JPH0659432U - Helmet ventilation structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a ventilation structure for a helmet in which the discharge of the inside air of the helmet body is adjustable and easy to assemble [Configuration] The inside air of the helmet body 1 is discharged to the outside of the helmet body 1 A plurality of inside air circulation holes 7 are formed, and an outside air circulation body 11 is provided on the outer periphery of the helmet body 1, and an outside air flow passage 13 is formed in the outside air circulation body 11 between the outer periphery of the helmet body and the inside air circulation holes. 7 communicates with the outside airflow passage 13. The outside air circulation body 11 is provided with an opening / closing plate 20 via a knob 17 slidably attached. The opening / closing plate 20 is brought into contact with the outer periphery of the helmet body 1 and the inside air is circulated by the sliding movement of the knob 17. The hole 7 can be freely opened and closed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ventilation structure for a helmet.

[0002]

[Prior art]

 Conventionally, as a ventilation structure of a helmet, a plurality of inside air circulation holes for discharging the inside air of the helmet body to the outside of the helmet body are formed in the upper part of the helmet body, and an outside air circulation body is provided on the outer periphery of the upper part of the helmet body. An external airflow passage that opens in the front direction and introduces the external air from the front and discharges it to the rear is formed in the flow body with the outer circumference of the helmet body, and the internal air is sucked by the external airflow flowing in the external airflow passage. Therefore, there is one in which the inside air circulation hole is communicated with the outside airflow passage (see, for example, Japanese Utility Model Publication No. 1-209209).

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional type, since the inside air circulation hole is always open, the discharge of the inside air of the helmet body cannot be adjusted, and the warmed inside air is discharged in some cases, so that comfortable ventilation cannot be achieved. . In this case, the opening of the outside airflow passage or the inside air circulation hole may be closed, but if the opening of the outside airflow passage is closed, the resistance of the helmet main body at high speed increases and the essential function of the helmet. There was a risk of damaging. Further, when the inside air circulation hole is closed, it is difficult to provide an opening / closing means that can be easily opened and closed from the outside because the inside air circulation hole is formed between the outside air circulation body and the outer periphery of the helmet body. .

In view of the above problems, an object of the present invention is to provide a helmet ventilation structure in which the discharge of internal air from the helmet body can be adjusted and which can be easily assembled.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention takes the following measures. That is, the feature of the present invention is that a plurality of inside air circulation holes for discharging the inside air of the helmet body to the outside of the helmet body are formed in the helmet body, and an outside air circulation body is provided on the outer periphery of the helmet body. An outer airflow passage that opens in the front direction and introduces the outside air from the front and discharges it to the rear is formed between the outer periphery of the helmet body, and the inside air circulation hole allows the inside air to flow through the outside airflow passage. In the ventilation structure of the helmet communicated with the outside airflow passage to suck the air, the outside air circulation body is provided with an opening / closing plate through a knob slidably mounted, and this opening / closing plate is It is in contact with the outer circumference and the inside air circulation hole can be opened and closed by sliding movement of the knob.

In addition, an outside air flow passage that is open in the front-back direction of the helmet body and is arranged in a plurality in the width direction is formed between the outside air circulation body and the outer circumference of the helmet body, and each outside air passage has an inside air flow passage. The circulation holes are communicated with each other, and each inside air circulation hole is opened and closed by the opening and closing plate. Furthermore, there is a single knob.

[0007]

[Action]

 In the present invention, since all the opening / closing means such as the knob and the opening / closing plate are attached to the outside air circulation body, the assembly is completed only by fixing the outside air circulation body to the helmet body. In addition, when the knob is operated to open the inside air circulation hole by the opening and closing plate, if outside air is introduced into the outside airflow passage from the front and discharged to the rear, the inside air circulation hole will be generated by the outside airflow flowing in the outside airflow passage. The inside air is sucked in through the air, and the inside air is discharged to the rear of the helmet along with the outside air flow. That is, it is possible to ventilate the inside of the helmet body without directly introducing the outside air into the helmet body. Further, when the knob is operated to close the inside air circulation hole by the opening / closing plate, the suction of the inside air by the outside air flow is stopped and the discharge of the inside air from the inside air circulation hole is stopped.

