RU2773888C1 - Motorcycle or bicycle helmet with an air filter - Google Patents

Abstract

FIELD: headgear.

SUBSTANCE: invention relates to helmets for cyclists and motorcyclists. The helmet has a headpiece, an underlying shock-absorbing attachment, an air filter, wherein the underlying shock-absorbing part is made partially or fully of perforated elastic tubes whereon tubes made of a filtering material are put in a "sleeve" manner, wherein the perforated tubes are blinded at one end and connected by the other end with the collector(s), connected by elastic hoses with the half-mask located on the face, wherein the helmet has an inlet and/or outlet air valve(s), and the headpiece in the front and anterolateral parts has slots for entry of incoming air. The slots have apparatus for adjusting the flow section.

EFFECT: creation of a helmet suitable for use by cyclists and motorcyclists.

3 cl, 2 dwg

Description

The invention relates to helmets for cyclists and motorcyclists.

It is known that cyclists, and especially motorcyclists, ride mainly on highways and public streets, the atmosphere above which is polluted with dust and soot from car traffic.

Known "Dust Helmet" op pat. No. RU 2093222. The helmet has a helmet, podkachnoe mount, built-in fan, coarse and fine filters, and inlet and outlet valves. Moreover, the fine filter is made in the form of a bag located between the inner surface of the helmet and podkasochny fastening.

The disadvantage of the device is that it requires a power supply, which in turn requires connecting wires for motorcyclists, and batteries for cyclists. Another disadvantage is that the air intake is carried out behind the helmet, in the vacuum zone, which makes it difficult for the fan to work and can even stop air circulation if the dynamic pressure is greater than the fan pressure. In addition, clean air enters from the fine filter bag under the helmet and intensively mixes with the surrounding air as it exits from under the helmet. It can be roughly said that the air inhaled by a person contains only 10% of purified air, and the rest is unpurified air. The use of the bag as a fine filter is also questionable - the upper half will be pressed against the hard part of the helmet by the pressure of the fan, and the lower half will be pressed against the shock-absorbing part of the helmet and against the head, that is, the throughput of the filter will be significantly reduced. And finally, it is quite obvious that a small-sized fan will not be able to provide the required flow of purified air - during intensive riding, a cyclist inhales about 2-3 liters of air in 1 second, i.e. 7.2-10.8 cu. m/h, which requires significant power and fan size.

The objective and technical result of the invention is the elimination of these shortcomings, as well as the expansion of the arsenal of technical means for this purpose.

To do this, the helmet, like the prototype, contains a helmet, but the shock-absorbing part of the helmet is made entirely of perforated elastic tubes or with alternating shock-absorbing inserts made of foam rubber or foam, moreover, these tubes are wrapped in filter material, and the perforated elastic tubes are plugged at one end, and the other end are connected to the collector/collectors, which are connected by elastic hoses to the half-mask located on the face, while the helmet has inlet and outlet air valves, and the helmet has openings for incoming air in the front and front-side parts.

The direction of the tubes can be any, but it is convenient to position the collector at the back, and therefore the desired direction of the tubes is front to back. However, the helmet may have two collectors located approximately above the ears. In this case, the location of the tubes should be transverse to the direction of movement, that is, across the head.

The total surface of the filter material in this design will be even somewhat larger than that of the bag in the prototype, and most importantly, the filter material will almost not adhere to the inner surface of the helmet and to the surface of the head. To the surface of the head - especially, since the tubes are adjacent to the head with only a small surface, wrapped in filter material, and besides, people usually have a hairstyle, and the hair in the hairstyle passes air well.

In this design, the incoming air flow does not interfere with the flow of air to the person, but on the contrary, it helps. The oncoming flow enters through the slots of the helmet into the under-helmet cavity, from where it is squeezed out by this pressure towards the person's face into the half-mask.

Perforated elastic tubes can occupy the entire undercarriage space, or can alternate with shock-absorbing inserts made of foam rubber or foam. It should be noted that the elastic perforated tubes have a very good shock-absorbing ability.

The inlet and outlet valves may be located in the manifold(s) or in the half mask. Or the inlet valve is located in the manifold/manifolds and the outlet valve in the half mask. It is particularly advantageous to place the exhaust valve(s) in the half mask. It is possible to have only an exhaust valve - because. the air intake system has significant aerodynamic resistance, then 90-95% of the exhaled air will still go to the exhaust valve, especially if there are two of them. And most importantly, the absence of an inlet valve / valves will significantly reduce inhalation resistance.

The presence of a half mask allows you to use 100% purified air for breathing, while in the prototype, purified air is intensively mixed with unpurified air.

Depending on the speed of movement and the presence of a tail or head wind, insufficient or excessive ventilation of the helmet space may occur. To control the degree of ventilation, the holes in the helmet may have devices for adjusting the flow area. These devices can be any of the known devices for this purpose, for example, it can be three sector slots in a helmet of 70 degrees each, located in a circle and closed by a rotary disk with the same slots. Then, with the full coincidence of the sectors in the helmet and in the disk, the flow section will be proportional to 210 degrees of the disk, and with the maximum overlap of the sectors, the flow section will be proportional to 30 degrees of this disk. It is possible to use blinds, sliding gates (as in a school pencil case), rotary dampers (as in a carburetor), etc.

In the accompanying sketches in Fig. 1 shows a section of the helmet on the head side view, Fig. 2 shows the elements of the podcast space.

The helmet in Fig. 1 contains a helmet 1, perforated elastic tubes 2 wrapped in filter material, a rear manifold 3 connected by two corrugated elastic hoses 4 to a half mask 5. The half mask has two inlet valves 6 and one outlet 7.

In FIG. 2 shows the mixed structure of the shock-absorbing undercarriage layer: in addition to perforated tubes 2, there are foam or foam inserts 8.

The helmet works like this: the incoming air enters under the helmet 1 into the helmet space, where it enters the rear manifold 3 through the perforated elastic tubes 2 wrapped in filter material, from where it enters the half mask 5 through the inlet valves 6. The person takes a breath. Then exhalation is performed, and the exhaust air is blown out through the exhaust valve 7.

The filter material must be changed or washed periodically. To do this, the “stocking” of the filter material is removed from the side of the plugged end of the perforated tube and a new one is put on instead.

Claims (3)

1. A helmet with a helmet, characterized in that the podkasochnaya shock-absorbing part is made entirely of perforated elastic tubes or with alternating shock-absorbing inserts made of foam rubber or foam, the tubes being wrapped in filter material and plugged at one end, and connected to the collector / collectors at the other end, which are connected by elastic hoses with a half-mask located on the face, while the helmet has inlet and outlet air valves, and the helmet has holes in the front and anterolateral parts for incoming air. 2. Helmet according to claim 1, characterized in that the inlet and outlet valves are located in the manifold / manifolds or in the half mask. 3. A helmet according to claim 1, characterized in that the holes in the helmet have devices for adjusting the flow area, for example, three sector slots in the helmet, 70 degrees each, located in a circle and closed by a rotary disk with the same slots.

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