JP4964511B2 - Harness housing case mounting structure - Google Patents

Description

  The present invention relates to a harness housing case mounting structure that prevents damage to the mounting portion associated with thermal expansion and contraction of a synthetic resin harness housing case mounted on a sliding door of an automobile, for example.

  5 to 7 show an embodiment of a conventional harness housing case mounting structure (see, for example, Patent Document 1).

  As shown in FIG. 5, this harness housing case mounting structure has a stepped bolt 54 (FIG. 7) in which a long hole 53 of each bracket 52 of a harness housing case 51 made of synthetic resin is formed on a metal door inner panel of a sliding door of an automobile. ). A weld nut 56 (FIG. 7) into which the stepped bolt 54 is screwed is provided on the door inner panel 55 (attachment side in FIG. 7).

  The harness housing case 51 includes a base portion 57 and a cover portion 58, and each bracket 52 is provided integrally with the base portion 57. A concave opening 59 is provided in the central portion of the cover portion 58, and a circular reference fixing hole 60 of the base portion 57 is provided in the opening 59. The long holes 53 of the brackets 52 are arranged radially around the reference fixing hole 60. In addition to the bracket 52, a long hole 61 is provided at the front lower portion of the harness housing case 51.

  In a state where a wire harness (not shown) is housed in the harness housing case 51 in a curved shape, the reference fixing hole 60 is fixed to the door inner panel 55 with a stepless bolt, and the length of each bracket 52 and the like is long. The holes 53 and 61 are fixed with a stepped bolt 54.

  The screw-free large-diameter shaft portion 54a of the stepped bolt 54 is located at the center of the long hole 53 as shown in FIGS. When the harness housing case 51 is thermally expanded after the attachment, the long hole 53 slides outward (in the expansion direction of the arrow) with respect to the large-diameter shaft portion 54a of the stepped bolt 54 as shown in FIG. 6B. .

  When the harness housing case 51 is thermally contracted after attachment, the elongated hole 53 slides inward (in the contraction direction of the arrow) with respect to the shaft portion 54a of the stepped bolt 54 as shown in FIG. These prevent damage to the bracket 52 and the like due to stress concentration.

  8 to 9 show other forms of a conventional harness housing case mounting structure (see Patent Document 2).

  The harness housing case mounting structure is made of a synthetic resin harness housing case (only the base portion is shown) 71 and a bracket 72 of a rubber plate via an elastic member 73 made of a rubber plate. It fixes to a volt | bolt (not shown) to a not shown.

  A circular reference fixing hole 75 is provided in the rear bracket 74 of the harness housing case 71, and a long hole 76 is provided in the lower front side of the harness housing case 71. As shown in FIG. 9, the elastic member 73 made of a rubber plate is simultaneously fixed between the peripheral wall 77 of the base portion made of synthetic resin and the bracket 72 at the time of molding the case resin.

  As shown in FIG. 8, the wire harness 78 is led out from the harness lead-out port 79 on the front end side of the harness housing case 71 to the slide door side, and from the long harness lead-out port 80 on the lower end through the crossing space to the vehicle body side ( The power supply side) is arranged so as to be swingable in the horizontal direction (swings when the door is opened and closed), and power is always supplied from the vehicle body to each auxiliary device of the slide door.

In the harness housing case 71, the wire harness 78 is urged upward by a metal leaf spring 81 to prevent the wire harness 78 from drooping when the sliding door is half-opened (slack absorption is performed). The loop-shaped wall portion 82 located below the leaf spring 81 acts as a bending restriction wall for the wire harness 78. In the example of FIG. 5, an annular bending regulating wall is provided outside the recess opening 59.
JP 2001-354085 A (FIG. 4) JP 2003-230222 A (FIGS. 1-2)

  However, in the attachment structure of the harness housing case 51 shown in FIGS. 5 to 7, the stepped bolt 54 that is slidably engaged with the long holes 53 and 61 is used, and the stepped bolt 54 is securely fixed. Therefore, there is a problem that the weld nut 56 is required and the cost is increased, and the weld nut 56 cannot be applied to a portion where the weld nut 56 is not used (not used).

