Front body structure

Abstract

To provide a vehicle body front structure which acquires a merit of improvement in arrangement efficiency of an audio unit and an airbag unit or the like and facilitates wiring of a wire harness.SOLUTION: A steering hanger beam includes: a first hanger beam; and a second hanger beam which is joined by offsetting a center axis in a vertical direction of a vehicle body from the first hanger beam in an offset joining section. A protector includes: a first linear storage section which is mounted along the first hanger beam; a second linear storage section which is mounted along the second hanger beam; and an offset storage section which is formed between the first linear storage section and the second linear storage section and is mounted along the offset joining section. In the offset storage section, cross-sectional shaped area is formed to be larger than cross-sectional shaped area of the first linear storage section and cross-sectional area of the second linear storage section.SELECTED DRAWING: Figure 3B

Description

[Technical Field]

[0001] The present invention relates to a vehicle front body structure in which a protector for protecting a wire harness is attached to a steering hanger beam. [Background technology]

[0002] Patent Document 1 describes a structure in which a protector through which a wire harness is inserted is disposed above a horizontal reinforcement along its longitudinal direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-055105 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to improve the placement efficiency of audio units, airbag units, etc., the pipes of the steering hanger beam are offset, and the number of pipe welds and bracket welds increases in the offset section. This increases the restrictions on branch creation locations and fixing points for the harness routed on the steering hanger beam, making it difficult to handle.

[0005] In view of the above problems, the present invention aims to provide a front vehicle body structure that uses a protector configured in a crank shape to correspond to the external shape of a steering hanger beam whose central axis is offset in the vertical direction of the vehicle body, thereby achieving the benefit of improving the placement efficiency of audio units, airbag units, etc., and making it easy to route wire harnesses. [Means for solving the problem]

[0006] A vehicle body front structure according to one aspect of the present invention is a vehicle body front structure having a steering hanger beam and a protector that protects a wire harness routed along the steering hanger beam, The steering hanger beam is a first hanger beam; A second hanger beam is joined at an offset joint with respect to the first hanger beam such that the central axis of the second hanger beam is offset in the vertical direction of the vehicle body, The protector comprises: a first linear receiving portion mounted along the first hanger beam; a second linear receiving portion mounted along the second hanger beam; an offset receiving portion formed between the first linear receiving portion and the second linear receiving portion and attached along the offset joint; The offset receiving portion is formed so that the cross-sectional area thereof is larger than the cross-sectional area of ​​the first linear receiving portion and the cross-sectional area of ​​the second linear receiving portion. And, The first linear receiving section is The recess has a cross-sectional shape including a flat bottom surface portion and first and second side walls extending from both longitudinal edge portions of the bottom surface portion, The second linear receiving section is The recess has a cross-sectional shape including a flat bottom surface portion and first and second side walls extending from both longitudinal edge portions of the bottom surface portion, The offset housing portion is A flat bottom surface portion; a first offset wall portion and a second offset wall portion erected from the bottom surface portion; a recess cross-sectional shape formed by a third offset wall portion and a fourth offset wall portion erected from the bottom surface portion, a space formed between a lower end of the first offset wall portion in the vertical direction and an upper end of the second offset wall portion in the vertical direction communicates with a space formed by a recessed cross-sectional shape of the first linear accommodating portion, A space formed between the lower end of the third offset wall portion in the vertical direction and the upper end of the fourth offset wall portion in the vertical direction communicates with a space formed by the recessed cross-sectional shape of the second linear accommodating portion. . [Effects of the Invention]

[0007] According to the present invention, by using a protector configured in a crank shape to correspond to the external shape of the offset steering hanger beam, it is possible to obtain the advantage of improving the placement efficiency of audio units, airbag units, etc., and to provide a front body structure that makes it easy to route wire harnesses.

