JP2007059215A - Discharged brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharged brush having fibrous electrodes pinched between flexible holding members, capable of obtaining adhesion strength to a case of an OA-apparatus or the like, the fibrous electrodes can be grounded even if majority of a sticking part of the case is made of non-conductive material, exerting discharge property. <P>SOLUTION: The discharged brush 21 is formed by pinching respective end part of a large number of fibrous electrodes 22 arranged in a plane between a rectangular tape-shaped front surface member 24 and a tape-shaped back surface member 25. The fibrous electrodes are made to almost perpendicularly cross a conductive fiber 23 to make them conductive with each other. The fibrous electrodes are arranged over almost whole part in longitudinal direction of the tape-shaped front surface member. A conductive fiber exposed part where the conductive fiber is partly exposed, and a non-conductive sticking layer for fixing the conductive fiber to the fibrous electrodes are formed. A non-conductive sticking layer 28 is formed on a face of the tape-shaped back face member not facing the tape-shaped front face member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a self-discharge type static elimination brush for removing static electricity, which is used by being attached to an OA device.

In office automation equipment such as a printer, a copying machine, and a facsimile machine, a self-discharge type static elimination brush is provided in order to remove the charge of paper or a synthetic resin film as an output medium. Many of the static eliminating brushes have a structure in which a fibrous electrode is implanted between holding members such as an aluminum plate, and are installed in an OA device or the like with screws or the like.
In recent years, with the miniaturization of OA equipment and the like, there has been a demand for a static elimination brush that can be easily attached and can be attached to a curved surface portion, and has a structure in which a fibrous electrode is sandwiched between flexible holding members such as aluminum foil. Brushes are frequently used (see Patent Documents 1 to 3). Such a static elimination brush is installed by sticking to housing | casings, such as OA apparatus, via the adhesive material apply | coated to the single side | surface of a holding member.

By the way, in order to exhibit the performance of the self-discharge type static elimination brush, it is necessary to ground the fiber electrode to a conductive portion such as a metal of the casing. As a means for grounding a static elimination brush having a structure in which a fibrous electrode is sandwiched by a flexible holding member such as an aluminum foil, conventionally, a conductive adhesive tape is used for the holding member on the side to be adhered, and a metal or the like of a housing is used. It was stuck on the conductive metal part.
However, the conductive adhesive tape is expensive, and has a drawback that the adhesive strength is lower than that of a normal non-conductive adhesive tape, and depending on the surface state of the sticking part, the sticking static elimination brush may fall off. was there. In addition, the housing of OA equipment and the like has been made of resin, and there is a problem that grounding cannot be performed via the conductive adhesive tape when the static elimination brush attaching part is a non-conductive material.

Japanese Utility Model Publication No. 3-124598 JP-A-5-258890 Japanese Patent No. 2590792

  The present invention provides a static elimination brush having a structure in which a fibrous electrode is sandwiched between flexible holding members such as aluminum foil, and sufficient adhesion strength to a housing such as an OA device can be obtained. An object of the present invention is to provide, at a low cost, a neutralizing brush that can ground the fiber electrode even if the majority of the material is a non-conductive material and that sufficiently exhibits the neutralizing performance.

The neutralizing brush of the present invention is (1) a neutralizing brush in which each one end portion of a large number of fibrous electrodes arranged in a plane and substantially in parallel is sandwiched and fixed by a tape-shaped surface member and a tape-shaped back surface member. Conductive fibers intersecting in a direction substantially perpendicular to the fibrous electrode and electrically connected to the fibrous electrode so as to be energized are disposed over substantially the entire length in the longitudinal direction of the tape-shaped surface member. A conductive fiber exposed portion that is partially exposed is formed, and the fibrous electrode and the conductive fiber are placed on the surfaces of the tape-shaped surface member and the tape-shaped back member facing each other, and the tape-shaped surface member and the tape-shaped back surface member. And forming a non-conductive adhesive layer on the surface of the tape-shaped back member that is not opposed to the tape-shaped surface member, Electric Discharging brush, wherein the incorporated charge that so as to charge elimination by way of the conductive fibers exposed portion.
At this time, (2) the length in the longitudinal direction of the tape-shaped back member is made shorter than the length in the longitudinal direction of the tape-shaped surface member, and the conductive fiber is projected from the end of the tape-shaped back member. The conductive fiber exposed portion may be formed at the end of the tape-shaped back member by (3), or the conductive fiber exposed portion is formed by partially missing the tape-shaped back member. (4) From the surface of the tape-shaped surface member (that is, the surface not facing the tape-shaped back surface member) in the exposed portion of the conductive fiber, it is plastic in a recessed state toward the surface on the back side. A deformed recess may be formed.

