JPH0616888Y2 - Head ventilation for helmets - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a ventilation system capable of adjusting the amount of outside air flowing into the inside of the helmet cap body, and in particular, a head bench mounted in front of the upper part of the cap body. Related to the structure of the air intake of the station.

[Prior Art] Conventionally, some helmets used when riding a motorcycle or the like are provided with an opening for introducing outside air into the helmet so that the head does not get damp when the helmet is worn. In addition, in order to adjust the inflow of outside air, there is an air intake provided on the front side of the head so that it can respond to changes in the surrounding conditions such as running in the rain. Such a ventilation is generally composed of a base mounted on the cap body and having an opening, a cap slidably mounted on the base, and the like.
For example, the technique proposed in Japanese Utility Model Laid-Open No. 62-194727 is to give an appropriate click feeling when the cap is slid on the base. According to this proposed technique, sliders having free ends are provided at both ends of a cap, the sliders are fitted in guide grooves provided in a base, and the cap is slid up and down along the guide grooves. . A protrusion is provided on either the slider or the guide groove of the base in order to give a click feeling when sliding. Further, a knob is provided at the center of the lower end of the rear surface of the cap to facilitate the sliding operation of the cap, and the knob also serves as a stopper for the upward movement of the cap.

[Problems to be Solved by the Invention] Like the technique proposed in Japanese Utility Model Laid-Open No. 62-194727, when a protrusion is formed to give a click feeling when the cap slides, a guide groove portion or a base portion is formed. In either case on the slider side, the protrusions are formed at both left and right ends. Since there are protrusions on both the left and right sides in this way, for example,
When the projection 70 is provided in the guide groove of the base 76 as shown in the figure, when the cap 75 slides,
When a force is applied to one of the left and right sides, one slider 72a may be located above the protrusion 70 and the other slider 72b may be located below the protrusion. That is, as shown in FIG.
Is inclined with respect to the base 76 and cannot slide smoothly, which may make it difficult to adjust the air inflow amount.

Further, when the cap 75 is attached to the base 76, it is necessary to forcibly deform the cap 75 in order to fit the sliders 72a and 72b into the guide groove of the base 76. Moreover, in the guide groove, a protrusion is formed. Since the portion 70 exists, it must be fitted to avoid this, and there is a problem in that it is extremely difficult to mount it. Further, since the knob 78 is projected at the center of the lower end of the rear surface of the cap 75, it is necessary to provide a notch in the lower center of the base so that it does not hit the base 76 when the cap 75 slides. There was also a problem that a section could not be established.

[Means for Solving the Problems] The head ventilation for a helmet according to the present invention is
In a head ventilation for a helmet having an air inlet mounted on the cap body for adjusting the amount of outside air flowing into the cap body of the helmet, the air inlet has an opening mounted on the cap body. The base includes a base, a cap that slides with respect to the base and can close the opening at a predetermined slide position, and a stopper that is sandwiched between the base and the cap body. At least two depressions are formed vertically on the central portion of the stopper, and the base has a notch and a through hole for slidably fitting the L-shaped protrusion of the cap. A protrusion is formed near the center, the protrusion formed on the stopper penetrates the through hole of the base, and the tip of the protrusion is formed on the cap. Those configured to be able to fit only.

[Operation] Therefore, when the cap slides up and down on the base surface, the protrusion provided in the central portion of the stopper is located on the back surface of the cap between at least two recesses formed between the recesses. In the meantime, the cap is elastically deformed, and when the protrusion matches the position of the depression, the elasticity of the cap restores the original shape. That is, by forming the depressions at a plurality of positions in the vertical direction, the position of the cap is regulated, and at that time, an appropriate click feeling can be obtained.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

1 to 6 show an embodiment of a head ventilation for a helmet according to the present invention.

FIG. 1 shows the appearance of a helmet, in which an air intake 2 for head ventilation is provided on the upper front surface of a cap body 1 made of glass fiber reinforced plastic or the like. FIG. 2 is an enlarged cross-sectional view of the air intake 2 taken along the line I-I of FIG. 1. The air intake 2 includes a cap 3, a base 4 and a stopper 5.

On both sides of the back surface of the base 4, rod-shaped mounting legs 8 extending in the direction of the cap body 1 are integrally formed with the base 4, and the mounting legs 8 corresponding to the mounting legs 8 are formed to penetrate the cap body 1 in advance. It is inserted into the hole, the tip is projected to the inside of the cap body 1, and the protruding portion is fixed on the cap body 1 by ultrasonic caulking or the like. Further, three openings 12 are formed in the lower half of the base 4, and these openings 12 are fitted with through holes formed in the cap body 1 in advance and communicate with the ventilation passages 10 formed in the liner 11. ing.

A stopper 5 is simply held between the base 4 and the cap body 1 without using any special fixing means, and a protrusion 6 is formed on the base 4 in advance so as to project substantially at the center of the stopper 5. The front end is slightly projected forward through the through hole 9 formed.