[0008] Furthermore, by providing a larger space in the offset accommodating portion of the protector than the first linear accommodating portion and the second linear accommodating portion, excess length that may occur due to manufacturing tolerances when manufacturing the wire harness can be accommodated in the offset accommodating portion, thereby protecting excess length that cannot be determined at the time of design. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram showing a configuration of an instrument panel of a vehicle according to an embodiment; [Figure 2] 1 is a diagram showing the configuration of a steering hanger beam to which a protector according to an embodiment can be attached; [Figure 3A] FIG. 2 is a perspective view of a housing portion of the protector according to the embodiment. [Figure 3B] FIG. 2 is a front view of the housing portion of the protector according to the embodiment. [Figure 4] FIG. [Figure 5] 1 is a diagram showing a vehicle body front structure according to an embodiment; [Figure 6] 5A and 5B are diagrams illustrating the structure of a connector accommodating portion. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the invention as claimed, and not all combinations of features described in the embodiments are necessarily essential to the invention. Two or more of the features described in the embodiments may be arbitrarily combined. Furthermore, the same reference numerals are used for the same or similar components, and redundant explanations will be omitted.

[0011] FIG. 1 is a diagram showing a schematic configuration of an instrument panel (hereinafter referred to as instrument panel) 120 of a vehicle 100 according to an embodiment. The up, down, left, and right directions of the vehicle 100 are defined based on the line of sight of a passenger aboard the vehicle 100. The vehicle 100 is provided with an instrument panel 120 that separates the front end of the passenger compartment below the windshield. The instrument panel 120 extends in the vehicle width direction (left and right direction) within the passenger compartment. A steering wheel 130 is attached to the instrument panel 120 at a position corresponding to the driver's seat. A glove compartment 140 is formed in the instrument panel 120 at a position corresponding to the passenger seat. The glove compartment 140 is provided with a lid 140a that opens and closes the storage space.

[0012] Air outlets 150 are defined at multiple locations in the vehicle width direction in the instrument panel 120. Air ducts of an air conditioning system (HVAC) are connected to the outlets 150. The instrument panel 120 is also provided with an airbag for the passenger seat (not shown).

[0013] An audio unit 16 is incorporated into instrument panel 120 above center console 125. Audio unit 16 includes an audio main unit 16a and a speaker (not shown) that is electrically connected to audio main unit 16a and is embedded in, for example, a wall facing the interior space of the vehicle. Audio main unit 16a, for example, receives radio waves and plays back audio, or plays back audio based on music data stored on a recording medium such as a compact disc (CD) or hard disk drive (HDD).

[0014] (Structure of steering hanger beam) Fig. 2 is a diagram showing the configuration of a steering hanger beam to which the protector of the embodiment can be attached. Fig. 2 is a diagram showing the steering hanger beam as seen from the front of the vehicle 100, and the left-right direction in the coordinate system is reversed to that of the coordinate system in Fig. 1, with the left side of the paper corresponding to the driver's seat and the right side of the paper corresponding to the passenger seat.

[0015] As shown in FIG. 2, the vehicle 100 includes a steering hanger beam (hereinafter also referred to as a beam) 22 that extends in the vehicle width direction and is connected to left and right front panels (not shown). The beam 22 functions as at least the framework of the interior of the instrument panel in the instrument panel assembly of the vehicle 100. In this embodiment, an instrument panel assembly structure that is configured with the beam 22 and the protector 20 that protects the wire harness that is inserted therethrough is referred to as a vehicle body front structure. The vehicle body front structure of this embodiment includes the steering hanger beam 22 and the protector 20 that protects the wire harness that is routed along the steering hanger beam 22.

[0016] The beam 22 is a die-cast part made of a light metal alloy material such as aluminum or magnesium. The beam 22 is disposed in front of the instrument panel 120 in the passenger compartment, extends in the vehicle width direction, and is fixed to the front pillars on both sides of the vehicle body. The beam 22 is a frame that supports the steering wheel 130. The beam 22 supports the steering wheel 130 at the front of the passenger compartment so that it can be steered. The beam 22 suppresses vibration of the steering wheel 130 and improves the rigidity of the front part of the vehicle body.