  In addition, in the mounting structure of the harness housing case 71 of FIGS. 8 to 9 described above, the work of fixing the elastic member 73 made of a rubber plate to the harness housing case 71 and the bracket 72 takes time and cost, and the rubber plate There was a concern that the made elastic member 73 is likely to become brittle with time. Moreover, when the expansion / contraction amount of the elastic member 73 is suppressed to be small in order to reduce the change with time, there is a problem that the large harness housing case 71 having a large expansion / contraction amount cannot be handled.

  In view of the above points, the present invention can be applied to a part not using a weld nut, and can be applied to a large harness housing case that is low in cost and has a large amount of expansion and contraction. An object of the present invention is to provide a harness housing case mounting structure capable of reliably exhibiting the absorption function.

In order to achieve the above object, a harness housing case mounting structure according to claim 1 of the present invention is configured such that each bolt is provided in each hole of a plurality of brackets provided on the outer peripheral side of a synthetic resin harness housing case body. In the mounting structure of the harness housing case that is inserted and fixed to the mounting side with the respective bolts with the respective bolts, a corrugated expandable portion is integrally molded between the plurality of brackets and the harness housing case main body, and is resin-molded. At least the stretchable part is separated from the harness housing case body by a slit provided in the harness housing case body on one side or both sides in the width direction , and the plurality of brackets and the stretchable part are the harness housing case body. It is characterized by being arranged radially with respect to the reference fixing hole closer to the center of.

  With the above configuration, when the harness housing case undergoes thermal expansion with the harness housing case attached (fixed) to the mounting side of the slide structure or the like, the corrugated stretchable portion is compressed and the harness housing case is compressed. In the case where the expansion and contraction is absorbed and the harness housing case undergoes thermal contraction, the corrugated stretchable portion is extended to absorb the shrinkage strain of the harness housing case. Accordingly, stress (stress) at the time of expansion and contraction of the harness housing case does not act on the bracket, and damage to the bracket or the like is prevented.

  Since the corrugated extendable portion has a large expansion / contraction stroke, it can cope with a large expansion / contraction amount of a large harness housing case. Further, even if the corrugated expandable portion has a different expansion and contraction amount of the harness housing case on one side and the other side, the corrugated expansion and contraction portion expands and contracts three-dimensionally and smoothly absorbs the expansion and contraction amount. The corrugated stretchable portion is resin-molded at the same time as the harness housing case is resin-molded.

  When the harness housing case is attached to a sliding structure such as a sliding door, the wire harness is laid by the elastic member in the slack absorbing direction in the harness housing case, while being routed to the stationary structure side such as the vehicle body, and the sliding structure A tensile force acts on the wire harness as the body opens and closes, and the harness housing case also receives a tensile force, but the corrugated stretchable portion absorbs this tensile force and reduces the tensile load on the bracket.

In addition, the reference fixing hole in the center or almost the center of the harness housing case is fixed to the mounting side with bolts, and each expansion and contraction part is centered on the fixing reference hole as the harness housing case expands and contracts. By expanding and contracting on the virtual straight line connecting the holes, the expansion and contraction of the harness housing case is smoothly and reliably absorbed.

The harness housing case mounting structure according to claim 2 is the harness housing case mounting structure according to claim 1, wherein the bracket and the extendable portion are provided on a base portion of the harness housing case main body. And

  By the said structure, the base part which supports a wire harness is fixed to an attachment side with a bracket via the expansion-contraction part, and the expansion / contraction of a base part is absorbed by the expansion-contraction part reliably. A cover part is fixed to the base part by, for example, locking means. It is also possible to mold the cover part integrally with the base part.

The harness housing case mounting structure according to claim 3 is the harness housing case mounting structure according to claim 1, wherein the bracket and the extendable portion are provided on a base portion and a cover portion of the harness housing case main body. It is characterized by that.

  With the above configuration, the expansion and contraction of the base portion and the cover portion constituting the harness housing case are independently absorbed by the extendable portions following the brackets of the base portion and the cover portion. The cover portion supports the wire harness together with the base portion in the radial direction from both sides, and also safely protects the wire harness from interference with the outside and entry of dust and the like. The cover part is fixed to the base part by, for example, locking means.

