JP2008133561A - Dustproof garment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dustproof garment 1 surely eliminating electrostatic charged to a dust-free garment and the human body, and also having favorable sense of use without spoiling workability. <P>SOLUTION: The dustproof garment is structured as follows: connection terminal parts 3 connecting one end part of a grounded earth code 10 are formed at a plurality of portions of a dustproof garment body 2 formed so as to be integral with a long-sleeve upper garment and long trousers with fabric having electrical conductivity. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dust-proof garment including a dust-proof garment and a static eliminator that can reliably remove static electricity from a human body wearing the dust-proof garment without hindering work for handling precision equipment such as a liquid crystal display element.

  Conventionally, when handling precision equipment such as liquid crystal display elements, dust-proof clothing and shoes are worn in a space called dust-proof measures called a clean room, and certain operations are performed (dust-proof clothing). For example, refer to Patent Document 1).

  The dust-proof clothing and dust-proof shoes are non-dust-generating, non-permeable, so-called dust-proof such as surface smoothness, durability against washing, sterilization, etc. Is one of the required performances. This is because static electricity such as dust-proof clothing has various adverse effects such as adsorbing floating foreign substances, causing damage to precision equipment and causing accidents.

  And, it has a static elimination structure that wears dustproof clothing and dustproof shoes that have undergone antistatic treatment, and grounds the static electricity charged on the human body, dustproof clothing, etc. through the dustproof shoes through the conductively treated floor. .

  However, when the dustproof shoes are grounded via the floor, the electrical connection may be deteriorated due to dirt of the dustproof shoes. Therefore, grounding is performed using a wrist strap for the purpose of assisting in the case where the electrical connection between the dustproof shoes and the floor becomes defective and, further, for removing static electricity charged on the human body. (For example, Patent Document 2 discloses a static eliminator using a wrist strap).

JP-A-7-189002 JP 2004-31071 A

  The wrist strap includes a wrist band worn on a human body and an earth cord connecting the wrist band and the earth. In order to effectively function a wrist strap whose main purpose is to release static electricity charged on the human body, it is desirable to attach the wrist band directly to the human body.

  However, when wearing dust-proof clothing and dust-proof shoes as described above, there are limits to the places where the wristband can be worn by directly contacting the human body.

  Further, when the grounding point to which one end of the ground cord is connected is fixed in a clean room, the wristband mounting position (for example, the left and right of the wrist) is changed depending on the standing position during the work, or the wristband The ground cord connected to the cable must be reconnected to the grounding location arranged in the direction not obstructing the work, which is inconvenient and inferior in use.

  Therefore, the present invention aims to provide a dust-proof clothing and a dust-proof clothing that can reliably remove static electricity charged on the human body and that also has a good feeling of use without impairing workability. It is.

  In order to achieve the above-described object, the dust-proof garment of the present invention is one end of an earth cord in which the other end side is grounded at a plurality of positions of the dust-proof garment body integrally formed of a long-sleeved upper garment and long trousers with a conductive fabric. The connection terminal part which connects a part is formed.

  According to the dust-proof clothing of the present invention, if one end portion of the ground cord is connected to any one of the connection terminal portions among the plurality of connection terminal portions formed in the dust-proof clothing body made of conductive cloth. The static electricity of the dust proof clothing can be grounded from the earth cord through the conductive cloth, the low resistance wiring, and the connection terminal portion.

  And, since the connection terminal part is formed at a plurality of locations such as the left and right arms, shoulders, waist, lower limbs and back part of the dust-free clothing body, it can be used for standing position or work operation during work. In addition, it is possible to select the connection terminal portion to which the ground cord is connected at any time, and it is possible to prevent the ground cord from hindering workability.

  In addition, by properly arranging the connection terminal part in the dust-proof clothing body and connecting between them with low resistance wiring, the potential difference of the part in the dust-free clothing body can be suppressed to a smaller level, and the dust-proof clothing can be reliably neutralized. it can.

