JP2008235097A - Flexible flat harness pinching member, and flexible flat harness housing case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible flat harness pinching member and a flexible flat harness housing case, which suppress manufacturing cost and hold a flexible flat harness at a prescribed position. <P>SOLUTION: The flexible flat harness housing case 200A is equipped with the base member 2 and a cover member 4, and constituted so that an FFC 1 and an FPC 3 are housed in the inner space S1 formed when the base member 2 and the cover member 4 are attached. One end side of the FFC 1 is folded at one part thereof so as to be superimposed, and pinched by the base member 2 and the cover member 4 in a state including a level difference 10a formed by that folding on the one end side, and that one end side is extended outside. Out of pinching faces of the base member 2 and the cover member 4, the pinching face opposite to the level difference 10a of the FFC 1 is formed into a level difference shape to match the shape of the level difference 10a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a holding member for holding a flexible flat harness such as a flexible printed circuit board (hereinafter referred to as FPC) and a flexible flat cable (hereinafter referred to as FFC), and a flexible flat harness housing case.

  Conventionally, electrical equipment and electrical distribution in a vehicle are generally performed using a wire harness in which electric wires are bundled. In recent years, due to high-density mounting of in-vehicle electrical components, it has become a problem to secure the route of the wire harness in the vehicle. Therefore, a flexible flat harness in which a plurality of conductors are arranged in a plane is used. This flexible flat harness is connected to another member and fixed at a predetermined position (see cited documents 1 and 2).

  Cited Document 1 discloses a configuration in which the FFC and the FPC are connected by welding, the FPC is provided in the casing, and the FFC is sandwiched between the edges of the casing. In Cited Document 1, the weld is coated with a reinforcing coating.

Further, the cited document 2 discloses a configuration in which an FPC and a connection terminal are connected and the connection portion is hardened with a resin.
JP 2006-248297 A JP 2002-203632 A

  However, although the configurations disclosed in the cited documents 1 and 2 hold the flexible flat harness in a predetermined position, the number of manufacturing steps is large and the manufacturing cost is high. Further, the configuration of the cited document 1 has a problem that the external force applied to the connecting portion is insufficiently relaxed, and the configuration of the cited document 2 hardens the connecting portion with a resin that is a different material. However, there is a problem that the manufacturing cost is further increased.

  Therefore, the present invention has been made to solve such a problem, and a flexible flat harness holding member that holds the flexible flat harness in a predetermined position while suppressing the manufacturing cost, and the flexible flat harness. The purpose is to provide a storage case.

  The sandwiching member according to one aspect of the present invention is a pair of sandwiching members that sandwich the flexible flat harness in a state where the flexible flat harness is folded so as to partially overlap and includes at least a part of the overlapped portion. Among the clamping surfaces of the pair of clamping members, the clamping surface facing the step formed by bending of the flexible flat harness is formed in a stepped shape that matches the shape of the step. And

  As described above, in the holding member according to the present invention, the holding surface is formed in a stepped shape that matches the shape of the step generated by bending the harness into the flexible flat. Therefore, when the flexible flat harness is pulled from the base end side, the pulling force is absorbed by the step of the flexible flat harness and the step of the clamping member. In addition, the flexible flat harness can be held at a predetermined position without being pulled out from the cover member. Moreover, since the flexible flat harness is a simple manufacturing process in which a part of the flexible flat harness is folded and sandwiched in a state including at least a part of the overlapped part, the manufacturing cost can be reduced.

  A flexible flat harness housing case according to an aspect of the present invention includes a base member and a lid member, and the flexible flat harness is housed in an internal space formed when the lid member is attached to the base member. In the flexible flat harness housing case configured to be possible, the flexible flat harness is bent so that a part of the flexible flat harness overlaps, and the base is included in a state where at least a step portion on one end side generated by the bending is included. The clamp member is clamped by the member and the lid member, and one end side thereof is extended to the outside. Of the clamping surfaces of the base member and the lid member, the clamping surface facing the step on the one end side matches the shape of the step. It is formed in a step shape.

  Further, the flexible flat harness is bent by the other end side of the step on the other end side that is bent and the other end side of the step on the other end side being sandwiched between the base member and the lid member. The structure accommodated in the state may be sufficient. By having such a configuration, the tension can be further relaxed by the bent portion of the flexible flat harness.

  In addition, the flexible flat harness is sandwiched between the base member and the lid member in a state in which a step on the other end side generated by bending is further included, and the other end side is extended to the outside. The sandwiching surface of the lid member that faces the step on the other end may be formed in a stepped shape that matches the shape of the step. The flexible flat harness may be clamped.