The harness housing case mounting structure according to claim 4 is the harness housing case mounting structure according to claim 3, wherein the bracket and the extendable portion of the base portion and the cover portion are arranged to overlap each other. It is characterized by that.

  With the above configuration, the bracket of the base part and the bracket of the cover part are overlapped with the same bolt in the plate thickness direction and fixed to the mounting side, and the stretchable part following the base part bracket absorbs expansion and contraction of the base part, The stretchable part following the bracket of the cover part absorbs the expansion and contraction of the cover part, and both the stretchable parts can absorb and absorb the expansion and contraction of the base part and the cover part (the cover part is free of backlash). When firmly fixed to the base). By arranging both the stretchable parts in an overlapping manner, the spring force of the stretchable part is higher than in the case of one stretchable part (Claim 3), and it is possible to cope with a strong expansion / contraction force and a large expansion / contraction amount. Become.

  As described above, according to the first aspect of the present invention, since the conventional bracket is not slid onto the stepped bolt, the corrugated expandable portion absorbs the expansion and contraction of the harness housing case. This eliminates the need for a stepped bolt and a weld nut that securely fixes the stepped bolt to the mounting side, thereby reducing the cost and attaching it to a part that does not use a weld nut, thereby expanding the application range. Further, since the corrugated stretchable part can be formed simultaneously with the resin molding of the harness housing case, it is easier to manufacture and costs less than the conventional rubber elastic member, and the corrugated stretchable part Since the amount of expansion / contraction is large, it can be applied to a large harness housing case, and furthermore, the function of expanding and contracting the harness housing case can be reliably exerted over a long period of time by the stretchable portion made of synthetic resin. As a result, the reliability of constant power supply using the harness housing case is increased.

In addition, each stretchable part following each bracket reliably absorbs the expansion and contraction of the harness housing case with a large displacement centered on the reference fixing hole, further reducing the stress on each bracket and making each bracket weaker (Fatigue) and breakage are more reliably prevented.

According to invention of Claim 2, the base part which supports a wire harness is fixed to an attachment side with a bracket via a corrugated expansion-contraction part, and the expansion-contraction part of a base part is made to absorb reliably by an expansion-contraction part. The influence of the expansion and contraction of the harness housing case can be substantially eliminated at a low cost with a small number of brackets and the extendable part.

According to the third aspect of the present invention, for example, the expansion / contraction rate of the base portion and the cover portion is absorbed by each of the expandable / contractible portions independently of the expansion / contraction of the base portion and the cover portion of the harness housing case. Even when they are different, the expansion and contraction can be surely absorbed, and the stress on the bracket can be surely eliminated.

According to the invention described in claim 4, even when the expansion and contraction of the harness housing case is performed with a strong force and a large amount of distortion because the amount of the base portion and the cover portion that are stretchable is arranged in an overlapping manner. Expansion and contraction can be absorbed reliably, and can be applied to the attachment of a large harness housing case.

  FIG. 1 shows an embodiment of a harness housing case mounting structure according to the present invention.

The harness housing case 1 has a mounting structure in which brackets 5 (5 _{1 to} 5 ₃ ) each having a fixing hole portion 4 are integrally formed on the outer peripheral portion of a synthetic resin case body 2 via a corrugated expandable portion 3. It is characterized in that it is provided. The case body 2, the extendable / contractible portion 3, and the bracket 5 are integrally molded with the same synthetic resin material.

  In this example, the brackets 5 are arranged at a total of three locations on the front side, intermediate side, and rear side of the curved peripheral wall 6 on the upper side of the case body 2. A circular reference fixing hole 7 is provided substantially at the center of the case body 2, and the brackets 5 are arranged radially about the reference fixing hole 7.

  That is, the imaginary lines connecting the circular hole 4 of each bracket 5, the corrugated stretchable part 3, and the reference fixing hole 7 are each a straight line. Each corrugation of the extendable part 3, that is, a peak part and a valley part are positioned orthogonal to this imaginary line. Each extendable portion 3 faces the reference fixing hole 7.