[0017] The beam 22 includes a first hanger beam 2 that supports a steering wheel 130, and a second hanger beam 3 that supports an audio unit 16 and an airbag unit 17. The first hanger beam 2 and the second hanger beam 3 have a hollow cylindrical shape with a circular cross section.

[0018] The beam 22 has a first hanger beam 2 and a second hanger beam 3 joined to the first hanger beam 2 with its central axis offset in the up-down direction of the vehicle body. At the offset joint 19 of the beam 22, the first hanger beam 2 and the second hanger beam 3 are joined with their central axes offset in the up-down direction of the vehicle body. The second hanger beam 3 is joined to the first hanger beam 2 at the offset joint 19 with its central axis offset in the up-down direction of the vehicle body.

[0019] Beam 22 is configured such that the first hanger beam 2 and the second hanger beam 3 are positioned such that their central axes are offset in the vertical direction of the vehicle body, and the inner end of the first hanger beam 2 in the vehicle width direction is connected to the inner end of the second hanger beam 3 in the vehicle width direction. The outer diameter of the first hanger beam 2 is larger than the outer diameter of the second hanger beam 3, and the length of the first hanger beam 2 is shorter than the length of the second hanger beam 3.

[0020] The first hanger beam 2 and the second hanger beam 3 have protector mounting portions 4 to 7 for fixing a protector 20 (described later) and vehicle body mounting portions 8 to 10 for fixing to the vehicle body.

[0021] Brackets 11 and 12, which are connected to the front pillars on both sides of the vehicle body, are fixed to both ends of the beam 22. A flange-shaped bracket 11 is fixed to the outer end of the first hanger beam 2 of the beam 22 in the vehicle width direction, and a flange-shaped bracket 12 is fixed to the outer end of the second hanger beam 3 of the beam 22 in the vehicle width direction.

[0022] The first hanger beam 2 is provided with a steering support portion that supports a steering wheel 130. The second hanger beam 3 is provided with an audio support portion 14 that supports an audio unit 16 and an airbag support portion 15 that supports an airbag unit 17.

[0023] (Configuration of protector 20) Next, the configuration of the protector 20 of the embodiment will be described. The protector 20 of the embodiment has a housing portion 30 that houses the wire harness 160, and lid portions (40A to 40D) that close the open end of the housing portion 30.

[0024] Fig. 3A is a perspective view of the housing portion 30 of the protector 20 of the embodiment, and Fig. 3B is a front view of the housing portion 30 of the protector of the embodiment. Fig. 4 is a front view of the protector 20 of the embodiment. Fig. 5 is a diagram showing a vehicle body front structure 500 of the embodiment, and is a diagram of a part of the beam 22 to which the protector 20 is attached, as seen from the front of the vehicle body.

[0025] The protector 20 of this embodiment is disposed on the front side of the vehicle body of the beam 22 and is attached to the protector attachment portions 4 to 7.

[0026] The protector 20 of this embodiment has a crank-shaped outer shape extending in the vehicle width direction in a plan view. The protector 20 accommodates the audio unit 16 and airbag unit 17 shown in Fig. 2 as well as a wire harness 160 connected to a car navigation unit and other electrical equipment. The protector 20 is manufactured as a sub-assembly part pre-assembled with multiple types of wire harnesses 160 housed together inside, and is configured to be attachable to the vehicle body.

[0027] Protector 20 includes a crank-shaped accommodating section 30, a plurality of lid sections 40A to 40D, and a plurality of connector accommodating sections 50A to 50C. Accommodating section 30 may be divided into a plurality of sections. Accommodating section 30, lid sections 40A to 40D, and connector accommodating sections 50A to 50C are molded articles made of a resin material such as PP (polypropylene) or ABS.

[0028] The storage section 30 is configured in a crank shape to correspond to the outer shape of the beam 22, in which the central axes of the first hanger beam 2 and the second hanger beam 3 are offset in the vertical direction. The open end (open surface) of the storage section 30 is closed by a plurality of lids 40A to 40D.