  As described above, according to the present invention, it is possible to provide a flexible flat harness holding member and a flexible flat harness housing case that hold down the flexible flat harness in a predetermined position while suppressing manufacturing costs.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[First embodiment]
First, with reference to FIG. 1 thru | or FIG. 4, the flexible flat harness accommodating case (flexible flat harness clamping member) 200A which concerns on 1st Embodiment of this invention is demonstrated.

  Specifically, the flexible flat harness housing case 200A according to the first embodiment is used as a housing of a lighting device for a vehicle. FIG. 1 is an external perspective view of a flexible flat harness housing case 200A according to the first embodiment of the present invention, and FIG. 2 shows an exploded state of FIG. 3 is a cross-sectional view taken along the line A-A ′ of FIG. 1, and FIG. 4 is a cross-sectional view taken along the line B-B ′ of FIG. 1.

  As shown in FIGS. 1 and 2, the flexible flat harness housing case 200 </ b> A according to the first embodiment has a base member 2 formed in a box shape having an upper opening and a box shape having a lower opening. The cover member 4 is formed and is capable of closing the opening of the base member 2. By closing the opening of the base member 2 by the cover member 4, an internal space S <b> 1 is formed. A part of the FFC 1 and the FPC 3 are accommodated.

  The FPC 3 to be accommodated is formed in a rectangular shape corresponding to the shape of the internal space formed by the base member 2 and the cover member 4 as shown in FIG. 2, and is cut out in a square shape at one corner. Thus, a notch 36 is formed. As shown in FIGS. 2 to 4, the FPC 3 is formed by forming a conductor layer 32 having a predetermined circuit pattern on the upper surface of the base material 31, and further covering it with a coverlay 33, and the base end 1 c of the FFC 1 of the FPC 3 is A peeling portion 3a in which the cover lay 33 is peeled off and the conductor layer 32 is exposed is formed at the connected portion. Further, the FPC 3 is provided with two sets (four sets) of LEDs 34 and two capacitance switches 35 used for lighting the LEDs 34 on the upper surface thereof. The LED 34 and the capacitive switch 35 are connected to the conductor layer 32 of the FPC 3.

  The FFC 1 in which a part is accommodated is formed in a band shape as shown in FIG. 2, and its base end 1 c is connected to the side 36 a of the notch 36 parallel to the longitudinal direction of the FPC 3. As shown in FIGS. 3 and 4, the FFC 1 is formed by forming a conductor layer 12 having a predetermined pattern on the upper surface of the base material 11 and further covering the conductor layer 12 with a coverlay 13. The base material 11 is made of PET, and the conductor layer 12 is made of electrolytic copper foil, rolled copper foil, or the like. As the coverlay 13, a UV curable resin, a coverlay film, or the like can be used. As shown in FIG. 2, the FFC 1 is bent in a right angle direction (90 ° direction) at a bent portion 1a to form an overlapping portion 1b on which the FFC 1 is overlapped, and protrudes from the short side of the housing case 200A. . A first step 10a is formed on the base end edge side on the surface side of the overlapped portion 1b, and a second step 10b is formed on the front end edge side of the back surface. The base end 1c of the FFC 1 is not covered with the cover lay 13, and the conductor layer 12 is exposed. For example, in the FFC 1, the conductor layer 12 is made of copper foil (width 2.5 mm × thickness 150 μm × 3 cores), and the combined thickness of the base material 11 and the coverlay 13 is 50 μm.

  The base member 2 is made of an insulator such as resin (polypropylene), and includes a rectangular plate portion 21 and a frame portion 22 protruding vertically upward from the entire edge of the plate portion 21 as shown in FIG. Yes. The inner side of the frame pair 22 of the base member 2 corresponds to the shape of the FPC 3 and is formed to be the same as or slightly larger than that, and the thickness of the base member 2 is, for example, 2 mm.

  As shown in FIGS. 2 to 4, a cutout portion 221 is formed at a portion of the frame portion 22 where the extended FFC 1 hits, and a bottom portion 221 a of the cutout portion 221 extends inward. A base portion 211 having a height lower than that of the bottom portion 221a is formed in a portion adjacent to the base end side of the bottom portion 221a of the notch portion 221 of the plate portion 21, and a step 2a is formed at the boundary between them. Both the notch 221 and the base 211 are formed with substantially the same width as the FFC 1. In addition, an engagement protrusion 222 that protrudes outward is provided in the vicinity of the notch 221 outside the frame part 22.