  Further, the dust-proof clothing of the present invention is integrally formed with a grounding band that is used by attaching a low-resistance metal to the dust-proof clothing body so as to be in direct contact with the human body. It is characterized by that.

  This ground band ensures the continuity between the human body and the dust-proof clothing body, and the static electricity of the human body can be grounded from the ground cord through the dust-free clothing fabric, the low resistance wiring, and the connection terminal portion.

  As described above, according to the dust-proof clothing of the present invention, the static electricity charged in the dust-free clothing and the human body can be surely removed, and the usability can be improved without impairing workability.

  First, the structure of the dust-proof clothing of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the dust-proof garment 1 of the present embodiment has one end of a ground cord 10 grounded at a plurality of locations of a dust-proof garment body 2 in which a long-sleeve upper garment and long trousers are integrally formed of a conductive fabric. The connection terminal portions 3 for connecting the portions are formed, and the plurality of connection terminal portions 3 are connected by the low resistance wiring 4.

  As the fabric of the dust-proof clothing body 2, for example, a second layer made of a solid type superabsorbent polyurethane resin film is spot-bonded on a first layer made of a knitted fabric, A third layer composed of a polyester high-density fabric in which conductive yarns are arranged at predetermined intervals in the weft and warp directions is adhered on the layer, and properties such as dust resistance and conductivity are imparted. Can be dough. As the conductive yarn, various types such as those obtained by coating the surface of the raw yarn with a conductive material such as carbon and nickel, and those obtained by incorporating a conductive material into the raw yarn by composite spinning can be used. In addition, even if fabrics made of conductive yarn are coated with a polyurethane film or polytetrafluoroethylene film as a low dusting material on the surface of the fabric, a fabric with properties such as dust resistance and conductivity can be used. Good.

  In addition, the neck and sleeve ends of the long-sleeved upper garment and the hem of the long trousers are made of rubber, jersey (elastic fabric), etc., and are easy to put on and take off. It is formed so that it can be closely attached.

  And in this embodiment, the wrist band 5 for wrists is electrically connected to the sleeve end portions of the dust-proof clothing main body 2 and is integrally formed. The earth band 5 is a band-like member containing a low-resistance metal, and is formed so that the metal directly contacts the wrist when worn. Specifically, it is conceivable to sew a wide annular earth band 5 having elasticity to the cuffs (see FIG. 1). Further, as shown in FIGS. 2 and 3, a plastic engagement member that can be engaged with one end of a wide ribbon-shaped earth band main body 6 while the other end of the earth band main body 6 is engaged. One side in the longitudinal direction of the earth band 5 provided with the stop member 7 is sewn to the sleeve tip portion of the dust proof clothing 1, and the other end side of the earth band 5 is wound around the wrist while the earth band main body 6 is wound around the wrist. You may form so that it may bite and fix.

  Moreover, in this embodiment, the said connection terminal part 3 is formed in the left-right symmetric position in the arm part, shoulder part, waist | hip | lumbar part, and leg part of the said dust-proof clothing main body 2. As shown in FIG. The connection terminal portion 3 is formed of a metal snap button 3a, and can be fitted into a pair with a snap button disposed at one end of the ground cord 10.

  Further, in the present embodiment, the low resistance wiring 4 as a main line that is made of a copper wire and grounds the static electricity of the dust proof clothing 1 through the ground cord 10 is connected between the connection terminal portions in the dust proof clothing 1. It is formed in this way.

  The connection terminal portion 3 that is not used for connecting the ground cord 10 covers the metal portion of the connection terminal portion 3 with a cover member (not shown) such as a snap-type plastic cap so as not to be exposed to the work space. It is desirable.

