JP2022028152A - Mask with electric fan - Google Patents

Abstract

To provide a mask with an electric fan in which a filter can be replaced easily, and which can achieve compactness and has improved usability, and which can cope not only with the use in daily life, but also with the use under a dusty environment.SOLUTION: A mask 1 with an electric fan includes: a mask body 3; an attachment 15 consisting of an inner attachment 15A and an outer attachment 15B which are fitted to each other while sandwiching a covering part 3a of the mask body 3 through an opening 9, an opening 11, etc.; and an electric fan unit 5 detachably provided to the attachment 15. The electric fan unit 5 integrally includes a motor 29, a fan 31, a filter 19, a cover 21, a power source for supplying power to the motor 29, etc.SELECTED DRAWING: Figure 2

Description

The present invention relates to a mask worn on the face to cover the nose and mouth, and more particularly to a mask with an electric fan that takes in the outside air filtered by a filter inward with a fan.

Various masks are used to prevent harmful substances such as pollen, dust, and droplets of infection source contained in the air from entering the body.

However, this type of mask is insufficient as a dust countermeasure when a large amount of dust is generated, for example, when a house is demolished or when stone processing is performed.
Conventionally, a gas mask or the like in which air filtered by a filter is sent into a rigid surface as shown in Patent Document 1 by an axial fan via an air hose is known, but it is heavy equipment and simple. Not suitable for use.

On the other hand, Patent Document 2 proposes a face mask having a configuration in which outside air is taken into the mask by an electric fan in a general or simple mask used in daily life.
It is fixed or detachably attached to the outer surface of the lower part of the mask body using a small electric fan that cools the hard disk drive of the computer, connected by wiring and attached to another part of the body, and has a built-in battery control. It is configured to be driven by a device.

Jikkai Sho 58-64354 Gazette Special Table 2003-500178 Gazette

However, in the face mask described in Patent Document 2, since the mask body itself is used as a filter as it is, the contaminated part (the part corresponding to the filter) is replaced by forcibly taking in the outside air, that is, the contaminated part is partially replaced. Since it cannot be recovered by the mask, it is necessary to replace the mask body every time the degree of clogging becomes large.
Further, since the power supply is configured to be separated from the mask main body, the movement of the body is easily restricted by the wiring, which leads to a decrease in mobility and compactness, and eventually a decrease in usability.

The present invention was devised in view of such a situation, and the filter can be easily replaced, the size can be reduced, the usability can be improved, and the present invention can be used not only in daily life but also in a dusty environment. The purpose is to provide a mask with an electric fan that can be used.

The present invention has been made to achieve the above object, and the invention of claim 1 has a mask main body attached to the face and an electric fan unit attached to the outer surface side of the mask main body. The electric fan unit is integrally provided with a filter, a fan located inside or outside the filter, a motor for rotating the fan, and a power supply for supplying power to the motor, and the rotation of the fan causes the motor to be supplied with power. The mask with an electric fan is characterized in that the sucked outside air flows into the inside of the mask body.

According to a second aspect of the present invention, in the mask with an electric fan according to the first aspect, the inner attachment arranged inside the mask body and the inner attachment with the mask body sandwiched from the outside of the mask body. The electric fan unit is a mask with an electric fan, which comprises an outer attachment that is fitted and fixed, and the electric fan unit is detachably provided on the attachment.

According to a third aspect of the present invention, in the mask with an electric fan according to the first or second aspect, the filter is replaceably provided via a cover detachably provided on the outer surface of the electric fan unit. It is a mask with an electric fan that is characteristic.

According to the invention of claim 4, in the mask with an electric fan according to any one of claims 1 to 3, the power source is a secondary battery, and the electric fan unit determines the rotation speed of the fan by the length of the pressing time. It is a mask with an electric fan, which is characterized by having a changeable switch.

According to the present invention, it is possible to provide a mask with an electric fan that can be easily replaced with a filter, can be made compact, can be improved in usability, and can be used not only in daily life but also in a dusty environment. can.