  Moreover, the static elimination brush of this invention is (5) The static elimination brush formed by pinching and fixing each one end part of many fibrous electrodes arranged in plane and substantially in parallel with a tape-shaped surface member and a tape-shaped back surface member. In addition, a conductive fiber which is crossed in a direction substantially orthogonal to the fibrous electrode and connected to the fibrous electrode so as to be energized is disposed over substantially the entire length in the longitudinal direction of the tape-shaped surface member, and the tape-shaped A part of the back surface member is a conductive tape-shaped back surface member made of a conductive member having a conductive adhesive layer formed on a surface not facing the tape-shaped surface member, and the tape-shaped surface member and the tape-shaped back surface A non-conductive adhesive layer for fixing the fibrous electrode and the conductive fiber to the tape-like surface member and the tape-like back member is formed on the surface facing the member, and the fibrous electrode May be one which is characterized in that Ri filled-in charge was to neutralization via the conductive adhesive layer is formed portion of the tape-shaped back member.

  According to the static eliminating brush of the present invention, the conductive material that sticks to the casing of the device that needs static elimination through the non-conductive adhesive layer formed on the tape-like back surface member of the static eliminating brush and crosses the fibrous electrode. By providing a conductive fiber, the charge adsorbed on each fibrous electrode can be collected into the conductive fiber, and then the case can be directly energized through the conductive fiber exposed portion and the conductive adhesive layer. Therefore, it is possible to effectively remove static electricity by grounding the casing of the device.

  In addition, the adhesive strength is stronger than when pasted with a conventional conductive adhesive tape, and there is very little risk of the attached static elimination brush falling off. Therefore, the neutralizing brush can be provided at a low cost.

1-3 is a figure which shows the 1st example of an embodiment of the static elimination brush of this invention, FIG. 1 is the schematic perspective view, FIG. 2 is the partially broken front view partially broken, 3 is a cross-sectional view showing a cross section cut along the AA plane in FIG.
The neutralizing brush 1 of this example has a rectangular elongated shape as shown in FIGS. 1 to 3, and is planar and substantially parallel between the tape-shaped surface member 4 and the tape-shaped back surface member 5 facing each other in parallel. And arranged in the longitudinal direction of the tape-like surface member 4 and the tape-like back surface member 5 in a state where they are connected so as to be energized. The conductive fibers 3 thus made are sandwiched and fixed at each end portion of the fibrous electrode 2. Each other end portion of the fibrous electrode 2 is exposed to the outside of the tape-like surface member 4 and the tape-like back surface member 5.

  Furthermore, the arrangement width of the fibrous electrodes 2 arranged in a plane and substantially in parallel is substantially the same as the length in the longitudinal direction of the tape-like back member 5, and the length of the conductive fibers 3 is the arrangement of the fibrous electrodes 2. Make it protrude longer than the area where it is. And the length of the longitudinal direction of the tape-shaped surface member 4 is longer than the length of the tape-shaped back surface member 5, and is made substantially the same as the length of the conductive fiber 3, thereby making the conductive fiber 3 the end of the tape-shaped back surface member 5. The conductive fiber exposed part B exposed from the part is provided.