[0029] The multiple lid parts 40A to 40D have outer shapes corresponding to the multiple shape portions of the storage part 30. The multiple lid parts 40A to 40D include a first lid part 40A attached to the first linear storage part 31 of the storage part 30, a second lid part 40B and a third lid part 40C attached to the offset storage part 33, and a second lid part 40D attached to the second linear storage part 32.

[0030] The plurality of connector accommodating portions 50A to 50C are configured to be detachable from a plurality of positions in the accommodating portion 30. The plurality of connector accommodating portions 50A to 50C accommodate and protect a joint connector 170 to which a connector of a wire harness is connected.

[0031] 3A, the accommodating section 30 has a concave cross section in the short side direction, and the cover sections 40A to 40D are configured in a flat plate shape so as to close the open end of the accommodating section 30. The accommodating section 30 includes a section 31 that is linear in the longitudinal direction (hereinafter referred to as the first linear accommodating section), a section 32 that is linear in the longitudinal direction (hereinafter referred to as the second linear accommodating section), and an offset accommodating section 33. The offset accommodating section 33 is formed between the end of the first linear accommodating section and the end of the second linear accommodating section.

[0032] The storage section 30 is attached along the beam 22. The first linear storage section 31 is attached along the first hanger beam 2 on the driver's seat side inside the vehicle cabin, and the second linear storage section 32 is attached along the second hanger beam 3 on the passenger seat side inside the vehicle cabin. In addition, the offset storage section 33 is attached along the offset joint 19 where the first hanger beam 2 and the second hanger beam 3 on the beam 22 are joined with an offset.

[0033] In this embodiment, the first linear accommodating section 31 is composed of a flat bottom surface 31a and side wall portions 31b, 31c. The side wall portions 31b, 31c include a first side wall portion 31b and a second side wall portion 31c that stand upright from both longitudinal edge portions of the bottom surface 31a. An open end is formed by a first edge portion 31d of the first side wall portion 31b that is not connected to the bottom surface 31a and a second edge portion 31e of the second side wall portion 31c that is not connected to the bottom surface 31a.

[0034] An opening for branching the wire harness is formed in at least one of the first side wall portion 31b and the second side wall portion 31c of the first linear accommodating portion 31. For example, as shown in FIG. 3A , a notch 31-1c is formed in the second side wall portion 31c as the branching opening. The wire harness can be branched from the notch 31-1c and routed to a joint connector held in the holding portion 61. Note that the formation of the notch 31-1c is merely an example, and a branching opening (e.g., a notch) may be formed in the first side wall portion 31b. The shape of the opening for branching the wire harness is not limited to the notch shape, and a circular or rectangular opening may be formed. Furthermore, a fixing portion for fixing the wire harness may be formed inside the first linear accommodating portion 31. This improves the degree of freedom in routing the wire harness with respect to branching and fixing.

[0035] The first linear accommodating section 31 and the first lid section 40A are elongated members having a substantially constant width in the short direction and extending in the longitudinal direction. The first lid section 40A is engaged with the first linear accommodating section 31 so as to close the open end formed by the first side wall section 31b and the second side wall section 31c.

[0036] The second linear accommodating section 32 is composed of a flat bottom surface 32a and side wall portions 32b, 32c. The pair of side wall portions 32b, 32c includes a first side wall portion 32b and a second side wall portion 32c erected from both longitudinal edge portions of the bottom surface 32a. An open end is formed by a first edge portion 32d of the first side wall portion 32b that is not connected to the bottom surface 32a and a second edge portion 32e of the second side wall portion 32c that is not connected to the bottom surface 32a.

[0037] An opening for branching the wire harness is formed in at least one of the first side wall portion 32b and the second side wall portion 32c of the second linear accommodating portion 32. For example, as shown in FIG. 3A , a notch 32-1c is formed in the second side wall portion 32c as the branching opening. The wire harness can be branched from the notch 32-1c and routed to a joint connector held in the holding portion 62. Note that the formation of the notch 32-1c is merely an example, and a branching opening (e.g., a notch) may be formed in the first side wall portion 32b. The shape of the opening for branching the wire harness is not limited to the notch shape, and a circular or rectangular opening may be formed. Furthermore, a fixing portion for fixing the wire harness may be formed inside the second linear accommodating portion 32. This improves the degree of freedom in routing the wire harness with respect to branching and fixing.