It is a perspective view which shows the use state of the mask with an electric fan which concerns on embodiment of this invention. It is an exploded perspective view of the mask with an electric fan shown in FIG. It is a figure which shows the attachment, (a) is the front view which looked at the inner attachment from the fitting surface side, (b) is the back view which looked at the outer attachment from the side opposite to the fitting surface. It is a bottom view of the mask with an electric fan shown in FIG. 1 in which a part of the electric fan unit is omitted. It is a front view of the main part seen from the inside of the mask main body in the mask with an electric fan shown in FIG. It is a side view of the electric fan unit shown in FIG. It is sectional drawing of the main part before attaching the electric fan unit to the attachment of the mask with an electric fan shown in FIG.

Hereinafter, the mask with an electric fan according to the embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a usage state in which a mask 1 with an electric fan (hereinafter, abbreviated as mask 1) according to the present embodiment is attached to a face. The mask 1 has a polyurethane mask body 3 having high follow-up deformability along the contour of the face, an electric fan unit 5 detachably attached to the mask body 3, and the like.

As shown in FIG. 2, the mask main body 3 has a covering portion 3a that covers the nose and mouth, and an ear hook portion 3b.
On the right side of the cover portion 3a in the figure, a circular opening 9 is formed and a rectangular opening 11 is formed. The opening 9 is a portion where the outside air flows in, and the opening 11 is formed in a portion different from the portion where the outside air flows.

An attachment 15 made of synthetic resin is attached to the covering portion 3a. An electric fan unit 5 is detachably provided on the attachment 15.
The attachment 15 includes an inner attachment 15A arranged inside the cover portion 3a, and an outer attachment 15B that is fitted and fixed to the inner attachment 15A with the cover portion 3a sandwiched from the outside of the cover portion 3a. ..
That is, the covering portion 3a is sandwiched between the inner attachment 15A and the outer attachment 15B, and the inner attachment 15A and the outer attachment 15B are fitted and fixed, so that the attachment 15 is fixed to the covering portion 3a. In other words, the attachment 15 is detachably fixed to the covering portion 3a by its own sandwiching / fitting configuration without using any separate fixing member (screw or the like).

Specifically, the inner attachment 15A includes a flat plate-shaped base plate 15Aa, a cylindrical fitting wall 15Ab projecting from the base plate 15Aa toward the outer surface side of the covering portion 3a, and similarly projecting toward the outer surface side of the covering portion 3a. It has a fitting wall 15Ac having a rectangular cylinder shape.
Convex portions 15Ad protruding in the radial direction are formed at three locations on the peripheral edge of the protruding end of the fitting wall 15Ab. A plurality of protrusions 15Ae for preventing misalignment are formed on the outer surface of the base plate 15Aa.
The inner attachment 15A is set by inserting the fitting wall 15Ab through the opening 9 of the covering portion 3a and inserting the fitting wall 15Ac through the opening 11 of the covering portion 3a.

The outer attachment 15B includes a flat plate-shaped base plate 15Ba, a circular fitting hole 15Bb formed in the base plate 15Ba and fitted to the fitting wall 15Ab, and a fitting recess 15Bc fitted to the fitting wall 15Ac. have.
A concave portion 15Bd through which the convex portion 15Ad passes is formed on the peripheral edge of the fitting hole 15Bb. Similar to the inner attachment 15A, a plurality of protrusions 15Be for preventing misalignment when the covering portion 3a is sandwiched are formed on the inner surface side of the base plate 15Ba (see FIG. 7).

As shown in FIG. 2, in the outer attachment 15B, the fitting hole 15Bb is fitted into the fitting wall 15Ab of the inner attachment 15A from the outside of the covering portion 3a, and the fitting recess 15Bc is fitted into the fitting wall 15Ac. Can be attached.
Since the fitting of the fitting hole 15Bb to the fitting wall 15Ab is simply inserted, the fixing of the attachment 15 to the covering portion 3a is substantially the fitting of the outer attachment 15B to the fitting wall 15Ac of the inner attachment 15A. It is obtained by closely fitting the recesses 15Bc.

