 44, and the top surface 43 has a rectifying effect. Therefore, the noise of the wind noise during traveling is also reduced.

At the same time, since the exhaust port 46 is located on the rear side of the rear end portion 42, a suction effect is produced by negative pressure.
Air can be quickly sucked from the internal space 12. Therefore, the ventilation in the upper part of the internal space 12 can be made smooth to increase the ventilation efficiency.

If the rear end 42 is pushed to reverse the inclination of the lid 21, the lid 21 is brought into the introduced state (the state shown by the phantom line in FIG. 1), and the traveling wind is reduced to the front of the front shutter 2 and the front of the air in / out switching means 3. And the top can be simultaneously introduced into the internal space 12. Therefore, a large amount of outside air can be introduced into the internal space 12, and the cooling efficiency of the internal space 12 can be increased.

At this time, the lid 21 is connected to the inlet 47.
And the rear end portion 42 is in close contact with the base 20, so that it functions as a baffle plate, and the traveling wind that has entered between the left and right side wall portions 26 is efficiently ventilated from the inlet 47 through the cylindrical portion 25 to the top portion. Introduced to road 16. In addition, the flow of the introduced air is further smoothed because the top ventilation path 16 is in the shape of a slanted pile falling downward.

When the vehicle is running on rainy weather, the front shutter 2
When the introduction port 47 is closed, since the exhaust port 46 is open, the internal space 12 communicates with the outside air via the top ventilation path 16 and the exhaust port 46. For this reason, the air in the internal space 12 is easily discharged to the outside air with the help of the suction effect at the exhaust port 46, so that the hot air which tends to stay in the internal space 12 can be satisfactorily discharged. At this time, care is taken so that rainwater hardly enters between the lid 21 and the base 20 by the tip of the slope 44 abutting on the step portion 27.

In addition, since the lid 21 is of a seesaw type, the switching operation can be easily performed even by groping, so that operability is good. In addition, since the amount of protrusion can be reduced, design restrictions are also reduced. Further, since the base 20 has a fixed structure, there is no danger that the painted surface of the shell 1 will be peeled off by opening and closing operations.

Next, a second embodiment constructed as a full-face type helmet will be described with reference to FIGS. In this embodiment, the only difference is that the helmet is of a full-face type and that the mounting position is slightly changed by using a plurality of air in / out switching means 3. Therefore, the common points are denoted by the same reference numerals, and the differences are described. Stop only.

FIG. 13 shows a side view of the external appearance of the helmet, FIG. 14 shows the liner 10 from the rear (in the direction of arrow R in FIG. 13), and FIG. 15 shows the liner 10 from below (in the direction of arrow D in FIG. 13). FIG.

In these figures, the air-in / out switching means 3 having the same structure as in the previous embodiment is provided as a pair at a position slightly shifted rearward and left and right from the center line of the crown. A pair of top air passages 16 communicate with each air in / out switching means 3. Each of the top ventilation passages 16 is formed to penetrate the liner 10 at an inclination such that it rises rearward and opens sideward as it goes upward.

In FIG. 13, reference numeral 50 denotes a front lower shutter provided on the chin guard 51, and reference numeral 52 denotes a chin guard side exhaust port. With this configuration, the front shutter 2
By opening the front lower shutter and setting the air in / out switching means 3 to the exhaust state, the outside air introduced into the helmet from the upper and lower front can be smoothly exhausted from the air in / out switching means 3 to the outside.

At this time, if the air-in / out switching means 3 is set in the introduced state, outside air can be introduced from three directions, namely, the front and bottom, the top and the top, and the ventilation efficiency can be increased. Further, if the air inlet / outlet switching means 3 is exhausted with the front shutter 2 and the front lower shutter closed, the hot air trapped in the helmet from the two top air passages 16 can be discharged to the outside more smoothly.

The present invention is not limited to the above embodiments but can be applied in various ways. For example, three or more air in / out switching means 3 may be provided. Also, it is not always necessary to be the top of the helmet as long as it is in the vicinity of the top of the helmet where hot air trapped in the upper part of the helmet is easily discharged.