  The cover member 4 is made of an insulator such as resin (polypropylene), and includes a rectangular plate portion 41 and a frame portion 42 that protrudes vertically downward from the edge of the plate portion 41 as shown in FIG. . For example, the thickness of the cover member 4 is 2 mm.

  As shown in FIGS. 1 and 2, the position of the plate portion 41 corresponding to the LED 34 on the FPC 3 is formed by the transparent resin 412, and the position corresponding to the capacitance switch 35 on the FPC 3 is a conductive material. 413. As shown in FIGS. 2 to 4, when the cover member 4 of the frame portion 42 of the cover member 4 is attached to the base member 2, a notch portion 421 is formed at a position aligned with the notch portion 221 of the base member 2. The upper surface 421 a of the notch 421 extends inward to a position facing the base end of the base 211 of the base member 2. In addition, an engaging claw 422 that can be engaged with the engaging protrusion 222 is provided at a position that aligns with the engaging protrusion 222 of the base member 2 of the frame portion 42.

  The upper end of the frame portion 22 of the base member 2 is configured to come into contact with the plate portion 41 of the cover member 4 when the cover member 4 is attached to the base member 2. The folded FFC 1 is sandwiched between the surface of 221 a and the base 211 and the upper surface 421 a of the notch 421 of the cover member 4. That is, the height of the frame part 22, the notch part 221 and the base part 211 of the base member 2 and the height of the notch part 421 of the cover member 4 are determined when the cover member 4 is attached to the base member 2. The distance between the notch portion 221 and the notch portion 421 of the cover member 4 is the same as the thickness of the FFC 1, the height of the step 2 a is the same as the thickness of the FFC 1, and the notch portion of the convex portion 221 of the base member 2 and the cover member 4. The interval between the upper surfaces 421a of 421 is the same as twice the thickness of FFC1.

  In the flexible flat harness housing case 200 </ b> A according to the first embodiment, the FPC 3 is disposed on the plate portion 21 of the base member 2, and slides laterally on the plate portion 21 by the frame portion 22 and the base portion 211. Never do. The FFC 1 is arranged so that its base end 1 c is positioned at the peeling portion 3 a of the FPC 3 and its distal end side extends from the notch portion 221 to the outside of the base member 2 in a state where it is bent by 90 °. The overlapping portion 1 b is placed on the base portion 211 of the base member 2. Thus, the FFC 1 and the FPC 3 are arranged and electrically connected. The base end 1c of the FFC 1 and the peeling portion 3a of the FPC 3 are connected by resistance welding, piercing, or the like. The first step 10 a is aligned with the step 2 a between the convex portion 221 and the notch portion 221.

  The cover member 4 is fixed to the base member 2 by the engagement of the engagement claws 422 and the engagement protrusions 222. By this fixing, the folded FFC 1 is sandwiched between the bottom surface 221 a of the notch part 221 and the surface of the base part 211 and the upper surface 421 a of the notch part 421 of the cover member 4.

  Here, as shown in FIG. 4, when the external force F1 that pulls the FFC 1 toward the tip side is applied to the FFC 1, the first step 10a of the FFC 1 presses the step 2a of the base member 2, so the external force F1 It is absorbed by the step 2a of the member 2. Thereby, the external force F1 is not applied to the connection portion between the base end 1c of the FFC 1 and the peeling portion 3a of the FPC 3, and the separation of the FFC 1 can be prevented.

  For example, the conductive layer 12 is made of copper foil (width 2.5 mm × thickness 150 μm × 3 cores), the base material 11 and the coverlay 13 are made of PET (thickness 50 μm), FFC 1 is made of polypropylene, and the base member is 2 mm thick. When sandwiched between 2 and the cover member 4, the allowable tensile force is about 150N.

  Moreover, according to the said structure, it is a simple manufacturing process of bend | folding FFC1 and pinching the bent FFC1 by the base member 2 and the cover member 4, and can fully prevent detachment | leave of FFC1 from the structure. Therefore, there is no need to protect the base end 1c of the FFC 1 and the peeling portion 3a of the FCP 3 with a protective coating (laminate) or a resin mold. Therefore, according to the said structure, manufacturing cost can be held down.

  Further, according to the above configuration, since the FFC 1 is bent and the bent FFC 1 is sandwiched between the base member 2 and the cover member 4, the entire thickness of the flexible flat harness housing case 200A is reduced. can do.

