JP5356958B2 - Protector structure for arm feeding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a protector base compact in a height direction in a structure for turning an arm holding a fixed wire harness along the protector base. <P>SOLUTION: The protector structure includes a protector 3 consisting of an outer protector base 1 vertically fixed on a sliding door and an inner protector cover 2, an arm 29 turnably pivotally supported in the protector, and a harness fixing part 7 provided on the turning front end side of the arm. In this structure, the width of a root of the rear is defined so that a force in the protector base acts on the arm when the sliding door is closed frontward and the turning front end 6 of the arm can contact the root 4a on the rear of the protector base, and the lower root 4b of the protector base is formed to be short so that a force in the protector cover acts on the arm when the sliding door is opened backward and the turning front end side of the arm is exposed downward from the protector base. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a protector structure for arm feeding that feeds power by rotating an arm in a protector together with a wire harness in accordance with opening and closing of a sliding door of an automobile, for example.

  FIG. 4 shows one form of a conventional arm feeding protector structure.

  In this structure, a main arm 62 is rotatably provided on a protector base 61 made of synthetic resin, a sub arm 63 is rotatably provided on the main arm 62, and a wire harness (not shown) is fixed to the sub arm 63. Corresponding to the operation of the wire harness, the arms 62 and 63 are rotated back and forth along the protector base 61.

  The main arm 62 is biased upward by a torsion spring (not shown) to absorb the slack of the wire harness. The protector base 61 is provided with a protector cover (not shown) made of synthetic resin, and the protector base 61 and the protector cover constitute a protector. The protector is screwed and fixed to a slide door panel (not shown) of an automobile by inserting bolts (not shown) through holes in important places.

  As shown in FIG. 4, the arms 62 and 63 rotate forward (in the direction of arrow C) when the slide door is opened, and the arms 62 and 63 rotate backward (in the direction of arrow D) when the slide door is closed. The wire harness swings back and forth along the lower opening of the protector. One of the wire harnesses is led out from the sub arm 63 through the main arm 62 into the slide door from the front end side of the protector, and the other wire harness is routed from the sub arm 63 to the vehicle body side.

  As a protector structure (not shown) for arm feeding other than the above, for example, in Patent Document 1, a link arm along a substantially rectangular protector base and a sub arm that is rotatably provided on the distal end side of the link arm are provided. The wire harness corrugated tube is fixed to the harness holder, and the electric wire portion of the wire harness led out from the corrugated tube is bent into a substantially S shape through the back side of the link arm from the front end of the protector. It is described that the link arm is led out and biased upward by a torsion spring.

JP 2009-65814 A (FIG. 1)

  However, in the above-described conventional arm power supply protector structure, the protector base 61 is placed along the protector base 61 in the entire range of the rotation trajectory because the assembly (arm) of the main arm 62 and the sub arm 63 is aligned with the protector base 61. There was a problem that the base 61 was enlarged in the height direction.

  In view of the above, the present invention provides a protector structure for arm feeding that can reduce the height of the protector base in the height direction in a structure in which the arm to which the wire harness is fixed is rotated along the protector base. For the purpose.

  In order to achieve the above object, a protector structure for feeding an arm according to claim 1 of the present invention includes a protector comprising an outer protector base and an inner protector cover that are fixed vertically to a sliding door, and the protector. An arm that is pivotally supported inside, and a harness fixing portion provided on the pivoting tip side of the arm, and when the sliding door is closed forward, the arm is moved in the direction of the protector base. When the force is applied, the width of the rear hem is defined so that the pivot front end portion of the arm contacts the rear skirt of the protector base, and the sliding door is opened rearward. At this time, a force in the protector cover direction is applied to the arm, and the lower hem portion of the protector base is formed short so that the rotating tip side portion of the arm is exposed downward from the protector base. about And features.

  With the above configuration, when the sliding door is closed, the sliding door and the vehicle body are located on the same plane, the arm rotates rearward, and the wire harness is pulled rearward from the arm fixing portion of the arm toward the vehicle body. Since a force in the vehicle outer side, that is, in the protector base direction acts on the arm, it is necessary to bring the tip end side of the arm into contact with the protector base. On the contrary, when the sliding door is opened, the sliding door is separated to the outside of the vehicle body, the arm is rotated forward, and the wire harness is pulled forward from the harness fixing portion of the arm toward the vehicle body. Since the force in the vehicle inner side, that is, the protector cover direction acts on the arm, it is not necessary to contact the arm with the protector base, and the lower hem portion of the protector base can be formed short to expose the tip end side of the arm. it can. Thereby, the protector can be made compact in the height direction.

