WO2009116148A1

WO2009116148A1 - Clean suit and clean suit set

Info

Publication number: WO2009116148A1
Application number: PCT/JP2008/055064
Authority: WO
Inventors: 智秀仲島
Original assignee: 富士通株式会社
Priority date: 2008-03-19
Filing date: 2008-03-19
Publication date: 2009-09-24
Also published as: JPWO2009116148A1

Abstract

A clean suit is formed of a given cloth (12). A conductive obverse-side coupler (19) is fixed to the obverse side of the cloth (12). A conductive reverse-side coupler (25) is fixed to the reverse side of the cloth (12). The reverse-side coupler (25) is electrically connected to the obverse-side coupler (19). The human body (H) of a clean suit wearer and an outside ground wire (48) can be connected to each other via the obverse-side coupler (19) and reverse-side coupler (25). Thus, any static electricity generated on the human body (H) of the wearer can escape to the ground wire (48). It is not needed for the wearer to have a wristband on his arm. As a result, the danger of dropping of parts and products can be cast aside.

Description

Clean suit and clean suit set

The present invention relates to a clean suit mounted in a so-called clean room.

Electrostatic wristbands are widely known. The wristband has a band. An electrode is supported on the band. An earth strap is connected to the electrode. A mounting coupler is attached to one end of the ground strap. The mounting coupler is connected to the wristband electrode. A connection terminal is attached to the other end of the ground strap. The connection terminal is connected to a fixed ground wire. When the strip is wrapped around the operator's wrist, the electrode contacts the operator's skin. Human body voltage flows from the worker's skin to the electrodes. In this way, static electricity is released from the worker to ground.
Japanese Utility Model Registration No. 2541029 Japanese Utility Model Registration No. 2584221 Japanese Unexamined Patent Publication No. 60-9902

During the work, the worker moves his hand. The ground strap moves as your hand moves. If the ground strap gets caught on the part or product to be worked on the desk, the part or product may be dropped. In addition, when the ground strap comes into contact with a component or product, dust is transferred from the ground strap to the component or product.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a clean suit capable of reducing the charging voltage of a human body while reliably preventing parts and products from falling.

In order to achieve the above-mentioned purpose, the clean suit is fixed to the front side of the fabric and electrically connected to the front side coupler, fixed to the back side of the fabric, and a conductive front side coupler that receives the attachment of the other coupler, A conductive backside coupler that receives the attachment of the other coupler.

In such a clean suit, electrical continuity is obtained between the front and back sides of the fabric. As a result, the human body of the clean suit wearer and the external ground wire can be connected through the front side coupler and the back side coupler. In this way, static electricity generated in the wearer's human body can escape to the ground wire. The wristband need not be worn on the wearer's arm. As a result, the fear of falling parts and products can be eliminated.

Clean suits such as the above can provide a clean suit set. The clean suit set consists of the fabric that forms the clean suit, the conductive front side coupler that is fixed to the front side of the fabric and receives the attachment of the other coupler, and the back side of the fabric that is electrically connected to the front side coupler. An inner ground strap that has a conductive back side coupler and a mounting coupler attached to the back side coupler at one end and a conductive pad that adheres to the human body at the other end, and establishes continuity from the back side coupler to the conductive pad Can be provided.

It is a top view which shows the whole image of a clean suit. It is an enlarged view which shows the inside of a clean suit schematically. It is an expanded sectional view of a front side coupler and a back side coupler. It is an enlarged plan view of a front side coupler. FIG. 4 is an enlarged cross-sectional view corresponding to FIG. 3 and showing a front-side coupler and a back-side coupler when first and second ground straps are connected.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a specific example of the clean suit 11. The clean suit 11 is sewn from a predetermined fabric 12. The fabric 12 of the clean suit 11 includes a body part 13 that covers the circumference of the wearer's torso. A collar 14 is defined at the upper end of the body part 13. A hood 15 is coupled to the collar opening 14.

A pair of sleeves 16 extending to the left and right sides and covering the left and right arms of the wearer are joined to the upper end of the body part 13. A cuff 16 a is defined at the tip of each sleeve 16. A pants part 17 is coupled to the lower end of the body part 13. A so-called connection is formed. The pants part 17 includes a pair of tube parts 18 that cover the left and right legs of the wearer. A skirt port 18 a is defined at the tip of each cylindrical portion 18.

On the back side of the body part 13, a cut (not shown) is made from the collar opening 14 toward the pant part 17. A fastener is attached to this notch. The wearer can enter the body part 13 from the cut. At this time, both legs of the wearer are passed through the cylindrical portion 18 of the pants portion 17. The wearer's foot protrudes from the hem port 18a. Both arms of the wearer are passed through the sleeve 16. The wearer's hand protrudes from the cuff 16a. When the fastener is raised, the notch is closed. The wearer's head protrudes from the collar 14. A hood 15 is put on the head.