[Second Embodiment]
Next, with reference to FIG.5 and FIG.6, the flexible flat harness accommodating case (flexible flat harness clamping member) 200B which concerns on 2nd Embodiment of this invention is demonstrated. Specifically, the flexible flat harness housing case 200B according to the second embodiment is used as a housing of a lighting device for a vehicle. FIG. 5 is an exploded perspective view of the flexible flat harness housing case 200B according to the second embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along the line CC ′ in FIG. Note that in the second embodiment, identical symbols are assigned to configurations similar to those in the first embodiment and descriptions thereof are omitted.

  As shown in FIGS. 5 and 6, the flexible flat harness housing case 200 </ b> B according to the second embodiment includes a base member 2 ′ formed in a box shape having an upper opening and a box shape having a lower opening. The cover member 4 ′ is formed to be capable of closing the opening of the base member 2 ′. By closing the opening of the base member 2 ′ by the cover member 4 ′, the internal space S2 is formed, which will be described later. A part of the FFC 1 ′ and the FPC 3 ′ are accommodated in the internal space S 2.

  The cutout portion 36 ′ of the FPC 3 ′ is cut longer in the width direction than in the first embodiment. As shown in FIG. 5, the FFC 1 ′ is bent at the distal end side with respect to the first embodiment, and a bent portion 1 a ′ is formed at a position away from the base end 1 c.

  As shown in FIGS. 5 and 6, the base portion 211 ′ of the base member 2 ′ is formed longer in the width direction than the bottom surface 221 a of the notch portion 221, unlike the first embodiment.

  As shown in FIG. 6, in the second embodiment, the first protrusion is located at a position facing the connecting portion between the base end 1 c of the FFC 1 ′ on the lower surface of the plate portion 41 of the cover member 4 ′ and the peeling portion 3 a of the FPC 3 ′. A portion 43a is formed. Further, a second surface projecting downward is formed on the surface of the notch 421 of the cover member 4 ′ facing the position formed longer in the width direction than the bottom surface 221 a of the notch 221 of the base portion 211 ′ of the base member 2 ′. A protruding portion 43b is formed.

  The cover member 4 ′ is attached to the base member 2 ′, and the folded FFC 1 ′ is sandwiched between the bottom surface 221a of the cutout portion 221 and the surface of the base portion 211 ′ and the top surface 421a of the cutout portion 421 of the cover member 4 ′. At the same time, the connecting portion between the base end 1c of the FFC 1 ′ and the peeling portion 3a of the FPC 3 ′ is sandwiched between the first protrusion 43a and the plate portion 21 of the base member 2 ′, and the second protrusion 43b and the base 211 ′ , The base end side of the second step 10b of the FFC 1 ′ is sandwiched. In other words, the height of the first protrusion 43a is such that when the cover member 4 ′ is mounted on the base member 2 ′, the distance between the first protrusion 43a of the cover member 4 ′ and the plate portion 21 of the base member 2 ′. The thickness is the same as the combined thickness of the peeling portion 3a of the FPC 3 ′ and the base end 1c of the FFC 1 ′. The height of the second protrusion 43b is the distance between the second protrusion 43b of the cover member 4 ′ and the base 211 ′ of the base member 2 ′ when the cover member 4 ′ is attached to the base member 2 ′. Is configured to be the same as the thickness of the FFC 1 ′. Therefore, the 1st protrusion part 43a and the 2nd protrusion part 43b function as a clamping part which clamps FFC1 'between the 2nd level | step difference 10b and the base end 1c, and FFC1' is as shown in FIG. It bends in a state where the excess length portion 1d is formed.

  In the flexible flat harness housing case 200B according to the second embodiment, the bent FFC 1 ′ is notched portions 221 and 421 of the base member 2 ′ and the cover member 4 ′ and the base portion 211 as in the first embodiment. Since it is clamped not only by “etc.” but also by the first projecting portion 43 a and the second projecting portion 43 b of the cover member 4 ′, it is possible to further prevent the FFC 1 ′ from being detached than in the first embodiment. Further, when an external force that pulls FFC 1 ′ in the proximal direction is applied to FFC 1 ′ and a deviation occurs in FFC 1 ′, the extra length portion 1 d can compensate for the deviation, and thus an external force applied to the proximal end 1 c of FFC 1 ′. Can be suppressed. In addition, the flexible flat harness housing case 200B according to the second embodiment can reduce the manufacturing cost as in the first embodiment.