In the example of FIG. 1, the reference fixing hole 7 is provided in the base portion 11 of the harness housing case 1 as in the conventional case (FIG. 5), and each bracket 5 and the extendable / contractible portion 3 are provided in the base portion 11. In FIG. 1, a part of the cover part 12 is cut away to show an extendable part. The base body 11 is composed of the base portion 11 and the cover portion 12.

  The bracket 5 and the extendable / contractable portion 3 are formed with the same width. The circular hole 4 is formed in the center of the bracket 5 in the width direction. The bracket 5 is referred to as a bracket body, and it can be seen that the bracket is constituted by the bracket body and the extendable / contractible portion 3. Moreover, it is also possible to view the attachment structure of the harness housing case 1 as the harness housing case 1 itself. The harness housing case 1 may be referred to as a protector.

1, the bracket 5 ₁ on the rear side inclined slightly downwardly from the horizontal, one side of the bracket 5 ₁ and stretchable portion 3 close to the case body 2 through the slit ₈₁ of the lower, expandable portion 3 is subsequently integrated with the case body 2 to the bracket longitudinally through the flat base portion 9 ₁ in the same width as the bracket 5 _1.

Inclined slightly upward from the horizontal at an intermediate side of the bracket 5 ₂ rear bracket 5 ₁ in the same direction, the extendable portion 3 case body through a flat short base portion 9 ₂ at the same width as the bracket 5 ₂ 2 Following integrally, the bracket 5 ₂ and one side of the stretchable portion 3 and the base portion 9 ₂ is close to the case body 2 through the slit ₈₂ of the lower, the other side of the base portion 9 ₂ It is close to the case body 2 through the upper short slits 8 _3.

The front side of the bracket ₃ located diagonally upward, stretchable section 3 continues integrally with the case main body 2 via the flat short base portion 9 ₃ the same width as the bracket _3, stretchable portion 3 and the base portion 9 both sides of the ₃ is close to the case body 2 through the slits 8 _4. It can also be seen that the bracket is composed of the bracket body (5), the extendable / contractible portion 3 and the base portion 9.

  In this example, a circular hole 10 is provided in the front lower portion of the case body 2. The case body 2 is fastened with bolts (not shown) to the inner panel (mounting side not shown) of the sliding door (sliding structure) of the automobile at two locations, the central reference fixing hole 7 and the lower lower hole 10. Each bracket 5 is fastened and fixed to the inner panel with bolts via the corrugated extendable portion 3.

  Each bolt is an inexpensive bolt without a step. The female screw portion on the inner panel side to which the bolt is screwed does not have to be a weld nut. For example, a tapping screw directly formed on the inner panel, a normal nut that is not welded, or the like can be used. This is because it is not necessary to slide the long hole as in the conventional stepped bolt, and it is not necessary to slide (move), so it is not necessary to firmly fix the bolt with a weld nut.

  When the case main body 2 becomes hot and expands after the harness housing case 1 is attached, each expansion / contraction portion 3 of the corrugation is compressed toward the hole 4 of the bracket 5 so that the thermal expansion is reliably absorbed, When the case main body 2 becomes low temperature and contracts, each of the corrugated expandable / contractible portions 3 extends in the direction opposite to the hole 4 so that the thermal contraction is reliably absorbed.

At this time, since the expansion and contraction rate by material of the harness accommodating case 1 is sometimes not uniform, for example, as shown in FIG. 2, the case main body 2 is largely expanded in the long slit ₈₂ side, a short slit 8 ₃ side even when small inflatable, expandable portion 3 is greatly compressed in the long slit ₈₂ side, and so be compressed smaller with short slit 8 ₃ side, the expandable part 3 of the thermal distortion wave three-dimensionally absorption Thus, the stress on the bracket 5, the bolt, and the mating female screw portion (nut portion) is reliably reduced.

