JP2001081622A - Hood for clean room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hood for a clean room, having a high dustproof function, pleasantness in wearing, and readily wearable and removable. SOLUTION: This hood is equipped with a cloth hood 12 which is made of a dustproof material and integrally wraps at least the head and the face except parts around the eyes, a mask part 16 which is fitted to the cloth hood 12 and covers the nose and the mouth of the face and an insertion hole 18 which is formed on the mask part 16 and passed from the outside to the inside of the mask part 16. The hood has an exhaust hose 38 inserted into the insertion hole 18 and a fan unit 40 which is connected to the tip at the opposite side of the mask part 16 and exhausts through a filter 42.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hood for a clean room which is worn in a clean room and mainly prevents dust from being generated from a head.

[0002]

2. Description of the Related Art Conventionally, in a clean room in which semiconductors are manufactured, workers wear clean room wear made of a non-dusting and dust-proof material. And
There was a hood unit that covered the hood completely covering the upper part from the neck to prevent dust from the face and head, and ventilated the inside of the hood. In such a hood unit, a hose is inserted through the back of the hood or the like to exhaust air in the hood covering the head, and a tip of the hose extending outside the hood is connected to the fan unit. Was. The fan unit was provided with a fan for sucking and exhausting air in the hood and a filter for passing the sucked air. And at the lower end of the hood body,
It was fitted with a hem made of non-dusting and dust-proof cloth material, and was used inside the collar of clean room wear.

[0003]

In the case of the above-mentioned prior art, since the entire head is covered, it is difficult to hear the ears, and the hood unit covering the head must be removed for telephone calls and meetings. . In addition, when attaching and detaching the hood unit, it was necessary to loosen the collar of the clean room wear and put the hem of the hood unit in and out, and the dust generation was extremely increased.

[0004] Since the entire head is covered with a hood body, and a hose connected to a fan unit is drawn into the hood body, the sound of the fan unit is transmitted to the hose and can be resonated inside the hood body. Outside sounds, such as a mechanical buzzer inside, human voices, and telephone ringing, were difficult to hear.

[0005] Further, since the breath exhaled in the hood unit spreads over the entire inside of the hood main body and is sucked by the hose, the exhaled breath stays inside the hood main body for a few seconds, and unpleasant feeling remains. In particular, those having a dome-shaped hood body made of resin were heavy and easily fatigued after long-time use.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a clean room hood which has a high dustproof function, is comfortable when worn, and can be easily attached and detached.

[0007]

SUMMARY OF THE INVENTION The present invention provides a cloth hood made of a dust-proof material and wrapping the head and face together except for at least the periphery of the eyes, and a nose and mouth of the face to which the cloth hood is attached. A mask portion to be covered, an insertion hole formed in the mask portion and penetrating from the outside to the inside of the mask portion, an exhaust hose inserted into the insertion hole, and the mask portion of the hose, This is a hood for a clean room provided with a fan unit that is connected to the opposite end portion and exhausts air through a filter.

Further, a clear visor, which is a transparent synthetic resin cover for covering at least the front surface of the face, is provided outside the cloth hood. This clear visor is
The front surface of the head is dome-shaped, the rear surface of the head is open, and a lower end of the clear visor is provided with a hem member that covers the entire circumference of the neck and a fixing member that fixes the hem member to the neck.

In the hood for a clean room according to the present invention, the hose is inserted into the inside of the mask portion, and the exhaled breath is directly sucked in a short period of time. . Further, the clear visor is attached to and detached from the outside of the cloth hood, and dust generation is suppressed by the cloth hood even when the clear visor is removed.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 5 show an embodiment of the present invention. A hood unit 10 of this embodiment has a cloth hood 12 directly worn on a head, and the cloth hood 12 is non-dusting and dustproof. It is made of a high-density woven polyester material with excellent breathability, air permeability, and durability, and a sheet material having moisture permeability. The cloth hood 12 wraps the head and face integrally except for at least the area around the eyes, and the hem reaches a position where it touches the shoulder. The cloth hood 12 has an opening 14 formed around the eyes, and a mask portion 16 is provided at a portion covering the nose and mouth. The mask portion 16 has a three-layer structure in which a front fabric and a back fabric made of a high-density woven material such as polyester are provided, and a polyolefin-based microweb is disposed therebetween. At both sides of the mask portion 16, insertion holes 18 to which hoses 38 to be described later are attached are formed, respectively. In the vicinity of both sides behind the neck of the cloth hood 12, strings 20 are provided to squeeze the cloth hood 12 and fix it to the head.