A front side coupler 19 is attached to the front side of the fabric 12. For example, one front-side coupler 19 is fixed at a position corresponding to the left and right flank. In addition, the front-side couplers 19 may be fixed one by one at positions corresponding to the left and right shoulders, for example. The front side coupler 19 should just be installed in the position corresponding to at least any one of a flank or a shoulder. The front side coupler 19 may be molded from a conductive material. Here, for example, a metal material such as stainless steel or copper may be used. In addition, a conductive resin may be used as the conductive material.

2, a first ground strap 21 is connected to the back side of the fabric 12. A mounting coupler 22 is coupled to one end of the first ground strap 21. A conductive ground pad 23 is coupled to the other end of the first ground strap 21. The conductive ground pad 23 and the mounting coupler 22 are electrically connected by the action of the ground strap wire 24. In this way, conduction is established from the mounting coupler 22 to the conductive ground pad 23. The conductive ground pad 23 includes, for example, a resin support and a conductive gel laminated on the surface of the support. The conductive gel is electrically connected to the ground strap wire 24. When the conductive gel is in close contact with the human body, static electricity of the human body is guided from the conductive gel to the mounting coupler 22.

As shown in FIG. 3, on the back side of the fabric 12, back side couplers 25 are attached to individual front side couplers 19 back to back. The back side coupler 25 may be molded from a conductive material. Here, for example, a metal material such as stainless steel or copper may be used. In addition, a conductive resin may be used as the conductive material. The above-described mounting coupler 22 is connected to any one back-side coupler 25. Electrical continuity is established between the backside coupler 25 and the mounting coupler 22.

When the front side coupler 19 and the back side coupler 25 are fixed, for example, the front side coupler 19 may be fitted into the back side coupler 25. On the contrary, the back side coupler 25 may be fitted into the front side coupler 19. At this time, the fabric 12 is sandwiched between the front side coupler 19 and the back side coupler 25. It is only necessary that an opening 26 be defined in the fabric 12 between the front side coupler 19 and the back side coupler 25 for fitting. The front side coupler 19 and the back side coupler 25 may be in direct contact with each other through the opening 26. As a result, the front side coupler 19 and the back side coupler 25 are electrically connected. However, the electrical connection may be established between the front side coupler 19 and the back side coupler 25 by any means.

The front side coupler 19 includes a male snap 27, for example. The male snap 27 includes a disk-shaped main body 27 a that is superposed on the front surface of the fabric 12. A protrusion 27b rises vertically from the center of the main body 27a. The protrusion 27b has a large portion 28 at the tip. In the projection 27b, a constriction 29 is defined between the enormous portion 28 and the main body 27a.

Similarly, the back side coupler 25 includes a male snap 31, for example. The male snap 31 includes a disk-shaped main body 31 a that is superimposed on the back surface of the fabric 12. A protrusion 31b rises vertically from the center of the main body 31a. The protrusion 31b has a huge portion 32 at the tip. The projection 31b defines a constriction 33 between the enormous portion 32 and the main body 31a.

The mounting coupler 22 has a female snap 34. The female snap 34 is embedded in, for example, a resin casing 35. The female snap 34 has a recess 36 that receives the protrusion 31b of the male snap 31, for example. A pair of bar springs 37 is incorporated in the recess 36. The bar springs 37 extend parallel to each other and cross the entrance of the recess 36. The interval between the bar springs 37 is set smaller than the enormous portion 32 of the protrusion 31b. At the same time, the interval between the bar springs 37 is set larger than the constriction 33 of the projection 31b. When the enormous portion 32 of the protrusion 31b is pushed between the bar springs 37, the bar spring 37 curves outward. Thus, the enormous part 32 enters between the bar springs 37. When the enormous portion 32 passes, the constriction 33 is sandwiched between the bar springs 37. The bar spring 37 returns to linear. Omission of the enormous part 32 is prevented. Thus, the mounting coupler 22 is detachably fixed to the back side coupler 25. The coupling based on the female snap 34 and the male snap 31 may be used for coupling the conductive ground pad 23 and the ground strap wire 24 described above.

As shown in FIG. 4, conductive fibers 39 are inserted into the fabric 12 in a lattice shape. The conductive fiber 39 may be knitted into the fabric 12. A conductive fiber 39 is sandwiched between the front side coupler 19 and the back side coupler 25. Thus, the conductive fiber 39 is electrically connected to the front side coupler 19 and the back side coupler 25. As a result, the static electricity of the fabric 12 of the clean suit 11 can be released from the front coupler 19. Charging of the fabric 12 of the clean suit 11 can be prevented. At this time, in the front side coupler 19 and the back side coupler 25, the diameters of the main bodies 27a and 31a of the male snaps 27 and 31 may be set larger than the interval between the conductive fibers 39. According to these settings, the conductive fiber 39 can be sandwiched between the front side coupler 19 and the back side coupler 25 without regard to the position of the fabric 12. Conductivity can be ensured reliably. In addition, an electrical connection may be established between the front side coupler 19 and the back side coupler 25 based on the use of the conductive fiber 39.

