JP2005318735A - Flat cable fixing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat cable fixing structure which can surely hold a flat cable and is abundant in generality. <P>SOLUTION: In the flat cable fixing structure where the flat cable 40 is fixed along a member 30 for attachment, the tip of a band part 13 is turned around the flat cable 40 and is locked to a base 11 after being passed through a bridge part 42 that the flat cable 40 has, using a cable clamp 10 which is equipped with the base 11 where a lock 12 to be fixed to the member 30 for attachment is made integrally and a band part 13 whose tip being made integrally in the base 11 and being extended from the base 11 is locked to the base 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a flexible flat cable fixing structure such as FPC (ie, Flexible Printed Circuit), FFC (ie, Flexible Flat Cable), ribbon electric wire, and the like.

  Conventionally, as an example of a flat cable fixing structure, a structure in which a flat cable is sandwiched and fixed between an upper plate and a lower plate is known (for example, see Patent Document 1).

As shown in FIGS. 4A, 4B, and 4C, the flat cable fixing structure disclosed in Patent Document 1 includes an upper plate 51 and a lower plate 52. A clamp 50 is used in which one end in the length direction is connected through a thin hinge 53 so as to be opened and closed. In order to attach the flat cables 70, 71, 72 to the vehicle body 73 using the clamp 50, the upper and lower plates 51, 52 of the clamp 50 are opened, and the flat cables 70, 52 are interposed between the upper and lower plates 51, 52 from the side. 71, 72 are stacked and sandwiched, and the shaft portion 54 of the upper plate 51 is inserted into the cylindrical portion 55 of the lower plate 52 on the other end side that does not interfere with the flat cables 70, 71, 72, and the flat cables 70, 71, 72 are inserted. Is inserted into the tube portion 55 through the shaft portion insertion hole 56 of the lower plate 52 of the shaft portion 54, and the convex portion 57 of the shaft portion 54 is fitted into the concave portion 58 of the tube portion 55 and fixed. Next, the blade-like latching portion 59 of the lower plate 52 is compressed and inserted into the clamp hole 74 of the vehicle body 73, and the latching step portion 60 expands, so that the clamp 50 is locked to the periphery of the clamp hole 74. 73 is fixed.
JP 2001-241408 A (page 3, FIG. 3)

However, in Patent Document 1, the flat cables 70, 71, 72 may be buckled in a certain direction.
Further, since the position of the thin hinge 53 to the position of the shaft portion 54 of the upper plate 51 or the position of the shaft portion insertion hole 56 of the lower plate 52 is the holding range of the flat cables 70, 71, 72, Since a flat cable with a large number of cores, that is, a wide flat cable cannot be clamped, a clamp having a clamping range corresponding to the width has to be newly created, and the versatility is poor.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the fixing structure of the flat cable which can hold a flat cable reliably, and is rich in versatility.

  1) A flat cable fixing structure according to the present invention is a flat cable fixing structure for fixing a flat cable along a member to be attached, and a locking portion fixed to the member to be attached is integrally formed. A cable clamp comprising: a base portion; and a band portion that is integrally formed with the base portion, and a tip portion that extends from the base portion is locked to the base portion. After passing through the bridge portion of the cable, the outer periphery of the flat cable is turned and locked to the base portion.

  Examples of the flat cable fixing structure described in 1) above include flexible ones such as FPC, FFC, and ribbon electric wire, and the configuration is that in which a conductor is formed on an insulating portion. In addition, the conductor needs to be exposed from the insulating portion, such as a case where the insulating portion (insulating coating) covering the conductor is peeled off.

According to the flat cable fixing structure described in 1) above, the distal end portion of the band portion passes through the bridge portion of the flat cable and is then locked to the base portion. Therefore, the holding force to the flat cable is increased, thereby preventing the shift in both the length direction of the flat cable and the direction orthogonal to the length direction, and holding the flat cable securely. Can do. As a result, buckling of the flat cable can be prevented.
In addition, if the locking position of the band part to the base part is changed, the flat cable holding diameter formed by the band part can be increased or decreased, so a wide flat with a large number of cores. Applicable with the same structure for cables, narrow flat cables with few cores, flat cables with multiple layers, and conductor diameters Can increase versatility.