[0038] The second linear accommodating portion 32 and the fourth lid portion 40D are elongated members having a substantially constant width in the short direction and extending in the longitudinal direction. The fourth lid portion 40D is engaged with the second linear accommodating portion 32 so as to close the open end formed by the first side wall portion 32b and the second side wall portion 32c.

[0039] As shown in FIG. 3B, the offset accommodating section 33 has a recessed cross-sectional shape composed of a flat bottom surface 33a, a first offset wall 33b and a second offset wall 33c extending from the bottom surface 33a, and a third offset wall 33d and a fourth offset wall 33e.

[0040] The space formed between the vertical lower end 133b of the first offset wall portion 33b and the vertical upper end 133c of the second offset wall portion 33c is connected to the space formed by the recessed cross-sectional shape of the first linear accommodating portion 31.

[0041] In addition, the space formed between the vertical lower end 233d of the third offset wall portion 33d and the vertical upper end 233e of the fourth offset wall portion 33e is connected to the space formed by the recessed cross-sectional shape of the second linear accommodating portion 32.

[0042] An open end of the offset accommodating portion 33 is formed by an edge portion of the first offset wall portion 33b, an edge portion of the second offset wall portion 33c, an edge portion of the third offset wall portion 33d, and an edge portion of the fourth offset wall portion 33e that are not connected to the bottom surface portion 33a. The second lid portion 40B and the third lid portion 40C are engaged with the offset accommodating portion 33 so as to close the open end of the offset accommodating portion 33.

[0043] In addition, to prevent the multiple lid portions 40A to 40D from falling off the first linear accommodating portion 31, the second linear accommodating portion 32, and the offset accommodating portion 33, each open end may be provided with a locking portion that fits into each of the two portions with a concave-convex fit.

[0044] As shown in FIG. 3A, the first linear accommodating section 31, the second linear accommodating section 32, and the offset accommodating section 33 are configured so that their cross sections in the short direction (the vertical direction on the paper) are concave. The first linear accommodating section 31 has a concave-shaped cross-sectional area S1 (cross-sectional area S1). The second linear accommodating section 32 has a concave-shaped cross-sectional area S2 (cross-sectional area S2). The offset accommodating section 33 has a concave-shaped cross-sectional area S3 (cross-sectional area S3). The cross-sectional area S2 is larger than the cross-sectional area S1, and the cross-sectional area S3 is larger than the cross-sectional area S2. The size relationship of the cross-sectional areas is S3 > S2 > S1. That is, the cross-sectional area S3 of the concave-shaped cross section of the offset accommodating section 33 is larger than the cross-sectional areas (S1, S2) of the concave-shaped cross sections of the first linear accommodating section 31 and the second linear accommodating section 32.

[0045] (Connector accommodating sections 50A to 50C) The accommodation section 30 has a plurality of holding sections 61, 62, and 63 for holding the joint connector 170. The joint connector 170 is provided with a plurality of connector connection ports 170b, to which connectors of the routed wire harness 160 are connected. The joint connector 170 is configured to be attachable to and detachable from each of the plurality of holding sections 61, 62, and 63 (FIG. 6).

[0046] 6A and 6B are diagrams illustrating the structure of the connector receiving portion, in which Fig. 6A is a diagram illustrating a state in which the joint connector 170 is attached to the holding portion 61, and Fig. 6B is a cross-sectional view taken along the line AA.

[0047] As shown in FIG. 6(A), the holding portion 61 is formed with two pairs of grooves 61a, 61b that can be slid to engage with the engagement portion 170a formed in a convex shape on the upper part of the joint connector 170.