As shown in FIG. 3A, radial ribs 15Af are formed on the bottom surface side of the fitting wall 15Ab of the inner attachment 15A. On the peripheral edge of the protruding end of the fitting wall 15Ac, convex edges 15Ah for obtaining a strong snap fitting with the fitting recess 15Bc of the outer attachment 15B are formed at four points.

As shown in FIG. 2, the electric fan unit 5 has a unit main body portion 17, a circular filter 19, and a hexagonal cover 21 having a large number of ventilation holes 21a.
The unit main body 17 includes a cylindrical fan accommodating portion 23 and a power accommodating portion 25 containing a secondary battery such as a lithium ion battery (not shown) as a power source.
As shown in FIG. 4, a ventilable three-pronged motor support portion 27 is formed on the bottom surface side (cover portion 3a side) of the fan accommodating portion 23 to support the motor 29. A fan 31 is fixed to the rotating shaft of the motor 29.
Further, on the bottom surface of the fan accommodating portion 23, a concave portion 23a is formed through which the convex portion 15Ad of the fitting wall 15Ab of the inner attachment 15A passes, and the electric fan unit 5 is rotated after passing through the convex portion 15Ad. The engaging edge 23b that engages with the convex portion 15Ad is formed.

As shown in FIG. 2, a ventilable three-pronged support portion 33 that supports the filter 19 is formed on the outer surface side of the fan accommodating portion 23. The cover 21 is detachably provided by a one-touch operation by a fitting structure having a convex portion and a concave portion (not shown) formed between the outer surface of the fan accommodating portion 23.
Further, on the outer surface of the unit main body 17, a stepped recess 23c for putting a finger on the top and removing the cover 21 is provided at a portion where one top of the hexagon is located when the cover 21 is fitted. ing.

A switch 35 that can change the rotation speed of the fan 31 according to the length of the pressing time is provided on the side surface of the unit main body 17, and a display unit 37 that displays the ON state of the switch 35 is provided on the outer surface of the power storage unit 25. Is provided.
When the switch 35 is pressed, the display unit 37 lights up, power is supplied from the secondary battery to the motor 29, and the fan 31 rotates. When the switch 35 is pressed and held for a long time, the rotation speed of the fan 31 increases. If the switch 35 is pressed and held again from that state, the power is turned off.

FIG. 5 is a view of the mask 1 as viewed from the inside.
The outside air that has passed through the filter 19 is supplied to the vicinity of the mouth from the bottom surface side of the fitting wall 15Ab of the inner attachment 15A.
The outside air is taken into the mask 1 by the rotation of the fan 31. The air taken into the mask 1 flows out of the mask 1 through the covering portion 3a. The person wearing the mask 1 breathes through the covering portion 3a. That is, when breathing, air flows into and out of the mask 1 through the covering portion 3a.

As shown in FIG. 6, the electric fan unit 5 has a shape in which the power supply accommodating portion 25 is slightly bent toward the mask main body 3.
FIG. 7 is a cross-sectional view of a main part of the mask 1 before mounting the electric fan unit 5 on the attachment 15. The shape of the fan 31 is schematically shown for the sake of clarity.
When the fan 31 rotates, an air flow toward the inside of the mask body 3 is generated, and outside air flows into the mask body 3 from the fitting wall 15Ab of the inner attachment 15A through the ventilation holes 21a of the cover 21, the filter 19, and the fan accommodating portion 23. do. Reference numeral A indicates the air flowing into the mask main body 3.

The work of attaching and detaching the electric fan unit 5 to the attachment 15 will be described.
The position where the concave portion 23a of the fan accommodating portion 23 fits into the convex portion 15Ad of the fitting wall 15Ab of the inner attachment 15A is a position where the electric fan unit 5 is obliquely displaced with respect to the attachment 15. When the unit 5 is rotated so as to cover the attachment 15, the convex portion 15Ad of the fitting wall 15Ab engages with the engaging edge 23b of the fan accommodating portion 23, the electric fan unit 5 is integrated with the attachment 15, and the outer attachment is attached. The fitting recess 15Bc of 15B is covered with the power supply accommodating portion 25.
That is, the entire outer attachment 15B on the outer surface side of the covering portion 3a is covered with the electric fan unit 5, and the appearance deterioration due to the exposed shape of the outer attachment 15B is suppressed.
When removing the electric fan unit 5 from the attachment 15, it is sufficient to rotate the electric fan unit 5 by a predetermined angle so that the convex portion 15Ad can be removed from the concave portion 23a of the fan accommodating portion 23.

