JP2012026933A - Fiber sheet body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber sheet body which is much more suitable as a lead wire to be used for a fiber sheet, and which is more excellent in the contact property of a lead wire.SOLUTION: A fiber sheet body 1 is provided with: a fiber sheet 10 having two conductive fibers 11 and two lead wires 20 configured of highly intense fiber worked by plating. Also, two lead wires 20 are respectively sewed in the fiber sheet 10 so as to be brought into contact with the two conductive fibers 11. Also, the fiber sheet 10 is configured of warp and weft such as polyester, and two of the warp and weft are configured as the conductive fibers 11. Also, aramid fiber, polyarylate fiber and PBO fiber or the like are used as highly intense fiber.

Description

  The present invention relates to a fiber sheet body.

  2. Description of the Related Art Conventionally, a seating sensor has been proposed in which two conductive fibers, which are provided in a seat cushion portion of a driver's seat of a vehicle and whose metal is plated on a fiber, are arranged in parallel on a non-conductive fiber sheet. . When the occupant sits on the driver's seat or the like in this seating sensor, the fiber sheet is bent, and the distance between the conductive fibers changes to change the capacitance. Thereby, seating is detected (refer to patent documents 1).

JP 2010-101836 A

  Here, in the conventional seating sensor, in order to catch the capacitance change, it is necessary to connect the conductive fiber and the calculation unit for detecting the seating from the capacitance change with a lead wire to form a fiber sheet body. There is. However, when a metal conductor is used as a lead wire, there are the following problems. That is, a metal conductor is weak against bending and low in strength. For this reason, it cannot be said that it is suitable as a lead wire for a fiber sheet sensor. Furthermore, the flexibility of the fiber sheet is easily lost with the metal conductor, and the metal conductor itself is easily plastically deformed, which is not suitable as the lead wire of the fiber sheet-shaped sensor.

  Therefore, even if the conductive fiber is used as the lead wire, there are the following problems. That is, when using a conductive fiber with a lead wire, it is necessary to make the conductive fiber as a lead wire contact the conductive fiber on a fiber sheet. For this reason, crimping or soldering using a terminal is conceivable. However, when crimping, the adhesive strength between the conductive fibers cannot be obtained, and when soldering, the conductive fibers cannot withstand the heat of the solder. . Therefore, there is a problem in contact with conductive fibers.

  The above-mentioned problem is not limited to the lead wire of the fiber sheet sensor, but is common to leads used for other fiber sheets.

  The present invention has been made to solve such a conventional problem, and the object of the invention is more suitable as a lead wire used for a fiber sheet and more in the contact property of the lead wire. The object is to provide an excellent fiber sheet body.

  The fiber sheet body of the present invention includes a fiber sheet having at least one conductive fiber and a lead wire made of plated high-strength fibers, and the lead wire is sewn into the fiber sheet. , In contact with at least one conductive fiber.

  According to this fiber sheet body, since the lead wire is a plated high-strength fiber, it is strong against bending and high in strength. In addition, since the lead wire is a high-strength fiber plated, it is difficult for the flexibility of the fiber sheet to be impaired and plastic deformation is difficult. For this reason, it can be said that it is more suitable as a lead wire used for a fiber sheet. Furthermore, since the lead wire is in contact with the conductive fiber by being sewn into the fiber sheet, it can be said that there is no need for crimping or soldering and the contact property is excellent. Therefore, it is possible to provide a fiber sheet body that is more suitable as a lead wire used for the fiber sheet and that is superior in the contact property of the lead wire.

  In the fiber sheet body of the present invention, the lead wire is preferably sewn into the fiber sheet as a conductive fiber.

  According to this fiber sheet body, since the lead wire is sewn into the fiber sheet as conductive fiber, for example, the fiber sewn into the fiber sheet as the warp or weft of the fiber sheet is used as the lead wire. One fiber can be used as the lead wire and the conductive fiber of the fiber sheet. Accordingly, it is possible to provide a fiber sheet body with even better lead wire contact.

  Moreover, in the fiber sheet body of the present invention, it is preferable that the lead wire has a fixing portion that restricts movement in the direction of coming out of the fiber sheet.

  According to this fiber sheet body, the lead wire has a fixing portion that restricts movement in the direction of coming out of the fiber sheet. Can be prevented from bending. Furthermore, it is possible to prevent a situation in which the lead wire is completely disconnected and does not function as the lead wire.