Further, the exhaust port provided in the lower rear portion of the ordinary helmet is not always necessary in the present invention. However, if provided, ventilation will be better. Also,
A fulcrum shaft for supporting the lid 21 may be provided on the base 20 side, and a concave portion for engaging this may be provided on the lid 21 side. Further, the tip side of the base 20 is connected to the slope 4
It is also possible to make the tip of the slope 44 directly contact the surface of the shell 1 by making it shorter than the four tips.

[0038]

The helmet ventilation device according to the present invention is
The air-in / out switching means is composed of a base fixed to the shell, and a lid supported at a middle portion of the base as a fulcrum and long in the front-rear direction and swingable in a seesaw manner. The space can be selectively switched between an exhaust state that is opened rearward by closing the front end side of the lid and an introduction state that is opened forward by closing the rear end side of the lid. .

Therefore, when the lid of the air in / out switching means is swung while the front shutter is open, and the front end thereof is moved upward, the front of the air in / out switching means is opened and the rear is closed. Wind can be introduced into the helmet from both the front outside air inlet on the frontal side and the top opening, and the entire helmet can be ventilated . At this time, the lid can function as an air introduction plate.

When the front end of the lid is lowered with the front shutter open, the front of the air in / out switching means closes and the rear opens, so that the traveling wind is introduced from the front outside air introduction port into the upper part of the helmet. The air can be ventilated here, and the air can be drawn out from the top opening through the air in / out switching means. For this reason, the ventilation inside the upper part of the helmet is
The ventilation can be improved, and the lid functions as a rectifying plate, so that wind noise can be reduced.

Further, when the rear side of the air in / out switching means is opened with the front shutter closed, the hot air in the helmet can be removed, and since the front side of the air in / out switching means is closed, rainwater flows from the front. This is convenient when traveling in rainy weather because there is no risk of entering.

Further, since the lid is of a seesaw type,
It can be easily operated even by groping, improving operability, and making it possible to reduce the thickness, so that the amount of protrusion can be reduced, and the design restrictions can be reduced. Also, the surface of the shell at the periphery of the air in / out switching means is less likely to be damaged.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of a first embodiment with a part cut away.

FIG. 2 is a side view of the first embodiment.

FIG. 3 is a plan view of air in / out switching means.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is a plan view of a base.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 6;

8 is a sectional view taken along line 8-8 in FIG. 6;

FIG. 9 is a plan view of a lid.

FIG. 10 is a sectional view taken along line 10-10 of FIG. 9;

11 is a sectional view taken along line 11-11 of FIG. 10;

FIG. 12 is a sectional view taken along line 12-12 of FIG. 10;

FIG. 13 is a side view of the second embodiment.

FIG. 14 is a view showing the liner of the second embodiment from the rear.

FIG. 15 is a view showing the liner of the second embodiment from below.

[Explanation of symbols]

1: shell, 2: front shutter, 3: air in / out switching means, 10: liner, 11: front outside air introduction passage, 12:
Internal space, 16: top ventilation path, 18: top side opening, 2
0: base, 21: lid, 40: support shaft, 41: click projection, 46: exhaust port, 47: introduction port

Claims (1)

(57) [Claims] 1. A shell having rigidity, a front outside air inlet which can be opened and closed by a front shutter provided at the front of the shell, a top opening provided near the top of the shell, and a top opening provided at the top of the shell. A helmet provided with a top air inlet / outlet switching means provided near the top of the shell for switching between introduction of outside air into the helmet and discharge of air from the inside of the helmet to the outside, while communicating between the inside and the outside of the helmet.
In the ventilator , the air in / out switching means includes a base fixed to the shell, and a lid that is supported at an intermediate portion with respect to the base and is disposed long in the front-rear direction and is swingable in a seesaw manner. The space between the bases is selectively switched between an exhaust state in which the front end side of the lid is opened rearward by closing the front end side, and an introduction state in which the rear end side of the lid is opened forward by closing the rear end side. A helmet ventilation device, characterized in that it is possible.