  And the dust-proof garment 1 of this embodiment is worn so that the wrist ground band 5 may be wound around the wrist to ensure electrical connection with the human body. Then, among the plurality of connection terminal portions 3 formed on the dust proof clothing main body 2, a metal snap button 11 a as the connection terminal portion 11 disposed at one end portion of the ground cord 10 in any one of the connection terminal portions 3. And a ground jack 11b as the connection terminal portion 11 formed at the other end of the ground cord 10 is used by being connected to a ground location fixedly arranged in a clean room serving as a work space.

  By establishing such a charge removal structure, the static electricity of the dust proof clothing 1 is grounded through the conductive fabric constituting the dust proof clothing main body 2, the low resistance wiring 4 acting as the main line, and the connection terminal portion 3. The cord 10 can be reliably grounded. The ground cord 10 has a built-in resistor of about 1 MΩ as a current limiting resistor. Further, by connecting the human body and the dust-proof clothing body 2 with the earth band 5 attached to the wrist, the static electricity of the human body is also grounded through the dust-free clothing body, the low resistance wiring 4 and the connection terminal portion 3. It is possible to remove the static electricity by grounding from the cord 10.

  At that time, the connection terminal portion 3 is appropriately formed on the arm portion, shoulder portion, waist portion, lower limb portion, etc. of the dust-proof clothing main body 2 and is connected by the low resistance wiring 4 so that the potential difference of each part in the dust-free clothing main body. Can be kept smaller.

  Further, by forming the connection terminal portion 3 in various parts of the dust proof clothing main body 2, the snap button 11a formed on the ground cord 10 is connected at any time according to the standing position or work operation at the time of work. The connection terminal portion 3 can be selected, and the ground cord 10 can be prevented from hindering workability. For example, when the grounding location arranged in the clean room is located on the right side of the worker's standing position, the ground cord 10 is connected using any one of the connection terminal portions 3 formed on the right side of the dust-proof clothing 1. If it is a work that requires little connection or standing, it can be grounded by connecting the ground cord 10 using the connection terminal portion 3 formed on the waist of the dust proof clothing 1 or the long pants. It is possible to prevent the cord 10 from hindering work.

  Furthermore, even when the orientation of the standing position is changed back and forth in the clean room, the snap button 11a of the ground cord 10 is replaced with the snap button 3a of the connection terminal portion 3 formed separately (on the opposite side). Just simple and convenient.

  In addition, even if the dustproof shoe used in combination with the dustproof clothing 1 is separated from the conductively treated floor or the electrical connection is deteriorated, according to the configuration of the dustproof clothing 1 of the present embodiment, it is possible to reliably prevent static electricity. Can be removed.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

  For example, in the present embodiment, the wristband 5 has been described with the wrist groundband 5 formed so as to be wound around the wrist. There may be provided both for wrist and for ankle.

  Furthermore, the structure of the connection terminal portion 3 and the connection terminal portion of the ground cord 10 connected to the connection terminal portion 3 is not limited to the above-described metal snap button 3a, and is, for example, a connection structure using a hook clip or the like. Also good.

Explanatory drawing of dustproof clothing of one embodiment of the present invention and its static elimination structure Explanatory drawing which shows an example of arrangement | positioning of the earth band in the dust-proof clothing of this invention Explanatory drawing which shows the wearing condition of the dust-proof clothes of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust-proof clothing 2 Dust-proof clothing main body 3 Connection terminal part 3a Snap button 4 Low resistance wiring 5 Ground band 6 Ground band body 7 Locking member 10 Ground cord 11 Connection part 11a Snap button 11b Ground jack

Claims (3)

Connection terminals that connect one end of the ground cord with the other end grounded are formed at multiple locations on the dust-proof clothing body, which is formed of a conductive fabric and long sleeve upper garment and long pants. Dust-proof clothing featuring. The dust-proof clothing according to claim 1, wherein the plurality of connection terminal portions are connected by a low resistance wiring. The dust-proof clothing according to claim 1 or 2, wherein a low-resistance metal is incorporated in the dust-proof clothing body, and an earth band that is attached so as to be in direct contact with the human body is electrically connected and integrally formed. clothes.

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