[Third embodiment]
Next, with reference to FIG. 7 thru | or FIG. 9, 200 C of flexible flat harness accommodation cases (flexible flat harness clamping member) which concern on 3rd Embodiment of this invention are demonstrated. The flexible flat harness housing case 200C according to the third embodiment is used as a connector housing for connecting the FFC to a counterpart connection terminal (not shown). 7 is an exploded perspective view of the flexible flat harness housing case 200C according to the third embodiment of the present invention, FIG. 8 is a cross-sectional view taken along the line DD ′ in FIG. 7, and FIG. FIG. Note that in the third embodiment, identical symbols are assigned to configurations similar to those in the first and second embodiments and descriptions thereof are omitted.

  As shown in FIG. 7, the flexible flat harness housing case 200 </ b> C according to the third embodiment is provided with a plurality of connection terminals 5, and a housing 6 whose upper surface is partially opened, and an opening of the housing 6 can be closed. The internal space S3 is formed by closing the opening of the housing 6 by the retainer 7, and a part of the FFC 1 ″ is accommodated in the internal space S3. Compared to the first embodiment, the housing 6 corresponds to a base member, and the retainer 7 corresponds to a cover member.

  The FFC 1 ″ is bent at 90 ° in a direction different from that of the first and second embodiments at the bent portion 1 a ″. Further, the FFC 1 ″ has slits 1 e between the conductor layers 12 at the base end 1 c. The base end 1 c of the FFC 1 ″ is connected to the connection terminal 5.

  As shown in FIGS. 7 and 8, the housing 6 is formed on a base end side (left side in FIG. 8) and connected to a counterpart housing (not shown). A plurality of terminal insertion holes 62 for inserting the connection terminals 5 and a mounting portion 63 for mounting the FFC 1 ″ are provided.

  As shown in FIGS. 7 and 8, the connection terminal 5 has a connection portion 51 that can be connected to a counterpart connection terminal (not shown) on the base end side, and a locking hole portion 52 formed on the distal end side of the connection portion 51. And have. A portion of the front end side of the locking hole 52 is connected to the base end 1c of the FFC 1 ″.

  The mounting portion 63 is formed in a box shape whose upper side is opened in a rectangular shape, a rectangular plate-like plate portion 631, and a frame portion 632 extending vertically upward from an edge excluding the base end side of the plate portion 631. A plurality of shelf-like terminal support portions 633 on which the connection terminals 5 formed on the distal ends of the plurality of terminal insertion holes 62 are placed are provided. The terminal support part 633 has the same thickness as the FFC 1 ″. The connection terminal 5 is disposed so as to protrude from the top end side of the upper surface of the terminal support portion 633, and the base end 1 c of the FFC 1 ″ is sandwiched between the connection terminal 5 and the plate portion 631 and is electrically connected to the connection terminal 5. Connected.

  A cutout portion 632a is formed at a portion of the frame portion 632 that contacts the extended FFC 1 ''. A step 63a is formed at the boundary between the bottom surface of the notch 632a and the top surface of the plate portion 631, as shown in FIG. The notch 632a is formed to have substantially the same width as that of the FFC 1 ''. Further, an engaging protrusion 632 b that protrudes outward is provided on the outer side near the tip of the longitudinal side of the frame portion 632.

  The retainer 7 includes a plate part 71 capable of closing the opening of the housing 6 and a protrusion part 72 protruding vertically upward from the base end of the plate part 71, and via a hinge part 64 at the base end of the upper surface of the protrusion part 72. The housing 6 is integrally provided.

  7 and 8, on the bottom surface of the retainer 7, when the opening of the housing 6 is closed by the retainer 7, a base 711 extending in the width direction from a position facing the notch 632a of the housing 6. Protrudes downward, and the base portion 711 is formed to have the same width as the notch portion 632a and to fit into the notch portion 632a.

  As shown in FIG. 7, a plurality of partition walls 712 that fit in the slits 1e of the FFC 1 ″ and separate the conductor layers 12 when the retainer 7 is mounted on the housing 6 are provided on the base end side of the base 711. A plurality of locking hole protrusions 713 are formed on the base end side of the partition wall portion 712 and engage with the locking hole portions 52 of the connection terminals 5 when the retainer 7 is attached to the housing 6. Has been. Further, an engaging claw 714 that can be engaged with the engaging protrusion 632b is provided at a position that is aligned with the engaging protrusion 632b on the distal end side of the frame portion 72.

