WO2017006752A1

WO2017006752A1 - Clamp and electrical wire with clamp

Info

Publication number: WO2017006752A1
Application number: PCT/JP2016/068196
Authority: WO
Inventors: 大江　聡
Original assignee: 株式会社オートネットワーク技術研究所; 住友電装株式会社; 住友電気工業株式会社
Priority date: 2015-07-09
Filing date: 2016-06-20
Publication date: 2017-01-12
Also published as: JP6477310B2; JP2017022840A

Abstract

The objective of the present invention is to provide a technology with which identification information for an electrical wire or for an exterior component attached to an electrical wire can be recognized from as many directions as possible while having as simple a configuration as possible. This clamp is equipped with a clip portion and an IC tag. The clip portion includes a latching part formed so as to be capable of latching onto an attachment subject, and a harness attachment part that is continuous with the latching part and is attached to an electrical wire. The IC tag includes an IC chip and an antenna connected to the IC chip. A plurality of the IC tags are provided on the clip part in a manner such that the respective maximum emission directions of the antennas intersect each other, the maximum emission direction being the direction in which the emission strength from the antenna is the maximum.

Description

Clamp and electric wire with clamp

The present invention relates to a technique that makes it possible to identify an electric wire or an exterior part attached to the electric wire.

For example, Patent Literature 1 and Patent Literature 2 disclose a technique that makes it possible to identify an electric wire or an exterior part attached to the electric wire.

In the bundled wire fitting with a tag described in Patent Literature 1, identification information is given to the electric wire bundled in the bundled wire bundle with the tag by attaching the IC tag to the bundled wire bundle that bundles the electric wires.

Further, the cable with identification information described in Patent Document 2 is given identification information to the cable by winding a tape-shaped carrier with an IC tag around the cable.

JP 2006-103724 A JP 2005-347137 A

Here, the antenna included in the IC tag usually has directivity, so that there are cases where the IC tag has a direction that is difficult to detect.

For example, in the bundled wire fitting with a tag described in Patent Document 1, since only one IC tag is provided, it may not be detected for detection from a specific direction depending on the direction of the bundled wire fitting. .

Further, in the carrier with an IC tag described in Patent Document 2, even when wound around the cable, depending on the relationship between the thickness of the cable and the interval of the IC tag with respect to the extending direction of the tape, the same in the circumferential direction of the cable If the IC tag is located at a position, a plurality of IC tags may exhibit the same directivity and may not be detected with respect to detection from a specific direction. In order to avoid this, it is necessary to use different types of carriers with IC tags depending on the thickness of the cable.

Therefore, an object of the present invention is to provide a technique capable of identifying identification information of an electric wire or an exterior part attached to the electric wire from as many directions as possible with as simple a configuration as possible.

In order to solve the above-described problem, a clamp according to a first aspect includes a locking portion formed to be able to be locked to an attachment object, and a harness mounting portion that is connected to the locking portion and is attached to an electric wire. And a plurality of IC tags provided in the clip portion in a manner in which the maximum radiation direction in which the radiation intensity from the antenna is maximized intersects, including an IC chip and an antenna connected to the IC chip. .

The clamp according to the second aspect is the clamp according to the first aspect, and two IC tags are provided so that the maximum radiation directions of the antennas are orthogonal to each other.

The clamp which concerns on a 3rd aspect is a clamp which concerns on a 2nd aspect, Comprising: The said latching | locking part is formed so that it can be inserted in the attachment hole formed in the said attachment target object, and can be latched after insertion. One of the two IC tags is provided in the clip portion so that the maximum radiation direction of the antenna coincides with the insertion direction of the locking portion.

The clamp according to the fourth aspect is a clamp according to any one of the first to third aspects, and the IC tag is provided so as to be embedded in the clip portion.

The clamp according to the fifth aspect is the clamp according to any one of the first to fourth aspects, and the IC tag is attached to the clip portion.