The tape-shaped back member 5 is a mounting portion to a housing of an OA device or the like for removing static electricity from the static elimination brush 1 (hereinafter also simply referred to as “a housing of an OA device”). A non-conductive pressure-sensitive adhesive layer 6 is formed on the surface (the surface not facing the tape-shaped surface member 4), and the neutralizing brush of the present invention can be used for OA equipment or the like through the non-conductive pressure-sensitive adhesive layer 6. Attached to the housing for use. As a material for the non-conductive adhesive layer 6, for example, an acrylic, rubber, silicon, urethane, or the like adhesive material can be used.
By forming the non-conductive adhesive layer 6 on at least one of the surfaces of the tape-shaped surface member 4 and the tape-shaped back member 5 facing each other, the fibrous electrode 2 and the conductive fiber 3 are bonded to the tape-shaped surface member 4 and It can be firmly fixed by the tape-like back member 5. Further, since the non-conductive adhesive layer 6 is used as the adhesive layer, the manufacturing cost can be further reduced as compared with the case where the conductive adhesive layer is used as the adhesive layer.

On the inner surfaces of the tape-shaped surface member 4 and the tape-shaped back surface member 5 (surfaces facing each other), the fibrous electrode 2 and the conductive fiber 3 are formed on the tape-shaped surface member 4 and the tape-shaped back surface member 5, respectively. Non-conductive adhesive layers 7 and 7 for fixing are formed. Therefore, it is possible to easily collect the charge adsorbed on each of the fibrous electrodes 2, 2. The non-conductive adhesive layers 7 and 7 are not necessarily formed on each of the tape-shaped surface member 4 and the tape-shaped back surface member 5 except for the portion where the conductive fibers 3 are exposed (conductive fiber exposed portion B). It may be formed only on the inner surface of one of the surface-like surface member 4 and the tape-like back surface member 5. However, it is necessary to electrically connect the conductive fiber and the housing of the OA device or the like, that is, when the tape-like back member 5 and the housing are attached via the non-conductive adhesive layer 6, Since it is preferable that the conductive fiber is in contact with the housing, the non-conductive adhesive layer 7 is provided on the inner surface of the tape-shaped surface member 4 in the portion where the conductive fiber 3 is exposed (conductive fiber exposed portion B). In the conductive fiber exposed portion B, the inner surface of the tape-shaped surface member 4 and the housing are adhered via the non-conductive adhesive layer 7 (the conductive fibers are in contact with the housing).
As a material for the non-conductive adhesive layer 7, for example, an acrylic, rubber, silicon, urethane, epoxy, polyolefin, or other solvent, thermoplastic or thermosetting adhesive can be used. .

The tape-shaped front member 4 and the tape-shaped back member 5 are made of a metal foil such as an aluminum foil, a synthetic resin film or sheet such as a polyester film, polyethylene or polyurethane, paper, a laminate of these, and the like, and is flexible. A tape-shaped member having the following is used.
As the fibrous electrode 2, stainless steel fibers (conductive fibers), copper, metal fibers such as amorphous alloys, carbon fibers, synthetic fibers coated with a conductive polymer or copper sulfide, metal dyed fibers, or the like are used. . Moreover, conductive fabrics (woven fabrics) such as nonwoven fabrics, woven fabrics, and knitted fabrics of these conductive fibers may be used.

  As the conductive fiber 3, stainless steel fiber, amorphous metal fiber, other metal fiber, carbon fiber, conductive organic fiber, conductive non-woven fabric cut into a strip shape, etc. can be used, but the same as the fibrous electrode 2. By using a material, the constituent material is reduced, and it is also preferable from the viewpoint of manufacturing the electrode 2 and the fiber 3.

  In order to manufacture the static elimination brush 1, for example, the nonconductive adhesive layer of the tape-like back member 5 in which the nonconductive adhesive layer 6 is first formed on one surface and the nonconductive adhesive layer 7 is formed on the other surface, respectively. 7, the conductive fiber 3 longer than the length of the tape-like back member 5 in the longitudinal direction is placed in parallel with the longitudinal direction thereof. Next, the fibrous electrodes 2 are arranged on the tape-like back member 5 so as to intersect with the conductive fibers 3 from above the conductive fibers 3 so as to be substantially orthogonal to each other. Thereafter, a tape-like surface member 4 having a non-conductive adhesive layer 7 formed on one side thereof and having a length in the longitudinal direction longer than that of the tape-like back member 5, and a surface on which the non-conductive adhesive layer 7 is formed is a tape. The fibrous electrode 2 and the conductive fiber 3 may be sandwiched and fixed between the tape-shaped surface member 4 and the tape-shaped back surface member 5 by overlapping and pressing in the direction facing the surface-shaped back surface member 5.

