JP2015192464A - Protective structure for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent interference between a wire harness and other components and disconnection of the wire harness when wiring the wire harness extending from a functional component mounted on a panel material.SOLUTION: A hole 41 is formed in the cushion panel 40 of the seat cushion of a vehicle, and a cover 80 is attached to the hole from the floor side of the vehicle. The cover 80 includes a body, a restricting part, and two pairs of locking parts. The restricting part has a pair of side wall parts extending upward from the body, and a suppression part connecting the pair of side wall parts. The two pairs of locking parts are locked to the hole 41 and the cover 80 is attached thereto. When a wire harness 70 is inserted into the hole 41, and is wired to the underside from the upper side 40U side, the wire harness 70 is arranged within the restricting part of the cover 80.

Description

  The present invention relates to a protective structure for a wire harness that is passed through a through hole of a panel material.

  Conventionally, when wiring a wire harness of various functional parts provided in a panel material, a through hole is formed in the panel material and the wire harness is passed through the through hole due to space limitations. For example, in a vehicle seat cushion, a wiring design is adopted in which a wire harness extending from an electrical component such as a sensor or a heat seat installed in the seat cushion is passed through a through hole of the seat cushion panel. In the case of such a wiring design, the wire harness may be caught on the edge of the through hole and disconnected. In Patent Document 1, a protrusion is formed on a part of a seat pad, the protrusion is protruded from a through hole of a panel frame, and a wire harness of an electrical component disposed in the seat pad is formed on the protrusion. The protective structure which prevents that a wire harness contacts the edge of a through-hole by making it penetrate is disclosed.

JP 2001-46176 A

  However, in the protective structure described in Patent Document 1, the wire harness is led to the protrusion of the seat pad protruding from the through hole of the frame and extends to the outside of the seat pad, so that the wire harness extends away from the surface of the frame. Will do. Then, since there is a possibility that it may interfere with and come into contact with other parts arranged around the through-hole, there are cases where the wire harness is greatly curved depending on the relative positional relationship with the other parts. As a result, the wire harness may be worn or disconnected, and there is a possibility that the arrangement position of the components around the through hole may be limited.

  This invention is made | formed in view of such an actual condition, The objective is to protect a wire harness reliably, when inserting and routing a wire harness in the hole of a panel material.

  In order to solve the above-described problems of the prior art, the present invention provides a protection structure for a wire harness that is routed from one surface side of the panel material to the other surface side by inserting a hole in the panel material. A regulation that includes a cover fixed to the hole on the other surface side, and the cover regulates the posture of the wire harness so as to be inserted through the hole at an oblique angle with respect to a direction orthogonal to the panel material. Has a part.

  The cover includes a main body that abuts against the other surface of the panel material, and the restricting portion is erected on a surface of the main body opposite to a surface that abuts against the other surface of the panel material. A pair of side wall portions that extend along the longitudinal direction, and a suppression portion that connects the pair of side wall portions and suppresses the wire harness from protruding in a direction away from the other surface.

  The restricting portion has a smooth tunnel shape surrounding the wire harness.

  The cover includes an edge cover portion that covers an edge portion of the hole and the periphery thereof at an outer edge portion of the main body, and an engaging portion that engages with the edge portion of the hole.

  The locking portions are provided as a pair at positions on both sides of the wire harness that are regulated by the regulating portion.

  The cover is provided on a portion of the edge cover portion where the wire harness restricted by the restriction portion is located on the one surface side, and a protrusion protruding in a direction away from the one surface. The wire harness is routed through the hole in a state where the wire harness is in contact with the protrusion.

  Alternatively, the panel material is provided at a portion where the wire harness restricted by the restriction portion is located on the one surface side at the edge portion of the hole and protrudes in a direction away from the one surface. The wire harness is inserted through the hole while being in contact with the protrusion.