The electric wire with a clamp according to the sixth aspect includes the clamp according to any one of the first to fifth aspects and the electric wire to which the clamp is attached.

According to the first to fifth aspects, the clip part including the latch part formed to be latchable to the attachment object, the harness attaching part connected to the latch part and attached to the electric wire, the IC chip and the IC An IC connected to the chip, and a plurality of IC tags provided in the clip portion in such a manner that the maximum radiation direction from which the radiation intensity from the antenna is maximized intersects. When reading from the direction, at least one of the plurality of IC tags can be easily read. At this time, if the same identification information of the electric wire or the exterior part attached to the electric wire is stored in a plurality of IC tags provided in one clip portion, the identification information can be identified. Thereby, the identification information of the electric wire or the exterior part attached to the electric wire can be identified from as many directions as possible with a simple configuration.

In particular, according to the second aspect, since two IC tags are provided so that the maximum radiation directions of the respective antennas are orthogonal to each other, identification information is identified from as many directions as possible while suppressing an increase in the number of IC tags. It becomes possible.

In particular, according to the third aspect, one of the two IC tags is provided in the clip portion so that the maximum radiation direction of the antenna matches the insertion direction of the locking portion. Even when the detector is held from a specific direction, one of the two IC tags provided on the clamp can be detected more reliably.

Particularly, according to the fourth aspect, since the IC tag is provided so as to be embedded in the clip portion, the IC tag is unlikely to come off from the clip portion.

Particularly, according to the fifth aspect, since the IC tag is attached to the clip portion, the IC tag can be easily provided on the clip portion.

According to the sixth aspect, since the clamp according to any one of the first to fifth aspects and the electric wire to which the clamp is attached are provided, the IC tag of the clamp is to be read from a specific direction. At least one of the plurality of IC tags can be easily read. At this time, if the same identification information of the electric wire or the exterior part attached to the electric wire is stored in a plurality of IC tags provided in one clip portion, the identification information can be identified. Thereby, the identification information of the electric wire or the exterior part attached to the electric wire can be identified from as many directions as possible with a simple configuration.

It is a perspective view which shows the clamp which concerns on 1st Embodiment. It is a front view showing an electric wire with a clamp concerning a 1st embodiment. It is explanatory drawing explaining a mode that an IC tag is detected with a detector. It is explanatory drawing explaining a mode that a wire harness is test | inspected. It is explanatory drawing which shows the modification of how to attach an IC tag. It is a perspective view which shows the clamp which concerns on 2nd Embodiment.

{First embodiment}
Hereinafter, the clamp and electric wire with a clamp concerning a 1st embodiment are explained. FIG. 1 is a perspective view showing a clamp 20 according to the first embodiment. FIG. 2 is a front view showing the clamped electric wire 10 according to the first embodiment.

The clamp 20 according to the first embodiment is a member that is attached to the electric wire 12 and that fixes the electric wire 12 to an attachment object such as a vehicle panel 90. Since many clamps 20 are similar in shape, there are many problems such as mounting mistakes. For this reason, it is useful to improve the manufacturing efficiency to perform the identification easily. Here, the clamp 20 is provided with an IC tag so that it can be easily identified. Specifically, the clamp 20 includes a clip portion 22 and an IC tag 60.

<Clip part>
The clip part 22 is provided so that it can be attached to the electric wire 12 and can be locked to an attachment object such as a panel 90 of the vehicle while being attached to the electric wire 12. Specifically, the clip portion 22 includes a locking portion 30 and a harness attachment portion 40.

The latching part 30 is formed so as to be latched to the attachment object. Specifically, here, the locking portion 30 is formed so that it can be inserted into an attachment hole formed in an attachment object such as the panel 90 and can be locked after insertion. More specifically, the locking part 30 includes a dish part 32 and a locking piece 36.