  The harness housing case 1 (case body 2) is composed of a synthetic resin base portion 11 and a cover portion 12, and the stretchable portion 3 is provided on both the base portion 11 and the cover portion 12. Alternatively (see the example of FIG. 3), it may be provided only on the base 11 (see the example of FIG. 4). Although FIG. 1 and FIG. 3 and FIG. 4 are slightly different in detail, the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  In the example of FIG. 3, the corrugated stretchable portion 3 of the base portion 11 and the corrugated stretchable portion 3 of the cover portion 12 are formed symmetrically. That is, the base portion 9 is formed on the same surface from the vertical substrate portion 13 of the base portion 11, and the corrugated peaks 3 a protrude from the base portion 9 toward the vehicle outer side (door inner panel side). A base portion 9 ′ is formed perpendicular to the peripheral wall 6 of the portion 12, and the corrugated peak portions 3 a ′ protrude from the base portion 9 ′ toward the passenger compartment side, and the peak portions 3 a of the base portion 11 and the cover portion 12 is the same number (four in this example) as each peak 3a ′, and is symmetrically positioned with respect to the contact surface 9a between the base portion 9 of the base portion 11 and the base portion 9 ′ of the cover portion 12. Yes.

  The troughs 3b between the crests 3a of the base part 11 and the troughs 3b 'between the crests 3a' of the cover part 12 are mutually on the same plane as the contact surface 9a of the bases 9 and 9 '. It is located in contact with. The crests 3a and 3a ′ of the corrugations of the base part 11 and the cover part 12 follow the brackets 5 and 5 ′, respectively, and the brackets 5 and 5 ′ are located on the same plane as the base parts 9 and 9 ′. They are in contact with each other. The apex portions of the peak portions 3a and 3a 'and the bottom point portions of the valley portions 3b and 3b' are formed in a smooth arc shape (substantially semicircular shape).

  Both the extendable parts 3 and 3 ′ are overlapped with each other with the brackets 5 and 5 ′, and are radially arranged with respect to the reference fixing hole 7 at the center or almost the center (center of gravity) of the harness housing case 1 of FIG. 1. Needless to say.

  A peripheral wall 14 is formed so as to protrude perpendicularly to the substrate portion 13 of the base portion 11, and the peripheral wall 14 is in contact with the inner surface of the peripheral wall 6 of the cover portion 12. Substrate portions 13 and 15 of the base portion 11 and the cover portion 12 are positioned to face each other, and a harness housing space 16 is formed between the substrate portions 13 and 15. The base portion 11 and the cover portion 12 are locked to each other by a locking means (not shown) such as a locking frame piece and a locking projection. Since the case body 2 and its internal structure excluding the corrugated extendable parts 3 and 3 'are the same as those in the prior art, the description is omitted.

  FIG. 3A shows a normal neutral state (non-expanded state) of each of the extendable parts 3 and 3 ′ of the base part 11 and the cover part 12, and FIG. 3B shows the harness housing case 1 as a door. After fixing to the inner panel (not shown), the case body 2 expands, and the extendable parts 3, 3 ′ of the base part 11 and the cover part 12 become the holes 4 of the brackets 5, 5 ′ (FIG. 1). FIG. 3 (c) shows a state in which the case main body 2 is contracted, and the extendable parts 3 and 3 ′ of the base part 11 and the cover part 12 are expanded. The state which extended in the contraction direction like the arrow using the bolt in the hole part 4 (FIG. 1) of bracket 5,5 'as a fulcrum is each shown.

  The compression of the extendable parts 3 and 3 ′ in FIG. 3B is a modification in which the ridges 3a and 3a ′ of the waveform are deformed in a direction approaching each other in the arrangement direction, and the extension and contraction in FIG. The expansion of the portions 3 and 3 ′ is obtained by deforming the crest portions 3a and 3a ′ of the waveform in a direction away from each other in the arrangement direction.

  The compression operation shown in FIG. 3B and the extension operation shown in FIG. 3C are performed while the extendable portion 3 of the base portion 11 and the extendable portion 3 ′ of the cover portion 12 are simultaneously displaced by the same length. . Since the stretchable force (elastic force) is increased by the two stretchable portions 3 and 3 '(for example, the stretchable force is doubled compared to the case where only the stretchable portion 3 on the base side in FIG. 4 is used), the harness is accommodated. The case 1 can cope with a large expansion and contraction, and the harness housing case 1 can be used in a place where the thermal influence (difference in temperature) is large.

