JP4139401B2 - Guide member for harness - Google Patents

Description

  The present invention relates to a guide member for a wire harness disposed between a slide door and a vehicle body used in an automobile such as a one-box car.

  Many one-box cars and RV cars are equipped with a sliding door that opens and closes so as to slide along the vehicle body. When such a sliding door is an automatic door, or when an acoustic device such as a speaker or an electrical equipment is installed in the slide door, a wire harness for supplying power to these electrical components is wired.

  Conventionally, as an example of wiring of a wire harness for supplying power to a slide door of an automobile having such a slide door, each device of the slide door is connected to the wire harness via a controller, and the terminal of the wire harness is connected to the front end of the door. Is connected to one of the contacts. The other contact is provided on the vehicle body side, and the contact is connected to the battery via a wire harness. The contact on the vehicle body side is connected to the contact on the slide door side through a movable contact (not shown) for dustproofing and waterproofing.

  However, in the case of the above structure, power is supplied only when the slide door is closed, and there is a drawback that the power window cannot be opened and closed and a device such as a speaker cannot be operated when the door is opened even a little.

  Another example of eliminating such a defect is shown in FIG. In FIG. 5, 1 is a vehicle body and 2 is a slide door. The sliding door 2 opens and closes the entrance / exit by sliding in the front-rear direction via a pull-in rail recessed in the entrance / exit of the vehicle body 1 and a rail provided on the vehicle body side wall behind the door.

  Between the vehicle body 1 and the door 2, wiring is performed so as to hang a wire harness 23 having an extra length on the slide portion in the door 2, and both ends of the wire harness 23 are connected to the vehicle body and the slide door via connectors. The wire harness is housed in a state having a curved portion in the longitudinal direction in the slide portion, and the side attached to the slide door reciprocates while being curved as the slide door is opened and closed. ing.

  In this way, by laying the wire harness between the vehicle body and the door, it is possible to supply electricity, audio signals, and the like to the device even when the door is open, which greatly improves convenience.

  However, it is necessary to prevent the wire harness from slackening and coming into contact with the vehicle body or the sliding door, but as a means for this, the wire harness is fixed and moved using a metal band curved in the width direction as a steel measure. Was regulated.

  However, by using the metal band curved in the width direction as described above as a guide member, it is possible to prevent the harness from hanging down, and satisfying the function of protecting the harness from abrasion and pinching due to rubbing Although it can be made of metal, for example, if the ambient temperature rises while the car is parked or stopped, the heat conductivity is high, so that the heat is transferred to the harness, which has an adverse effect. A problem occurs.

  In addition, since the material is repeatedly bent every time the sliding door is opened and closed, there is a problem that the material is fatigued and cut or broken when it is made of metal.

  Therefore, in the present invention, the harness is a member that guides the harness that spans between the vehicle body and the sliding door from the rubbing and pinching with the vehicle body and the door, and it is difficult to transmit the surrounding heat to the harness, and the harness is protected from heat. Another object of the present invention is to provide a harness guide member that is resistant to repeated bending due to opening and closing of the door.

In order to achieve the above-described object, in the first aspect of the present invention, when the vehicle body and the slide door are connected to supply power between the slide doors from the vehicle body side, the slack is made to move with the opening / closing operation of the slide door. a harness guide member for guiding the harness to be used in the presence of, by integrally laminating a fabric with a fabric-sided elastomer,該帆fabric belt member which is curved in the width direction to the outside Yes, the harness is fixed and attached to the inner surface curved along the longitudinal direction of the belt material, and a high-strength and low-stretch core wire is embedded in the elastomer in a spiral shape and reinforced. .

In the second aspect of the present invention, when the vehicle body and the slide door are connected to supply power between the slide doors from the vehicle body side, the harness used in a slack state is guided so that the vehicle can move together with the opening / closing operation of the slide door. a harness guide member, by integrally laminating a fabric with a fabric-sided elastomer, a is curved in the width direction by the該帆fabric outer belt material belt material, said belt material longitudinally A belt material constituting the belt material along the harness, a harness is embedded in the side near the canvas, and a high strength and low elongation core wire is embedded in the elastomer in a spiral shape to be reinforced. Features.