The dish part 32 is formed in a disk spring shape. More specifically, the dish part 32 includes a bottom part 33 and a body part 34. The bottom portion 33 is formed in an oval flat plate shape, and is provided so that its main surface is in contact with one main surface of a substrate portion 42 described later of the harness mounting portion 40. The trunk portion 34 protrudes while inclining so as to spread outward from the outer edge of the bottom portion 33. The outer edge of the trunk | drum 34 is set larger than the attachment hole formed in the attachment target object. In a state where the locking portion 30 is locked to the mounting hole, the outer edge of the body portion 34 is formed so as to be able to contact the peripheral edge of the mounting hole.

The locking piece 36 can be inserted into the mounting hole and is formed in a shape that can be removed after insertion. More specifically, the locking piece 36 includes a rod-shaped portion 37 and a wing portion 38.

The rod-shaped portion 37 is formed so as to extend from the bottom portion 33 (here, the center of the bottom portion 33) in a manner orthogonal to the main surface of the bottom portion 33. The rod-shaped portion 37 includes a portion located inside the mounting hole in a state where the locking portion 30 is locked to the mounting hole. A pair of wing portions 38 are formed so as to extend in a manner inclined from the tip of the rod-shaped portion 37 toward the bottom 33 side.

A stepped portion is provided on the tip side of the pair of wing portions 38. The base end side portion of the stepped portion is provided with a portion (outermost dimension portion) in which the distance between the outward faces of the pair of wing portions 38 is maximized. The distance between the outermost dimension portions is greater than the mounting hole. Is also set larger. Further, the pair of wing portions 38 are formed to be elastically deformable so that the distance between the outermost dimension portions is equal to or less than the attachment hole.

When the locking portion 30 is inserted into the mounting hole, the wing portion 38 is elastically deformed so that the interval between the outermost dimension portions is reduced, and proceeds in the mounting hole. Then, when the outermost dimension part passes through the attachment hole, the wing part 38 begins to return elastically, and the step part is caught on the periphery of the attachment hole by passing through the attachment hole. Thereby, even if it is going to extract the latching | locking part 30 from an attachment hole, a level | step-difference part will be hooked on the periphery of an attachment hole, and it will become immovable. In this state, if the locking portion 30 is further inserted into the mounting hole, the body portion 34 is caught on the periphery of the mounting hole and cannot be moved. Thus, the locking portion 30 is locked in the mounting hole, and the clip portion 22 is mounted on the panel 90.

The harness mounting portion 40 is continuous with the locking portion 30. The harness attachment part 40 is formed so that attachment to the electric wire 12 is possible. Specifically, here, the harness attachment portion 40 is formed in a plate shape, and is fixed to the electric wire 12 by being bound together with the electric wire 12 by a binding member such as a tape 72. More specifically, the harness attachment part 40 includes a substrate part 42 and a protruding part 44.

The substrate part 42 is formed in a substantially rectangular plate shape. A locking portion 30 is provided on one main surface of the substrate portion 42.

The protruding portion 44 of the harness mounting portion 40 is formed so as to protrude sideways from the substrate portion 42. The protruding portion 44 is a portion that is bound together with the electric wire 12 by a binding member such as the tape 72. Here, the protruding portion 44 is provided so as to protrude from the substrate portion 42 to both sides, but this is not essential. The protruding portion 44 may be formed to protrude from the substrate portion 42 to one side.

<IC tag 60>
Next, the IC tag 60 will be described. Identification information is stored in the IC tag 60. The identification information stored in the IC tag 60 can be taken out by a detector 80 (reader or reader / writer).

Here, how the IC tag 60 is detected by the detector 80 will be described with reference to FIG. FIG. 3 is an explanatory diagram for explaining how the IC tag 60 is detected by the detector 80.

The IC tag 60 includes an IC chip 62 and an antenna 64. Detector 80 includes a control unit 82 and an antenna 84.