[0048] Retaining portion 62 has a structure similar to that of retaining portion 61, with two pairs of grooves 62a, 62b formed therein (FIG. 3B). Retaining portion 63 is provided with a pair of grooves 63a (FIG. 3B). Retaining portion 63 differs from retaining portions 61 and 62 in the number of grooves, but the other basic structure is similar to retaining portions 61 and 62. Here, the structure of the connector accommodating portion will be described using the structure of retaining portion 61 as an example.

[0049] The holding portion 61 has a first holding wall portion 61c, a second holding wall portion 61d, and a third holding wall portion 61e.

[0050] The first holding wall portion 61c is formed along the longitudinal direction of the accommodation portion 30 (first linear accommodation portion 31) in a direction (vertical direction) intersecting (substantially perpendicular to) the surface of the side wall portion 31c of the first linear accommodation portion 31.

[0051] The first holding wall 61c has a plurality of openings (openings 61f or openings 61g). The opening 61f (first opening) corresponds to the joint connector (first joint connector) attached to the groove 61a, and the opening 61g (second opening) corresponds to the joint connector (second joint connector) attached to the groove 61b. A wire harness can be routed to the joint connectors attached to the grooves 61a and 61b via the openings 61f and 61g. Providing the openings 61f and 61g improves the degree of freedom in routing. The number of openings is not limited to a plurality, and it is sufficient that at least one opening is formed in the first holding wall 61c.

[0052] The second retaining wall portion 61d is formed in a direction (front-rear direction) intersecting (substantially perpendicular to) the first retaining wall portion 61c. The wall surface of the second retaining wall portion 61d connected to the first retaining wall portion 61c is referred to as the first wall surface 61-1d, and the wall surface of the second retaining wall portion 61d not connected to the first retaining wall portion 61c is referred to as the second wall surface 61-2d (the surface opposite to 61-1d). Two pairs of grooves 62a, 62b engageable with the engaging portion 170a of the joint connector 170 are formed on the wall surface (second wall surface) of the second retaining wall portion 61d not connected to the first retaining wall portion 61c. By forming the first retaining wall portion 61c as a rib structure between the side wall portion 31c and the second retaining wall portion 61d, the rigidity of the retaining portion 61 for holding the joint connector 170 can be improved. The connector accommodating portion 50A is attached to the holding portion 61 and has a substantially L-shaped cross-sectional structure that accommodates the joint connector 170 in an area that covers the underside of the joint connector 170 and the side surface that intersects with the underside, and the connector accommodating portion 50A attached to the holding portion 61 with improved rigidity can be used as a handle.

[0053] The third holding wall 61e is formed so that its wall surface extending from the bottom surface 31a of the accommodation section 30 (first linear accommodation section 31) intersects with the first holding wall 61c and the second holding wall 61d. In addition, the third holding wall 61e can further improve the rigidity of the accommodation section 61, and the connector accommodation section 50A attached to the accommodation section 61 with improved rigidity can be used as a handle.

[0054] 6(B), the side wall 31c, the first holding wall 61c, and the second holding wall 61d of the first linear accommodating section 31 form a substantially H-shaped cross section in a cross-sectional view. By forming the first holding wall 61c as a rib structure between the side wall 31c and the second holding wall 61d, it is possible to increase the section modulus and the moment of inertia, and improve the rigidity of the holding section 61 that holds the joint connector 170.

[0055] The connector accommodating portion 50A accommodates the joint connector 170 in an area covering the underside of the joint connector 170 and the side surface intersecting the underside of the joint connector 170. The connector accommodating portion 50A has a substantially L-shaped cross-sectional structure formed so that a first accommodating wall portion 50-1A and a second accommodating wall portion 50-2A intersect (substantially perpendicularly), and the first accommodating wall portion 50-1A covers one side surface of the joint connector 170, and the second accommodating wall portion 50-2A covers the underside of the joint connector 170. The connector accommodating portion 50A accommodates and protects the joint connector 170, which is attached by engaging with the groove portions 61a, 61b, in an enclosed area covered by the first accommodating wall portion 50-1A and the second accommodating wall portion 50-2A. The external shape of the connector accommodating portion 50A, which has an approximately L-shaped cross-sectional structure, provides a structure suitable for grasping the side and underside of the approximately L-shaped cross-sectional structure when an assembly worker grasps the protector, making it possible to use the connector accommodating portion 50A as a handle.