  As described above, according to the protective structure of the wire harness according to the present invention, the cover member fixed to the hole of the panel material is arranged at an oblique angle with respect to the direction perpendicular to the panel material. A hole can be inserted. Therefore, when wiring the wiring harness from one surface side of the panel to the other surface side through the hole in the panel material, the lifting of the wire harness can be suppressed on both surfaces of the panel, and both surfaces are aligned. The wire harness can be routed in the state.

  The cover includes a main body that abuts against the other surface of the panel material, and the restricting portion of the cover connects the pair of side wall portions and a pair of side wall portions that are erected on the main body and extend along the longitudinal direction of the wire harness, The wire harness is configured to include a restraining portion that suppresses protruding in the direction away from the other surface, thereby restricting displacement in the direction along the surface of the wire harness panel material that passes through the hole, and Positioning can be ensured.

  By making the restriction part of the cover into a smooth tunnel shape surrounding the periphery of the wire harness, the wire harness can be restricted along the periphery of its cross-sectional shape, so that the shape of the restriction part can be made as small as possible. Furthermore, it is possible to improve the tactile sensation when the operator or the user touches the restriction part of the cover.

  By providing the cover with an edge cover portion that covers the edge of the hole in the panel material at the outer edge of the main body of the cover, and an engagement portion that engages with the edge portion, It is possible to prevent touching the part, and it is not necessary to separately provide a separate member for fixing the cover to the hole, and the cover can be easily attached to the hole.

  By providing a pair of locking portions of the cover at positions corresponding to both sides of the wire harness arranged inside the restricting portion, the cover is inserted into the hole of the panel material while the wire harness is sandwiched between the pair of locking portions. Can be attached to. Therefore, displacement of the wire harness in the direction intersecting the longitudinal direction along the surface of the panel material is restricted. Further, by attaching the cover so that the wire harness is positioned between the pair of locking portions, the wire harness can be easily accommodated inside the restriction portion of the cover.

  The cover is provided at a portion of the edge cover portion that is located on one side of the wire harness, and includes a protruding portion that protrudes away from the one surface, and the wire harness contacts the protruding portion. The following effects can be obtained by adopting a configuration in which the holes are inserted and routed in such a state. In other words, the protrusion can move the wire harness away from the edge of the hole where the wire harness pulled out from one surface of the panel material to the other surface through the hole in the panel material easily comes into contact with the edge of the hole. It is possible to prevent the wire harness from coming into contact with and breaking.

  The panel material is provided at a portion located on one side of the wire harness at the edge of the hole, and includes a protruding portion protruding in a direction away from the one surface, and the wire harness contacts the protruding portion. By adopting a configuration in which the hole is inserted and routed in the state where the wire harness is placed, the disconnection due to the wire harness coming into contact with the edge of the hole can be prevented as described above.

It is a perspective view of the passenger seat for vehicles in which the protection structure of the wire harness concerning the embodiment of the present invention is provided. FIG. 5 is a perspective view of a passenger seat with the seat cushion rotated forward. It is a perspective view which shows a seat cushion transparently and shows a cushion panel. It is a figure which expands and shows the vicinity of the hole of the cushion panel in which the wire harness was penetrated from the upper surface side of the cushion panel. It is a figure which expands and shows the vicinity of the hole of the cushion panel in which the wire harness was penetrated from the lower surface side of the cushion panel. It is a perspective view which shows the cover attached to the hole of a cushion panel from the surface. It is a perspective view which shows the cover attached to the hole of a cushion panel from a back surface. It is sectional drawing which shows the vicinity of the hole of the cushion panel to which the cover was attached. It is sectional drawing which shows the vicinity of the hole of the cushion panel in a modification.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 is a perspective view of a passenger seat for a vehicle provided with a protection structure for a wire harness according to an embodiment of the present invention, and FIG. 2 is a passenger seat in a state where a seat cushion is rotated forward of the vehicle. FIG. The passenger seat 1 includes a seat cushion 10 on which an occupant sits, a seat back 20 on which the occupant's back contacts, and a headrest 30 on which the occupant's head contacts. The back surface of the seat cushion 10 is covered with a cushion panel 40 which is a thin plate-like panel material. The seat cushion 10 can rotate together with the cushion panel 40 toward the front side of the vehicle. By rotating the seat cushion 10 together with the cushion panel 40 to the front side, the box 50 provided below the seat cushion 10 is exposed and luggage can be stored.

