JP2016113055A - Vehicle front part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle front part structure which prevents or inhibits hindering of absorption of an impact force from a collision body when the impact force acts on a windshield glass.SOLUTION: A notch groove 44 is formed at the front side of a hole part 22 in a cowl louver 20. A lid member 50 is disposed in the notch groove 44. The lid member 50 is pushed by a wiper pivot shaft member 40 to move to the vehicle front side along the notch groove 44.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle front structure, and more particularly to a vehicle front structure in which a rear end portion of a cowl louver and a lower end portion of a windshield glass are connected.

  There is known a vehicle front structure in which a rear end portion of a cowl louver of a vehicle and a lower end portion of a windshield glass are connected via a molding (clip). As such a connection structure, for example, Patent Document 1 discloses a molding (clip) including a hook portion that opens to the vehicle upper side. One end of the molding is affixed to the rear surface of the lower end of the windshield glass (the surface on the vehicle interior side), and a hook projecting from the rear end of the cowl louver to the vehicle lower side is formed on the hook formed on the other end. It is inserted from the upper side.

Special table 2013-501672 gazette

  By the way, when an impact force from a collision body acts on the windshield glass, the impact force is normally absorbed by deformation of a cowl or the like disposed under the windshield glass. In the case of a vehicle having the above-described connection structure, when an impact force is applied to the windshield glass from the collision body, the windshield glass is bent, and the cowl louver connected through the molding is pulled to the rear of the vehicle and the rear of the vehicle Move to. At this time, the position of the hole for mounting the wiper pivot shaft formed in the cowl louver also moves backward, but the wiper pivot shaft is fixed to the body and protrudes from the hole formed in the cowl louver to the outside of the vehicle. Therefore, the front peripheral edge of the hole portion and the wiper pivot shaft strongly contact each other. For this reason, the deformation stroke of the cowl or the like is shortened, which may hinder proper absorption of the impact force from the collision body.

  In consideration of the above fact, the present invention absorbs the impact force from the collision body when the impact force acts on the windshield glass even if the rear end portion of the cowl louver and the lower end portion of the windshield glass are connected. It aims at providing the vehicle front part structure which can prevent or suppress being disturbed.

  A vehicle front portion structure according to the present invention as set forth in claim 1 includes a cowl louver disposed at a lower end portion of a windshield glass along a vehicle width direction, a lower end portion of the windshield glass, and a rear end portion of the cowl louver. A connecting member that connects the connecting member, a wiper pivot shaft member that protrudes upward from the hole for mounting the wiper pivot shaft formed in the cowl louver, and a vehicle front or rear of the hole portion, and is provided by the connecting member. Abutting when the front part of the wiper pivot shaft member abuts against the front edge part of the hole part when the front part of the wiper pivot shaft member is moved relative to the hole part in the vehicle front-rear direction by a pulling force to the cowl louver toward the rear of the vehicle. And a moving member that reduces the load.

  In the vehicle front structure according to the first aspect of the present invention, when an impact force is applied to the windshield glass from the collision body, the windshield glass is bent and the cowl louver connected via the connecting member is pulled rearward of the vehicle. And move to the rear of the vehicle. At this time, the peripheral portion of the hole for attaching the wiper pivot shaft formed in the cowl louver also moves rearward, but the moving member provided at the front or rear of the hole relative to the hole relative to the hole in the vehicle front-rear direction. Moving. And the contact load when the front part of a wiper pivot shaft member contact | abuts the front edge part of a hole is reduced by this relative movement. Thereby, the impact force from the collision body is transmitted to the cowl and absorbed.

  In the vehicle front portion structure according to the second aspect of the present invention, a notch groove having a longer dimension in the vehicle width direction than the wiper pivot shaft member is formed in the vehicle front of the hole portion toward the front end of the cowl louver. The moving member is a lid member that is disposed in the notch groove and is pushed by the wiper pivot shaft member and moves forward of the vehicle along the notch groove.

