Dustproof suit with airbag

Abstract

To provide a dustproof suit that can reduce leakage of dust into a clean room more than conventional techniques and is less expensive than a suit equipped with a suction device. The dustproof suit (B to B2) comprises a dustproof suit body (101) and an airbag (104, 401) attached to an attachment part (110) on the outer surface of the dustproof suit body (101), and at least one opening (109) is provided in the area surrounded by the attachment part (110) to communicate between the inside of the dustproof suit body (101) and the inside of the airbag (104, 401).

Description

[Technical field]

[0001] The present invention relates to dustproof clothing worn when working in spaces that require a dust-free environment, such as clean rooms, in the manufacturing processes of medical equipment, medicines, food, semiconductors, electronic equipment, etc. [Background technology]

[0002] In a work space such as a clean room where dust-free conditions are required, dust from the skin or clothing of a worker may damage or contaminate the object of work (product, etc.). For this reason, workers in a clean room wear dust-proof clothing. Conventionally, such dust-proof clothing has been made of a material with low breathability, and various measures have been taken to increase the degree of sealing of the collar, cuffs, and hem, which communicate between the inside and outside of the dust-proof clothing.

[0003] However, as mentioned above, because the material of the dustproof suit itself has low breathability, when the pressure inside the suit increases due to the movements of the worker, the sealed state of the communication parts is released due to the pumping effect, and at this time, air tends to escape from the collar opening, which is the opening that is inevitably the weakest in terms of the structure for maintaining the sealed state. Moreover, when the air escape is concentrated at the collar opening, the strength of the air escape becomes stronger, which results in more dust being released from inside the dustproof suit, and this, combined with the height position, results in the problem of the dust diffusing over a wider range.

[0004] To solve this problem, the following techniques have been proposed: For example, the technique described in Patent Document 1 prevents air inside the dustproof clothing from leaking out (to the outside) from the collar by providing a belt-shaped cushion member in the circumferential direction on either the inside or outside of the hood at a position corresponding to the collar closure of the dustproof clothing body.

[0005] In addition, the technology described in Patent Document 2 forms the dustproof clothing into a one-piece structure by forming the jacket and trousers as one piece, and by providing an exhaust section at the feet of the dustproof clothing, it prevents the air inside the dustproof clothing from escaping to the outside (generating dust) from the collar.

[0006] In addition, the technology described in Patent Document 3 is equipped with a suction device for reducing the pressure inside the dustproof suit compared to the outside, thereby making it possible to suppress the generation of dust from the head into the clean room. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2008-202177 [Patent Document 2] Japanese Patent Publication No. 11-189904 [Patent Document 3] Japanese Patent No. 5112894 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the technology described in Patent Document 1 has an issue in that when a worker wearing the dustproof suit sits down or bends low while working, the air pressure inside the dustproof suit increases, and as a result, the cushioning material is less effective at preventing air from leaking to the outside (clean room) due to the pumping effect.

[0009] In addition, the technology described in Patent Document 2 releases air containing a lot of dust from inside the dustproof suit into the clean room from the exhaust section, which may reduce the cleanliness of the clean room. In addition, when a worker wearing the dustproof suit sits down or bends down low to work, the dustproof suit comes into contact with the body at the waist, blocking the air flow, and there is a problem that the air inside the dustproof suit from the waist up is likely to be released into the clean room from the collar. In other words, although the technologies described in Patent Documents 1 and 2 are devised to suppress dust generation from inside the dustproof suit, there is still a risk that dust will be released into the clean room.

[0010] Furthermore, the technology described in Patent Document 3 has a problem in that the dustproof clothing is expensive because a suction device is attached to it.