  FIG. 3 is a perspective view showing the cushion panel 40 in a perspective view of the seat cushion 10. A functional component 60 such as a load sensor is mounted on the upper surface of the cushion panel 40. As shown in FIG. 4, the wire harness 70 extending from the functional component 60 is inserted through a hole 41 that is a rectangular through hole formed in the cushion panel 40, and the upper surface 40 </ b> U (the seat cushion 10 is disposed on the cushion panel 40). It is routed from the surface to the lower surface (the surface on the vehicle floor side).

  As shown in FIG. 5, a resin cover 80 is attached to the hole 41 on the lower surface 40 </ b> D side of the cushion panel 40. 6 is an enlarged perspective view showing the cover 80 from the front surface (surface on the floor side of the vehicle), and FIG. 7 is an enlarged perspective view showing the cover 80 from the back surface (surface facing the cushion panel 40). In the following description, the front, rear and front / rear directions of the cover 80 correspond to the front, rear and front / rear directions of the vehicle when the cover 80 is attached to the hole 41, respectively. Corresponds to the width direction of the vehicle when the cover 80 is attached to the hole 41. In the present embodiment, the wire harness 70 passes through the hole 41 along the front-rear direction of the vehicle. That is, the longitudinal direction of the wire harness 70 inserted through the hole 41 is along the front-rear direction of the vehicle.

  The cover 80 is a thin plate-like member having a substantially rectangular shape as a whole, and has a main body 81 and a restricting portion 82. The main body 81 is in contact with the lower surface 40D of the cushion panel 40. A portion of the outer edge 81 </ b> A of the main body 81 other than the portion where the restricting portion 82 is provided covers the edge of the hole 41 of the cushion panel 40 and its periphery. The outer edge portion 81A is a region between the two-dot chain line and the outer end portion of the cover 80 (main body 81) in FIGS. The restricting portion 82 includes a pair of side wall portions 82A and 82B and a suppressing portion 82C. The side wall portions 82A and 82B are erected on the surface side of the cover 80 in the main body 81 and extend along the front-rear direction, in other words, along the longitudinal direction of the wire harness 70 disposed in the restricting portion 82. Is formed. Further, the side wall portions 82A and 82B are connected by a suppressing portion 82C. That is, the restricting portion 82 protrudes from the main body 81 so that the front side is raised and the back side is depressed. Further, the restricting portion 82 has a smooth tunnel shape as a whole by the suppressing portion 82C and the pair of side wall portions 82A and 82B. This tunnel shape corresponds to the cross-sectional shape of the wire harness 70 disposed inside the restricting portion 82.

  The cover 80 is formed with a pair of locking portions 83A and 83B and a pair of locking portions 84A and 84B. The pair of locking portions 83A and 83B have a substantially L-shaped cross-section cut along the front-rear direction. The pair of locking portions 83 </ b> A and 83 </ b> B are formed in the vicinity of the side portion on the front side of the outer edge portion 81 </ b> A in the main body 81, and are locked to the front side edge portion of the hole 41. The pair of locking portions 84 </ b> A and 84 </ b> B has a substantially U-shaped cross-section cut along the front-rear direction. The pair of locking portions 84 </ b> A and 84 </ b> B is formed on the rear side portion of the peripheral edge portion 81 </ b> A of the main body 81 and is locked to the rear edge portion of the hole 41. The pair of locking portions 83 </ b> A and 83 </ b> B are formed on both sides of the wire harness 70 disposed in the restricting portion 82 so as to be positioned on a straight line that is substantially orthogonal to the longitudinal direction of the wire harness 70 (the front-rear direction of the cover 80). Yes. Similarly, the pair of locking portions 84 </ b> A and 84 </ b> B are positioned on a straight line that is substantially orthogonal to the longitudinal direction of the wire harness 70 (the front-rear direction of the cover 80) on both sides of the wire harness 70 disposed in the restricting portion 82. Is formed.