The hood unit 10 is provided with a clear visor 22 that covers the cloth hood 12. The clear visor 22 has a ring-shaped headgear 24 fixed to the head, and outside the headgear 24,
A visor body 26 made of a transparent PET resin or the like is attached. The visor body 26 has a shape obtained by cutting off approximately one-third of a hemispherical dome, the front surface of the head is a substantially dome-shaped portion, the lower portion and the rear surface of the head are opened, and fixing members are provided on both side portions of the head. The headgear 24 is attached via 28. The visor body 26 has an opening 30 formed around the eyes, and both side ends of the opening 30 reach the vicinity of the ear so that a telephone receiver or a mobile phone can be placed near the ear. . The fixing member 28 has an opening 3 outside the visor main body 26.
A plate-shaped shield 32 that covers 0 is attached. The shield 32 is rotatable around the fixing member 28 and can open and close the opening 33 manually. Shield 32
Is made of the same material as the visor main body 26, such as transparent PET resin. A through hole 34 is formed below both sides of the visor body 26, and a pair of hoses 38 are inserted into the through hole 34 via a packing 36.

The end of each hose 38 inserted inside the visor body 26 is inserted into an insertion hole 18 formed in the mask 16 of the cloth hood 12. The end of the hose 38 extending to the side opposite to the mask 16 reaches the waist via the back of the wearer and is connected to the fan unit 40. The fan unit 40 is, for example, an ABS
It is made of resin and has an air volume of, for example, 80 liters / minute.
The exhaust port of the fan unit 40 has a filter 42 for collecting dust.
Is attached. The fan unit 40 is connected to a battery unit 44, and the battery unit 44 is held at a waist portion of the wearer via a belt 46.

At the lower end of the visor main body 26, a band-shaped hem member 48 made of a high-density woven fabric material is provided. The hem member 48 is detachably provided on the visor main body 26 by an attachment member 49 such as a hook-and-loop fastener, and a string body 50 extending to the side of the hem member 48 is provided at a lower end portion of the hem member 48. .

Next, a method of using the hood unit 10 of this embodiment will be described. First, the wearer wears the clean room wear 52 and wears the belt 46. Then, the cloth hood 12 of the hood unit 10 is put on, the cord body 20 is tied and locked near the neck, and the hem of the cloth hood 12 is put inside the collar 54 of the clean room wear 52. Then, the clear visor 22 is worn on the cloth hood 12. The method of wearing the clear visor 22 is as follows. First, the headgear 24 is placed on the head, and the visor body 26 is worn,
Wrap the string 50 of the collar member 48 around the neck and tie it behind the neck,
Fix it. Then, the wearer follows the hose 38 in a predetermined order.
The fan unit 40 and the battery unit 44 are mounted.

Then, the fan unit 40 is driven,
The breath exhaled into the mask is suctioned by the hose 38 and the filter 4
Exhaust into the clean room through 2. Although the back of the clear visor 26 is open, the inside of the clean room is down-flowed to remove dust, so that there is no problem in the working space in front of the body.

Further, depending on the working environment of the clean room,
It is also possible to work without using the clear visor 22 and wearing only the cloth hood 12. In this case, it is possible to freely select whether or not to perform the suction by the hose 38.
8 is more excellent in dustproofness.

Here, a conventional dome-shaped hood unit made of PET resin or the like, which completely covers the neck from the upper portion shown in the prior art, and a semi-dome-shaped hood unit 10 of one embodiment of the present invention. The inside noise was measured, and the measurement results are shown in the following table.