  In the vehicle front portion structure according to the second aspect of the present invention, a notch groove having a longer dimension in the vehicle width direction than the wiper pivot shaft member is formed in the vehicle front portion of the hole portion toward the front end of the cowl louver. As described above, when the impact force acts on the windshield glass from the collision body and the cowl louver moves to the rear of the vehicle, the lid member constituting the moving member is pushed by the wiper pivot shaft member to the front of the vehicle along the notch groove. Moving. According to the vehicle front portion structure of the second aspect, the contact load between the front portion of the wiper pivot shaft member and the front edge portion of the hole portion can be reduced with a simple configuration.

  According to a third aspect of the present invention, in the vehicle front portion structure, the moving member is constituted by a part of the cowl louver, and is bent so as to protrude outward from the general surface of the cowl louver to the vehicle rear side of the hole. It is characterized by being a bent convex part.

  In the vehicle front portion structure according to the third aspect of the present invention, a bent convex portion that is bent so as to protrude from the general surface of the cowl louver to the vehicle outer side is formed on the vehicle rear side of the hole portion as the moving member. As described above, when an impact force is applied to the windshield glass from the collision body and the cowl louver moves rearward of the vehicle, the bent convex portion is extended. Thereby, a bending convex part moves relatively with a hole, and the movement to the vehicle rear of a hole is suppressed. According to the vehicle front portion structure of the third aspect, the contact load between the front portion of the wiper pivot shaft member and the front edge portion of the hole portion can be reduced with a simple configuration.

  According to a fourth aspect of the present invention, the vehicle front part structure is characterized in that the hole is a long hole elongated in the vehicle front-rear direction.

  In the vehicle front structure according to the fourth aspect of the present invention, since the hole is a long hole, a relatively large gap may be formed between the front of the wiper pivot shaft member and the front edge of the hole. it can. Therefore, as described above, even if the impact force acts on the windshield glass from the collision body and the cowl louver moves to the rear of the vehicle, the wiper pivot shaft member does not easily hit the hole.

  According to the vehicle front structure according to the first aspect, when the impact force acts on the windshield glass, the absorption of the impact force of the collision body can be prevented or suppressed.

  According to the vehicle front structure according to the second and third aspects, the contact load between the front portion of the wiper pivot shaft member and the front edge portion of the hole portion can be reduced with a simple configuration.

  According to the vehicle front structure according to the fourth aspect, when an impact force acts on the windshield glass, it is possible to prevent or suppress the absorption of the impact force of the collision body more effectively.

It is a perspective view shown in the state where a vehicle front part structure concerning a 1st embodiment was partially fractured. It is sectional drawing of the AA line of FIG. 1 in normal time. It is a principal part expansion perspective view shown in the state which removed the lid member of the vehicle front part structure concerning a 1st embodiment. It is sectional drawing of the AA line of FIG. 1 when a colliding body collides. It is explanatory drawing which shows operation | movement (A)-(C) of a hole, a wiper pivot shaft member, and a cover member when a collision body collides. It is a top view which shows the modification of the cover member of 1st Embodiment. It is a principal part expansion perspective view shown in the state which removed the cover member of the vehicle front part structure concerning 2nd Embodiment. It is a perspective view shown in the state where a vehicle front part structure concerning a 3rd embodiment was partially fractured. It is sectional drawing of the BB line of FIG. 8 in the normal time. It is sectional drawing of the BB line of FIG. 8 when a colliding body collides. It is a perspective view which shows the modification of the hole of 3rd Embodiment.

[First Embodiment]

  Hereinafter, with reference to FIGS. 1-6, 1st Embodiment of the vehicle front part structure which concerns on this invention is described. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

  FIG. 1 shows the vicinity of a boundary between a vehicle cowl louver 20 and a windshield glass 16 to which a vehicle front structure 10 according to the present invention is applied. 2 shows a cross-sectional view taken along line AA of FIG. In FIG. 1, a rear end portion of the hood 12 described later is partially cut away.