  The upper end of the frame portion 632 of the housing 6 is configured to come into contact with the plate portion 71 of the retainer 7 when the retainer 7 is attached to the housing 6, and at this time, the bottom surface of the notch 632 a of the housing 6 and The folded FFC 1 ″ is sandwiched between the upper surface of the plate portion 631 and the surface of the base portion 711 of the retainer 7. That is, the heights of the frame portion 632 and the notch portion 632a of the housing 6 and the height of the base portion 711 of the retainer 7 are such that when the retainer 7 is mounted on the housing 6, the notch portions 632a and the retainer 7 of the housing 6 are The distance between the base part 711 is the same as the thickness of the FFC1 ″, the height of the step 63a is the same as the thickness of the FFC1 ″, and the distance between the plate part 631 of the housing 6 and the base part 711 of the retainer 7 is FFC1. It is configured to be the same as twice the thickness of ''.

  In the flexible flat harness housing case 200C according to the third embodiment, the bent FFC 1 '' has the notch 632a of the housing 6 and the retainer 7 in a state where the first step 10a is in contact with the step 63a. Is sandwiched by the base portion 711 of the base plate.

  Here, as shown in FIG. 9, when an external force F2 that pulls FFC1 ″ toward the distal end is applied to FFC1 ″, the first step 10a of FFC1 ″ presses the step 63a of the housing 6. The external force F2 is absorbed by the step 63a. Accordingly, the external force F2 is not applied to the connection portion between the base end 1c of the FFC 1 "and the connection terminal 5, and the FFC 1" can be prevented from being detached. In addition, the flexible flat harness housing case 200C according to the third embodiment can reduce the manufacturing cost due to its simple structure.

[Fourth embodiment]
Next, a flexible flat harness housing case (flexible flat harness holding member) 200D according to a fourth embodiment of the present invention will be described with reference to FIGS. The flexible flat harness housing case 200D according to the fourth embodiment is used as a housing for a fixing clip that fixes the FFC in a bent state at a predetermined position. 10 is a perspective view of a flexible flat harness housing case 200D according to the fourth embodiment of the present invention, FIG. 11 is an exploded perspective view of FIG. 10, and FIG. It is FF 'sectional drawing of FIG. 10 which shows a state. Note that in the fourth embodiment, identical symbols are assigned to configurations similar to those in the first through third embodiments and descriptions thereof are omitted.

  As shown in FIGS. 10 and 11, the flexible flat harness housing case 200 </ b> D according to the fourth embodiment has a configuration in which the FFC extends from two sides that intersect at right angles, unlike the first to third embodiments. Have. The flexible flat harness housing case 200 </ b> D is composed of a base member 8 having a substantially square shape and a partially protruding edge, and a cover member 9 formed in a square shape similar to the base member 8. . The cover member 9 is formed integrally with the base portion 8 via a hinge portion 81 provided on one side thereof. By covering the base member 8 with the cover member 9, an internal space S4 is formed, and the internal space A part of FFC1 ′ ″ is accommodated in S4. The accommodated FFC 1 ″ ″ does not have the base end 1 c from which the conductor layer 12 is exposed.

  As shown in FIG. 11, the base member 8 includes a substantially square plate portion 82, a first frame portion 83 formed in an L shape so as to follow two intersecting edges of the plate portion 82, and its first The second frame portion 84 is formed in a rectangular shape at a position opposite to the corner of the one frame portion 83, and the first frame portion 83 and the second frame portion 84 have the same height vertically upward. Protrusively formed. The interval between the first frame portion 83 and the second frame portion 84 on each of the two edges of the plate portion 82 where the first frame portion 83 is not formed is substantially the same as the width of the FFC 1 ′ ″. It is formed to become.

  A first protrusion 85 protruding vertically upward is provided between the first frame part 83 and the second frame part 84 at one edge where the first frame part 83 of the plate part 82 is not formed. . The first protruding portion 85 is formed lower than the first frame portion 83 and the second frame portion 84, and the first step 8 a is formed by the boundary between the upper surface of the first protruding portion 85 and the upper surface of the plate portion 82. Is formed. Further, the cover member 9 is mounted on the outer edge of the upper surface of the first frame portion 83 on the side opposite to the first projecting portion 85 via a hinge portion 81, and the hinge portion 81 of the first frame portion 83 is formed. Engagement protrusions 83 a and 84 a are formed on the outer side surface of the non-side and the outer side surface of the second frame portion 84.