[0056] Ribs 50-3A are formed at the longitudinal ends of the first and second accommodating walls 50-1A and 50-2A, and are bent upright from the wall surfaces of the respective walls. By forming the ribs 50-3A, the rigidity of the connector accommodating section 50A can be improved compared to a structure in which a flat plate member is bent.

[0057] The wall surfaces of the first and second accommodating walls 50-1A and 50-2A of the connector accommodating portion 50A and the rib 50-3A are connected to third retaining walls 61e formed on both longitudinal ends of the retaining portion 61, so that the connector accommodating portion 50A is detachably attached to the retaining portion 61. The rigidity of the retaining portion 61 is improved by the first retaining walls 61c formed as a ribbed structure, and the rigidity of the connector accommodating portion 50A is improved by the rib 50-3A. The retaining portion 61 and the connector accommodating portion 50A are each formed with a structure that improves rigidity, and the connector accommodating portion 50A attached to the retaining portion 61 with improved rigidity can be used as a handle.

[0058] This makes it possible to provide a front body structure in which the connector receiving section with a high rigidity structure can be used as a handle for the protector 20, without requiring an assembly worker to carefully hold the protector 20 or designing the protector 20 to increase its rigidity by increasing its overall plate thickness, thereby providing a front body structure in which the connector receiving section with a high rigidity structure can be used as a handle for the protector 20.

[0059] [Summary of the embodiment] Configuration 1. The vehicle body front structure of the above embodiment is a vehicle body front structure having a steering hanger beam 22 and a protector 20 that protects a wire harness routed along the steering hanger beam, The steering hanger beam 22 is a first hangar beam 2; a second hanger beam 3 joined to the first hanger beam 2 at an offset joint 19 with its central axis offset in the vertical direction of the vehicle body; The protector 20 is a first linear receiving portion 31 attached along the first hanger beam 2; a second linear receiving section 32 attached along the second hanger beam 3; an offset receiving portion 33 formed between the first linear receiving portion 31 and the second linear receiving portion 32 and attached along the offset joint 19; The offset accommodating portion 33 is formed such that a cross-sectional area S3 thereof is larger than the cross-sectional area S1 of the first linear accommodating portion 31 and the cross-sectional area S2 of the second linear accommodating portion 32.

[0060] According to configuration 1, by using a protector configured in a crank shape to correspond to the external shape of the offset steering hanger beam, it is possible to obtain the advantage of improving the placement efficiency of audio units, airbag units, etc., and to provide a front body structure that makes it easy to route wire harnesses.

[0061] Furthermore, by providing a larger space in the offset accommodating portion of the protector than the first linear accommodating portion and the second linear accommodating portion, excess length that may occur due to manufacturing tolerances when manufacturing the wire harness can be accommodated in the offset accommodating portion, thereby protecting excess length that cannot be determined at the time of design.

[0062] Configuration 2. The first linear accommodating section 31 is The recess has a cross-sectional shape made up of a flat bottom surface portion 31a and a first side wall portion 31b and a second side wall portion 31c standing upright from both longitudinal edge portions of the bottom surface portion 31a.

[0063] Configuration 3: An opening for branching the wire harness is formed in at least one of the first side wall portion 31b and the second side wall portion 31c of the first linear housing portion 31.

[0064] Configuration 4. The second linear accommodating section 32 is The recess has a cross-sectional shape that is made up of a flat bottom surface portion 32a and a first side wall portion 32b and a second side wall portion 32c that stand upright from both longitudinal edge portions of the bottom surface portion 32a.

[0065] Configuration 5: At least one of the first side wall portion 32b and the second side wall portion 32c of the second linear accommodating portion 32 is formed with an opening for branching the wire harness.