  As shown in FIG. 1 and FIG. 2, a windshield glass 16 is provided in front of a cabin (cabinet) 18, and a hood 12 that covers the engine room 14 is provided above the engine room 14 (see FIG. 2). Is provided. A cowl louver 20 is disposed between the rear end of the hood 12 and the lower end of the windshield glass 16 along the vehicle width direction. The cowl louver 20 is provided with holes 22 for mounting the wiper pivot shaft at two locations, and wiper pivot shaft members 40 project from the respective holes 22. Details of the cowl louver 20 and the wiper pivot shaft member 40 will be described later.

  As shown in FIG. 2, a cowl 24 is disposed below the windshield glass 16 and the cowl louver 20. The cowl 24 includes a cowl upper panel 24A, a cowl lower panel 24B, and a cowl inner panel 24C. The upper end of the cowl upper panel 24A is bonded to the lower surface of the lower portion of the windshield glass 16 via an adhesive 25, and the other end is joined to the upper end of the cowl lower panel 24B. The lower end portion of the cowl lower panel 24B is joined to the rear end portion of the cowl inner panel 24C (the joint portion is not shown). The front side of the cowl inner panel 24 </ b> C is joined to the cowl louver 20.

  The cowl louver 20 has a long plate shape in the vehicle width direction, and includes a louver main body portion 20A, a front connecting portion 20B, and a front side portion 20C. The louver body 20 </ b> A has an upper surface that is flush with the outer surface of the windshield glass 16. The front connecting portion 20B is bent downward from the front end of the louver body portion 20A. In the front side portion 20C, an engagement convex portion 20D is formed on the lower surface of the rear end portion of the front connecting portion 20B louver main body portion 20A. The engaging convex portion 20D protrudes downward from the lower surface of the louver main body portion 20A and extends in the vehicle width direction.

  A hole 22 is formed in the louver body 20A. The hole 22 is for mounting the wiper pivot shaft member 40, and is formed at two locations with an interval in the vehicle width direction. Since the hole 22, the configuration of the cowl louver 20 in the vicinity thereof, and the wiper pivot shaft member 40 are the same in two places, only one of them will be described.

  A wiper pivot shaft member 40 projects from the hole 22. The wiper pivot shaft member 40 includes a cylindrical bearing portion 40A and a pivot shaft 40B that is rotatably supported by the bearing portion 40A. A proximal end portion of a wiper arm 40C disposed along the windshield glass 16 is attached to the pivot shaft 40B. The bearing portion 40 </ b> A is supported by the support portion 42. The support portion 42 is connected to the cowl inner panel 24C at a position (not shown).

  As shown in FIG. 3, a cutout groove 44 is formed in the cowl louver 20 in front of the hole portion 22. The cutout groove 44 has a groove width wider than the outer diameter of the wiper pivot shaft member 40 and is formed continuously with the hole 22. The notch groove 44 is formed from the hole portion 22 to the front end of the louver main body portion 20A and further to the front connection portion 20B. A mounting groove 46 is formed on the outer side of the notch groove 44 in the vehicle width direction so as to be separated from the notch groove 44. The mounting groove 46 extends rearward from the front connecting portion 20B. The groove width of the mounting groove 46 is set wider than the thickness of a bent portion 56B described later.

  A lid member 50 is disposed in the cutout groove 44. As shown in FIG. 3, the lid member 50 has an upper lid portion 52 that covers the upper portion of the notch groove 44, and a front lid portion 54 that bends downward from the front end of the upper lid portion 52 and covers the front of the notch groove 44. ing. The upper lid 52 has a concave rear end side and forms a front edge 53 of the hole 22. The length of the upper lid portion 52 in the vehicle width direction is longer than the groove width of the notch groove 44, and both ends of the upper lid portion 52 in the vehicle width direction are disposed on the louver main body portion 20A. The length of the front lid portion 54 in the vehicle width direction is also longer than the groove width of the notch groove 44, and both ends of the front lid portion 54 in the vehicle width direction are disposed along the front surface of the front connecting portion 20B.