In taking out the information stored in the IC tag 60 by the detector 80, first, the information is transmitted from the antenna 84 of the detector 80 on a radio wave or a magnetic field. When the antenna 64 of the IC tag 60 receives this radio wave or magnetic field from the detector 80, an induced electromotive force is generated or resonates to generate electric power in the IC tag 60. After the necessary processing is performed in the IC chip 62 by this electric power, information stored in the IC chip 62 is transmitted from the antenna 64 on a radio wave or a magnetic field. Then, the antenna 84 of the detector 80 receives this radio wave or magnetic field, and the control unit 82 performs necessary processing, whereby information stored in the IC chip 62 can be extracted.

The frequency used between the IC tag 60 and the detector 80 may be a 135 kHz band, a 13.56 MHz band, or a 2.45 GHz band. Further, the UHF band (860 to 960 MHz) may be used. For example, it may be set according to the distance between the IC tag 60 and the detector 80 assumed when the wire harness is inspected from one direction. At this time, the radio wave transmission method usually varies depending on the frequency. As an example, the electromagnetic induction method is adopted for the 135 kHz band or 13.56 MHz band, and the radio wave method is adopted for the UHF band or 2.45 GHz band.

Hereinafter, the IC tag 60 will be described in detail.

The IC chip 62 is a part that stores the identification information and processes the information. The IC chip 62 includes, for example, a memory for storing information and a control circuit for controlling communication with the detector 80. The identification information stored in the IC chip 62 may be, for example, the identification information of the clamp 20 to which the IC tag 60 including the IC chip 62 is attached. More specifically, in the wire harness including the clamp 20, the identification of the type of the clamp 20 (for example, the product number and the manufacturing history) and the mounting position of the clamp 20 in the vehicle (that is, the mounting position in the wire harness). It may be information, and further, identification information and manufacturing history of the wire harness body.

The antenna 64 is connected to the IC chip 62. The antenna 64 is a part that transmits and receives the radio wave or magnetic field. The antenna 64 may be formed by a known means such as an etching method or a printing method.

Here, the antenna 64 usually has directivity. The directivity represents the relationship between the radiation direction of radio waves or magnetic fields and the radiation intensity. Regarding the directivity of the antenna 64, the direction in which the radiation intensity from the antenna 64 is maximum is referred to as the maximum radiation direction in this specification. Note that the maximum radiation direction of one antenna 64 may extend in multiple directions depending on the shape of the antenna 64.

The directivity of the antenna 64 varies depending on the shape of the antenna 64. As the shape of the antenna 64, for example, a shape in which a conductor wire is wound in an annular coil shape, a so-called loop antenna, or a dipole antenna can be considered. The shape of the antenna 64 may be set as appropriate according to the frequency and the like.

Here, the IC tag 60 is formed in a disc shape, but this is not essential. The IC tag should just be formed in the shape according to the part attached among the clip parts 22, such as square plate shape.

A plurality of IC tags 60 are provided in the clip portion 22. The plurality of IC tags 60 are provided in the clip portion 22 in such a manner that the maximum radiation directions of the respective antennas 64 intersect (here, orthogonal). Here, two IC tags 60 are provided in the clip portion 22. The two IC tags 60 are preferably set to be detectable by the same detector 80. This eliminates the need to change the detector 80 for inspection. The antennas 64 of the two IC tags 60 are preferably set to the same shape. This facilitates setting of the maximum radiation direction when the IC tag 60 is attached to the clip portion 22. Further, the two IC tags 60 may have the same identification information regarding the clamp 20.

Here, in order to fix the IC tag 60 to the clip part 22, for example, pasting is conceivable. That is, a surface of the IC tag 60 to which the double-sided tape is applied or a surface to which the adhesive is applied is attached to the clip portion 22 by applying a double-sided tape on one surface of the IC tag 60 or applying an adhesive or the like. It is possible. Alternatively, it is conceivable that the IC tag 60 is attached to a single-sided tape larger than the IC tag 60 and then the single-sided tape with the IC tag 60 is attached to the clip portion 22. When the IC tag 60 is attached to the clip part 22, the IC tag 60 can be easily provided on the clip part 22.

