JP2005343290A - Fixing structure of flat cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fixing structure of a flat cable capable of improving workability and securely holding the flat cable. <P>SOLUTION: A cable clamp 10 is equipped with a base substance 11 forming a hook 12 fixed to a vehicle body panel, a base 13 which is movably slid in the orthogonal direction relative to the axial direction of the flat cable 40 and disposed at the one side of the base substance 11, and a cover 14 fixed to the base 13 from the other side by sandwiching the base substance 11. In the fixing structure of the flat cable, the flat cable 40 is disposed on the base substance 11 and the base 13 by using the cable clamp 10, the flat cable 40 is sandwiched with the base substance 11, the base 13, and the cover 14 to formed and held in a shape of a strain relief, and fixed to the vehicle body panel with hook 12 of the base substance 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 flat cable fixing structure in which a flat cable is sandwiched between a band member and a main body member is known (see, for example, Patent Document 1).

  As shown in FIGS. 6A, 6 </ b> B, and 6 </ b> C, the flat cable fixing structure disclosed in Patent Document 1 has a band member 51 and a main body member 52 when the flat cable 70 is attached to the holder 50. After sandwiching the flat cable 70 therebetween, the other end portion of the band member 51 is inserted into the insertion hole 54 provided in the other end portion of the main body member 52 via the hinge 53, and the saw-like uneven portion is engaged with the engagement piece. By engaging with 55, the band member 51 and the main body member 52 are connected to fix the flat cable 70 to the holder 50.

  At this time, since the flat cable 70 can be pressed against the band member 51 by the long rib 56, the flat cable 70 can be held without processing the flat cable 70. Further, since the flat cable 70 is brought into surface contact with the long rib 56, the flat cable 70 can be prevented from moving with respect to the holder 50, and the flat cable 70 is stably held.

The non-return locking member 57 provided on the back surface of the main body member 52 is latched and locked to one side surface of the opening hole 81 of the vehicle body panel 80, so that the dish-shaped member 58 is connected to the other side surface of the vehicle body panel 80. To increase the locking force of the check locking body 57.
JP 2001-218341 A (page 5, FIG. 1)

However, in Patent Document 1, an unnecessary portion is formed on the other end portion of the band member 51 after the other end portion of the band member 51 is inserted and engaged with the insertion hole 54. Therefore, an additional work for cutting the unnecessary portion is required, and workability is poor.
Further, although the flat cable 70 is in surface contact with the rib 56, the holder 50 is likely to buckle with respect to the longitudinal direction of the flat cable 70.

  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 | maintain a flat cable reliably while being able to make workability | operativity favorable.

  1) A flat cable fixing structure according to the present invention is a flat cable fixing structure for fixing a flat cable along a vehicle body panel, and a base on which a hook fixed to the vehicle body panel is formed, and the flat cable. A cable clamp comprising: a base that is slidable in a direction perpendicular to the axial direction of the base and disposed on one side of the base; and a cover that is fixed to the base from the other side across the base The flat cable is disposed on the base and the base, and the flat cable is sandwiched between the base, the base and the cover, and is shaped and held in a strain relief shape by the hook of the base. It is fixed to the vehicle body panel.

  Here, examples of the flat cable in the invention described in 1) include flexible cables such as FPC, FFC, and ribbon electric wire.

  According to the flat cable fixing structure described in 1), the base is placed on the vehicle body panel, the flat cable is mounted on the base, and the base is assembled to the flat cable from one side of the base at that position. The base and base assembly is slid with respect to the base body along the flat cable routing route. Then, when the flat cable is arranged on a predetermined routing route, the cover is fixed to the base, and the hook is fixed to the vehicle body panel. As a result, the flat cable is formed into a strain relief shape by the base and the cover on the predetermined routing route and routed on the vehicle body panel. Therefore, the flat cable is formed into a strain relief shape by the base and the cover and is sandwiched between them, so that it does not buckle. Moreover, it is not necessary to cut the excess band member. Thereby, workability | operativity can be made favorable and a flat cable can be hold | maintained reliably.

  2) Further, the flat cable fixing structure according to the present invention is the flat cable fixing structure according to 1) above, wherein an electric wire support portion for independently supporting a plurality of electric wires included in the flat cable is formed on the base. It is characterized by having.