  Attachment portions 56 are provided at both ends of the upper lid portion 52 in the vehicle width direction. The attachment portion 56 has an extending portion 56A that extends from both ends in the vehicle width direction of the upper lid portion 52 to the outside in the vehicle width direction, and a bent portion 56B that bends downward from the tip of the extending portion 56A. A convex portion 58 is formed outside the bent portion 56B in the vehicle width direction. The bent portion 56B is inserted into the mounting groove 46. The convex portion 58 is in pressure contact with the wall surface of the mounting groove 46.

  As shown in FIG. 2, a connecting member 30 is disposed between the rear end portion of the cowl louver 20 and the lower end portion of the windshield glass 16. The connecting member 30 has an engagement recess 32 that inserts and holds the engagement protrusion 20 </ b> D, and a joint 34 that extends rearward from the rear end of the engagement recess 32. The engaging convex portion 20 </ b> D is inserted into the engaging concave portion 32, which is joined to the lower surface of the front end of the windshield glass 16. The rear end portion of the cowl louver 20 and the lower end portion of the windshield glass 16 are connected via a connecting member 30.

Next, the operation and effect of this embodiment will be described.
When a collision object 60 such as a pedestrian collides with the windshield glass 16, as shown in FIG. 4, the windshield glass 16 bends toward the passenger compartment 18 side, and an impact load is received by the cowl upper panel 24A and the cowl lower panel 24B. It is done. On the other hand, the cowl louver 20 connected via the connecting member 30 is pulled rearward of the vehicle. The position of the hole 22 formed in the cowl louver 20 moves rearward with respect to the wiper pivot shaft member 40. By this movement, the wiper pivot shaft member 40 separated from the lid member 50 (see FIG. 5A) hits the rear end side of the lid member 50 (the front edge 53 of the hole 22) (FIG. 5B )reference). When a force pressing the lid member 50 forward from the wiper pivot shaft member 40 acts, the lid member 50 is notched against the pressure contact force between the convex portion 58 of the lid member 50 and the wall surface of the mounting groove 46. Along the groove 44, the vehicle moves forward with respect to the hole portion 22, and the bent portion 56 </ b> B comes off the mounting groove 46 (see FIG. 5C). Therefore, the contact load between the wiper pivot shaft member 40 and the front edge portion of the hole portion 22, that is, the rear edge portion of the lid member 50 is reduced. Thereby, the impact force from the collision body 60 is smoothly transmitted to the cowl upper panel 24A and the cowl lower panel 24B. The impact force is absorbed by the deformation of the cowl upper panel 24A and the cowl lower panel 24B.

  According to the vehicle front structure according to the present embodiment, the contact load between the wiper pivot shaft member 40 and the front edge 53 of the hole 22 is reduced, so that the impact force from the collision body can be reduced by the cowl upper panel 24A and It can be appropriately absorbed by the cowl lower panel 24B.

  In the present embodiment, the rear end of the lid member 50 is arranged along the front side of the wiper pivot shaft member 40. However, as shown in FIG. 50A may be formed. By forming the cutout portion 50A, the gap between the rear end of the lid member 50 and the front side of the wiper pivot shaft member 40 can be widened, and the hole portion 22 can be elongated in the vehicle front-rear direction. Thus, by making the hole portion 22 into a long hole, a relatively large gap can be formed between the front portion of the wiper pivot shaft member 40 and the front edge portion of the hole portion. Thus, as described above, even if the impact load acts on the windshield glass 16 from the collision body 60 and the cowl louver 20 moves to the rear of the vehicle, the wiper pivot shaft member 40 does not easily hit the hole 22. Accordingly, it is possible to prevent or suppress the absorption of the impact load of the collision body 60 more effectively.

  [Second Embodiment]

  Next, a second embodiment of the vehicle front structure according to the present invention will be described. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the present embodiment, the cutout groove of the cowl louver and the configuration of the lid member are different from those of the first embodiment, and other parts are the same as those of the first embodiment.