Further, when the IC tag 60 is fixed to the clip part 22, for example, the IC tag 60 can be embedded in the clip part 22. In order to embed the IC tag 60 in the clip portion 22, for example, as shown in FIG. 5, the IC tag 60 is molded in a recess 22 h provided in the clip portion 22 with a resin 70 or an adhesive. Conceivable. If the IC tag 60 is provided so as to be embedded in the clip portion 22, the IC tag 60 is unlikely to be detached from the clip portion 22.

Here, the two IC tags 60 are provided so that the maximum radiation directions of the respective antennas 64 are orthogonal to each other. Further, here, the clip portion 22 is provided so that the maximum radiation direction of the antenna 64 coincides with the insertion direction of the locking portion 30.

Specifically, one of the two IC tags 60 is attached to a recess 37 h provided on the tip surface of the rod-shaped portion 37, and the other is attached to the bottom surface (surface facing the electric wire side) of the substrate portion 42. At this time, the maximum radiation direction of one of the two IC tags 60 coincides with the insertion direction of the locking portion 30 with respect to the mounting hole (that is, the extending direction from the bottom portion 33 of the rod-shaped portion 37 here). Provided. The remaining maximum radial direction of the two IC tags 60 is provided so as to be orthogonal to the insertion direction of the locking portion 30.

Note that the maximum radiation direction of the antenna 64 may coincide with the insertion direction of the locking portion 30 may be the IC tag 60 attached to the recess 37h provided on the tip surface of the rod-shaped portion 37, or the substrate portion. The IC tag 60 attached to the bottom surface of 42 may be used. It is set as appropriate depending on the shape of the antenna 64 and the direction in which the IC tag 60 is attached. For example, in the example shown in FIG. 1, the maximum radiation direction of the antenna 64 of the IC tag 60 attached to the inner peripheral surface of the recess 37 h matches the insertion direction of the locking portion 30, and is attached to the bottom surface of the substrate portion 42. The maximum radiation direction of the antenna 64 of the IC tag 60 is set in a direction orthogonal to the insertion direction of the locking portion 30 and the extending direction of the electric wires 12.

Furthermore, here, the maximum radiation direction of the antenna 64 of the two IC tags 60 in one clamp 20 intersects (here, orthogonal) the extending direction of the electric wire 12 when the clamp 20 is attached to the electric wire 12. Set to direction.

When attaching the two IC tags 60 to one clip portion 22, the fixing method may be the same or different. For example, the IC tag 60 attached to the recess 37h provided on the tip surface of the rod-like part 37 may be attached in an embedded manner, and the IC tag 60 attached to the bottom surface of the substrate part 42 may be attached in an adhesive manner.

The electric wire 10 with a clamp includes the clamp 20 and the electric wire 12. As described above, the clamp 20 is fixed to the electric wire 12 by winding a binding member such as the tape 72 around the protruding portion 44 of the harness attachment portion 40 and the electric wire 12.

Next, the inspection for the wire harness 100 including the clamped electric wire 10 will be described with reference to FIG. FIG. 4 is an explanatory diagram for explaining a state in which the wire harness 100 is inspected.

In manufacturing the wire harness 100, it is usually inspected whether the position of the clamp 20 in the completed wire harness 100 is correct. Here, the IC tag 60 is used for the inspection.

More specifically, when inspecting the completed wire harness 100, a method of inspecting the wire harness 100 in a state of being flatly developed may be used. Hereinafter, it will be described that this method is adopted even when the IC tag 60 is detected. In this case, as shown in FIG. 4, a method may be used in which the IC tag 60 is detected by holding the detector 80 from a direction intersecting (here, orthogonal) with respect to the plane on which the wire harness 100 is developed. Conceivable.