[0011] The present disclosure has been made in consideration of the above points, and aims to provide dustproof clothing that can reduce leakage of dust into a clean room more than conventional techniques and is not expensive. [Means for solving the problem]

[0012] In order to solve the above-mentioned problems, a dustproof clothing according to one embodiment of the present disclosure comprises a dustproof clothing body and an airbag attached to an attachment portion on the outer surface of the dustproof clothing body, and at least one opening is provided in the area surrounded by the attachment portion, connecting the inside of the dustproof clothing body with the inside of the airbag. Effect of the Invention

[0013] According to one aspect of the present disclosure, even when a worker wearing dustproof clothing is seated or bent low to work, the leakage of dust into a clean room can be reduced more than with conventional technology, and dustproof clothing can be provided that is less expensive than clothing equipped with an attached suction device. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic diagram showing a dustproof clothing with an airbag according to a first embodiment. [Diagram 2] FIG. 11 is a schematic diagram showing the structure of an airbag according to a second embodiment. [Diagram 3] FIG. 11 is a partial view showing a seal for reducing the release of air from inside the dustproof clothing according to a third embodiment. [Figure 4] FIG. 13 is a schematic diagram showing an airbag and a dustproof clothing with seals according to a fourth embodiment. [Diagram 5] 1 is a table showing the results of examples verifying the effects of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] [Embodiment 1] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In the following description, the same components are denoted by the same reference numerals. The names and functions of the components are also the same. Therefore, detailed description thereof will not be repeated.

[0016] The dustproof clothing with an airbag according to the present embodiment will be described in comparison with the prior art with reference to FIG. 1. The airbag according to the present embodiment is not an airbag that is installed in an automobile and absorbs shock, but is attached to the dustproof clothing and temporarily stores air. FIG. 1 shows FIGS. 1001 to 1004 to clearly explain the structure of the dustproof clothing with an airbag and the difference from the dustproof clothing of the prior art. FIG. 1001 is an overall view of the dustproof clothing A of the prior art. FIG. 1002 is an overall view of the dustproof clothing B with an airbag according to the present embodiment. FIG. 1003 is an explanatory view of the structure of the airbag. FIG. 1004 is an explanatory view of a hole provided in the dustproof clothing body for allowing air in the dustproof clothing body to flow to the airbag.

[0017] There are various types of dustproof clothing in the prior art, and the dustproof clothing A shown in FIG. 1001 includes a hood 102 that covers the head including the face of the worker, a dustproof clothing body 101 that covers the neck to the wrists and ankles of the worker, and boots 103 that are worn on the feet of the worker. An opening is provided in the front of the hood 102 to ensure the worker's visibility. The dustproof clothing body 101 has a zipper on the front, side, or back, and the worker wears the dustproof clothing body 101 by opening and closing the zipper. Then, with the lower part of the hood 102 housed in the neck part 108 of the dustproof clothing body 101, the neck is tightened and fastened with Velcro (registered trademark) or a hook-and-loop fastener. Furthermore, the boots 103 are worn on the feet to complete the wearing of the dustproof clothing A.

[0018] Dustproof clothing A is used to reduce the leakage of dust originating from human skin fragments and clothing fibers into a clean room, thereby reducing product defects. However, since it is not possible to completely seal a person, some dust is generated (leaked) from dustproof clothing A. The areas from which this dust is generated are head 105 (opening that ensures visibility), cuffs 106, upper boot parts 107, and neck 108. However, cuffs 106 and upper boot parts 107 are shielded with rubber, so there is almost no dust generation from these areas. Therefore, head 105 and neck 108 are the main areas from which dust is generated.

[0019] The type of dustproof clothing A is not limited to the example shown in Fig. 1001. For example, there are many types of dustproof clothing, such as a dustproof clothing body 101 and a hood 102 integrated together, a dustproof clothing body 101 divided into an upper body part and a lower body part, a dustproof clothing not including boots 103, a dustproof clothing body 101 in which the boots 103 are integrated with the entire dustproof clothing body 101 or the lower body part, or a dustproof clothing body 101 in which the hood 102, the dustproof clothing body 101, and the boots 103 are integrated together. The configurations of the dustproof clothing B to the dustproof clothing B2 according to the present disclosure described below can be applied to any type of dustproof clothing as long as the dustproof clothing includes at least the upper body part of the dustproof clothing body 101, that is, the part covering the area from the neck down to both wrists and the waist, and dustproof clothing to which the present disclosure is applied is included in the scope of the present disclosure.