In the present invention 1, (a) Since an elastomer is used as the material of the guide member, heat conductivity is low and it is difficult to transfer heat to the harness even if the environmental temperature rises, so generation of noise due to heat or the harness is configured. Adverse effects such as softening of members can be prevented. (B) Also, it can function over a longer period of time than when a metal band is used as a guide member against repeated bending due to opening and closing of the door. (C) Further, since the canvas is laminated, the harness can be protected without being easily worn even if it is rubbed against the sliding door or the vehicle body. (D) Further, by embedding the core wire in the elastomer, the function of holding the shape as a guide member is enhanced, so that the harness can be securely held at a predetermined position and contact the vehicle body or the slide door. Such a problem can be prevented.

In the present invention 2, in addition to the effects (a) to (d) of the present invention 1 , the harness is embedded in the elastomer in advance, and the problem that the harness directly contacts the vehicle body or the sliding door is completely eliminated. Can be prevented. Also, the ones more reliably even with respect to the function of protecting the surrounding heat.

  FIG. 1 is a perspective view of an automobile with a sliding door attached thereto, FIG. 2 is a sectional view of the sliding door, FIG. 3 is a perspective view when the sliding door is opened, and FIG. Schematic diagram showing the state of the harness when the sliding door is closed, FIG. 5 is a schematic diagram of the state of FIG. 4 seen from the side, and FIG. 6 is the state of the harness when the sliding door is open. FIG. 7 is a schematic diagram showing the state of FIG. 6 as viewed from the side, and FIG. 8 is a perspective view of the harness attached to the harness guide member.

  The slide door to which the harness guide member of the present invention is applied is as follows. In FIG. 1, the slide door 1 includes an upper rail 4, a lower rail 5, and a center rail 6 arranged at the upper and lower edges of the opening 3 formed in the vehicle body 2 and the vertical center of the rear side wall of the vehicle body 2. An upper roller, a lower roller, and a center roller respectively disposed at the upper part, the lower part of the front end, and the center of the rear end are engaged and guided so that the slide 1 slides along the vehicle body 2.

  The front ends of the rails 4, 5, 6 are curved inward of the vehicle body, and the slide door 1 swings outward after swinging out of the vehicle body when opening, and slides forward when closing. It is pulled inward of the vehicle body near the closed position.

  The lower roller is configured such that a traveling roller 11 is pivotally supported on a horizontal shaft 10 provided between left and right vertical shafts 9 provided on a roller support member 8. The roller support member 8 is pivotally attached to the support arm 12 so as to be rotatable about a vertical shaft 13. The support arm 12 is attached to an L-shaped bracket 14 fixed to the slide door 1. The upper roller is constituted by a horizontal roller 16 pivotally supported by the support arm 15. Similarly to the lower roller, the center roller (not shown) is configured by attaching two horizontal rollers and one traveling roller to a roller support member. The roller support member pivots on a support arm. It is worn.

  In the sliding door configured as described above, the sliding door 1 itself is an automatic door, or an acoustic device such as a power window or a speaker is attached to the sliding door. Etc. need to be supplied to the sliding door 1.

  A harness 21 from the battery is wired between the vehicle body 2 and the slide door 1, and a harness 22 to an audio device such as a power window or a speaker is wired to the slide door 1. The sliding portion of the sliding door 2 is wired with the harness 23 having an extra length, and one end of the harness 23 is connected to the harness 21 via the connector A, and the other end is connected to the connector. It is connected to the harness 22 via B. By being connected in this way, electricity and audio signals are sent from the vehicle body 2 side to the slide door 1 side.

  When the sliding door is closed, as shown in FIGS. 4 and 5, the harness 21 arranged between the vehicle body and the sliding door is located at the rear end when viewed from the sliding door 1, while the sliding door 2 side The connector B on the harness 22 side is located in front of the connector A on the harness 21 side, and the harness 23 therebetween is curved in a U shape. When the slide door 1 is opened from this closed state, the connector A moves forward from the rear end of the slide door 2 relative to the connector B as shown in FIGS.