When the inner attachment 15A and the outer attachment 15B are fitted, the protrusion 15Ae of the inner attachment 15A bites into the inner surface of the covering portion 3a, and the protrusion 15Be of the outer attachment 15B bites into the outer surface of the covering portion 3a.
The protrusions 15Ae and the protrusions 15Be are not always necessary, but by providing them, a strong fixing state that does not shift the position even if the covering portion 3a is only sandwiched between the inner attachment 15A and the outer attachment 15B. Can be obtained.

As described above, according to the mask 1 with an electric fan according to the present embodiment, the fan 31, the motor 29, and the power supply are integrated into the electric fan unit 5 which is one unit, and are fixed to the covering portion 3a of the mask main body 3. Since it is detachably provided on the attachment 15, it can be made compact and contributes to the improvement of usability. Compared to a configuration in which the power supply is arranged in another part of the body and connected by wiring, there is no trouble such as the movement of the body being restricted by wiring.
The filter 19 can also be replaced even with the mask main body 3 attached by simply removing the fitting of the cover 21, and the replacement work becomes easy. Charging of the secondary battery can also be easily performed by simply removing only the electric fan unit 5 from the attachment 15.
Since the attachment 15 has an attachment configuration that only sandwiches the cover portion 3a, it does not require a dedicated member for fixing to the cover portion 3a, and has an advantage that the configuration on the mask main body 3 side can be simplified.

Therefore, comfort can be obtained when using the mask in the summer.
Further, the dustproof function can be obtained even in an environment where dust is generated, and it can be used comfortably even in a dust environment. It can also be used in combination with goggles that protect the eyes.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the invention may be changed even if there is a design change within a range not deviating from the gist of the present invention. included.
For example, the opening 9 of the covering portion 3a may not have a single hole configuration but may have a configuration in which a plurality of holes are gathered. In this case, the configuration of the attachment 15 also corresponds to this. In short, the shape may be such that the outside air sucked by the fan 31 can be introduced into the mask main body 3. The same applies to the opening 11.
The material of the mask body 3 is not limited to the above. That is, it suffices as long as it has a strength that allows the attachment 15 and the electric fan unit 5 to be attached and held.
The power source of the motor 29 as a drive source for rotationally driving the fan 31 is not limited to the secondary battery, and may be a normal dry battery or a button battery.
Further, the position of the filter 19 in the electric fan unit 5 may be closer to the mask main body 3 than the fan 31.

1 ... Mask with electric fan 3 ... Mask body 5 ... Electric fan unit 9 ... Opening 11 ... Opening 15 ... Attachment 15A ... Inner attachment 15B ... Outer attachment 19 ... Filter 21 ... Cover 29 ... Motor 31 ... Fan 35 ... Switch

Claims (4)

It has a mask body mounted on the face and an electric fan unit attached to the outer surface side of the mask body, and the electric fan unit includes a filter, a fan located inside or outside the filter, and the fan. A motor for rotating the mask and a power supply for supplying power to the motor are integrally provided, and the outside air sucked by the rotation of the fan flows into the inside of the mask body. Mask with electric fan. In the mask with an electric fan according to claim 1,
The electric fan unit comprises an inner attachment arranged inside the mask body and an outer attachment that is fitted and fixed to the inner attachment with the mask body sandwiched from the outside of the mask body. A mask with an electric fan that is removable from the attachment. In the mask with an electric fan according to claim 1 or 2.
The filter is a mask with an electric fan, which is replaceably provided via a cover provided on the outer surface of the electric fan unit so as to be removable. In the mask with an electric fan according to any one of claims 1 to 3.
A mask with an electric fan, wherein the power source is a secondary battery, and the electric fan unit has a switch capable of changing the rotation speed of the fan depending on the length of pressing time.

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