  2) The flat cable fixing structure according to the present invention is the flat cable fixing structure described in 1) above, wherein the base portion has a band locking portion, and the band portion is the band locking portion. It is characterized in that a plurality of engagement holes to be locked in the longitudinal direction are provided.

  According to the flat cable fixing structure described in 2) above, when changing the locking position of the band portion to the base portion, the plurality of engagement holes of the band portion are selected in accordance with the outer shape of the flat cable. One may be fitted to the band locking portion of the base. Therefore, the flat cable can be easily fixed by the cable clamp.

  3) Further, the flat cable fixing structure according to the present invention is the flat cable fixing structure described in the above 1) or 2), wherein the flat cable is provided in a bridge portion disposed between a plurality of conductors. A band insertion hole through which the band portion is inserted is provided.

  According to the flat cable fixing structure described in 3), since the band insertion hole through which the band portion is inserted is provided in the bridge portion of the flat cable, when the flat cable is held, the tip of the band portion The portion can be easily passed through the flat cable. At this time, if a plurality of band insertion holes are provided in the bridge portion, the flat cable is bent or twisted by inserting the band portion through the band insertion hole that matches the fixing position of the cable clamp to the attached member. The flat cable can be fixed on the member to be attached in a stable state.

  According to the flat cable fixing structure of the present invention, it is possible to solve the problems that the flat cable is buckled and poor in versatility, and it is possible to reliably hold the flat cable and to have an effect of being versatile.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of a cable clamp for explaining an embodiment of a flat cable fixing structure according to the present invention. FIG. 2 is a front view when a single-layer flat cable is fixed by the cable clamp shown in FIG. 3 is a front view when a multilayer flat cable is fixed by the cable clamp shown in FIG.

  As shown in FIG. 1, a cable clamp 10 used in a flat cable fixing structure according to an embodiment of the present invention is a resin in which a base portion 11 having a locking portion 12 and a band portion 13 are flexible. It is integrally formed as a material.

  The base 11 is formed in a rectangular plate shape and abuts on a vehicle body panel (shown in FIG. 2) 30 which is a member to be attached. The base portion 11 is formed with a locking portion 12 protruding at the center portion of the lower surface. Since the locking portion 12 is formed in a wedge shape, the cable clamp 10 is secured to the vehicle body panel 30 by being fitted into the vehicle body panel 30.

  In addition, the base 11 has a band locking portion 14 protruding from the center of the upper surface. Since the band locking portion 14 is formed in a hook shape, a selected one of the plurality of engaging holes 15 formed in the band portion 13 is locked, so that the band portion 13 becomes the base portion. 11 is fixed.

  The band portion 13 extends from the end portion of the base portion 11, and a plurality of seven engagement holes 15 that are locked to the band locking portion 14 are provided in the length direction near the distal end portion. The selected one of the seven engaging holes 15 is locked to the band locking portion 14 of the base portion 11, thereby increasing or decreasing the flat cable holding diameter formed by the band portion 13. It is possible to As a result, the flat cable (shown in FIG. 2) has a large number of cores and a wide width, a small number of cores, a narrow width, or a plurality of stacked conductors (shown in FIG. 2). Even if the diameter of 41 is large or small, since it can be applied to any flat cable with the same structure, versatility can be improved.

  In order to increase or decrease the flat cable holding diameter formed by the band portion 13, one of the plurality of engagement holes 15 of the band portion 13 selected according to the outer shape of the flat cable 40 is selected. The flat cable 40 can be easily fixed by the cable clamp 10 because it is only necessary to fit the hook to the band locking portion 14 of the base portion 11. The engagement hole 15 is formed in a square hole shape, but is not limited to a square hole shape, and may be a round hole shape. Of course, in that case, it is preferable to form the band locking portion 14 of the base portion 11 into a round bar shape.