The cap 3 is combined with the base 4 as described later,
By sliding in the vertical direction, the amount of air flowing in from the opening 12 can be adjusted.
When the opening 12 is closed and when the opening area is made appropriate, the tip of the projection 6 fits into the recess 7 formed on the back surface of the cap 3. In this way, depending on the position of the cap 3, the protrusion 6 fits into the recess 7 or the cap 3 does not fit.
A click feeling can be obtained by pressing.
FIG. 3 is an assembly view of the air intake 2. As shown in this figure, a small-diameter through hole 9 is formed in the upper center portion of the opening 12 in the base 4 in addition to the opening 12, and the left and right sides of the opening 12 are elongated vertically. A notch 13 is provided. A wide notch 13a having a slightly wider notch is formed above the notch 13. on the other hand,
L-shaped protrusions 1 are provided on the bottom of the left and right ends of the back surface of the cap 3.
4 are provided so as to project, and the tip ends thereof form bent portions 15 that bend toward the center side. Also, the stopper 5 has
The projecting portion 6 is formed substantially in the center, and the rectangular parallelepiped columnar body 16 projecting toward the base side by the plate thickness is integrally formed at both left and right ends. The pillar 16 has an appropriate shape that fits into the wide cutout 13a of the base 4, as described later. Next, the assembly of the air intake 2 having the above configuration will be described. As an assembling procedure, first, the cap 3 is attached to the base 4 from the front and slid downward, and then the stopper 5 is incorporated from the rear (back surface) of the base 4. That is, the cap 3 has the L-shaped protrusion 1
4 is inserted into the notch 13 of the base 4 and the base 4 is gripped. At the upper part of the notch 13, there is a wide notch 13a formed to have an appropriate width as described above. The cap 3 can be easily attached to the base 4 by inserting the character-shaped protrusion 14. Next, the stopper 5 is incorporated so that the protrusion 6 penetrates the hole 9 formed in the base 4. At this time, the pillars 16 formed at both ends of the stopper 5 are fitted into the positions of the wide cutout portions 13a of the cutouts 13, whereby the cap 3 is
It is possible to prevent separation from the base 4.

Further, the operation of the air intake 2 having the above structure will be described. 4 and 5 are plan views seen from the back surface (cap body side) when the cap is lowered to the lowermost end and raised to the uppermost end, respectively, and FIG. 6 shows a state in the middle thereof. Show.
When the cap 3 is at the lowermost end as shown in FIG. 4, the opening is closed. At this time, the lower surface of the L-shaped protrusion 14 abuts on the lowermost end surface 13b of the notch 13, and the tip of the protrusion 6 provided on the stopper 5 is one of the recesses 7 formed on the back surface of the cap 3. Fit into the top recess. Fifth
As shown, when the cap 3 is at the uppermost end, the opening 1
2 is in a fully open state. At this time, the bent portion 15 of the L-shaped projection portion 14 abuts on the lower surface 5a of the end portion of the stopper 5 to restrict the cap 3 from sliding upward, and at the same time, the projection 6 is at the bottom. The cap can be fitted in the recess to allow the cap to rest at that position. As described above, since the columnar body 16 of the stopper 5 is fitted in the wide cutout 13a, even if the cap slides to this position, there is no risk of the cap coming off the base. Further, as shown in FIG. 6, the cap 3 can be stopped at an intermediate position by fitting the protrusion 6 into the intermediate recess. Then, each time the protrusion 6 is fitted into the depression 7, a click feeling is obtained. Further, as described above, since the position of the cap 3 is restricted by the L-shaped protrusions 14 provided at both ends, it is possible to secure a sufficient area for the air intake port.

[Effect of the Invention] In the helmet ventilation according to the present invention, the stopper is provided with the protrusion, while the back surface of the cap is formed with a plurality of depressions at appropriate positions in the vertical direction corresponding to the protrusion. A click feeling is obtained by the protrusions moving in and out of the depressions. Then, since the position of the cap can be stopped by fitting the protrusion into the recess, it is possible to appropriately adjust the inflow amount of outside air. Further, when attaching the cap to the base, it is sufficient to simply insert the L-shaped projections into the cutouts formed on the left and right of the base, and at that time, it is not necessary to forcibly deform the cap or the base for insertion. Similarly, when assembling the stopper, it suffices to simply assemble the stopper so that the protruding portion of the stopper penetrates the hole previously formed in the base, and the assembling can be extremely easy.

[Brief description of drawings]

1 to 6 show an embodiment according to the present invention. FIG. 1 is an external view of a helmet, and FIG. 2 is I of FIG.
-I sectional view, FIG. 3 is an assembly view of main parts, FIGS. 4 to 6 are plan views seen from the cap side, FIG. 4 is a state in which the opening is closed, and FIG. 5 is the opening. Is a fully opened state, FIG. 6 is an intermediate state thereof, and FIG. 7 is a conventional example showing a state in which the cap is inclined. 1 ... Cap body, 2 ... Air intake port 3 ... Cap, 4 ... Base, 5 ... Stopper, 6 ... Projection part, 7 ... Dimple, 12 ... Opening part, 13 ... Notch, 13a ...... Wide notch, 14 …… L-shaped projection, 15 …… Bending, 16 …… Column.

Claims (1)

[Scope of utility model registration request] 1. A head ventilation for a helmet, comprising an air inlet mounted on the cap body for adjusting an amount of outside air flowing into the cap body of the helmet, wherein the air inlet is mounted on the cap body. A base having an opening, and a cap that slides with respect to the base and can close the opening at a predetermined slide position,
The cap includes a stopper sandwiched between the base and the cap body, the cap has L-shaped protrusions at the lower ends of both ends, and at least two recesses are formed vertically in the center, and the base is the cap. A notch for slidably fitting the L-shaped projection and a through hole are formed, and a protrusion is formed near the center of the stopper. The protrusion formed on the stopper penetrates the through hole of the base. In addition, the head ventilation for a helmet is characterized in that the tip of the projection is formed so as to be able to fit into the recess formed in the cap.