  As shown in FIG. 7, a notch groove 64 is formed in the cowl louver 20 of the present embodiment. The notch groove 64 has a groove width wider than the outer diameter of the wiper pivot shaft member 40 and is formed continuously with the hole 22. The notch groove 64 is formed from the hole portion 22 to the front end of the louver main body portion 20A and further to the front connection portion 20B. A wide portion 64 </ b> A having an increased groove width is formed at the front end portion of the notch groove 64. A contact portion 64B is formed behind the wide portion 64A.

  A lid member 66 is disposed in the notch groove 64. The lid member 66 has a plate shape that is thicker than the cowl louver 20. The length of the lid member 66 in the vehicle width direction is longer than the groove width of the notch groove 64, and attachment grooves 68 are formed on both sides of the lid member 66 in the vehicle width direction. The width and depth of the mounting groove 68 are set so that both ends of the cutout groove 64 in the vehicle width direction (hereinafter referred to as “end edge 64C”) can be sandwiched. Further, the front side end portion 66 </ b> A of the mounting groove 68 is disposed in front (rear side) of the front end of the lid member 66. The lid member 66 is attached to the notch groove 64 by sandwiching the end edge 64C of the notch groove 64 from the front and sliding backward until the front end part 66A abuts against the abutment part 64B. In the attached state, the rear edge of the lid member 66 constitutes the front edge 53 of the hole 22.

  Also in the present embodiment, when the collision body 60 collides with the windshield glass 16 as in the first embodiment, the cowl louver 20 is pulled rearward of the vehicle, but the lid member 66 is pushed by the wiper pivot shaft member 40. Then, the vehicle moves forward along the notch groove 64. Therefore, the contact load between the wiper pivot shaft member 40 and the front edge 53 (the rear edge of the lid member 66) of the hole 22 is reduced. Thereby, the impact force from the collision body 60 is smoothly transmitted to and absorbed by the cowl upper panel 24A and the cowl lower panel 24B.

  According to the vehicle front structure according to the present embodiment, the contact load between the wiper pivot shaft member 40 and the front edge 53 of the hole 22 is reduced, so that the impact force from the collision body can be reduced by the cowl upper panel 24A and It can be appropriately absorbed by the cowl lower panel 24B.

  [Third Embodiment]

  Next, a third embodiment of the vehicle front structure according to the present invention will be described. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the present embodiment, the configuration of the cowl louver is different from that of the first embodiment, and other parts are the same as those of the first embodiment.

  As shown in FIG. 8, the cowl louver 70 of the present embodiment has a long plate shape in the vehicle width direction, and includes a louver main body portion 70 </ b> A, a front connection portion 70 </ b> B, and a front side portion 70 </ b> C. Only the configuration of the louver main body portion 70A is different from the louver main body portion 20A of the first embodiment, and the configurations of the front connection portion 70B and the front side portion 70C are the same as those of the front connection portion 20B and the front side portion 20C of the first embodiment.

  The louver body 70 </ b> A has an upper surface that is flush with the outer surface of the windshield glass 16. An engaging convex portion 70D similar to the engaging convex portion 20D of the first embodiment is formed on the lower surface of the rear end portion of the louver main body portion 20A (see FIG. 9).

  A hole 72 is formed in the louver main body 70A. The holes 72 are formed at two locations at intervals in the vehicle width direction. The wiper pivot shaft member 40 protrudes from the hole 72.

  A bent convex portion 74 is formed between the hole 72 and the engaging convex portion 70D. As shown in FIG. 9, the bent convex portion 74 has an inverted U-shaped cross section and protrudes upward from the general surface of the louver main body portion 70A. The extension length from the front base end portion 74A on the vehicle front side of the bent convex portion 74 to the rear base end portion 74B on the vehicle rear side is assumed when the collision body 60 collides with the windshield glass 16. It is set in consideration of the amount of bending of the windshield glass 16. The bent convex portion 74 is elongated in the vehicle width direction, one end is disposed on the outer end portion on the side where the wiper pivot shaft member 40 in the vehicle width direction is provided, and the other end is on the center side in the vehicle width direction. The wiper pivot shaft member 40 is disposed at a position reaching the vehicle inner side. It is preferable that the bent convex portion 74 has a length of 200 mm or more with respect to one hole 72 from a position corresponding to the center of the hole 72 to both sides in the vehicle width direction.