  When the sliding door 2 performs such an opening / closing operation, the harness 23 is bent in a U shape, the end portion on the connector A side is fixed, the end portion on the connector B side is moved, and the portion bent in the U shape Will change position within the harness 23. In this way, the harness 23 repeats bending and stretching as the slide door 1 is opened and closed.

  The harness 23 is attached to the harness guide member 30 of the present invention as shown in FIG. The harness guide member 30 of the present invention is a belt-like member curved in the width direction by laminating a canvas 32 on an elastomer 31, and the harness 23 is fixed and used on the curved inner side. By using such a harness guide member 30, the harness 23 wired with a surplus length does not hang down and is cut or worn by contacting the vehicle body 2 or the door 1 when the sliding door 1 is opened or closed. This can be prevented.

  Conventionally, a metal band has been used as such a guide member. However, by using a material in which a canvas 32 is laminated on an elastomer 31 as in the present invention, it is repeatedly bent when the slide door 1 is opened and closed. Even then, it can be used without fatigue for a long time. Moreover, since it is an elastomer material, its thermal conductivity is lower than that of metal, and even if the surroundings become high temperature, the adverse effect on the harness 23 due to the high temperature can be blocked without transferring heat to the harness 23. .

  The harness guide member 30 is formed by integrally laminating a canvas 32 with an elastomer 31. The elastomer 31 is not particularly limited, but includes hydrogenated nitrile rubber (HNBR), nitrile rubber (NBR), Natural rubber (NR), styrene / butadiene rubber (SBR), chloroprene rubber (CR), ethylene / propylene / diene / monomer rubber (EPDM), millable urethane, urethane and the like can be used. The inside of an automobile has a large temperature change, and the low temperature side may reach from 20-30 ° C below the freezing point to 70-80 ° C on the high temperature side. Among these elastomers, hydrogenated nitrile rubber (HNBR) or ethylene butadiene diene -It is preferable to use monomer rubber (EPDM).

  Further, as the canvas 32 laminated integrally with the elastomer 31, for example, a plain weave made of natural fibers such as cotton and hemp or organic chemical fibers such as polyamide, polyester and polyethylene, a twill weave, a satin weave, and the like. However, it is most preferable to use polyamide fibers because they are excellent in both wear resistance and flexibility. By using a woven fabric instead of a knitted fabric or a non-woven fabric, the elongation is small. Therefore, a difference in shrinkage from the elastomer works, and a warp for bending the harness guide member 30 can be generated.

  The harness guide member 30 as described above has a thickness of about 1 to 3 mm. If it is less than 1 mm, the strength is insufficient, and cutting or wear occurs at an early stage, and if it exceeds 3 mm, the rigidity becomes too high and the flexibility is impaired.

  As shown in FIG. 9, the harness guide member 30 in the present invention has a core wire 33 made of a rope embedded in an elastomer 31. By embedding the core wire 33, it can be reinforced and problems such as an early life due to cutting due to bending can be prevented.

  The cord 33 can be a rope made of natural fibers such as cotton and hemp, inorganic fibers such as metal fibers and glass fibers, or organic chemical fibers such as polyamide, polyester and polyethylene.

  The harness guide member 30 of the present invention can be manufactured, for example, by the following method. An unvulcanized elastomer 31 sheet is wound around a cylindrical mold, a rope to be a core wire 33 subjected to adhesion treatment is wound in a spiral shape, and then a canvas 32 subjected to adhesion treatment is wound from above. . Further, a jacket is put on from above and vulcanized in a vulcanizing can at 160 to 175 ° C. and 0.6 to 0.85 MPa. When it is taken out from the vulcanizing can and removed from the mold, a sleeve in which canvas is laminated and integrated on one side is obtained. If necessary, it is cut into an appropriate width to form an endless belt. Then, an open-end band can be obtained by cutting one place in the longitudinal direction.

  Thus, by integrating the canvas 32 on one side, a belt-shaped harness guide member 30 that is curved in the width direction with the elastomer 31 side as an inner side can be manufactured due to the difference in contraction rate between the two. When manufacturing the thing without the core wire 33, it can manufacture by omitting the process of winding the rope used as the core wire 33 from the said process.