  When using the static elimination brush of this invention, the surface in which the nonelectroconductive adhesion layer 6 of the tape-like back member 5 was formed is stuck on housing | casings, such as OA apparatus, and the fibrous electrode 2 is made to contact an electrostatic generation material. Then, the conductive fiber exposed portion B and the conductive portion of the housing of the OA device or the like are directly attached to enable energization. In this way, the charge adsorbed on each fibrous electrode 2 can be collected by the conductive fiber 3, and then, for example, a ground terminal or the like on the housing side (not shown) via the conductive fiber exposed portion B The electricity is removed by being grounded through the wire. Furthermore, the exposed portion B is a portion where the conductive fiber 3 is partially exposed, and the remaining portion is sandwiched between the tape-like surface member 4 and the tape-like back surface member 5, so that the conductive fiber 3 is It is hard to drop off.

  FIG. 4 is a perspective view showing a second embodiment of the static elimination brush of the present invention. The static elimination brush of this embodiment example is each structure except the point which provided the conductive fiber exposure part B in the static elimination brush 1 of the said 1st embodiment example in places other than an edge part instead of forming in an edge part. It is the same as that of the static elimination brush 1 of the said 1st embodiment example also including the raw material of a member.

  In other words, the neutralizing brush 11 of the second embodiment example has a fibrous electrode 12 between the tape-shaped surface portion 14 and the tape-shaped back surface portion 15 each having a rectangular shape, and substantially orthogonal to the fibrous electrode 12. The conductive fibers 13 disposed in the longitudinal direction of the tape-like back member 15 (and the tape-like surface member 14) in a state where they intersect with each other and are electrically connected to each other at one end of the fibrous electrode 12 Hold and fix. However, the tape-shaped back member 15 opposes the two tape-shaped back members 15 and 15 in parallel with the tape-shaped surface member 14 at a certain interval in the longitudinal direction. The conductive fiber exposed portion B is formed by partially exposing the conductive fiber 13 from the gap between the two tape-like back members 15 and 15.

  In the neutralizing brush 11, for example, first, two tape-like back members 15 each having a non-conductive adhesive layer 16 formed on one surface and a non-conductive adhesive layer 17 formed on the other surface are spaced apart from each other by a predetermined interval. The conductive fibers 13 having the length of the tape-like surface member 14 are placed on each non-conductive adhesive layer 17 substantially in parallel with the longitudinal direction thereof. Next, the fibrous electrodes 12 are arranged on the tape-like back member 15 so as to intersect with the conductive fibers 13 from above the conductive fibers 13 so as to be substantially orthogonal to each other. At this time, the fibrous electrode 12 may or may not be arranged in the gap between the two tape-like back members 15 and 15. Next, a tape-like surface member 14 having a non-conductive adhesive layer 17 formed on one side is superposed from the surface of the non-conductive adhesive layer 17 and pressed to be the same as the static elimination brush 1 of the first embodiment. Manufactured.

  Contrary to the above, a non-conductive adhesive layer 17 is formed on one surface of the tape-like surface member 14, the fibrous electrode 12 is arranged on the layer 17, and the conductive electrode is formed on the fibrous electrode 12. The fibers 13 may be placed, and the tape-like back members 15 and 15 may be arranged, overlapped, and pressed on the fibers 13 at regular intervals.

  In the static eliminating brush 11 of this example, the non-conductive adhesive layer 16 formed on the surface of the tape-like back surface portion 15 on the side not facing the tape-like surface member 14 is directly attached to a housing such as an OA device. The electric charges absorbed and collected by each of the fibrous electrodes 12 are collected by the conductive fibers 13, and then, for example, on the housing side of the OA equipment or the like through the exposed conductive fibers 13 in the conductive fiber exposed portion B. Static electricity is removed by grounding via a ground terminal or the like.