  The protector structure for feeding an arm according to claim 2 is the protector structure for feeding an arm according to claim 1, wherein the rear skirt is inclined forward and the lower skirt is positioned horizontally. The rear skirt and the lower skirt continue through a curved skirt.

  With the above configuration, when the sliding door is opened approximately 1/2, the tip end side of the arm is positioned along the middle curved hem, the protector base is further compacted by the curved hem, and the sliding door The leading end side of the arm when transitioning from open to closed is smoothly guided from the lower hem of the protector base to the rear hem along the curved hem, On the contrary, the forward rotation is smoothly performed.

  The protector structure for arm feeding according to claim 3 is the protector structure for arm feeding according to claim 1 or 2, wherein the arm is rotatably supported in the protector, and the main arm The sub-arm is pivotally supported by the arm, and the sub-arm is the rotation tip side portion.

  With the above configuration, the sub arm is provided with the harness fixing portion, and the sub arm is pulled or pushed by the wire harness, and rotates freely at a larger angle than the main arm with the shaft portion for connection with the main arm as a fulcrum. In this case, the sub arm is exposed (projected) below the lower hem of the protector base, so that the sub arm and the lower hem are prevented from being inadvertently contacted with each other (by vibration or the like). The rotation is performed smoothly and wear due to rubbing of the lower skirt is prevented.

  The protector structure for arm feeding according to claim 4 is the protector structure for arm feeding according to claim 3, wherein the base end portion on the shaft portion side of the sub arm is located along the lower hem portion of the protector base. It is characterized by that.

  With the above configuration, when the sub arm moves from the lower hem of the protector base to the rear hem as the main arm rotates backward during the sliding door closing operation, the sub arm shaft side Since the base end of the sub-arm is positioned along the lower hem, the sub-arm is smoothly exposed along the lower hem from the state where the sub-arm is exposed downward without any contact between the sub-arm and the lower hem. Move (shift) to the side hem.

  The protector structure for arm feeding according to claim 5 is the protector structure for arm feeding according to any one of claims 1 to 4, wherein the harness fixing portion comes into contact with the protector base when the slide door is closed. The sliding door is located below the pivot tip side portion of the arm when the sliding door is opened.

  With the above configuration, the harness fixing portion operates in the same manner as the rotating tip side portion of the arm and the sub arm, and comes into contact with the rear hem portion of the protector base when the slide door is closed, thereby applying the force on the wire harness side to the rear side. When the sliding door is opened, the force in the direction of the protector cover opposite to the protector base is received from the wire harness and exposed downward from the lower skirt of the protector base.

  According to the first aspect of the present invention, considering the direction of the force applied to the arm when the slide door is opened and closed, and whether or not the arm needs to contact the protector base with the force, the arm can be rotated. Without obstructing, the protector base can be made compact in the height direction, so that the protector can be mounted smoothly and reliably in a narrow space in the slide door with good workability, and the other in the slide door. It is possible to increase the degree of freedom in the layout of the parts.

  According to the second aspect of the present invention, when the slide door is substantially half open or substantially half closed, the front end side of the arm is smoothly guided along the curved hem in the middle of the protector base. The protector base can be further compacted by the curved hem.

  According to the third aspect of the invention, the sub-arm can be smoothly rotated by preventing the sub-arm that rotates at a larger angle than the main arm from being inadvertently brought into contact with the lower skirt of the protector base. In addition, it is possible to prevent the lower hem from being worn.

  According to the fourth aspect of the present invention, the sub arm can be smoothly moved from the lower side of the protector base along the lower skirt using the base end portion on the shaft side of the sub arm as a guide. And the main arm can be rotated smoothly without being caught.

  According to the fifth aspect of the present invention, the load on the arm can be reduced by bringing the harness fixing portion that directly receives the tensile force and the pushing force from the wire harness into contact with the rear hem portion of the protector base. In addition, by exposing the harness fixing portion downward from the lower hem portion of the protector base, the height reduction rate of the protector base with respect to the entire length of the arm including the harness fixing portion can be further increased.