  As shown in FIG. 2, the flat cable 40 is a flexible electric wire such as an FPC, FFC, or ribbon electric wire, and six conductor portions 41 are integrally formed via five bridge portions 42. . Of the five bridge portions 42, a band insertion hole 43 through which the band portion 13 is inserted is formed in the center of the bridge portion 42 at a predetermined interval in the length direction of the flat cable 40. Is formed. The band insertion hole 43 is not limited to the bridge portion 42 at the center, and may be the bridge portion 42 at the end, the bridge portion 42 closer to the center portion, or may be formed in all the bridge portions 42. good. Since the band insertion hole 43 is formed in the bridge portion 42 of the flat cable 40, the front end portion of the band portion 13 can be easily passed through the flat cable 40 when the flat cable 40 is held.

  Further, in order to allow the band portion 13 to be inserted into the band insertion hole 43 that matches the position at which the cable clamp 10 is fixed to the vehicle body panel 30, the flat cable 40 is kept in a stable state without being bent or twisted. It can be fixed on the panel 30. At this time, the tip of the band part 13 in the cable clamp 10 may be formed in a sharp shape, and the band part 13 may be pierced into the bridge part 42. Then, the band portion 13 can be penetrated through the flat cable 40 without passing through the band insertion hole 43. And since the process of creating the band insertion hole 43 is omitted, man-hours can be reduced and work efficiency can be improved.

Next, a case where the single-layer flat cable 40 is fixed to the vehicle body panel 30 using the cable clamp 10 will be described with reference to FIG.
First, the base 11 is placed above the flat cable 40, the tip of the band portion 13 is inserted from above into the band insertion hole 43 of the central bridge portion 42, and the band portion 13 is pulled out below the flat cable 40. .

  Then, the band portion 13 inserted through the band insertion hole 43 of the bridge portion 42 is pulled around the flat cable 40 in the direction of the base 11, and the second engagement hole 15 from the distal end portion of the band portion 13 is connected to the base 11. The band locking portion 14 is locked. Thereby, the diameter for flat cable holding matched with the flat cable 40 is formed, and the flat cable 40 is held by the cable clamp 10. At this time, since the distal end portion of the band portion 13 penetrates the bridge portion 42 of the flat cable 40 and is locked to the band locking portion 14 of the base portion 11, the holding force for the flat cable 40 is increased. Accordingly, the flat cable 40 can be securely held by preventing the shift in both the length direction of the flat cable 40 and the direction orthogonal to the length direction. As a result, buckling of the flat cable 40 can be prevented.

  When the flat cable 40 is held by the cable clamp 10, the locking portion 12 is fitted into a clamp hole 31 formed in the vehicle body panel 30, so that the base 11 abuts on the vehicle body panel 30 and follows the vehicle body panel 30. The flat cable 40 is fixed.

  Next, the case where the multilayer flat cable 50 is fixed to the vehicle body panel 30 using the cable clamp 10 will be described with reference to FIG. The multi-layer flat cable 50 is formed by laminating two flat cables, and each of the seven conductor portions 51 is integrally formed via six bridge portions 52. Moreover, the band insertion holes 53 and 53 for inserting the band part 13 into each of the bridge parts 52 and 52 arranged third from the right end in FIG. The cable 50 is formed at a predetermined interval in the length direction.

  First, the base 11 is placed above the flat cable 50, the tip of the band portion 13 is inserted from above into the band insertion holes 53, 53 of the bridge portions 52, 52, and the band portion 13 is placed below the flat cable 50. Pull out.

  And the band part 13 inserted in the band insertion holes 53 and 53 of the bridge parts 52 and 52 is pulled around the outer periphery of the flat cable 50 toward the base 11, and the engagement hole 15 at the extreme end of the band part 13 is pulled. The band is locked to the band locking portion 14 of the base 11. As a result, a flat cable holding diameter matched to the multi-layer flat cable 50 is formed, and the flat cable 50 is held by the cable clamp 10.

  When the flat cable 50 is held by the cable clamp 10, the locking portion 12 is fitted into a clamp hole 31 formed in the vehicle body panel 30, so that the base portion 11 comes into contact with the vehicle body panel 30 and extends along the vehicle body panel 30. Thus, the flat cable 50 is fixed.

  As described above, the band portion 13 penetrated through the flat cables 40, 50 is pulled around the base cable 11 by turning the outer periphery of the flat cables 40, 50, so Since the flat cable holding diameter matched to the flat cables 40 and 50 can be formed by engaging with the stop portion 14, the multi-layer flat cable 50 can be formed even for the single-layer flat cable 40. In contrast, the cable clamp 10 having the same structure can be used for fixing along the vehicle body panel 30.