  FIG. 5 is a perspective view showing another embodiment of the second embodiment of the neutralizing brush of the present invention (the neutralizing brush 11). The neutralizing brush 11 of this example is partially missing. The neutralizing brush 11 of the second embodiment shown in FIG. 4 is provided except that a single tape-like back member 15 is used and a conductive fiber exposed portion B is formed so that the conductive fiber 13 is exposed in the missing portion. The configuration is the same as that.

  FIG. 6 is a cross-sectional view showing a cross section of the static eliminating brush 11 illustrated in FIG. 5 taken along the CC plane. In the static elimination brush 11 (illustrated in FIGS. 4 and 5) shown in the second embodiment, the tape-like surface member 14 in the conductive fiber exposed portion B is disposed on the front side (the side not facing the tape-like back surface member 15). It is desirable to form a recessed portion 18 that is plastically deformed into a recessed state around a location corresponding to the portion where the conductive fiber 13 is disposed by pressing or the like from the surface of By forming the recessed portion 18 in this manner, the conductive fiber 13 protrudes on the surface on the opposite side of the recessed portion 18, so that the tape-like back surface portion 15 is attached to the OA device or the like via the non-conductive adhesive layer 16. When affixed to the case, the non-conductive adhesive layer 16 is not provided on the back side of the tape-like surface member 14 (the surface facing the tape-like back member 15). It is also preferable because the grounding from the fibrous electrode 12 to the housing can be satisfactorily performed.

  In addition, also in the static elimination brush 1 (FIGS. 1-3) of the said 1st embodiment example, the tape-shaped surface member 4 in the conductive fiber exposure part B is the front side (side which does not confront the tape-shaped back surface member 5). A concave portion such as the concave portion 18 (FIG. 6) may be provided on the surface, and the nonconductive adhesive material layer 7 may not be formed in this portion.

  FIG. 7 is a perspective view showing a third embodiment of the static elimination brush of the present invention. Although the static elimination brush of this embodiment example differs from the static elimination brush 1 and the static elimination brush 11 of the said 1st and 2nd embodiment example in the point which does not provide the conductive fiber exposure part B, each member used and its manufacture The method is the same as that of the static eliminating brush 1 and the static eliminating brush 11 of the first and second embodiment examples, and the manufacturing method thereof is substantially the same as that of the static eliminating brush 1 and the static eliminating brush 11 of the first and second embodiment examples. Manufactured.

The neutralizing brush 21 of the present embodiment example intersects a fibrous electrode 22 and a direction substantially perpendicular to the fibrous electrode 22 between a tape-shaped surface portion 24 and a tape-shaped back surface portion 25 each having a rectangular shape. Then, the conductive fibers 23 disposed in the longitudinal direction of the tape-like surface member 24 and the tape-like back surface member 25 in an electrically connected state are sandwiched and fixed at one end of the fibrous electrode 22. . However, a part of the tape-like back member 25 (in this example, the end of the tape-like back member 25) has at least a conductive member and a conductive adhesive layer on its back surface (the surface not facing the surface member 24). It is the characteristic that it has the structure which formed 28 (a part of tape-like back surface member 25 is a conductive tape-like back surface member). A non-conductive adhesive layer 26 is formed on a portion of the tape-like back member 25 on the side not facing the front surface member 24 where the conductive adhesive layer 28 is not formed.
As a material for the conductive adhesive layer 28, for example, an acrylic, rubber-based, silicon-based, urethane-based, epoxy-based or polyolefin-based adhesive containing a conductive substance can be used. As the conductive material, for example, iron, aluminum, carbon, metal oxide, or the like can be used.

When using the static elimination brush 21 of this example, the tape-like back surface member 25 is stuck to a housing of an OA device or the like by the non-conductive adhesive layer 26 and the conductive adhesive layer 28 and is adsorbed to each fibrous electrode 22. The electric charge is collected by the conductive fiber 23, and then the charge is removed by, for example, grounding via a ground terminal or the like on the housing side through the portion where the conductive adhesive layer 28 is formed in the tape-like back surface portion 25. The
Furthermore, since the conductive fiber 23 is sandwiched between the tape-shaped surface member 24 and the tape-shaped back surface member 25, the conductive fiber is difficult to drop off. Note that the position where the tape-like back surface member 25 having the conductive adhesive layer 28 formed on the back surface (the surface opposite to the surface facing the front surface member 24) is tape-shaped as illustrated in FIG. It is not necessary to use the end portion of the back surface member 25, and it can be appropriately changed according to a possible position such as grounding in a housing of an OA device to be mounted.