By providing a plurality of inside air circulation holes and outside air passages in parallel in the width direction of the helmet body, the amount of discharged inside air can be increased and more comfortable ventilation can be achieved. Moreover, ventilation can be adjusted extremely easily by making the opening and closing plate operable with a single knob.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of a ventilation structure for a helmet according to the present invention. The outer wall 2 of the helmet body 1 is formed in a dome shape with a hard reinforced synthetic resin or the like, and an opening 3 for the user to wear is formed in the lower portion. Further, an opening window 4 is formed on the front surface to secure a field of view, and a shield plate 5 that is openably and closably closed is attached to the opening window 4.

An impact absorbing member 6 such as a styrene foam is attached to the inner surface of the helmet body 1 according to the shape of the inner surface. The outer wall 2 and the impact absorbing member 6 on the upper side of the helmet body 1 are formed with a plurality of inside air circulation holes 7 penetrating them. As shown in FIG. 2, the inside air circulation holes 7 are provided at a plurality of positions in the front-back direction of the helmet body 1 and are formed in parallel in three rows in the width direction.

A head cushion 8 for protecting the top of the head of the user is provided on the upper side of the inner surface of the shock absorbing member 6, and a side cushion 9 is provided on the lower side. These cushions 8 and 9 are made of a material such as urethane foam. The head cushion 8 has a block shape, and a circulation path 10 is formed between the head cushions 8 and between the head cushions 8 and the side cushions 9 so that the inside air of the helmet body 1 is circulated. ing. The inside air circulation hole 7 communicates with the circulation path 10 so that the inside air of the helmet body 1 can be discharged to the outside of the helmet body 1.

Reference numeral 11 denotes an outside air circulation body fixed to the outer periphery of the upper portion of the helmet body 1. The outside air circulation body 11 is formed of a synthetic resin or the like into a substantially flat plate shape, and a flat portion 24 for fixing is formed on substantially the entire circumference thereof. Further, the outside air circulation body 11 is provided with two bent portions 12 extending in the front-rear direction, whereby an outer airflow passage 13 opening in the front-rear direction between the outer periphery of the helmet body 1 and the outer periphery of the helmet body 1 is provided on the inner surface side. Are formed in parallel in three rows in the width direction. The outside airflow passages 13 are provided corresponding to the inside air circulation holes 7, and an introduction port 14 is formed in the front of each outside airflow passage 13 and an exhaust port 15 is formed in the rear thereof. The bent portion 12 reinforces the outside air circulation body 11 and also prevents the opening / closing portions 21 on the left and right of the opening / closing plate 20 which will be described later from rising.

Further, an opening 16 that is long in the front-rear direction is formed in the center of the outside air circulation body 11, and a knob 17 is engaged with this opening 16. The knob 17 is provided with a projection 18 penetrating the opening 16 and provided with a locking claw at the tip thereof, and a stepped mounting piece 19 is attached to the projection 18. As a result, the outside air circulation body 11 is sandwiched in a sandwich shape, and the knob 17 is slidable in the front-rear direction.

An opening / closing plate 20 formed of a synthetic resin or the like in a substantially flat plate shape is attached to the attachment piece 19. The opening / closing plate 20 extends in the front-rear direction so as to correspond to the inside air circulation hole 7 and is arranged in parallel in three rows in the width direction, and a connection for connecting these opening / closing parts 21. And a section 22. The opening / closing part 21 is formed with a plurality of through holes 23 corresponding to the inside air circulation holes 7. The attachment piece 19 is attached to the approximate center of the opening / closing plate 20, and the opening / closing plate 20 slides in the front-back direction by slidingly moving a single knob 17.

Then, an adhesive or the like is applied to the flat surface portion 24 of the outside air circulation body 11, and the outside air circulation body 11 unitized by attaching the knob 17, the opening / closing plate 20 and the like is fixed to the helmet body 1. ing. As a result, the opening / closing plate 20 comes into contact with the outer periphery of the helmet body 1, and the sliding movement of the knob 17 causes the opening / closing plate 20 to correspond to the internal air flow hole 7 and the through hole 23 as shown in FIG. The open / close portion 21 is disengaged from the inside air circulation hole 7 of the portion, and the opening / closing plate 20 can be moved to a closed position where the inside air passage hole 7 corresponds to the inside air passage hole 7 as shown in FIGS.