  ADVANTAGE OF THE INVENTION According to this invention, it is more suitable as a lead wire used for a fiber sheet, and can provide the fiber sheet body which was more excellent in the contact property of a lead wire.

It is a schematic block diagram of the fiber sheet body which concerns on this embodiment. It is a schematic block diagram of the fiber sheet body which concerns on 2nd Embodiment. It is a schematic block diagram of the fiber sheet body which concerns on 3rd Embodiment. It is a schematic block diagram of the fiber sheet body which concerns on 4th Embodiment.

  Hereinafter, the embodiment of the fiber sheet object concerning the present invention is described. FIG. 1 is a schematic configuration diagram of a fiber sheet body according to the present embodiment.

  As shown in FIG. 1, the fiber sheet body 1 includes a fiber sheet 10 and two lead wires 20. The fiber sheet 10 is composed of, for example, warps and wefts such as polyester, and at least one of the warps and wefts is a conductive fiber 11. The conductive fiber 11 has conductivity while being a fiber, and includes carbon fiber, resin fiber having a metal filler, and polyester or nylon (registered trademark) plated. Furthermore, the conductive fiber 11 includes an aramid fiber, a polyarylate fiber, a PBO fiber, and the like.

  More specifically, in the fiber sheet 10 according to the present embodiment, two fibers of the warp or weft constituting the fiber sheet 10 are conductive fibers 11. For this reason, the two conductive fibers 11 are arranged in parallel and can be used as a capacitance sensor in which the capacitance changes as the distance between the two changes.

  The two lead wires 20 are plated high-strength fibers. The plating to be processed corresponds to, for example, copper and tin. The high-strength fibers include aramid fibers, polyarylate fibers, and PBO fibers. Such two lead wires 20 are connected to a calculation unit (not shown) whose one end is in contact with the two conductive fibers 11 and whose other end is detecting a change in capacitance.

  Furthermore, in this embodiment, the lead wire 20 is in contact with each of the two conductive fibers 11 by having one end side sewn into each of the two conductive fibers 11. In the present embodiment, the lead wire 20 is reciprocated multiple times from one surface to the other surface and from the other surface to the one surface so that the lead wire 20 can easily come into contact with the two conductive fibers 11. Although it is sewed, the way of sewing is not particularly limited.

  Since the lead wire 20 is a plated high-strength fiber, the other end of the lead wire 20 is connected to a calculation unit that detects a change in capacitance by crimping or soldering by terminal crimping. .

  Such a fiber sheet body 1 is provided in a seat cushion portion of a vehicle, for example, and functions as a sensor that detects seating. That is, when the occupant is seated on the seat, the fiber sheet 10 is bent by the load.

  Thereby, the distance between the conductive fibers 11 of the fiber sheet 10 changes. Thereby, the electrostatic capacitance of the conductive fiber 11, that is, the amount of charge changes. The calculation unit detects the change via the lead wire 20 and detects the seating.

  Moreover, when manufacturing such a fiber sheet body 1, first, fibers, such as polyester, are used as warp and weft, and two of the warp or weft are used as conductive fibers, and the fiber sheet 10 is knitted.

  After that, two lead wires 20 made of plated high-strength fibers are prepared, and each lead wire 20 is sewn into each conductive fiber. Thereby, the fiber sheet body 1 is manufactured.

  Thus, according to the fiber sheet body 1 according to the present embodiment, the lead wire 20 is a high-strength fiber that has been plated, and thus is strong against bending and high in strength. Moreover, since the lead wire 20 is a high-strength fiber plated, the flexibility of the fiber sheet 10 is not easily lost and plastic deformation is difficult. For this reason, it can be said that it is more suitable as the lead wire 20 used for the fiber sheet 10. Furthermore, since the lead wire 20 is in contact with the conductive fiber 11 by being sewn into the fiber sheet 10, it can be said that there is no need for crimping or soldering and the contact property is excellent. Therefore, it is possible to provide the fiber sheet body 1 that is more suitable as the lead wire 20 used for the fiber sheet 10 and that is more excellent in the contact property of the lead wire 20.

  Next, a second embodiment of the present invention will be described. The fiber sheet body according to the second embodiment is the same as that of the first embodiment, but the configuration is partially different. Hereinafter, differences from the first embodiment will be described.

  FIG. 2 is a schematic configuration diagram of the fiber sheet body 2 according to the second embodiment. As shown in FIG. 2, the conductive fiber 11 of the fiber sheet 10 is a high-strength fiber that has been plated, and an aramid fiber, a polyarylate fiber, a PBO fiber, or the like is used.