Now, assume a scene where the clean suit 11 is worn. As shown in FIG. 5, the wearer couples the attachment coupler 22 of the first ground strap 21 to the back-side coupler 25 of the clean suit 11. At the same time, the wearer brings the conductive gel of the conductive ground pad 23 into close contact with the skin of the abdomen H, for example. In this way, a static electricity conduction path from the body to the back coupler 25 is secured.

After that, the wearer connects the second ground strap 41 to the front coupler 19 of the clean suit 11. An attachment coupler 42 attached to the front-side coupler 19 is coupled to one end of the second earth strap 41 in the same manner as the first earth strap 21 described above. Electrical conduction is established between the front coupler 19 and the mounting coupler 42. A connection terminal 43 is coupled to the other end of the second ground strap 41. The connection terminal 43 and the mounting coupler 42 are electrically connected by the action of the ground strap wire 44. Thus, conduction is established from the mounting coupler 42 to the connection terminal 43. The connection terminal 43 includes a plug 46, for example. The plug 46 is inserted into, for example, a jack 47 installed in the work place. A ground wire 48 is connected to the jack 47. Thus, the connection terminal 43 is connected to the ground wire 48. A static electricity path from the front coupler 19 to the ground wire 48 is secured. As a result, static electricity generated in the wearer's human body can escape to the ground wire 48.

According to the clean suit 11 as described above, the second ground strap 41 extends from the shoulder or side of the wearer to the ground wire 48. Therefore, even if the wearer moves his / her hand during work, the movement of the second ground strap 41 can be avoided. Contact between the second ground strap 41 and the part or product to be worked can be prevented. Concerns about falling parts and products can be eliminated.

In the clean suit 11, the front-side coupler 19 is installed at a position corresponding to the left and right flank and a position corresponding to the left and right shoulders. Therefore, the second ground strap 41 can be connected to the front-side coupler 19 from either the left or right side. The left and right positions can be appropriately selected according to the arrangement of the jack 47 of the ground wire 48. The worker can always perform the work without being obstructed by the second ground strap 41.

Claims

Conductive front-side coupler fixed to the front side of the fabric and receiving attachment of the other-party coupler, and conductive back-side coupler fixed to the back side of the fabric and electrically connected to the front-side coupler and receiving attachment of the other-side coupler A clean suit characterized by comprising
The clean suit according to claim 1, wherein the front-side coupler is a snap.
2. The clean suit according to claim 1, wherein the back side coupler is a snap.
2. The clean suit according to claim 1, wherein conductive fibers connected to at least one of the front side coupler and the back side coupler are inserted into the fabric.
The clean suit according to claim 1, wherein the fabric includes a body part that covers the user's torso and a pair of sleeve parts that extend from the upper end of the body part to the left and right sides and covers the user's left and right arms. A pant part coupled to the lower end of the body part and covering the left and right legs of the user, wherein the front coupler and the back coupler are installed one by one at a position corresponding to the left and right flank Clean suit to do.
The clean suit according to claim 1, wherein the fabric includes a body part that covers the user's torso and a pair of sleeve parts that extend from the upper end of the body part to the left and right sides and covers the user's left and right arms. And a pants part coupled to the lower end of the body part and covering the left and right legs of the user, wherein the front side coupler and the back side coupler are installed in a pair corresponding to the left and right shoulders. Clean suit to do.
The fabric that forms the clean suit, the conductive front-side coupler that is fixed to the front side of the fabric and receives the attachment of the other coupler, and the conductive back-side coupler that is fixed to the back side of the fabric and electrically connected to the front-side coupler And a mounting coupler that is attached to the back side coupler at one end, a conductive pad that is in close contact with the human body at the other end, and an inner ground strap that establishes conduction from the back side coupler to the conductive pad. A featured clean suit set.
The clean suit set according to claim 7, wherein the front-side coupler is a snap.
The clean suit set according to claim 7, wherein the back side coupler is a snap.
8. The clean suit set according to claim 7, wherein conductive fibers connected to at least one of the front side coupler and the back side coupler are inserted into the fabric.
8. The clean suit set according to claim 7, wherein the fabric includes a body part covering a user's torso and a pair of sleeve parts extending from the upper end of the body part to the left and right sides to cover the user's left and right arms. And a pant part that is coupled to the lower end of the body part and covers the left and right legs of the user, wherein the front coupler and the back coupler are installed in pairs corresponding to the left and right flank. A clean suit set.
8. The clean suit set according to claim 7, wherein the fabric includes a body part covering a user's torso and a pair of sleeve parts extending from the upper end of the body part to the left and right sides to cover the user's left and right arms. And a pants part that is coupled to the lower end of the body part and covers the left and right legs of the user, wherein the front side coupler and the back side coupler are installed one by one at positions corresponding to the left and right shoulders. A clean suit set.
8. The clean suit set according to claim 7, wherein one end has a mounting coupler attached to the front side coupler, and the other end has a connection terminal connected to a ground wire, and conducts from the front side coupler to the connection terminal. A clean suit set, further comprising an established outer ground strap.