  According to the flat cable fixing structure described in 2) above, since the electric wire support portion of the base independently supports a plurality of electric wires of the flat cable, the positional deviation with respect to the direction orthogonal to the axial direction of the flat cable is prevented. Since it can be eliminated and the flat cable can be supported not for the whole but for each of the plurality of electric wires, the holding force can be increased.

  3) Moreover, the flat cable fixing structure according to the present invention is characterized in that, in the flat cable fixing structure described in 2) above, a pair of the wire support portions are arranged at both ends of the base.

  According to the flat cable fixing structure described in 3) above, since the flat cable is linearly supported between the two wire support portions by being supported by the wire support portions at both ends of the base, bending and twisting are prevented. The flat cable can be fixed on the routing route without occurring.

  4) Further, the flat cable fixing structure according to the present invention is the flat cable fixing structure according to any one of 1) to 3) above, wherein a plurality of electric wires of the flat cable are moved at the moving position of the base. Protrusions for supporting the bridge portion between them are formed on the base body.

  According to the flat cable fixing structure described in 4) above, the protrusion on the base is flat at the position where the assembly of the flat cable and the base is slid with respect to the base in accordance with the routing route of the flat cable. Supports the bridge portion of the cable. Thereby, the flat cable clamped by the base and the cover can be clamped more firmly on the base. At this time, if a plurality of protrusions are provided in the sliding movement direction of the base, the electric wire of the flat cable can be supported at any position where the assembly of the flat cable and the base is slid.

  According to the flat cable fixing structure of the present invention, it is possible to solve the problems that workability is poor and the flat cable is easily buckled in the longitudinal direction. Thereby, workability can be improved and an effect that the flat cable can be securely held is obtained.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. 1 is an exploded perspective view of a cable clamp for explaining an embodiment of a flat cable fixing structure according to the present invention, FIG. 2 is an external perspective view of the cable clamp shown in FIG. 1, and FIG. FIG. 4 is an explanatory view of the procedure for assembling the cable clamp shown in FIG. 1, and FIG. 5 is an explanatory view of the procedure for assembling the cable clamp at a position different from 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 includes a base body 11 on which a hook 12 is formed, a base 13, and a cover 14. .

  The base body 11 has a main body 15 formed in a rectangular plate shape, and a hook 12 projects downward from an end portion of the main body 15. The hook 12 has a hook-shaped elastic protrusion 17 formed on the lower side of the dish-shaped damper 16. The hook 12 is locked to the lower surface of the vehicle body panel 45 by the elastic protrusion 17 being pushed into an engagement hole 46 formed in the vehicle body panel (shown in FIG. 4), and comes into contact with the upper surface of the vehicle body panel 45. The base body 11 is secured to the vehicle body panel 45 by the damper 16.

  In the base 11, a plurality of protrusions 18 are formed in the longitudinal direction of the main body 15 at the center of the upper surface of the main body 15. The plurality of protrusions 18 are formed on the flat cable 40 more than the number of the six electric wires 42 connected via the five bridge portions 41, and the interval between them is the outer diameter of the electric wires 42. Are formed identically. The protruding portion 18 is a position where the assembly of the flat cable 40 and the base 13 is slid relative to the base body 11 in accordance with the routing route of the flat cable 40, and each bridge portion 41 of the flat cable 40 on the base body 11. Is supported independently. The flat cable 40 is a flexible electric wire such as an FPC, FFC, or ribbon electric wire.

  In the base 11, recesses 19 corresponding to the protrusions 18 are formed on both sides of the main body 15. The concave portion 19 guides the electric wires 42 of the flat cable 40 supported between the protruding portions 18 to the base 13 side.

  The base 13 is formed in a U-shape in a longitudinal sectional view. The base 13 is assembled to the main body 15 of the base body 11 from the lower surface side, which is one side, and is slidably arranged in the longitudinal direction of the main body 15. And in the state assembled | attached to the base | substrate 11, the two pairs of electric wire support parts 21 are formed on a pair of protrusion part 20 arrange | positioned at the both sides of the base | substrate 11. As shown in FIG. Since the wire support portion 21 is formed in six continuous concave shapes that approximate the outer diameter of each wire 42 of the flat cable 40, each wire 42 is placed in a direction perpendicular to the longitudinal direction of the base 11. The base 13 is supported independently at one end, and the other end of the base 13 is supported independently. Each electric wire support portion 21 of the base 13 can support the flat cable 40 linearly by independently supporting the six electric wires 42 of the flat cable 40, so that the flat cable 40 is not bent or twisted. The cable 40 can be placed on the routing path. Moreover, the position shift with respect to the direction orthogonal to the axial direction of the flat cable 40 can be eliminated. Furthermore, since the six electric wires 42 are independently supported, the holding force can be increased.