It is a front view which shows one Embodiment of the protector structure for arm electric power feeding which concerns on this invention. It is a longitudinal cross-sectional view which shows the protector structure corresponding to the position of the arm of the right line of FIG. It is a longitudinal cross-sectional view which shows the protector structure corresponding to the position of the arm of the upper chain line of FIG. It is a front view which shows one form of the protector structure for the conventional arm electric power feeding.

  1 to 3 show an embodiment of an arm feeding protector structure according to the present invention.

  As shown in FIG. 1, this structure has a lower skirt portion 4 of a protector base 1 made of synthetic resin that is placed vertically (vertically) on a sliding door (not shown) of an automobile as compared with the conventional case (shown by a chain line). It is formed on the back (short in the height direction), the main arm 5 is pivotally supported on the front upper part of the protector base 1, and the sub arm 6 connected to the main arm 5 and its harness fixing part 7 are connected to the protector like a chain line. The base 1 is positioned along the vertical base plate 8 of the protector base 1 along the rear skirt 4a, and most of the sub-arm 6 and all of the harness fixing portions 7 are connected to the front of the protector base 1. As shown by the solid line, the protector base 1 is exposed (protruded) downward from the lower end of the protector base 1, that is, the lower skirt 4b.

  A protector 3 composed of a protector base 1 and a protector cover 2 is fixed to a sliding door panel of an automobile. When the sliding door is fully closed, the main arm 5 is positioned almost horizontally toward the rear like a chain line, and the sub arm 6 and the harness are fixed. 1 and 2, the sub arm 6 and the harness fixing portion 7 are completely along (for example, in contact with) the base plate portion 8 of the protector base 1. To position.

  As shown by the solid line in FIG. 1, when the slide door is fully opened, the main arm 5 is tilted slightly downward from the vertical, and the sub arm 6 is pivoted forward with the shaft portion 9 on the base end side as a fulcrum. 1 and 3, the tip (lower end) of the main arm 5 slightly protrudes downward from the lower end of the protector base 1, that is, the lower skirt 4 b, and a part of the sub arm 6, that is, the shaft The base end portion 6a around the portion 9 is positioned opposite to the lower base portion 4b of the protector base 1 with a gap.

  As shown in FIG. 3, the sub arm 6 is disposed on the back side of the main arm 5 and is formed thicker than the main arm 5 or thick in the plate thickness direction with a peripheral rib (not shown). When the back surface of the part 6a is close to the surface of the substrate part 8 of the protector base 1, and the main arm 5 of the solid line on the front end side of the protector base 1 in FIG. When the sliding door is fully opened, a part of the sub arm 6, that is, the base end portion 6 a is arranged along the substrate portion 8 of the protector base 1 so as not to interfere with (do not collide with) the lower skirt portion 4 b of the substrate portion 8. Thus, the arms 5 and 6 can be smoothly rotated.

  As shown by the solid line in FIG. 1, the harness fixing portion 7 is integrally formed of a synthetic resin material on the lower side of the tip of the sub arm 6 in the fully opened state of the sliding door. As shown in FIG. 3, the back surface 6b of the sub arm 6 and the harness fixing portion 7 are provided. The back surface 7a is located on the same plane. The harness fixing part 7 has a ridge (not shown) for locking the peripheral groove of the synthetic resin corrugated tube (represented by reference numeral 10) of the wire harness 10 in FIG. And can be opened and closed. The main arm 5 is made of synthetic resin like the sub-arm 6, but can be made of a metal plate.

  As shown in FIG. 1, the corrugated tube portion of the wire harness 10 is routed so as to swing forward and backward over a harness fixing portion (not shown) on the vehicle body side, and the electric wire portion 10 a led out from the corrugated tube portion is the main arm 5. Is bent in a substantially S shape across the back surface of the protector 3 and led upward from the insertion path 11 at the front end of the protector 3, and is routed to the sliding door side while being fixed to the harness fixing portion 12 at the upper end of the insertion path 11 with a band. Is done.

  As shown by the chain line in FIG. 1, in the fully closed state of the slide door, the wire harness 10 is pulled obliquely downward toward the rear, and the slide door fits into the elevator opening (not shown) of the vehicle body and the vertical position of the slide door. Since the outer surface of the vehicle body and the outer surface of the vehicle body are located on the same plane, a harness fixing portion (not shown) on the vehicle body side is used as a fulcrum, and as shown by an arrow A in FIG. A force directed toward the substrate portion 8, that is, a vehicle outward force toward the outer surface of the slide door acts, and a force in the same direction (arrow A direction) acts on the harness fixing portion 7, the sub arm 6, and the main arm 5.