  Further, by using both the bracket 5 of the base portion 11 and the bracket 5 ′ of the cover portion 12 in the thickness direction, the fixing force is increased, and the harness housing case 1 is firmly and firmly attached to the door inner panel. Can be fixed.

  In the example of FIG. 4, the root portion 9 is formed on the same surface from the vertical substrate portion 13 of the base portion 11 of the harness housing case 1, and the corrugated stretchable portion 3 is formed between the root portion 9 and the bracket 5. Each peak part 3a is protruded toward the door inner panel side. The bottom points of the valleys 3 b between the peaks 3 a are located on the same plane as the root 9 and the bracket 5.

  The front end 6 a of the peripheral wall 6 of the cover portion 12 is located with a slight gap between it and the base portion 9 of the base portion 11. In addition, since the configuration of the case body 2 other than the extendable / contractable portion 3 is the same as the example of FIG.

  4 (a) shows a neutral position of the extendable / retractable portion 3 of the base portion 11 (in a non-expanded state), and FIG. 4 (b) shows the case main body 2 (after the harness housing case 1 is fixed to the door inner panel. FIG. 4 (c) shows a state in which the base portion 11) expands and the expandable / contractable portion 3 of the base portion 11 is compressed in the expansion direction as indicated by an arrow with the bolt in the hole 4 (FIG. 1) of the bracket 5 as a fulcrum. Similarly, the case main body 2 (base part 11) contracts and the extendable part 3 of the base part 11 extends in the contracting direction as indicated by the arrow with the bolt in the hole 4 of the bracket 5 as a fulcrum. Yes.

  The compression operation of the expandable / contractible portion 3 in FIG. 4B is performed by deforming the ridges 3a of the corrugations so as to approach each other in the arrangement direction, and the expandable portion 3 in FIG. The operation is performed by deforming the ridges 3a of the waveform in directions away from each other in the arrangement direction.

  Usually, since a metal leaf spring (not shown) or a wire harness that urges a wire harness (not shown) is attached to the base portion 11, it is necessary to fix the base portion 11 to the door inner panel. The cover portion 12 simply protects the leaf spring and the wire harness in the base portion 11 from the outside and holds the wire harness between the base portion 11 and the cover portion 12 is fixed to the door inner panel. Even if not, there is no problem in actual use as long as the base portion 11 is locked. If a leaf spring or a wire harness is attached to the cover part 12, at least the cover part 12 is fixed to the door inner panel. The shape of the leaf spring can be appropriately set such as a spiral shape.

  In the example of FIG. 4, the fixing force of the harness housing case 1 to the door inner panel is lower than that of the example of FIG. 3, but the weight and cost are reduced because the cover portion 12 has no bracket or extendable portion. ing.

  In the example of FIG. 4, the protruding direction of each peak 3 a of the extendable part 3 does not necessarily have to be on the door inner panel side, and the protruding (height) direction intermediate position between each peak 3 a and the valley 3 b. Can be positioned on the same plane as the root portion 9 and the bracket 5. Alternatively, in FIG. 4, the valley portion 3 b can be protruded more toward the vehicle compartment side than the bracket 5 and the base portion 9, and the mountain portion 3 a can be positioned on the same plane as the bracket 5 and the base portion 9.

  3 and 4, the shapes of the crests 3a and 3a 'and the troughs 3b and 3b' of the corrugated stretchable part 3 are not cross-sectional arcs, but cross-sectional triangles (exactly triangular). Two sides), a trapezoidal cross section, a rectangular cross section, or the like. These can also be said to be wavy stretchable parts.

  In each of the above embodiments, each bracket 5 and the expandable / contractable portion 3 following the bracket 5 are arranged radially around the reference fixing hole 7 (FIG. 1). However, as shown in FIG. 3 exhibits an absorbing function of expansion and contraction even if the amount of deflection differs between one side and the other side, so that each bracket 5 and the expandable / contractable part 3 are not positioned radially with respect to the reference fixing hole 7. Even when they are displaced, the absorption function can be effectively exhibited.

  It is also possible to arrange the harness housing case 1 not horizontally on the door inner panel but horizontally on the vehicle body (fixed structure not shown) (see the example of FIG. 16 of Patent Document 1). In the case where the harness housing case 1 is arranged horizontally rather than vertically in the slide door, it cannot be handled unless the thickness of the slide door is considerable.