  On the base 13, four locking projections (locking projections arranged behind the four are not shown) 22 are formed on the outer surface of the protruding portion 20 in the longitudinal direction of the base body 11. Yes. Each locking projection 22 covers the base 13 assembled below the base 11 after the flat cable 40 is disposed on the base 11, and the flat cable 40 is attached to the base 13 and the cover 14. In the sandwiched state, the cover 14 is fixed by being engaged with the engagement holes 23 formed in the cover 14.

  The cover 14 is formed in a U-shape in a longitudinal sectional view larger than the base 13 and is covered with the base 13. In the cover 14, a cable pull-out recess 25 for pulling out the flat cable 40 is formed at the lower end portion of the side plate 24 arranged in the lateral direction with respect to the base body 11. In the cover 14, four engagement protrusions 23 are formed on the side portion of the side plate 26 disposed in the front-rear direction with respect to the base body 11. The central portion of the side plate 26 is formed in a concave shape to accommodate the base body 11.

  As shown in FIG. 2, in the cable clamp 10, the flat cable 40 is placed on the base body 11 placed on the vehicle body panel 45, and the base 13 is assembled from below the base body 11. At this time, the concave surface portion of each wire support portion 21 of the base 13 is matched with each wire 42 of the flat cable 40. And the assembly which consists of the flat cable 40 by which each electric wire 42 is supported by each electric wire support part 21 and the base 13 is slid along the main body 15 of the base | substrate 11, and the flat cable 40 is predetermined | prescribed routing path | route Place on top. Then, the cover 14 is put on the base 13 from above the assembly, and the locking protrusions 22 of the base 13 are locked in the engaging holes 23 of the cover 14. Then, the hook 12 is fixed to the vehicle body panel 45. The cable clamp 10 places the flat cable 40 on the base body 11 placed on the vehicle body panel 45, covers the flat cable 40 with the cover 14, places the flat cable 40 on a predetermined routing route, and then 13 may be fixed to the cover 14.

  As shown in FIG. 3, when the cover 14 is assembled so as to cover the base 13, the flat cable 40 is sandwiched between the back surface of the cover 14, the wire support portions 21 of the base 13, and the protrusions 18 of the base 11. As a result, it is bent into a strain relief shape having a substantially U shape and is firmly held by the cable clamp 10. As a result, the flat cable 40 is formed into a strain relief shape by the base 13, the cover 14, and the base body 11 and sandwiched therebetween, so that it does not buckle in the axial direction. Moreover, it is not necessary to perform the operation | work which cuts a surplus band member like the conventional one. As a result, workability can be improved and the flat cable 40 can be reliably held.

  As shown in FIG. 4, when the flat cable 40 is arranged at a position away from the engagement hole 46, the electric wires 42 of the flat cable 40 are connected between the protrusions 18 arranged on the distal end side of the base 11. After mounting, the base 13 and the cover 14 are assembled. Thereby, each protrusion 18 supports each bridge portion 41 of the flat cable 40.

  As shown in FIG. 5, when arranging the flat cable 40 at a position close to the engagement hole 46, the electric wires 42 of the flat cable 40 are connected between the protrusions 18 arranged on the hook 12 side of the base body 11. After mounting, the base 13 and the cover 14 are assembled. Thereby, each protrusion 18 supports each bridge portion 41 of the flat cable 40. At a position where the assembly of the flat cable 40 and the base 13 is slid with respect to the base body 11 in accordance with the routing route of the flat cable 40, the bridge portion 41 that the protrusion 18 on the base body 11 has in the flat cable 40 is provided. In order to support, the flat cable 40 clamped by the base 13 and the cover 14 can be firmly clamped on the base 11. Thus, since the flat cable 40 can be translated in a direction orthogonal to the axial direction according to the routing route of the flat cable 40 with a single cable clamp 10, the distance from the engagement hole 46 is reduced. Even when a plurality of cable clamps 10 are fixed at different positions, the operation can be performed very easily.