  Therefore, when the sliding door is fully closed and in the vicinity thereof (substantially fully closed), the sub arm 6 may come into contact with the substrate portion 8 of the protector base 1 due to the force in the direction of arrow A. Therefore, as shown in FIG. The protector cover 2 protrudes (extends) relatively rearward from the skirt (opening end) 13 of the protector cover 2.

  On the other hand, as shown by the solid line in FIG. 1, the wire harness 10 is pulled forward with the sliding door fully opened, and the sliding door opens along a bent guide rail (not shown) on the vehicle body side. From the initial stage (almost fully closed), the vehicle body exits outward from the elevator door and moves backward, and the vertical outer surface of the sliding door is located outside the vehicle body outer surface in the vehicle width direction. At the time of full opening and half opening, with the harness fixing portion on the vehicle body side as a fulcrum, as shown by the arrow B in FIG. 3, the force toward the wire harness 10 toward the vertical substrate portion 14 of the protector cover 2, that is, the vehicle toward the inner surface of the slide door An inward force acts, and a force in the same direction (arrow B direction) acts on the harness fixing portion 7, the sub arm 6, and the main arm 5.

  Therefore, since the sub arm 6 does not contact the substrate portion 8 of the protector base 1 when the sliding door is fully opened and half-opened, the substrate of the protector base 1 extends from the front end of the substrate portion 8 in FIG. The downward projecting length of the part 8, that is, the lower skirt part 4b, is shortened to make the protector base 1 compact in the height direction. The half-open time is a slide range during which the slide door is positioned outside the vehicle body, and is a range from immediately after the slide door is opened to fully open. The substrate portion 8 of the protector base 1 is shortened in the height direction in a range in which the main arm 5 rotates from the fully open position to the half open position of the slide door.

  When the sliding door is almost half open, the main arm 5 is located at the rear lower position in the middle of the chain line and the solid line in FIG. The rear bottom hem 4a and the horizontal lower skirt 4b of the substrate portion 8 are smoothly continued via a curved (arc-shaped) skirt 4c. If the action of the force in the direction of the arrow B in FIG. 3 is not taken into consideration when the slide door is fully opened to half-opened, the substrate portion 8 of the protector base 1 is formed in a hem length as shown by a chain line 15 in FIG.

  In FIG. 1, the alternate long and short dash line indicates the turning locus of the shaft portion 9 of the sub arm 6. When the sliding door is almost half open, the distal end side of the sub arm 6 and the upper half side of the harness fixing portion 7 are positioned along the middle curved skirt portion 4c, and the lower half side of the harness fixing portion 7 is curved. It protrudes downward from the skirt 4c of the. At the time of 1/2 opening, the tensile force of the wire harness 10 with the harness fixing portion on the vehicle body side as a fulcrum is weak, so the force in the direction of arrow B (the protector cover 2 direction) in FIG. ing. The sliding door is generically called a sliding structure, and the vehicle body is generically called a fixed structure.

  The main arm 5 of this example is formed in a thin plate shape than the sub arm 6, and is bent and deformed by a large bending force in the plate thickness direction. For this reason, the main arm 5 bends toward the protector base 1 with a large force in the direction of arrow A in FIG. 2, and the sub-arm 6 comes into contact with the protector base 1. Further, the main arm 5 bends toward the protector base 1 with a large force in the direction of arrow B in FIG. 3 and comes into contact with the vertical substrate portion 8 of the protector base 1. During normal use, it is preferable that the main arm 5 and the sub-arm 6 rotate without resistance without contacting the protector cover 2 or the protector base 1 with a slight gap.

  As shown in FIG. 1, the protector base 1 includes a horizontal upper end wall 16, a rearwardly inclined wall 17 that follows the upper end wall 16, a short front wall 18 that follows the front side of the upper end wall 16, and a front side of the front wall 18. A peripheral wall is constituted by a front end wall 19 positioned in parallel via the harness insertion passage 11 and has a substrate portion 8 perpendicular to the peripheral wall. The peripheral wall acts as a stopper that prevents further rotation of the harness fixing portion 7 of the main arm 5 or the sub arm 6.