  The cover 80 has a pair of ribs 85A and 85B erected on the back surface 80B. The ribs 85A are arranged at equal intervals along the front-rear direction on one surface of the substantially rectangular portion extending in the front-rear direction of the cover 80, and on the surface of the substantially rectangular portion opposite to the restricting portion 82, and intersect the substantially rectangular portion. And three substantially trapezoidal portions extending in the direction. The substantially rectangular portion and the substantially trapezoidal portion are integrally formed. The rib 85B has the same configuration. As shown in FIG. 4, the rib 85 </ b> A is formed at a position where a portion of the substantially trapezoidal portion in the vicinity of the main body 81 comes into contact with an outer edge of the vehicle extending in the front-rear direction of the hole 41 of the cushion panel 40. Similarly, the rib 85 </ b> B is formed at a position where a portion of the substantially trapezoidal portion in the vicinity of the main body 81 abuts on a vehicle inner edge extending in the front-rear direction of the hole 41 of the cushion panel 40.

  On the back surface 80 </ b> B of the cover 80-, a protrusion 86 is formed that extends in the front-rear direction of the cover 80, that is, in the longitudinal direction of the wire harness 70 disposed in the restriction portion 82. The front end of the protrusion 86 is positioned between the pair of ribs 85A and 85B, and the rear end is positioned between the pair of locking portions 84A and 84B. The projecting portion 86 projects from the front end portion to the rear end portion, in other words, from the central portion of the main body 81 toward the rear direction so as to gradually increase its thickness.

  FIG. 8 is a diagram showing a cross section cut at the position of the line AA in FIG. 4 from the direction of the arrow, and some members are omitted to clarify the configuration. The wire harness 70 is disposed in the restriction portion 82 of the cover 80, thereby inserting the hole 41 at an oblique angle with respect to the direction orthogonal to the cushion panel 40. A portion of the wire harness 70 located on the upper surface U side of the cushion panel 40 is in contact with the protrusion 86. That is, the protrusion 86 is provided at a position where a portion located on the upper surface 40U side of the cushion panel 40 abuts in the wire harness 70 disposed in the restriction portion 82 when the cover 80 is attached to the hole 41.

  As described above, according to the present embodiment, when the cover 80 is fixed to the hole 41 of the cushion panel 40 and the wire harness 70 is inserted into the hole 41 and routed from the upper surface 40U to the lower surface 40D of the cushion panel 40, The wire harness 70 is disposed inside the restricting portion 82 of the cover 80. Therefore, the hole 41 can be inserted through the wire harness 70 at an oblique angle with respect to the direction orthogonal to the cushion panel 40. As a result, the lifting of the wire harness 70 can be suppressed on the upper surface 40U and the lower surface 40D of the cushion panel 40, and the wire harness 70 can be routed in a state along both surfaces.

  It is conceivable that the area of the hole formed in the cushion panel 40 is increased and the inclination angle of the wire harness 70 inserted through the hole with respect to the cushion panel 40 is increased. However, the strength of the cushion panel 40 may be reduced by increasing the hole area. According to the present embodiment, since the inclination angle of the wire harness 70 is increased by the restriction portion 82 of the cover 80, the upper surface 40U and the lower surface 40D of the cushion panel 40 are not lowered without reducing the strength of the cushion panel 40. The wiring harness 70 can be routed.