[0018]

[Table 1] As a result, the noise of the hood unit 10 of this embodiment was smaller both when the shield 32 was closed and when it was opened.

According to the hood unit 10 of this embodiment, since the cloth hood 12 and the clear visor 22 are provided in duplicate, even if the clear visor 22 is removed, dust generation does not increase extremely, and The clear visor 22 can be attached and detached within the interior. In addition, the hem member 48 of the clear visor 22 is a front-hanging type, which is simply covered over the cloth hood 12 and tied with the string body 50, so that it is not necessary to put it in the collar of the clean room wear 52, and it is easy to attach and detach. .

Further, since the visor body 26 of the clear visor 22 has an opening at the rear of the head, the visor body 26 is lighter and less fatigued than the conventional product covering the entire circumference of the head. In addition, since the back of the head is open, the sound does not stay inside and the noise of the fan unit 40 etc. does not stay, and the outside sound is easy to hear, and you should hear the sound of conversations, machine warnings, telephone calls, etc. Can be. Further, since the hose 38 is inserted into the mask portion 16 of the cloth hood 12, noise of the fan unit 40 transmitted through the hose 38 is absorbed by the mask portion 16 and does not spread into the visor body 26, thereby further reducing noise. Can be. Then, by inserting the hose 38 into the mask portion 16 of the cloth hood 12, the breath exhaled by the wearer is instantly sucked, the heat and heat is completely eliminated, and the comfort performance is improved. Further, as shown in FIG. 6, the dustproof performance when the shield is opened is also superior to the conventional product. Further, the opening 30 of the visor body 26
Is formed so as to reach the vicinity of the ear, so that the user can put a telephone handset or a mobile phone into the opening 30 and make a call with the ear while the visor body 26 is worn.

The hood unit of the present invention is not limited to the above-described embodiment, but can be freely changed in the material and form of each member. The shape of the clear visor may be such that it covers only the entire face in addition to the half dome shape. Further, a suction hose may be directly attached to the mask portion without providing a clear visor.

[0022]

The hood unit of the present invention has a high dust-proof property and is comfortable without the heat from exhaled breath.
And since it is lightweight and hard to be tired, there is little noise on the inside, and the sound on the outside is easy to hear, an extremely good wearing feeling can be obtained. Also, when the clear visor is attached and detached, there is no extreme generation of dust, and the clear visor can be attached and detached in a clean room, which is convenient. The clear visor is easy to attach and detach and handle.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hood for a clean room according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where only the cloth hood of the hood for a clean room of this embodiment is worn.

FIG. 3 is a right side view of a clear visor of the clean room hood according to the embodiment.

FIG. 4 is a perspective view of a clear visor and a fan unit of the hood for a clean room according to the embodiment.

FIG. 5 is a perspective view of the clean room hood of this embodiment in a worn state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hood unit 12 Cloth hood 14 Opening 16 Mask part 18 Insertion port 22 Clear visor 24 Headgear 26 Visor main body 28 Fixing member 30 Opening 32 Shield 38 Hose 40 Fan unit 42 Filter 44 Battery unit

Claims (3)

[Claims] 1. A cloth hood made of a dustproof material and wrapping the head and face together except at least around the eyes, a mask covering the nose and mouth of the face to which the cloth hood is attached, and the mask An insertion hole formed in the mask portion and penetrating from the outside to the inside of the mask portion, a hose attached or inserted into the insertion hole, and an exhaust port connected to a distal end portion of the hose opposite to the mask portion. A hood for a clean room, characterized by having a fan unit. 2. The hood for a clean room according to claim 1, wherein a clear visor made of a transparent synthetic resin that covers at least a front face of the face is provided outside the cloth hood. 3. The clear visor, wherein the front surface of the head is dome-shaped and the rear surface of the head is opened, and a lower end of the clear visor has a hem member covering at least a front portion of the neck, and the hem member is fixed to the neck. The hood for a clean room according to claim 2, wherein a fixing member is provided.