  As described above, according to the flat cable fixing structure of the present embodiment using the cable clamp 10, the base 11 is arranged on the vehicle body panel 45, the flat cable 40 is placed on the base 11, and at that position, From the lower side of the base 11, the base 13 is assembled to the flat cable 40, and the assembly of the flat cable 40 and the base 13 is slid relative to the base 11 along the route of the flat cable 40. Then, when the flat cable 40 is arranged on a predetermined routing route, the cover 14 is fixed to the base 13 and the hook 12 is fixed to the vehicle body panel 45. As a result, the flat cable 40 is formed into a strain relief shape by the base 13 and the cover 14 on the predetermined route and routed on the vehicle body panel 45. Therefore, since the flat cable 40 is formed into a strain relief shape by the base 13 and the cover 14 and sandwiched, the flat cable 40 does not buckle. Moreover, it is not necessary to cut the excess band member. Thereby, workability | operativity can be made favorable and the flat cable 40 can be hold | maintained reliably.

  Further, according to the flat cable fixing structure of the present embodiment using the cable clamp 10, the electric wire support portion 21 of the base 13 independently supports the plural electric wires 42 of the flat cable 40. The positional shift in the direction orthogonal to the axial direction can be eliminated, and the flat cable 40 can be supported not for the whole but for each of the plurality of electric wires 42, so that the holding force can be increased.

  Further, according to the flat cable fixing structure of the present embodiment using the cable clamp 10, the flat cable 40 is straight between the both wire support portions 21 by being supported by the wire support portions 21 at both ends of the base 13. Therefore, the flat cable 40 can be fixed on the routing route without causing bending or twisting.

  Further, according to the flat cable fixing structure of the present embodiment using the cable clamp 10, the assembly of the flat cable 40 and the base 13 is slid with respect to the base body 11 in accordance with the routing route of the flat cable 40. In this position, the protrusion 18 on the base 11 supports the bridge portion 41 of the flat cable 40. Thereby, the flat cable 40 clamped by the base 13 and the cover 14 can be clamped more firmly on the base 11.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. For example, the interval between the protrusions of the base and the inner diameter of the base electric wire support are changed and set according to the outer diameter of the electric wire of the flat cable. Thereby, the versatility with respect to a flat cable can be improved.

  Further, the base may be assembled from above with respect to the base on which the flat cable is placed, and the cover may be assembled from below the base. At this time, the flat cable may be placed on the upper surface or the lower surface of the base.

  Further, the number of hooks is not limited to the illustrated one, and may be two or more. If it does so, positioning with respect to the vehicle body panel of a cable clamp, especially direction determination can be ensured. In order to avoid an increase in man-hours, one hook and a protrusion may be provided without providing two hooks, and the hook and protrusion may be fitted into the two engagement holes of the vehicle body panel.

It is a disassembled perspective view of the cable clamp explaining one Embodiment of the fixation structure of the flat cable which concerns on this invention. It is an external appearance perspective view in the assembly state of the cable clamp shown in FIG. FIG. 3 is a cross-sectional view of FIG. 2. It is explanatory drawing of the assembly | attachment procedure of the cable clamp shown in FIG. It is explanatory drawing of the assembly | attachment procedure of the cable clamp in the position different from 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 body 12 Hook 13 Base 14 Cover 18 Projection part 21 Electric wire support part 40 Flat cable 41 Bridge part 42 Electric wire 45 Vehicle body panel

Claims (4)

A flat cable fixing structure for fixing a flat cable along a vehicle body panel, which is slidable in a direction perpendicular to the axial direction of the flat cable, and a base on which a hook fixed to the vehicle body panel is formed Then, using a cable clamp comprising a base disposed on one side of the base and a cover fixed to the base from the other side across the base,
After the flat cable is disposed on the base and the base, the flat cable is sandwiched between the base, the base and the cover, and is shaped and held in a strain relief shape. A flat cable fixing structure characterized by being fixed to a cable.   The flat cable fixing structure according to claim 1, wherein an electric wire support portion that independently supports a plurality of electric wires included in the flat cable is formed on the base.   The flat cable fixing structure according to claim 1 or 2, wherein the electric wire support portions are arranged in a pair at both end portions of the base.   The protrusion part which supports the bridge part which it has between the some electric wires of the said flat cable in the movement position of the said base is formed in the said base | substrate, The Claim 1 characterized by the above-mentioned. Flat cable fixing structure.

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