  Furthermore, in the passenger seat 1 having the seat cushion 10 of the type that can be rotated forward as in the present embodiment, the wire harness 70 is routed along the upper surface 40U and the lower surface 40D of the cushion panel 40, whereby The effect is obtained. As shown in FIG. 2, when the seat cushion 10 is rotated forward, the cushion panel 40 is greatly separated from the side frame and the side cover of the seat cushion 10, so that the cushion panel 40 is mounted on the cushion panel 40. It is necessary to provide sufficient slack so that the wire harness 70 extending from the functional component is not pulled. On the other hand, when the seat cushion 10 is positioned on the box 50 as shown in FIG. 1, if the slack of the wire harness 70 is large, problems such as catching on other parts or disconnection occur. According to this embodiment, since the wire harness 70 is routed along the upper surface 40U and the lower surface 40D of the cushion panel 40, the above-described problem relating to the wire harness 70 can be obtained regardless of the position of the seat cushion 10. Occurrence can be prevented.

  If the wire harness 70 is routed on the side of the cushion panel 40, the wire harness 70 is caught on the side of the cushion panel 40 when the seat cushion 10 rotates. However, as in the present embodiment, if the hole 41 is inserted from the upper surface 40U of the cushion panel 40 and is routed along the lower surface 40D, it can be routed closer to the floor side of the vehicle body. Therefore, it is possible to prevent the wire harness 70 from being caught in the side portion of the cushion panel 40.

  According to the present embodiment, the cover 80 includes the main body 81 that contacts the lower surface 40D of the cushion panel 40, and the cover regulation portion 82 is a pair of side walls that are erected on the main body 81 and extend along the longitudinal direction of the wire harness 70. The parts 82A and 82B and a pair of side wall parts 82A and 82B are connected, and a suppressing part 82C that suppresses the wire harness 70 from protruding downward is provided. Therefore, the displacement in the direction along the surface of the cushion panel 40 of the wire harness 70 inserted through the hole 41 can be restricted, and the wire harness 70 can be positioned reliably.

  According to the present embodiment, the regulating portion 82 including the pair of side wall portions 82A and 82B and the suppressing portion 82C is formed into a smooth tunnel shape surrounding the wire harness 70. Therefore, since the wire harness 70 can be regulated along the periphery of the cross-sectional shape thereof, the shape of the regulating portion 82 can be made as small as possible. In addition, the smooth tunnel shape does not impair the tactile sensation given to the operator or the occupant who rotates the seat cushion 10.

  According to this embodiment, the peripheral edge portion 81 </ b> A of the main body 81 of the cover 80 covers the edge portion of the hole 41 of the cushion panel 40 and the periphery thereof. An operator or the like can be prevented from touching the edge of the hole 41.

  The cover 80 is formed with a pair of locking portions 83A and 83B and a pair of locking portions 84A and 84B that are locked to the edge of the hole 41. Therefore, it is not necessary to separately provide a separate member for fixing the cover 80 to the hole 41, an increase in the number of parts can be suppressed, and the cover 80 can be easily attached to the hole 41.

  Moreover, a pair of latching | locking part 83A, 83B and a pair of latching | locking part 84A, 84B are provided in the position on the both sides of the wire harness 70 arrange | positioned inside the control part 82, These pairs of latching The cover 80 can be attached to the hole 41 in a state where the wire harness 70 is sandwiched between the portions. Therefore, displacement of the wire harness 70 in the direction intersecting the longitudinal direction along the surface of the cushion panel 40 is restricted. Further, by attaching the cover 80 so that the wire harness 70 is positioned between the pair of locking portions, the wire harness 70 can be easily accommodated in the restriction portion 82 of the cover 80.

  According to the present embodiment, the protruding portion 86 is formed on the back surface 80 </ b> B of the cover 80, and the wire harness 70 is inserted through the hole 41 while being in contact with the protruding portion 86. Therefore, since the protrusion 86 is interposed at the rear edge (the edge located on the right side in FIG. 8) of the hole 41, the wire harness 70 does not come into contact with the wire 41 and disconnection is prevented. Further, since the wire harness 70 positioned on the upper surface 40U side is lifted upward by the protrusion 86, the wire harness 70 positioned on the lower surface 40D side is connected to the front edge of the hole 41 (the edge positioned on the left side in FIG. 8). ), And the wire harness 70 is strongly pressed against this edge to prevent disconnection.