  As shown in FIG. 11, when the base member 8 is covered with the cover member 9, the base member 8 faces the side where the first projecting portion 85 between the first frame portion 83 and the second frame portion 84 is not formed. A second projecting portion 92 projecting downward is formed on the bottom surface of the cover member 9, and the second projecting portion 92 is a first base member 8 on the side where the first projecting portion 85 is not formed. The frame 83 has the same width as that between the frame 83 and the second frame 84, and is formed so as to fit between them. Furthermore, when the cover member 9 is put on the base member 8 on the bottom surface of the cover member 9, it faces the side where the first projecting portion 85 between the first frame portion 83 and the second frame portion 84 is formed. A base portion 94 extending inwardly from the position where the first projecting portion 85 is formed protrudes downward. The base portion 94 includes a first frame portion 83 and a second frame of the base member 8 on the side where the first protrusion portion 85 is formed. It is formed so as to fit in the same width as that between the portions 84. A step 9 a is formed by the boundary between the lower surface of the second protrusion 92 and the lower surface of the base 94. Further, the cover member 9 is engageable with the engaging protrusions 83a and 84a at both side surfaces located on the base end side (left side in FIG. 11) and aligned with the engaging protrusions 83a and 84a. Engaging claws 93 are provided. A fixing pin 100 made of a resin molded member or the like is formed at the center of the upper surface of the plate portion 91 of the cover member 9.

  The fixing pin 100 is insert-molded at the time of molding, for example. The fixing pin 100 has a rectangular base portion 101 and a pressing piece having elasticity that presses an opening peripheral portion of a hole portion H (see FIG. 12) provided on the fixing member M provided on the base portion 101. 102 and an umbrella-shaped tip portion 103 that is provided on the center portion of the presser piece 102 and is inserted into the hole portion H.

  The upper ends of the first frame portion 83 and the second frame portion 84 of the base member 8 are configured to contact the plate portion 91 of the cover member 9 when the cover member 9 is put on the base member 8. At that time, the upper surface of the first protruding portion 85 and the upper surface of the plate portion 82 of the base member 8 and the lower surface of the base portion 94 of the cover member 9 sandwich the stepped portion 10a side of the folded FFC 1 ′ ″. The upper surface of the plate portion 82 of the base member 8 and the lower surface of the second projecting portion 92 and the base portion 94 of the cover member 9 are configured to sandwich the stepped portion 10b side of the folded FFC 1 ′ ″. That is, the height of the first frame portion 83, the second frame portion 84, and the first projecting portion 85 of the base member 8 and the height of the base portion 94 of the cover member 9 cover the base member 8 with the cover member 9. The distance between the first projecting portion 85 of the base member 8 and the base portion 94 of the cover member 9 is the same as the thickness of the FFC 1 ′ ″, and the height of the first step 8a is the thickness of the FFC 1 ′ ″. And the distance between the plate portion 82 of the base member 8 and the base portion 94 of the cover member 9 is the same as twice the thickness of the FFC 1 ′ ″. The distance between the two protrusions 92 is the same as the thickness of the FFC 1 ′ ″, and the height of the step 9a is the same as the thickness of the FFC 1 ′ ″.

  In the flexible flat harness housing case 200D according to the fourth embodiment, the folded FFC 1 ′ ″ has the base member 8 and the cover in a state where the first step 10a is in contact with the first step 8a. It is clamped by the member 9. The bent FFC 1 ″ ″ is sandwiched between the base member 8 and the cover member 9 with the second step 10 b in contact with the step 9 a.

  Here, as shown in FIG. 10, when an external force F3 that pulls FFC1 ′ ″ in one direction is applied to FFC1 ′ ″, the first step 10a of FFC1 ′ ″ becomes the first step 8a of the base member 8. The external force F3 is absorbed by the first step 8a. On the other hand, when the external force F4 that pulls the FFC 1 ′ ″ to the other is applied to the FFC 1 ′ ″, the second step 10b of the FFC 1 ′ ″ presses the second step 9a of the cover member 9, so the external force F4 Is absorbed by the second step 9a. This prevents the FFC 1 ″ ″ from being detached by the external force F 3 and the external force F 4. In addition, the flexible flat harness housing case 200D according to the fourth embodiment can reduce the manufacturing cost due to its simple structure.

  Further, as shown in FIGS. 13 and 14, FPC 3 ″ may be sandwiched between the flexible flat harness housing case 200 </ b> D instead of FFC 1 ″ ″.