  The present invention is used by being mounted on an OA device or the like as a static eliminating brush for removing static electricity in an OA device such as a copying machine, a printing machine, or a facsimile machine.

It is a schematic perspective view which shows one embodiment of the static elimination brush of this invention. It is a partially broken front view which shows the example of 1 embodiment of the static elimination brush of this invention. It is a schematic cross-sectional view showing an embodiment of the static elimination brush of the present invention. It is a schematic perspective view which shows the other embodiment example of the static elimination brush of this invention. It is a schematic perspective view which shows another example of embodiment of the static elimination brush of this invention. It is a schematic perspective view which shows another example of embodiment of the static elimination brush of this invention. It is a schematic perspective view which shows another example of embodiment of the static elimination brush of this invention.

Explanation of symbols

1, 11, 21 Static elimination brush 2, 12, 22 Fibrous electrodes 3, 13, 23 Conductive fibers 4, 14, 24 Tape-shaped surface members 5, 15, 25 Tape-shaped back members 6, 16, 26, 7, 17 , Non-conductive adhesive layer 18 Depressed portion 28 Conductive adhesive layer B Conductive fiber exposed portion

Claims (5)

In the static elimination brush formed by sandwiching and fixing each one end portion of a large number of fibrous electrodes arranged in a plane and substantially in parallel by a tape-like surface member and a tape-like back surface member,
Conductive fibers intersecting in a direction substantially perpendicular to the fibrous electrodes and electrically connected to the fibrous electrodes so as to be energized are disposed over substantially the entire length in the longitudinal direction of the tape-like surface member, and the conductive fibers Forming a partially exposed conductive fiber exposed portion,
A non-conductive adhesive layer for fixing the fibrous electrode and the conductive fiber to the tape-shaped surface member and the tape-shaped back member is formed on the surfaces of the tape-shaped surface member and the tape-shaped back member facing each other. A non-conductive adhesive layer is formed on the surface of the tape-shaped back member that is not opposed to the tape-shaped surface member;
A neutralizing brush characterized in that the charge taken into the fibrous electrode is neutralized through the exposed conductive fiber. The length of the tape-like back member in the longitudinal direction is shorter than the length of the tape-like surface member in the longitudinal direction, and the conductive fiber protrudes from the end of the tape-like back member, thereby the tape-like back member. The neutralizing brush according to claim 1, wherein the conductive fiber exposed portion is formed at an end of the brush. The neutralizing brush according to claim 1, wherein the conductive fiber exposed portion is formed by partially missing the tape-like back surface member. The recessed portion which is plastically deformed into a recessed state from the surface on the front side of the tape-shaped surface member in the conductive fiber exposed portion toward the surface on the back side is formed. The static elimination brush of any one of Claims. In the static elimination brush formed by sandwiching and fixing each one end portion of a large number of fibrous electrodes arranged in a plane and substantially in parallel by a tape-like surface member and a tape-like back surface member,
Conductive fibers crossed in a direction substantially orthogonal to the fibrous electrode and electrically connected to the fibrous electrode so as to be energized are disposed over substantially the entire length in the longitudinal direction of the tape-shaped surface member,
A part of the tape-like back member is a conductive tape-like back member made of a conductive member having a conductive adhesive layer formed on the surface that does not face the tape-like surface member,
A non-conductive adhesive layer for fixing the fibrous electrode and the conductive fiber to the tape-shaped surface member and the tape-shaped back member is formed on the surface of the tape-shaped surface member and the tape-shaped back member facing each other. And
A static elimination brush characterized in that the charge taken into the fibrous electrode is eliminated via a portion of the tape-like back member where the conductive adhesive layer is formed.

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