According to the above configuration, since the opening / closing means of the knob 17 and the opening / closing plate 20 are attached to the outside air circulation body 11 to be unitized, the outside air circulation body 11 is fixed to the helmet body 1 to be assembled. Can be completed. Then, as shown in FIG. 1, when the knob 17 is located rearward, that is, when the opening / closing plate 20 is in the open position, when the outside air is introduced into the outside airflow passage 13 from the front and is discharged to the rear, the air flows through the outside airflow passage 13. The inside air is sucked through the inside air circulation hole 7 by the outside air flow and is discharged to the rear of the helmet body through the discharge port 15 together with the outside air flow. Therefore, since the inside of the helmet body 1 can be ventilated without directly introducing the outside air into the helmet body 1, the ventilation can be achieved even in winter without directly cooling the head with cold air. Moreover, even in rainy weather, since the outside air circulation body 11 covers the inside air circulation hole 7, rainwater does not directly enter the helmet body 1.

On the other hand, as shown in FIG. 4, when the knob 17 is in the front, that is, when the opening / closing plate 20 is in the closed position, the inside air is not discharged from the inside air circulation hole 7. It is possible to easily deal with the case where it is not necessary to discharge. In addition, since a plurality of inside air circulation holes 7 and outside air passages 13 are provided in parallel in the width direction of the helmet body 1, a large amount of inside air is discharged for more comfortable ventilation, and the single knob 17 is used. Since the opening / closing plate 20 can be operated, the ventilation can be adjusted extremely easily.

It should be noted that the present invention is not limited to the above embodiment, and the fixed position of the outside air circulation body 11 may be replaced with the upper portion of the helmet body 1 on the left and right side portions. In addition, the contact state between the opening / closing plate 20 and the helmet body 1 is made elastic by the mounting piece 19, so that the opening / closing plate 20 can be pressed to the helmet body 1 side. It is possible to prevent the invasion of the outside airflow into the space between the air conditioner 1 and the air conditioner 1, and to more reliably block the inside air in the closed position of the opening / closing plate 20.

[0019]

[Effect of device]

 According to the present invention, since the opening / closing means such as the knob and the opening / closing plate are all attached to the outside air circulation body, the assembly can be completed only by fixing the outside air circulation body to the helmet body. Further, when the inside air circulation hole is opened, the inside of the helmet body can be ventilated without introducing the outside air directly into the helmet body, which allows the head to be directly cooled by the cool air even in winter. Can be ventilated without Further, when the opening / closing plate is closed, it is possible to prevent the discharge of the inside air from the inside air circulation hole, and to stop the discharge of the warm inside air in the severe cold of winter and the initial stage of mounting.

Further, since a plurality of inside air circulation holes and outside air passages are provided in parallel in the width direction of the helmet body, the amount of discharged inside air can be increased and comfortable ventilation can be performed more quickly. In addition, the opening and closing plate can be operated with a single knob, so that the ventilation can be adjusted extremely easily.

[Brief description of drawings]

FIG. 1 is a side vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front sectional view of a main part of FIG.

FIG. 4 is a longitudinal cross-sectional view of the main parts of FIG. 1 with the opening / closing plate in the closed position.

5 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Helmet Main Body 2 Outer Wall 7 Inside Air Circulation Hole 11 Outside Air Circulation Body 13 Outside Air Flow Passage 17 Knob 20 Opening / Closing Plate

Claims (3)

[Scope of utility model registration request] 1. A helmet body is formed with a plurality of inside air circulation holes for discharging the inside air of the helmet body to the outside of the helmet body, and an outside air circulation body is provided on the outer periphery of the helmet body. Then, an outside airflow passage for introducing outside air from the front and discharging it to the rear is formed between the outer periphery of the helmet body, and the inside air circulation hole for sucking the inside air by the outside airflow flowing in the outside air passage. In a helmet ventilation structure that is in communication with a flow passage, the outside air circulation body is provided with an opening / closing plate through a knob slidably mounted, and the opening / closing plate is abutted on the outer periphery of the helmet body. A ventilation structure for a helmet, characterized in that the inside air circulation hole can be opened and closed by sliding movement of the knob. 2. An outside air circulation body is formed between the outer circumference of the helmet body and a plurality of outside air passages that are open in the front-back direction of the helmet body and are arranged in parallel in the width direction. The ventilation structure for a helmet according to claim 1, wherein the holes are communicated with each other and each inside air circulation hole is opened and closed by the opening / closing plate. 3. The ventilation structure for a helmet according to claim 1, wherein a single knob is provided.