  Furthermore, in the second embodiment, the conductive fiber 11 is stretched to form the lead wire 20. That is, in this embodiment, the conductive fiber 11 and the lead wire 20 are configured by a single fiber. For this reason, the lead wire 20 is in a state of being sewn into the fiber sheet 10 as the conductive fiber 11.

  In addition, the lead wire 20 has a fixing portion 21 that restricts movement in the direction of coming out of the fiber sheet 10. Here, in this embodiment, since the conductive fiber 11 and the lead wire 20 are configured by a single fiber, if a force in the direction of pulling out from the fiber sheet 10 is applied to the lead wire 20, the friction force at the time of pulling out There is a possibility that the fiber sheet is bent. Further, if the lead wire 20 is completely removed, it will not function as the lead wire 20 in the first place.

  Therefore, in the present embodiment, the lead wire 20 has a fixing portion 21. In addition, the fixing | fixed part 21 may connect the lead wire 20 and may be used as a ball stop, and may be used as an adhesive agent. Moreover, it is not limited to the ball stopper, but may be other tying methods such as a bow and a solid knot.

  Moreover, when manufacturing such a fiber sheet body 2, while preparing the fiber of polyester etc. used as a warp and a weft, the slightly long plated high strength fiber used as a warp or a weft is prepared. And we knit these. At this time, the plated high-strength fiber is knitted so as to be drawn out for use as the lead wire 20.

  Then, the fixing | fixed part 21 is created in the site | part by the side of the fiber sheet 10 among the lead wires 20 withdraw | derived. The fixing portion 21 is created by, for example, fixing the lead wire 20 with a ball.

  As described above, the fiber sheet body 2 according to the second embodiment is manufactured. The fiber sheet 10 may be knitted so that the lead wire 20 is stretched. However, the lead wire 20 may be pulled out after first being knitted as usual.

  Thus, according to the fiber sheet body 2 according to the second embodiment, the lead wire 20 used in the fiber sheet 10 is more suitable and the contact property of the lead wire 20 is the same as in the first embodiment. A more excellent fiber sheet body 2 can be provided.

  Furthermore, according to 2nd Embodiment, since the lead wire 20 is sewn into the fiber sheet 10 as the conductive fiber 11, the fiber sewn into the fiber sheet 10 as the warp or the weft of the fiber sheet 10, for example Is used as the lead wire 20, and one fiber can be used as the lead wire 20 and the conductive fiber 11 of the fiber sheet 10. Accordingly, it is possible to provide the fiber sheet body 2 having a further excellent contact property of the lead wire 20.

  Moreover, since the lead wire 20 has the fixing | fixed part 21 which controls the movement to the direction which pulls out from the fiber sheet 10, for example, force is applied to the lead wire 20 in the direction pulling out from the fiber sheet 10, and the fiber sheet 10 is generated by the frictional force at the time of pulling out. Can be prevented from bending. Further, it is possible to prevent a situation in which the lead wire 20 is completely removed and the lead wire 20 does not function.

  Next, a third embodiment of the present invention will be described. The fiber sheet according to the third embodiment is the same as that of the first embodiment, but the configuration is partially different. Hereinafter, differences from the first embodiment will be described.

  FIG. 3 is a schematic configuration diagram of the fiber sheet body 3 according to the third embodiment. As shown in FIG. 3, the fiber sheet 10 according to the third embodiment is entirely composed of warp yarns and weft yarns of conductive fibers 11. For this reason, the fiber sheet 10 according to the third embodiment functions as an electromagnetic wave prevention sheet.

  In the third embodiment, one end side of the lead wire 20 is sewn in any part of the fiber sheet 10 and is in contact with the conductive fiber 11. Note that the sewing method is not particularly limited as in the first embodiment. Further, since the fiber sheet 10 according to the present embodiment functions as an electromagnetic wave prevention sheet, the other end of the lead wire 20 is grounded by bolting or the like.

  In such a fiber sheet body 3, it is wound around an electric wire, for example, and functions as a shield layer. That is, when electromagnetic waves reach from the outside, they are shielded by the fiber sheet 10 functioning as a shield layer, and the electric charge accumulated in the fiber sheet 10 is grounded via the lead wire 20.

  When manufacturing such a fiber sheet body 3, first, the conductive fibers are knitted as warps and wefts. Thereafter, a lead wire 20 made of plated high-strength fiber is prepared, and the lead wire 20 is sewn into any part of the fiber sheet 10. Thereby, the fiber sheet body 3 is manufactured.