[0020] Compared with the dustproof clothing A of the prior art as described above, the dustproof clothing B with an airbag according to this embodiment (hereinafter simply referred to as "dustproof clothing B") has an airbag 104 attached to an attachment portion 110 on the outer surface of the dustproof clothing body 101 as shown in Figs. 1002, 1003, and 1004. The "outer surface of the dustproof clothing body 101" means the surface of the dustproof clothing body 101 opposite the worker's body. In other words, the airbag 104 is provided on the outside of the dustproof clothing body 101. In this embodiment, the airbag 104 is attached to the chest of the dustproof clothing body 101. The attachment portion 110 is the shaded area between the two dotted lines in Fig. 1004, and in Fig. 1003, the part hidden by the airbag 104 is also shaded for ease of understanding. The attachment portion 110 is an area where the airbag 104 is attached to the dustproof clothing body 101, and has a certain width for attaching the airbag 104. As shown in FIG. 1003, the airbag 104 may have any shape as long as it is bag-shaped. The airbag 104 serves to temporarily store air inside the dustproof clothing B. The airbag 104 is attached to the attachment portion 110, indicated by the hatched area in FIG. 1004, by sewing, gluing, welding, or other means. Alternatively, the airbag 104 may be attached by means of an adhesive or a hook-and-loop fastener that can be repeatedly attached and removed. As will be described later, the position where the airbag 104 is attached is not limited to the chest. The airbag 104 may be attached to any position as long as it does not interfere with work.

[0021] The airbag 104 is made of the same or a different material as the dustproof suit B. It is preferable that the airbag 104 has the same level of airtightness as the dustproof suit B. This enhances the effect of reducing dust generation from the dustproof suit B. In addition, the airbag 104 has a simpler configuration than the suction device of the prior art, so it can be made more cheaply than if a suction device were attached. Furthermore, if the airbag 104 is made of the same material as the dustproof suit B, it can be made more cheaply than if an expensive material is used.

[0022] In the area surrounded by the attachment portion 110 (the area inside the inner dotted line in FIG. 1004), at least one body hole (opening) 109 is provided that communicates the inside of the dustproof clothing body 101 with the inside of the airbag 104. In this embodiment, as shown in FIG. 1004, four body holes 109 are provided in the chest part of the dustproof clothing body 101 to allow the air inside the dustproof clothing B to flow into the airbag 104. The air resistance of the air inside the dustproof clothing body flowing from the body hole 109 into the airbag 104 is smaller than the air resistance of the air inside the dustproof clothing B going out through the gaps in the head 105 or neck 108, so that the air inside the dustproof clothing B flows into the airbag 104 before dust is generated from the head 105 and neck 108, and the generation of dust to the outside (clean room) can be reduced.

[0023] The capacity of the airbag 104 is preferably 0.5 L to 3.0 L. If it is less than 0.5 L, the air inside the dustproof suit B is not captured and is likely to be released to the outside (clean room). Also, if it is more than 3.0 L, the airbag 104 may get in the way and hinder efficient work.

[0024] The total area of ​​the body holes 109 is preferably 10% to 60% of the area surrounded by the attachment parts 110 where the airbag 104 and the dustproof clothing body 101 are in contact. If it is less than 10%, the speed at which air flows into the airbag 104 slows down, and dust may easily be generated from the head 105 and neck 108. If it is more than 60%, the strength of the area surrounded by the attachment parts 110 weakens, and the dustproof clothing body 101 is easily damaged. In this embodiment, the ratio of the total area of ​​the body holes 109 to the area surrounded by the attachment parts 110 is about 35%. In addition, the body holes 109 are provided with a mesh to increase their strength. In this way, the strength of the dustproof clothing body 101 may be increased by providing the body holes 109 with, for example, a mesh-like reinforcing member so as not to impede the flow of air.

[0025] [Embodiment 2] The airbag 104 with fastener 201 according to this embodiment will be described with reference to Fig. 2. Fig. 2001 is a schematic diagram of the airbag 104 with fastener 201 attached. Fig. 2002 is a schematic diagram of the airbag 104 with fastener 201 seen from the side with a worker standing. Fig. 2003 is a schematic diagram of the airbag 104 with fastener 201 seen from the side with a worker about to sit down.

[0026] As shown in the figure, the airbag 104 according to this embodiment is fitted with a fastener 201. This allows dust that has accumulated inside the airbag 104, which has a complex structure, to be removed by washing the airbag normally with the fastener 201 open. Without the fastener 201, dust would remain inside the airbag 104 even after washing, and would become a source of dust if used repeatedly. However, providing the fastener 201 makes it possible to prevent this from happening.