In the example illustrated in FIG. 4, an example in which three clamps 20 are provided in the wire harness 100 will be described. The three clamps 20 are provided at intervals along the extending direction of the wire harness 100. The IC chips 62 of the three clamps 20 store different identification information, more specifically, identification information corresponding to the attachment positions of the three clamps 20 and the like. Here, the three clamps 20 are attached to the electric wire 12 so that the directions of the engaging portions 30 in the insertion direction are different. In addition, the shape of the clip part 22 of the three clamps 20 may be the same, and may differ.

As in the example shown in FIG. 4, the orientation of the clamp 20 in the completed wire harness 100 is not always constant. For this reason, it is difficult to align all the clamps 20 when the wire harness 100 is deployed in a planar shape. Therefore, when the wire harness 100 is deployed in a planar shape, depending on the IC tag 60, sufficient radiation intensity may not be obtained in the direction orthogonal to the plane in which the wire harness 100 is deployed.

On the other hand, in this case, two IC tags 60 are provided in the clip portion 22 in one clamp 20 so that the maximum radiation direction of the antenna 64 is orthogonal to each other. One of the tags 60 is considered to be able to ensure sufficient radiation intensity in the direction orthogonal to the plane. Accordingly, it becomes easy to reliably detect at least one of the two IC tags 60 provided on one clamp 20 by the detector 80. If the same identification information for the clamp 20 is stored in the two IC tags 60 provided in one clamp 20, the clamp 20 can be detected more reliably by the detector 80. Then, by comparing the detected clamp 20 with design information (for example, the design position of the clamp 20 and the shape of the clip portion 22), the clamp 20 is attached at an incorrect position, or It is possible to recognize a mounting error such as the clamp 20 being forgotten to be mounted.

Furthermore, the plane in which the wire harness 100 is developed is a plane including the extending direction of the wire harness 100. On the other hand, the maximum radiation direction of the antennas 64 of the two IC tags 60 in one clamp 20 is set in a direction intersecting the plane. For this reason, the maximum radiation direction of at least one of the two IC tags 60 in one clamp 20 extends toward the detector 80 with respect to the plane. As a result, at least one of the two IC tags 60 in one clamp 20 can be easily detected by the detector 80.

According to such a clamp 20, a clip portion 22 that includes a locking portion 30 that can be locked to an attachment object, a harness mounting portion 40 that is connected to the locking portion 30 and is attached to the electric wire 12, and an IC. In order to include an IC tag 60 including a chip 62 and an antenna 64 connected to the IC chip 62, and a plurality of IC tags 60 provided in the clip portion 22 in such a manner that the maximum radiation directions from which the radiation intensity from the antenna 64 becomes maximum intersect. When trying to read the IC tag 60 of the clamp 20 from a specific direction, at least one of the plurality of IC tags 60 can be easily read. At this time, if the same identification information of the electric wire 12 or the exterior part attached to the electric wire 12 is stored in the plurality of IC tags 60 provided in one clip portion 22, the identification information can be identified. Thereby, the identification information of the electric wire 12 or the exterior component attached to the electric wire 12 can be identified from as many directions as possible with a simple configuration. For this reason, the inspection etc. of the wire harness 100 become easy, and it leads to reduction of defective product production or defective product correction. Moreover, since the necessity of considering the direction of the clamp in the wire harness 100 falls also in a design stage, it leads to the expansion of a design freedom.

Further, since two IC tags 60 are provided so that the maximum radiation directions of the respective antennas 64 are orthogonal to each other, identification information can be identified from as many directions as possible while suppressing an increase in the number of IC tags 60.

In addition, one of the two IC tags 60 is provided on the clip portion 22 so that the maximum radiation direction of the antenna 64 coincides with the insertion direction of the locking portion 30. Even when 80 is held from a specific direction, one of the two IC tags 60 provided on the clamp 20 can be detected more reliably.