  In the present embodiment, the protrusion 86 provided on the cover 80 prevents contact with the edge of the hole 41 of the wire harness 70. However, the present invention is not limited to this, and a member that replaces the protrusion 86 is cushioned. The panel 40 may be provided. FIG. 9 is a diagram showing a modification thereof. Like FIG. 8, the cross section cut | disconnected in the position corresponding to line AA of FIG. 4 is shown from the arrow direction, and some members are abbreviate | omitted. The cushion panel 40 has a protrusion 42 that protrudes in a direction away from the upper surface 40U. The protrusion 42 is provided at the edge of the hole 41 at a portion where the wire harness 70 located on the upper surface 40U side is located. A portion of the wire harness 70 located on the upper surface U side of the cushion panel 40 is in contact with the protrusion 42.

  Also in this modified example, the wire harness 70 is inserted through the hole 41 in a state where the wire harness 70 is in contact with the protrusion 42 of the cushion panel 40. Therefore, since the protrusion 42 is interposed at the rear edge (the edge located on the right side in FIG. 9) of the hole 41, the wire harness 70 located on the upper surface 40U side does not come into contact and the disconnection is caused. Is prevented. Further, since the wire harness 70 positioned on the upper surface 40U side is lifted upward by the protrusion 42, the wire harness 70 positioned on the lower surface 40D side is connected to the front edge of the hole 41 (the edge positioned on the left side in FIG. 9). ), And the wire harness 70 is strongly pressed against this edge to prevent disconnection.

  In addition, although this embodiment demonstrated taking the passenger seat 1 of a vehicle as an example, it is applicable to components which have a structure which lets wire harnesses pass through the hole of a panel material other than a vehicle seat.

  While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Passenger seat 10 Seat cushion 20 Seat back 30 Headrest 40 Cushion panel 40U Upper surface 40D Lower surface 41 Hole 42 Protrusion part 50 Box 60 Functional component 70 Wire harness 80 Cover 80A Cover surface 80B Cover back surface 81 Main body 81A Outer edge part 82 Restriction part 82A Suppression Portions 82B, 82C side wall portions 83A, 83B a pair of locking portions 84A, 84B a pair of locking portions 85A, 85B ribs 86 projections

Claims (7)

In the protective structure of the wire harness routed from one side of the panel material to the other side by inserting the hole in the panel material,
A cover fixed to the hole on the other surface side;
The said cover has a control part which controls the attitude | position of the said wire harness so that the said hole may be penetrated by the diagonal angle with respect to the direction orthogonal to the said panel material, The protection structure of the wire harness characterized by the above-mentioned. The cover includes a body that abuts against the other surface of the panel material,
The restricting portion includes a pair of side wall portions that are erected on a surface opposite to a surface that contacts the other surface of the panel member in the main body and extend along a longitudinal direction of the wire harness, and the pair of side wall portions. The wire harness protection structure according to claim 1, further comprising: a restraining portion that suppresses the wire harness from protruding in a direction away from the other surface.   The wire harness protection structure according to claim 1, wherein the restricting portion has a smooth tunnel shape surrounding the wire harness.   The said cover is provided with the edge part cover part which covers the edge part of the said hole in the outer edge part of the said main body, and its circumference | surroundings, and the latching | locking part latched to the said edge part of the said hole. Item 4. A protective structure for a wire harness according to Item 2 or 3.   The said latching | locking part is provided in a pair on both sides of the said wire harness controlled by the said control part, The protection structure of the wire harness of Claim 4 characterized by the above-mentioned. The cover is provided on a portion of the edge cover portion that is located on the one surface side of the wire harness restricted by the restriction portion, and a protrusion protruding in a direction away from the one surface. Prepared,
The wire harness protection structure according to claim 4, wherein the wire harness is routed through the hole while being in contact with the protrusion. The panel material is provided at a portion of the edge of the hole located on the one surface side of the wire harness restricted by the restriction portion, and protrudes in a direction away from the one surface. With
The wire harness protection structure according to claim 4, wherein the wire harness is routed through the hole while being in contact with the protrusion.

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