[0027] Also, the fastener 201 may be provided at the bottom of the airbag 104. The position of the fastener 201 is not particularly limited, but by providing the fastener 201 at the bottom of the airbag 104, the weight of the fastener 201 causes the airbag 104 to deflate when the worker is standing (see FIG. 2002). Therefore, when the worker moves, such as sitting down, the airbag 104 expands, allowing air to flow sufficiently into the airbag 104 (see FIG. 2003). Furthermore, when the worker sits down, that is, when he or she leans forward, the weight of the fastener 201 makes the airbag 104 more likely to expand, and as a result, air can flow in smoothly.

[0028] [Embodiment 3] A dustproof clothing B1 with an airbag in which a seal 301 is attached to a dustproof clothing body 101 according to this embodiment will be described with reference to FIG.

[0029] As shown in FIG. 3, the dustproof clothing B1 is provided with a seal 301 around the neck at the neck 108 of the dustproof clothing body 101. The neck is the area of ​​the dustproof clothing body 101 that surrounds the neck of the worker. The seal 301 reduces the gap between the worker's neck and the neck 108 of the dustproof clothing body 101, thereby reducing the amount of air leaking from the inside of the dustproof clothing body 101 to the outside. In this way, the seal 301 blocks the air that does not flow into the airbag 104, so that the leakage of dust into the clean room can be reduced. The material of the seal 301 may be the same as that of the dustproof clothing body 101, or may be a different material. The thickness (width) of the seal 301 is not particularly limited, but may be, for example, about 0.5 cm to 3 cm. The seal 301 may have cushioning properties so as not to cause discomfort to the worker and to enhance sealing properties. To provide cushioning properties, the seal 301 may contain a cushioning material inside, such as foam resin, cotton, or fibers, such as synthetic fibers.

[0030] [Embodiment 4] The dustproof clothing B2 with seals and airbags according to this embodiment will be described with reference to FIG. 4. FIG. 4 shows FIG. 4001 and FIG. 4002 to explain the configuration of the dustproof clothing B2. FIG. 4001 is a schematic diagram of the configuration of the dustproof clothing B2 with seals and airbags. FIG. 4002 is a schematic diagram of the A-A' cross-sectional structure of the dustproof clothing B2 with seals and airbags. As shown in FIG. 4002, the dustproof clothing body 101 is configured to cover the lower part 102a of the hood 102. Therefore, air inside the dustproof clothing body 101 may leak to the outside through a gap between the dustproof clothing body 101 and the lower part 102a of the hood 102. The dustproof clothing B2 according to this embodiment can reduce the leakage of air from this gap.

[0031] As shown in FIG. 4001, dustproof clothing B2 with a seal and airbag according to this embodiment has an airbag 401 attached around the neck part 108 of the dustproof clothing body 101. Seal 301 is attached to the upper part of the airbag 401 along the neck area. This allows air rising from below to be captured evenly by airbag 401 when a worker makes an action such as sitting down. Also, air that cannot be captured by airbag 401 can be blocked by seal 301.

[0032] In this embodiment, the airbag 401 is attached only around the neck 108 of the dustproof clothing body 101, but the airbag 401 may also be attached to the chest. Moreover, the airbags 401 may or may not be provided with a fastener 201. In this way, each of the above-mentioned components can be added selectively as appropriate according to the conditions.

[0033] 〔summary〕 Dustproof clothing B to B2 relating to aspect 1 of the present disclosure comprises a dustproof clothing main body 101 and an airbag 104, 401 attached to an attachment portion 110 on the outer surface of the dustproof clothing main body 101, and at least one opening (main body hole 109) is provided in the area surrounded by the attachment portion 110, connecting the inside of the dustproof clothing main body 101 with the inside of the airbag 104, 401.

[0034] According to the above configuration, it is possible to reduce leakage of dust into a clean room more than with the conventional technology, and it is possible to provide dustproof clothing that is less expensive than clothing equipped with a suction device.

[0035] The dustproof clothing according to a second aspect of the present disclosure is the dustproof clothing according to the first aspect, wherein the airbag is attached to a chest portion of the dustproof clothing body.

[0036] According to the above-mentioned configuration, it is possible to reduce air leakage from the upper body, where the pumping effect caused by the movement of the worker is large.