{Second Embodiment}
Next, the clamp 20A according to the second embodiment will be described. FIG. 6 is a perspective view showing a clamp 20A according to the second embodiment. In the description of the present embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In the clamp 20A according to the second embodiment, the shape of the clip portion 22A is different from the shape of the clip portion 22 of the clamp 20 according to the first embodiment.

Specifically, the harness attachment portion 40A of the clip portion 22A is formed so as to be fixed to the electric wire 12 with a band. More specifically, the harness attachment part 40 </ b> A includes a band part 50 and a band fixing part 52.

The band portion 50 is formed in a long band shape and is formed so as to be wound around the electric wire 12. The front end portion of the band portion 50 is formed so that the width becomes narrower and the thickness becomes thinner toward the front end. Thereby, it becomes easy to insert the band part 50 in the insertion hole 54h of the band fixing | fixed part 52 mentioned later. Further, here, a locking recess 50 h is formed in the tip side portion of the band portion 50.

Here, the locking recess 50h is formed on at least one of the pair of main surfaces of the band portion 50 (here, the main surface facing outward with the band portion 50 wound around the electric wire 12). Has been. The locking recess 50h is formed such that a part of the outward main surface of the band portion 50 is recessed toward the opposite main surface. A plurality of locking recesses 50 h are provided along the extending direction of the band portion 50. The locking recess 50h is formed so as to be selectively lockable with a locking protrusion protruding from an inner peripheral surface of an insertion hole 54h described later.

The band fixing part 52 is connected to one end of the band part 50. The band fixing portion 52 is formed so that the other end of the band portion 50 can be fixed in a state where the band portion 50 is wound around the electric wire 12.

Specifically, the band fixing portion 52 includes a band fixing main body portion 54 formed in a substantially rectangular parallelepiped shape. The band fixing main body portion 54 is formed with an insertion hole 54 h that penetrates a pair of main surfaces of the band fixing main body portion 54. The band part 50 is provided in such a manner as to protrude from one main surface orthogonal to the main surface in which the opening of the insertion hole 54h is formed. Moreover, the latching | locking part 30 is provided in the main surface on the opposite side to the main surface from which the band part 50 protrudes among the band fixing main-body parts 54. FIG.

The width dimension of the insertion hole 54h is set to be equal to or larger than the width dimension of the band portion 50 (here, slightly larger). Further, the height dimension of the insertion hole 54h is set to be equal to or larger than the thickness dimension of the band portion 50 (here, slightly larger). Further, a locking projection is projected from the inner peripheral surface of the insertion hole 54h.

Here, the locking projections are formed so as to be selectively lockable in a plurality of locking recesses 50 h provided in the band portion 50. Specifically, here, since the locking recess 50h is formed on the outwardly facing main surface of the band portion 50, the locking projection is formed on the inner peripheral surface of the insertion hole 54h on the locking portion 30 side. It protrudes from the peripheral surface.

In addition, the band portion 50 is movable from the opening of the insertion hole 54h toward the opening and is movable in the direction in which the band portion 50 is inserted while the locking protrusion is locked to the locking recess 50h. The shapes of the locking projections and the locking recesses 50h are formed so that they cannot move in the direction opposite to the direction in which they are inserted. As such shapes of the locking projection and the locking recess 50h, for example, the following shapes are conceivable.

That is, the locking projection has a first surface facing the opening on the side through which the band portion 50 is inserted and a second surface facing the opening on the opposite side. The first surface has an inclined surface that is inclined with respect to the inner peripheral surface of the insertion hole 54h from which the locking projection protrudes, and is set so as to approach the opening on the opposite side toward the tip side of the inclined surface. Yes. Further, the second surface is an orthogonal surface orthogonal to the inner peripheral surface. Similarly, the inner peripheral surfaces of the plurality of locking recesses 50h each have a first surface and a second surface, the first surface faces the front end side of the band portion 50, and the band portion 50 extends. An inclined surface that is inclined with respect to the current direction is formed, and the second surface is an orthogonal surface that is orthogonal to the extending direction of the band unit 50.