According to the flat cable fixing structure using the cable clamp 10 of the present embodiment, the front end portion of the band portion 13 passes through the bridge portions 42 and 52 of the flat cables 40 and 50 and is locked to the base portion 11. Therefore, the holding force with respect to the flat cables 40 and 50 is increased, and the flat cables 40 and 50 are prevented from being displaced in both the length direction and the direction perpendicular to the length direction. Can be securely held. As a result, the buckling of the flat cables 40 and 50 can be prevented.
Moreover, since the diameter for holding the flat cable formed by the band portion 13 can be increased or decreased by changing the locking position of the band portion 13 to the base portion 11, the number of cores is large. Same for wide flat cables, small number of cores, narrow flat cables, flat cables with multiple layers, and large and small conductor diameters The structure can be applied and versatility can be improved.

  In addition, according to the flat cable fixing structure of the present embodiment using the cable clamp 10, when changing the locking position of the band portion 13 to the base portion 11, among the plurality of engagement holes 15 of the band portion 13. One selected according to the outer shape of the flat cables 40 and 50 may be fitted to the band locking portion 14 of the base 11. Therefore, the flat cables 40 and 50 can be easily fixed by the cable clamp 10.

  Further, according to the flat cable fixing structure of the present embodiment using the cable clamp 10, the band insertion holes 43 and 53 through which the band portion 13 is inserted are provided in the bridge portions 42 and 52 of the flat cables 40 and 50. Therefore, when the flat cables 40 and 50 are held, the front end portion of the band portion 13 can be easily passed through the flat cables 40 and 50. Then, by inserting the band portion 13 through the band insertion holes 43 and 53 that match the position at which the cable clamp 10 is fixed to the vehicle body panel 30, the flat cables 40 and 50 are not bent or twisted. Can be fixed on the vehicle body panel 30 in a stable state.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. For example, as indicated by a virtual line in FIG. 3, the locking portion may be formed on the upper surface of the base portion. If it does so, it can hold | suppress so that the engagement hole of a band part may not remove | deviate from the band latching | locking part of a base. Moreover, the latching | locking part is not limited to the illustrated single figure, Two or more may be sufficient. If it does so, positioning with respect to the vehicle body panel of a cable clamp, especially direction determination can be ensured. Also, in order to avoid an increase in man-hours, instead of providing two locking parts, one locking part and a protrusion are provided, and the locking part and the protrusion are fitted into the two clamp holes of the vehicle body panel. It may be included.

  The multi-layer flat cable is not limited to two layers, and may be three layers, four layers, or more. And those flat cables can also be fixed on the vehicle body panel by assembling in the same manner as described above.

It is an external appearance perspective view of the cable clamp explaining one Embodiment of the fixation structure of the flat cable which concerns on this invention. It is a front view when a single layer flat cable is fixed by the cable clamp shown in FIG. It is a front view when a multilayer flat cable is fixed with the cable clamp shown in FIG. (A), (b), (c) is explanatory drawing of the procedure of the fixing structure of the conventional flat cable.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cable clamp 11 Base 12 Locking part 13 Band part 14 Band locking part 15 Engagement hole 30 Car body panel (attachment member)
41, 51 Conductor 40, 50 Flat cable 42, 52 Bridge part 43, 53 Band insertion hole

Claims (3)

A flat cable fixing structure for fixing a flat cable along a member to be attached,
A base portion integrally formed with a locking portion fixed to the mounted member; and a band portion formed integrally with the base portion and a tip portion extending from the base portion being locked to the base portion. Use the cable clamp provided
A flat cable fixing structure, wherein the end portion of the band portion is passed through a bridge portion of the flat cable, and then the outer periphery of the flat cable is rotated and locked to the base portion.   The said base part has a band latching | locking part, The said band part has provided the some engagement hole latched by the said band latching | locking part in the length direction. Flat cable fixing structure.   The flat cable is provided with a band insertion hole through which the band portion is inserted in a bridge portion disposed between a plurality of conductors. Construction.

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