[0037] The dustproof clothing according to a third aspect of the present disclosure is the dustproof clothing according to the first or second aspect above, wherein the airbag is attached around the neck of the dustproof clothing body.

[0038] According to the above configuration, the amount of air leaking from around the worker's neck can be reduced.

[0039] The dustproof clothing according to a fourth aspect of the present disclosure is the dustproof clothing of any one of the first to third aspects, wherein a zipper is attached to the airbag.

[0040] According to the above configuration, dust accumulated inside the airbag can be removed by opening the zipper and washing the airbag.

[0041] The dustproof clothing according to a fifth aspect of the present disclosure is the dustproof clothing according to the fourth aspect, wherein the fastener is attached to a lower part of the airbag.

[0042] According to the above configuration, the airbag is more likely to deflate when the worker is standing, and is more likely to expand when the worker is bending or sitting.

[0043] The dustproof clothing according to a sixth aspect of the present disclosure is characterized in that in any one of the first to fifth aspects, the airbag may have a capacity of 0.5L to 3.0L.

[0044] According to the above configuration, the volume of the airbag is adjusted to match the amount of air leaking due to the pumping effect, so that air leakage can be appropriately reduced.

[0045] The dustproof clothing according to a seventh aspect of the present disclosure is any one of the first to sixth aspects, wherein the total area of ​​the openings is 10% to 60% of the area of ​​the region surrounded by the attachment portions.

[0046] According to the above-mentioned configuration, air can easily flow into the airbag, and the strength of the dustproof clothing body can be maintained.

[0047] The dustproof clothing according to an eighth aspect of the present disclosure is any one of the first to seventh aspects, wherein a seal is provided around the neck at the neck portion of the dustproof clothing body.

[0048] According to the above-mentioned configuration, the amount of air expelled from the neck part of the dustproof clothing body can be reduced.

[0049] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. The technical scope of the present disclosure also includes embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Furthermore, new technical features can be formed by combining the technical means disclosed in the respective embodiments. EXAMPLES

[0050] An embodiment of the present disclosure will be described below. The particle measurement carried out by the inventors of the present disclosure demonstrated that the dustproof clothing with airbag of the present disclosure has extremely high dustproofness compared to conventional dustproof clothing. The particle measurement results will be described below with reference to FIG. 5.

[0051] The objects of measurement are a conventional dustproof suit (prior art), a dustproof suit with an airbag attached to the chest (corresponding to embodiment 1), a dustproof suit with an airbag attached to the chest and a seal at the neck (corresponding to embodiments 1 and 3), and a dustproof suit with an airbag attached to the neck and a seal (corresponding to embodiment 4). In a class 100 clean room, the number of particles contained in 1 cubic foot (about 30 cm square) of air near the head when stationary (standing) and when seated was measured five times for each condition. The number of particles was measured using a particle counter, and particles with a size of 0.5 μm or more were counted. As shown in FIG. 5, it was demonstrated that all of the examples have extremely high dustproof performance compared to the dustproof suit of the prior art. [Explanation of symbols]

[0052] 101: Dustproof clothing body 102: Food 103: Boots 104: Airbag according to the first embodiment 105: Head 106: Cuff part 107: Upper part of boots 108: Neck 109: Main body hole (opening) 110: Mounting part (area where the airbag and the dustproof suit are in contact) 201: Zipper 301: Seal 401: Airbag according to the fourth embodiment

Claims

1. The dustproof suit itself, An airbag attached to an attachment portion on the outer surface of the dustproof clothing body, At least one opening is provided in the area surrounded by the attachment portion, the opening communicating the inside of the dustproof clothing body with the inside of the airbag, The airbag is attached to the chest area of ​​the dustproof clothing body. Dustproof clothing characterized by:

2. 2. The dustproof clothing according to claim 1, wherein the air bag is provided with a zipper.

3. 3. The dustproof clothing according to claim 2, wherein the fastener is attached to a lower part of the airbag.

4. 2. The dustproof clothing according to claim 1, wherein the airbag has a capacity of 0.5 to 3.0 liters.

5. 2. The dustproof clothing according to claim 1, wherein a total area of ​​the openings is 10% to 60% of an area of ​​the region surrounded by the attachment parts.

6. 2. The dustproof clothing according to claim 1, wherein a seal is provided around the neck of the dustproof clothing body.

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