  FIG. 10 is a cross-sectional view corresponding to FIG. 9, showing another example. In this example, the harness 34 itself is embedded in the elastomer 31 forming the harness guide member 30. By embedding the harness 34 in the elastomer 31, the harness 34 can be completely cut off from the outside by the elastomer 31. There will be no contact at all. In addition, the effect of blocking the ambient environmental temperature can be increased.

  Manufacture of the harness guide member 30 in which the harness 34 is embedded in the elastomer 31 can be made in substantially the same procedure as that for manufacturing the guide member as shown in FIG.

  An unvulcanized elastomer 31 sheet is wound around a cylindrical mold, a rope to be a core wire 33 subjected to an adhesive treatment is wound in a spiral shape, and then a necessary number of conductor wires to be a harness 34 are wound and bonded. The treated canvas 32 is wound from above. Further, a jacket is put on from above and vulcanized in a vulcanizing can at 160 to 175 ° C. and 0.6 to 0.85 MPa. When the mold is taken out from the vulcanization can and removed from the mold, a sleeve in which the canvas 32 is laminated and integrated on one side is obtained. If necessary, it is cut into an appropriate width to form an endless belt. Then, an open-end band can be obtained by cutting one place in the longitudinal direction.

  The harness guide member 30 according to the present invention is curved by integrally laminating the elastomer 31 and the canvas 32. However, as shown in FIG. 11, the harness guide member 30 has a curved shape made of a material having rigidity such as metal or resin. It is also possible to use a method in which the clamp 35 is attached to the end portion and forcedly bent.

It is the perspective view of the place which open | released the sliding door of the motor vehicle with which the sliding door was attached. FIG. 2 is a cross-sectional view of a sliding door portion in FIG. It is a schematic perspective view which shows the mode of the harness when the sliding door is open | released. It is the schematic which looked at the mode of the harness when the sliding door is obstruct | occluded from the top. It is the schematic which looked at the mode of the harness when the sliding door is obstruct | occluded from the side surface. It is the schematic which looked at the state of the harness when the sliding door is open from the top. It is the schematic which looked at the mode of the harness when the sliding door is open from the side. It is a perspective view of the place where the harness was attached to the guide member for harness. It is sectional drawing of the guide member for harness which embed | buried the core wire. It is sectional drawing of the guide member for harness which embedded the harness with the core wire. It is a side view of the guide member for harnesses which attached the belt clamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door 2 Car body 3 Opening 4 Upper rail 5 Lower rail 6 Center rail 8 Roller support member 9 Vertical shaft 10 Horizontal shaft 11 Traveling roller 12 Support arm 13 Vertical shaft 14 Bracket 15 Support arm 16 Horizontal roller 21 Harness 22 Harness 23 Harness 30 For harness Guide member 31 Elastomer 32 Canvas 33 Core wire 34 Harness 35 Clamp

Claims (2)

A harness guide member that guides a harness that is used in a slack state so that it can move with the opening and closing operation of the slide door when connecting the vehicle body and the slide door to supply power between the slide doors from the vehicle body side. there, by integrally laminating a fabric with a fabric-sided elastomer, a belt member which is curved in the width direction by the該帆cloth outward, an inner surface which is curved along the longitudinal direction of the belt member A harness guide member, wherein a harness is fixed and used, and a high-strength and low-stretch core wire is embedded in the elastomer in a spiral shape and reinforced. A harness guide member that guides a harness that is used in a slack state so that it can move with the opening and closing operation of the slide door when connecting the vehicle body and the slide door to supply power between the slide doors from the vehicle body side. there, by integrally laminating a fabric with a fabric-sided elastomer, a belt member which is curved in the width direction by the該帆fabric outward to form a belt material along the belt member longitudinally A harness guide member characterized in that a harness is embedded in an elastomer and used on the side close to the canvas, and a high-strength, low-elongation core wire is embedded in the elastomer in a spiral shape and reinforced.

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