  The protector cover 2 includes a horizontal upper end wall 20 and a vertical front wall 21 having the same length as the upper end wall 16 of the protector base 1, a rear inclined wall 22 shorter than the inclined wall 17 of the protector base 1, and a front end wall 19. The front end wall 23 having the same length forms a peripheral wall, and has a vertical substrate portion 14 that is perpendicular to the peripheral wall and has a shorter skirt than the substrate portion 8 of the protector base 1.

  Inner surfaces 8a and 14a having a curved longitudinal section are formed at the hem portions 4 and 13 of the protector base 1 and the protector cover 2, so that the sub-arm 6, the main arm 5 and the wire harness 10 can be smoothly slidably contacted. . The main arm 5 and the electric wire portion 10a of the wire harness 10 are accommodated in a space surrounded by the protector base 1 and the protector cover 2. The protector cover 2 is locked to the protector base 1 by locking means 22 such as a frame piece and a claw portion.

  The shaft portion 23 on the proximal end side of the main arm 5 of this example is formed in a cylindrical shape, and a bolt is inserted into a hole portion 24 inside the shaft portion 23 to fix the protector 3 to the slide door panel. . Therefore, the conventional intermediate hole 25 in FIG. 4 is eliminated, and the protector base portion 1a on the hole 24 side is shortened (compact) in the front-rear direction. As shown in FIG. 2, the cylindrical bearing portion 28 of the protector base 1 is slidably positioned outside the shaft portion 23, and a bolt insertion hole 24 is provided in the bottom wall of the bearing portion 28 (this configuration is different). To propose in detail).

  The main arm 5 and the sub arm 6 constitute an arm 29 or an arm assembly. By connecting the sub arm 6 to the main arm 5 by the shaft portion 9, the wire harness 10 is smoothly bent as the slide door is opened and closed. The main arm 5 is biased upward (in the harness surplus length absorption direction) by a torsion spring (spring member) (not shown). It is also possible to make the spring member act by the rigidity of the wire harness (particularly the corrugated tube) 10 without using the spring member.

  The arm 29 in this example is composed of the straight main arm 5 and the straight sub arm 6. For example, the thin plate-like main arm 5 and the thick plate-like sub arm 6 are not substantially connected together by the shaft portion 9. It is also possible to form a U-shape and to provide the harness fixing portion 7 integrally or separately at the tip of this arm (not shown). In FIG. 2, for example, the main arm 5 and the sub-arm 6 may be formed in a thin plate shape (may be an integrated arm) and arranged along the protector base 1. It is also possible to pivotally support the harness fixing portion 7 at the tip of the integrated arm. In this case, the harness fixing portion 7 is arranged instead of the sub arm 6 of FIG.

  The protector structure for arm feeding according to the present invention is slidably moved while the slide door of an automobile, a slide door of a vehicle other than an automobile, or a slide door of a manufacturing apparatus or test apparatus other than a vehicle is detached from a vehicle body or the like outward. Can be used for power supply.

1 protector base 2 protector cover 3 protector 4a rear hem 4b lower hem 4c curved hem 5 main arm 6 sub arm (rotating tip side)
6a Base end portion 7 Harness fixing portion 29 Arm

Claims (5)

  A protector comprising an outer protector base and an inner protector cover fixed vertically to the slide door, an arm pivotally supported in the protector, and a pivot tip end side of the arm. A harness fixing portion, and when the sliding door is closed forward, a force in the direction of the protector base acts on the arm, and a rotating tip side portion of the arm is applied to a rear hem portion of the protector base. The width of the rear hem is defined so as to come into contact, and when the sliding door is opened rearward, a force in the direction of the protector cover acts on the arm, and the rotation tip side portion of the arm A protector structure for feeding an arm, wherein a lower skirt portion of the protector base is formed to be short so as to be exposed downward from the protector base.   The rear skirt is inclined forwardly downward, the lower skirt is horizontally positioned, and the rear skirt and the lower skirt continue through a curved hem. The protector structure for arm electric power feeding according to claim 1 characterized by things.   The arm is composed of a main arm pivotally supported in the protector and a sub arm pivotally supported by the main arm, and the sub arm is the rotation tip side portion. The protector structure for arm electric power feeding of Claim 1 or 2 characterized by these.   The protector structure for feeding an arm according to claim 3, wherein a base end portion on the shaft portion side of the sub arm is located along a lower skirt portion of the protector base.   The said harness fixing | fixed part contacted the said protector base when the said slide door closed, and was located under the rotation front end side part of the said arm when this slide door opened. The protector structure for arm electric power feeding in any one.

Images