  The FPC 3 ″ has, for example, a plurality of LEDs 39 on the surface thereof, and is formed in a strip shape in the same manner as the FFCs 1, 1 ′, 1 ″ of the first to third embodiments. The FPC 3 ″ includes a base material 31, a conductor layer 32, and a cover lay 33 as in the first and second embodiments. The FPC 3 ″ is bent in a right angle direction (90 ° direction) by a bent portion 3a ″, and a first step 3b is formed on the base end side from the bent portion 3a ″. A second step is formed on the side.

  Although the embodiments of the present invention and the manufacturing method thereof have been described above, the present invention is not limited to these embodiments, and various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention.

  For example, the first to third embodiments may be configured to use the FPC 3 ″ as in the fourth embodiment instead of the FFCs 1, 1 ′, and 1 ″. In the first to fourth embodiments, one FFC or FPC is held in a folded state, and the position thereof is held. However, a plurality of FFCs or FPCs are held in a folded state, The structure which hold | maintains a position may be sufficient. Moreover, although 1st thru | or 4th embodiment is the structure which fixes between a base member and a cover member with a latching protrusion and a latching claw, it may be a screw stopper.

It is a perspective view of flexible flat harness storage case 200A concerning a 1st embodiment of the present invention. It is an external appearance perspective view which shows the decomposition | disassembly state of 200 A of flexible flat harness accommodation cases which concern on 1st Embodiment of this invention. It is A-A 'sectional drawing of FIG. FIG. 3 is a B-B ′ sectional view of FIG. 2. It is an external appearance perspective view which shows the decomposition | disassembly state of the flexible flat harness accommodation case 200B which concerns on 2nd Embodiment of this invention. FIG. 6 is a cross-sectional view taken along the line C-C ′ during assembly of FIG. 5. It is an external appearance perspective view which shows the decomposition | disassembly state of 200 C of flexible flat harness accommodation cases which concern on 3rd Embodiment of this invention. It is D-D 'sectional drawing at the time of the assembly of FIG. It is E-E 'sectional drawing at the time of the assembly of FIG. It is a perspective view of flexible flat harness storage case 200D which concerns on 4th Embodiment of this invention. It is an external appearance perspective view which shows the decomposition | disassembly state of flexible flat harness accommodation case 200D which concerns on 4th Embodiment of this invention. It is F-F 'sectional drawing of FIG. It is a perspective view at the time of pinching FPC3 '' with flexible flat harness storage case 200D which concerns on 4th Embodiment of this invention. It is G-G 'sectional drawing of FIG.

Explanation of symbols

  1, 1 ', 1 ", 1'" ... FFC, 2, 2 ', 8 ... Base member, 3, 3', 3 "... FPC, 4, 4 ', 9 ... Cover member, 5 ... Connection Terminal, 6 ... Housing, 7 ... Retainer, 1a, 1a ', 1a' ', 3a' '... Bending part, 1b ... Overlapping part, 10a ... First step, 10b ... Second step, 1c ... Base end, 1d ... extra length part, 2a, 63a, 8a, 9a ... step, 200A, 200B, 200C, 200D ... flexible flat harness housing case.

Claims (5)

A pair of sandwiching members that sandwich the flexible flat harness in a state in which the flexible flat harness is folded so as to partially overlap, including at least a part of the overlapped portion,
Of the sandwiching surfaces of the pair of sandwiching members, the sandwiching surface that faces the step formed by the bending of the flexible flat harness is formed in a step shape that matches the shape of the step. Flexible flat harness clamping member. In a flexible flat harness housing case comprising a base member and a lid member and configured to accommodate a flexible flat harness in an internal space formed when the lid member is attached to the base member,
The flexible flat harness is bent so that a part thereof is overlapped, and is sandwiched between the base member and the lid member in a state where at least one stepped portion formed by the bending is included, and one end side of the flexible flat harness is external Extended to
Of the holding surfaces of the base member and the lid member, the holding surface facing the step on the one end side is formed in a stepped shape that matches the shape of the step. .   The flexible flat harness is bent when the other end side of the step on the other end side that is bent and the other end side is sandwiched between the base member and the lid member. The flexible flat harness storage case according to claim 2, wherein the flexible flat harness storage case is stored. The flexible flat harness is sandwiched between the base member and the lid member in a state in which a step on the other end side generated by bending is further included, and the other end side is extended to the outside.
The holding surface which opposes the level | step difference of the said other end side among the clamping surfaces of the said base member and a cover member is formed in the level | step difference shape matched with the shape of this level | step difference. Flexible flat harness housing case.   The flexible flat harness housing case according to any one of claims 2 to 4, wherein a plurality of the flexible flat harnesses are sandwiched.

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