  Thus, according to the fiber sheet body 3 according to the third embodiment, the lead wire 20 used in the fiber sheet 10 is more suitable and the contact property of the lead wire 20 is the same as in the first embodiment. A more excellent fiber sheet body 3 can be provided.

  Next, a fourth embodiment of the present invention will be described. The fiber sheet body according to the fourth embodiment is the same as that of the second embodiment, but the configuration is partially different. Hereinafter, differences from the second embodiment will be described.

  FIG. 4 is a schematic configuration diagram of the fiber sheet body 4 according to the fourth embodiment. As shown in FIG. 4, the fiber sheet 10 according to the fourth embodiment is the same as that of the third embodiment, and is composed entirely of warp and weft of conductive fibers 11 and functions as an electromagnetic wave prevention sheet. .

  Furthermore, in 4th Embodiment, the conductive fiber 11 of the fiber sheet 10 is extended, and the lead wire 20 is comprised similarly to 2nd Embodiment, and the lead wire 20 is made into the fiber sheet 10 as the conductive fiber 11. FIG. It is in the state sewn into. Furthermore, the lead wire 20 according to the fourth embodiment has a fixing portion 21 as in the second embodiment, and restricts the movement of the lead wire 20 in the removal direction.

  When manufacturing such a fiber sheet body 4, conductive fibers used as warp and weft are prepared, and slightly longer plated high-strength fibers used as warp or weft are prepared. And we knit these. At this time, the plated high-strength fiber is knitted so as to be drawn out for use as the lead wire 20.

  Then, the fixing | fixed part 21 is created in the site | part by the side of the fiber sheet 10 among the lead wires 20 withdraw | derived. The fixing portion 21 is created by, for example, fixing the lead wire 20 with a ball.

  The fiber sheet 4 is not limited to the above method, and high-strength fibers plated as warps and wefts are prepared, and slightly high-strength high-strength fibers used as warps or wefts are prepared and knitted. May be.

  Thus, according to the fiber sheet body 4 according to the fourth embodiment, as in the first embodiment, it is more suitable as the lead wire 20 used for the fiber sheet 10 and in the contact property of the lead wire 20. A more excellent fiber sheet body 4 can be provided.

  Furthermore, according to the fourth embodiment, similar to the second embodiment, it is possible to provide the fiber sheet body 4 with further excellent contactability of the lead wire 20, and the fiber sheet 10 by the frictional force at the time of pulling out. Can be prevented from being bent and a situation where the lead wire 20 does not function.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment, You may add a change in the range which does not deviate from the meaning of this invention, and combines each embodiment. Also good.

  For example, in the above embodiment, the fiber sheet 10 has a function as a fiber sheet sensor and an electromagnetic wave prevention sheet, but may be applied to a fiber sheet having other functions.

  Further, in the first and second embodiments, two conductive fibers 11 are incorporated in the fiber sheet 10, and in the third and fourth embodiments, the fiber sheet 10 is entirely defined as the conductive fibers 11. Yes. However, the number of the conductive fibers 11 in the fiber sheet 10 is not limited to two or almost all as described above. For example, one conductive fiber 11 may be incorporated in the fiber sheet 10 and used as an antenna. Further, one conductive fiber 11 may be incorporated in the fiber sheet 10 and two of them may be arranged to face each other and used as a capacitive sensor.

  In addition, since it is not necessary to perform crimping | compression-bonding and soldering about the fiber sheet bodies 1-4 which concern on the said embodiment, the terminal space by crimping and the solder space by soldering become unnecessary, and space saving is achieved. You can also. Furthermore, the connection of the lead wire to the radio wave prevention sheet is performed by ultrasonic welding or by bolting, but for the fiber sheet bodies 3 and 4 according to the third and fourth embodiments, welding and Bolt tightening is also unnecessary, and space can be saved.

1-4 Fiber sheet body 10 Fiber sheet 11 Conductive fiber 20 Lead wire 21 Fixing part

Claims (3)

A fiber sheet having at least one conductive fiber;
A lead wire made of plated high-strength fiber,
The lead sheet is in contact with the at least one conductive fiber by being sewn into the fiber sheet. The fiber sheet body according to claim 1, wherein the lead wire is sewn into the fiber sheet as the conductive fiber. The fiber sheet body according to claim 2, wherein the lead wire has a fixing portion that restricts movement in a direction of coming out of the fiber sheet.

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