When the band portion 50 is inserted from the opening of the insertion hole 54h toward the opening, the inclined surface of the locking recess 50h and the inclined surface of the locking protrusion come into contact with each other. If the band portion 50 is further moved from this state in the direction of insertion, at least one of the inner peripheral surface of the locking recess 50h and the locking protrusion is elastically deformed, and the band in which the locking protrusion is locked Over the recess, it is locked in the next locking recess 50h. By repeating this, the band portion 50 can move through the insertion hole 54h in the insertion direction.

If the band projection 50 is moved in the direction opposite to the direction in which the band portion 50 is inserted while the locking projection is locked to the locking recess 50h, the orthogonal surface of the locking recess 50h and the locking projection Since the orthogonal surfaces are in contact with each other, both the inner peripheral surface of the locking recess 50h and the locking protrusion are not easily elastically deformed. Thereby, in a state where the locking projection is locked to the locking recess 50h, the band portion 50 cannot move in the direction opposite to the direction in which the band portion 50 is inserted. And by winding the band part 50 around the electric wire 12 and tightening it, the band part 50 becomes immovable in either direction of the insertion direction, and thus the clamp 20A is fixed to the electric wire 12. It becomes.

The two IC tags 60 are also provided in the clip portion 22A of the clamp 20A. One of them is attached to a recess 37 h provided at the tip of the rod-shaped portion 37 of the locking portion 30, similarly to the clamp 20 according to the first embodiment. The other is provided on the main surface of the band fixing main body 54 from which the band 50 protrudes. Thereby, the positional relationship between the two IC tags 60 in the clamp 20A is the same as the positional relationship between the two IC tags 60 in the clamp 20 according to the first embodiment. Therefore, also with such a clamp 20A, the same effects as those of the clamp 20 according to the first embodiment can be obtained for effects other than the fixing to the electric wire 12.

Moreover, according to such a clamp 20A, the clamp 20A can be attached to the electric wire 12 without using other members such as the tape 72.

In addition, each structure demonstrated by each said embodiment can be suitably combined unless it mutually contradicts.

Although the present invention has been described in detail as described above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Electric wire with clamp 12 Electric wire 20 Clamp 22 Clip part 22h Depression 30 Locking part 32 Dish part 33 Bottom part 34 Body part 36 Locking piece 37 Bar-shaped part 38 Wing part 40 Harness attachment part 42 Substrate part 44 Projection part 50 Band part 50h Engagement Stop recess 52 Band fixing part 54 Fixing main body part 54h Insertion hole 60 IC tag 62 IC chip 64 Antenna 70 Resin 72 Tape 80 Detector 82 Control part 84 Antenna 90 Car body panel

Claims

A clip part including a latch part formed so as to be latchable to an attachment object, and a harness attachment part connected to the latch part and attached to an electric wire;
An IC chip including an IC chip and an antenna connected to the IC chip, and a plurality of IC tags provided in the clip portion in a manner in which a maximum radiation direction from which the radiation intensity from the antenna is maximized intersects;
A clamp.
The clamp according to claim 1,
Two IC tags are provided so that the maximum radiation directions of the antennas are orthogonal to each other.
The clamp according to claim 2,
The locking portion can be inserted into a mounting hole formed in the mounting object, and can be locked after insertion.
One of the two IC tags is a clamp provided on the clip portion so that the maximum radiation direction of the antenna coincides with the insertion direction of the locking portion.
The clamp according to any one of claims 1 to 3,
The IC tag is a clamp provided to be embedded in the clip portion.
The clamp according to any one of claims 1 to 4,
The IC tag is a clamp attached to the clip portion.
The clamp according to any one of claims 1 to 5,
An electric wire with the clamp attached thereto;
An electric wire with a clamp.