  Next, the operation and effect of this embodiment will be described.

  When a collision object 60 such as a pedestrian collides with the windshield glass 16, as shown in FIG. 10, the windshield glass 16 bends toward the passenger compartment 18, and an impact load is received by the cowl upper panel 24A and the cowl lower panel 24B. It is done. On the other hand, the cowl louver 20 connected via the connecting member 30 is pulled rearward of the vehicle. The position of the hole 72 formed in the cowl louver 70 moves rearward with respect to the wiper pivot shaft member 40.

  By this movement, the wiper pivot shaft member 40 hits the front edge portion 53 of the hole 72, and a force against the above-described pulling acts from the wiper pivot shaft member 40 to the cowl louver 70. Then, the bent convex portion 74 is extended, and the contact load between the wiper pivot shaft member 40 and the front edge portion of the hole portion 72 is reduced. Thereby, the impact force from the collision body 60 is reduced by the extension of the bending projection 74, and is smoothly transmitted to and absorbed by the cowl upper panel 24A and the cowl lower panel 24B.

  According to the vehicle front structure according to the present embodiment, the collision load between the wiper pivot shaft member 40 and the front edge portion 53 of the hole 72 is reduced, so that the impact force from the collision body is generated by the cowl upper panel 24A and the cowl. It can absorb appropriately by the lower panel 24B.

  In the present embodiment, only one bent convex portion 74 is formed, but one for each hole 72, that is, two may be formed.

  Also in this embodiment, the hole 72 may be a long hole 72L that is long in the vehicle front-rear direction, as shown in FIG. In this way, by forming the hole portion as the long hole 72L, a relatively large gap can be formed between the front portion of the wiper pivot shaft member 40 and the front edge portion of the hole portion. Thus, as described above, even if the impact load acts on the windshield glass 16 from the collision body 60 and the cowl louver 20 moves to the rear of the vehicle, the wiper pivot shaft member 40 does not easily hit the hole 22. Accordingly, it is possible to prevent or suppress the absorption of the impact load of the collision body 60 more effectively.

  Moreover, the bending convex part 74 of this embodiment can also be formed in the vehicle rear of the hole 22 of 1st Embodiment, and can also be set as the structure used together with the notch groove 44 and the cover member 50. FIG.

16 Windshield glass 18 Cabin 20 Cowl louver 22 Hole 30 Connecting member 40 Wiper pivot shaft member 44 Notch groove 50 Lid member 53 Front edge 64 Notch groove 66 Lid member 70 Cowl louver 72 Hole 74 Bent convex

Claims (4)

A cowl louver disposed along the vehicle width direction at the lower end of the windshield glass;
A connecting member that connects a lower end of the windshield glass and a rear end of the cowl louver;
A wiper pivot shaft member projecting upward from the hole for mounting the wiper pivot shaft formed in the cowl louver;
The front portion of the wiper pivot shaft member is provided in front or rear of the hole portion, and is relatively moved in the vehicle front-rear direction with respect to the hole portion by the pulling force of the connecting member toward the cowl louver. A moving member that reduces the abutting load when abuts against the front edge of the hole;
Vehicle front structure with   A notch groove that is longer in the vehicle width direction than the wiper pivot shaft member is formed in front of the cowl louver at the front end of the cowl louver, and the moving member is disposed in the notch groove. The vehicle front portion structure according to claim 1, wherein the vehicle front portion structure is a lid member that is pushed by the slider and moves forward along the notch groove.   The moving member is a bent convex portion that is formed by a part of the cowl louver and is bent so as to protrude from the general surface of the cowl louver to the vehicle outer side behind the hole. The vehicle front structure according to claim 1 or 2.   The vehicle front part structure according to any one of claims 1 to 3, wherein the hole is a long hole elongated in a vehicle front-rear direction.

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