[0066] Configuration 6. The offset accommodating section 33 is A flat bottom surface portion 33a, a first offset wall portion 33b and a second offset wall portion 33c erected from the bottom surface portion 33a; The recessed cross-sectional shape is formed by a third offset wall portion 33d and a fourth offset wall portion 33e that are erected from the bottom surface portion 33a, A space formed between a lower end 133b of the first offset wall portion 33b in the vertical direction and an upper end 133c of the second offset wall portion 33c in the vertical direction is in communication with a space formed by the recessed cross-sectional shape of the first linear accommodating portion 31, The space formed between the vertical lower end 233d of the third offset wall portion 33d and the vertical upper end 233e of the fourth offset wall portion 33e is connected to the space formed by the recessed cross-sectional shape of the second linear accommodating portion 32.

[0067] According to the vehicle body front structures of configurations 2 to 6, the wire harness can be routed in accordance with the outer shape of the offset steering hanger beam. Also, according to the vehicle body front structures of configurations 3 and 5, the degree of freedom in routing the branching of the wire harness can be improved.

[0068] Configuration 7: The first linear accommodating portion 31, the offset accommodating portion 33 and the second linear accommodating portion 32 are engaged with lid portions (40A to 40D) that close the open ends of the respective recessed cross-sectional shapes.

[0069] According to the vehicle body front structure of configuration 7, the wire harness can be easily housed inside each housing portion in accordance with the outer shape of the offset steering hanger beam, and the housed wire harness can be protected.

[0070] The invention is not limited to the above-described embodiment, and various modifications and variations are possible within the scope of the gist of the invention. [Explanation of symbols]

[0071] 2: First hangar beam 3: Second hangar beam 20: Protector 22: Steering hanger beam 31: First linear storage section 32: Second linear storage section 33: Offset storage section

Claims

1. A vehicle body front structure having a steering hanger beam and a protector that protects a wire harness routed along the steering hanger beam, The steering hanger beam is a first hanger beam; and a second hanger beam joined at an offset joint with a central axis offset in the vertical direction of the vehicle body relative to the first hanger beam, The protector comprises: a first linear receptacle mounted along the first hanger beam; a second linear receptacle mounted along the second hanger beam; an offset receiving portion formed between the first linear receiving portion and the second linear receiving portion and attached along the offset joint; The offset accommodating portion has a cross-sectional area larger than the cross-sectional area of ​​the first linear accommodating portion and the cross-sectional area of ​​the second linear accommodating portion, The first linear receiving section is The container has a recessed cross-sectional shape that is configured by a flat bottom surface portion and first and second side wall portions that are erected from both longitudinal edge portions of the bottom surface portion, The second linear receiving section is The container has a recessed cross-sectional shape that is configured by a flat bottom surface portion and first and second side wall portions that are erected from both longitudinal edge portions of the bottom surface portion, The offset housing portion is A flat bottom surface portion, a first offset wall portion and a second offset wall portion erected from the bottom surface portion; a recess cross-sectional shape formed by a third offset wall portion and a fourth offset wall portion erected from the bottom surface portion, a space formed between a lower end of the first offset wall portion in the vertical direction and an upper end of the second offset wall portion in the vertical direction communicates with a space formed by a recessed cross-sectional shape of the first linear accommodating portion, a space formed between the vertical lower end of the third offset wall portion and the vertical upper end of the fourth offset wall portion communicates with a space formed by the recessed cross-sectional shape of the second linear accommodating portion.

2. 2. The vehicle body front structure according to claim 1, wherein an opening for branching the wire harness is formed in at least one of the first side wall portion and the second side wall portion of the first linear accommodating portion.

3. 2. The vehicle body front structure according to claim 1, wherein an opening for branching the wire harness is formed in at least one of the first side wall portion and the second side wall portion of the second linear accommodating portion.

4. 4. The vehicle front structure according to claim 1, wherein the first linear accommodating portion, the offset accommodating portion, and the second linear accommodating portion are engaged with lid portions that close open ends of the respective recessed cross-sectional shapes.

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