  In each of the above examples, the harness housing case 1 is applied to the power supply of the slide door, and the wire harness is biased in the slack (extra length) absorption direction by an elastic member such as a leaf spring (harness housing). The action of the case, the wire harness inside it, and the leaf spring which is an elastic member is the same as in the conventional example of FIG. 8). In addition to the sliding door, it can also be used to supply power to the rotating back door, front door, slide seat, etc. When applying, the shape of the harness housing case 1 is not a curved shape (substantially semicircular) but a rectangular shape, and the base portion 11 or the base portion 11 of the harness housing case 1 and the cover portion 12 have the same waveform as described above. It is also possible to fix to a door, a vehicle body, etc. via the extendable parts 3 and 3 ′.

  In this case, the internal structure (extra length absorption structure) of the harness housing case 1 uses a straight coil spring (not shown) instead of the leaf spring, or bends the wire harness into a substantially U shape instead of a curved shape. Alternatively, an existing structure using a slider (not shown) that holds the wire harness, a guide rail that guides the slider, or the like (not shown) can be applied. Moreover, it is also possible to use a harness housing case 1 in which a base portion 11 and a cover portion 12 are integrally molded with resin.

  Moreover, in the example of FIG. 3, the extendable part 3 of the base part 11 and the extendable part 3 'of the cover part 12 are not overlapped and arranged, but the extendable parts 3 and 3' are made independent. It is also possible to arrange the main body 2 at another position in the circumferential direction. In this case, it is impossible to increase the elastic force by combining the two extendable parts 3 and 3 ′ as in the example of FIG. 3, but the base part 11 and the cover part 12 are independently fixed to the door inner panel or the like. can do.

It is a front view which shows one Embodiment of the attachment structure of the harness accommodating case which concerns on this invention (the inside of a frame is an enlarged view of the fixing | fixed part which is a principal part). It is a front view which similarly shows one form of an effect | action of the fixing | fixed part of a harness accommodating case. 1 shows one embodiment of a stretchable part of a fixed part, (a) is a cross-sectional view during normal time, (b) is a cross-sectional view when the case is expanded, and (c) is a cross-sectional view when the case is contracted. The other form of the expansion-contraction part of a fixing | fixed part is shown, (a) is sectional drawing at the time of normal, (b) is sectional drawing at the time of case expansion, (c) is sectional drawing at the time of case contraction. It is a front view which shows one form of the attachment structure of the conventional harness storage case. Similarly, the operation of the fixing part of the harness housing case is shown, (a) is a front view at normal time, (b) is a front view at the time of case expansion, and (c) is a front view at the time of case contraction. Similarly, it is a cross-sectional view of the fixing portion in a normal state. It is a front view which shows the other form of the attachment structure of the conventional harness storage case. It is sectional drawing which similarly shows the fixing | fixed part of a harness storage case.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Harness accommodating case 3, 3 'Extendable part 5, 5' Bracket 7 Reference fixing hole 11 Base part 12 Cover part

Claims (4)

In the mounting structure of the harness housing case in which each bolt is inserted into each hole portion of the plurality of brackets provided on the outer peripheral side of the harness housing case body made of synthetic resin, and the plurality of brackets are fixed with each bolt on the mounting side.
A wavy stretchable portion is integrally molded between the plurality of brackets and the harness housing case body, and at least the stretchable portion is provided on the one or both sides in the width direction with a slit provided in the harness housing case body. The harness housing case is separated from the harness housing case main body , and the plurality of brackets and the extendable portion are radially arranged with respect to a reference fixing hole closer to the center of the harness housing case main body . Mounting structure. 2. The harness housing case mounting structure according to claim 1, wherein the bracket and the extendable portion are provided on a base portion of the harness housing case main body . 2. The harness housing case mounting structure according to claim 1, wherein the bracket and the extendable portion are provided on a base portion and a cover portion of the harness housing case main body .   4. The harness housing case mounting structure according to claim 3, wherein the brackets and the extendable parts of the base part and the cover part are arranged to overlap each other.

Images