JP2005112264A - Cowl structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase a deforming stroke of a wiper pivot to the lower side of a car body without increasing a cowl cross-section. <P>SOLUTION: A circular hole 50 through which a lower part 16C of the wiper pivot 16 can pass is formed on a bottom part 20A of a cowl 20 to be below the wiper pivot 16, and this hole 50 is closed by a circular sheet 52. An outer peripheral part 52A of the sheet 52 is adhered to the upper surface side of the bottom surface 20A of the cowl 20, and the sheet 52 is devised to easily deform downward in the case when the wiper pivot 16 moves downward and the sheet 52 is pressurized by the wiper pivot 16. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicular cowl structure, and more particularly, to a vehicular cowl structure that is applied to a vehicle such as an automobile and protects a collision object at the time of a collision.

Conventionally, in a vehicular cowl structure that is applied to a vehicle such as an automobile and protects a collision body at the time of a collision, a wiper pipe holder is rotatably supported by a rotation support portion, and the wiper pipette is predetermined in the axial direction of the wiper pipette. A configuration is known in which when a load greater than the value is applied, the nut of the rotation allowing portion falls off and the wiper pipette is released to the lower side in the cross section of the cowl (see, for example, Patent Document 1).
JP 2000-326829 A

  However, in the vehicle cowl structure of Patent Document 1, it is necessary to secure a space for moving the wiper pipette in the cowl cross section. As a result, the cross section of the cowl becomes large, and design constraints such as the layout of parts in the engine room are imposed.

  In view of the above-described facts, the present invention has an object to provide a vehicular cowl structure capable of expanding the deformation stroke of the wiper pipot to the vehicle body lower side without increasing the cross section of the cowl.

A cowl structure for a vehicle according to a first aspect of the present invention includes a wiper pipette disposed in a cowl cross section,
A wiper pipe support means for supporting the wiper pipe pot so that the wiper pipe pot can be moved downward when a load of a predetermined value or more acts on the wiper pipe pot toward the vehicle body lower side;
Deformation means that is formed in the cowl portion below the wiper pipe pot, and can be dropped down or easily deformed when pressed against the wiper pipe pot;
It is characterized by having.

  Accordingly, when a load of a predetermined value or more is applied to the wiper pipe pot toward the lower side of the vehicle body, the wiper pipe pot moves downward by the wiper pipe pot supporting means for supporting the wiper pipe pot. At this time, when the wiper pipette abuts against the deformation means formed in the cowl portion below the wiper pipepot and the wiper pipepot presses the deformation means, the deformation means falls downward or easily deforms. As a result, the deformation stroke of the wiper pipette to the vehicle body lower side can be expanded without increasing the cowl cross section.

  According to a second aspect of the present invention, in the vehicle cowl structure according to the first aspect, the deformation means is a closing member that closes a hole formed in a bottom portion of the cowl.

  Accordingly, when a load of a predetermined value or more is applied to the wiper pipe pot toward the lower side of the vehicle body, the wiper pipe pot is moved downward by the wiper pipe pot supporting means for supporting the wiper pipe pot. At this time, when the wiper pipe pot comes into contact with a closing member that closes a hole formed in the bottom portion of the cowl that is below the wiper pipe pot, and the wiper pipe pot presses the closing member, the closing member is dropped downward or easily deformed. As a result, the deformation stroke of the wiper pipette to the vehicle body lower side can be expanded without increasing the cowl cross section.

  The cowl structure for a vehicle according to the first aspect of the present invention includes a wiper pipette disposed in the cowl cross section, and the wiper pipepot is moved downward when a load larger than a predetermined value acts on the wiper pipepot toward the vehicle body lower side. A wiper pipe pot supporting means that is movably supported, and a deformation means that is formed in a cowl portion below the wiper pipe pot and can be dropped or easily deformed when pressed against the wiper pipe pot. It has an excellent effect that the deformation stroke of the wiper pipette to the vehicle body lower side can be expanded without increasing the cowl cross section.

  According to a second aspect of the present invention, in the vehicular cowl structure according to the first aspect, the deformation means is a closing member that closes a hole formed in the bottom portion of the cowl, so that the cross section of the cowl is not enlarged. It has an excellent effect that the deformation stroke of the wiper pipe pot on the vehicle body lower side can be enlarged.

  A vehicle cowl structure according to an embodiment of the present invention will be described with reference to FIGS.

  In the figure, the arrow UP indicates the vehicle body upward direction, and the arrow FR in the figure indicates the vehicle body front direction.

  As shown in FIG. 4, in the present embodiment, a hood 12 is disposed on the upper surface of the front portion of the vehicle body 10 of the automobile, and a wiper 14 is disposed in the vicinity of the rear edge 12 </ b> A of the hood 12. .

  As shown in FIG. 1, the cowl 20 of the vehicle body 10 is disposed along the vehicle width direction, and the cross-sectional shape of the cowl 20 is a hat shape with the opening directed upward of the vehicle body.

  The cowl 20 includes a cowl front 22 that constitutes the front portion of the cowl 20, a cowl outer panel 24 and a cowl inner panel 26 that constitute the rear portion of the cowl 20, and is formed by the cowl front 22 and the cowl outer panel 24. The wiper pipe 16 is disposed inside the cowl section 28. Further, a closed cross section 30 constituted by a cowl outer panel 24 and a cowl inner panel 26 is formed along the vehicle width direction on the vehicle body rear side of the cowl cross section 28.

  A wiper pipette support bracket 34 is fixed to the upper portion of the vertical wall portion 24A of the cowl outer panel 24 constituting the rear wall portion of the cowl section 28. The wiper pot support bracket 34 has an L-shaped cross section, and the vertical wall portion 34A is welded to the upper portion of the vertical wall portion 24A of the cowl outer panel 24. Further, a mounting flange 16A as a wiper pipe pot support means is formed on the outer periphery of the wiper pipe pot 16, and the rear end portion 16B of the mounting flange 16A of the wiper pipe pot 16 is formed on the upper surface of the horizontal wall section 34B of the wiper pipe pot support bracket 34. Are combined.

  A weakened portion 38 is formed by a notch or the like in the middle portion in the front-rear direction of the mounting flange 16 </ b> A of the wiper pipe pot 16. The fragile portion 38 is broken when a load of a predetermined value or more is applied to the wiper pot 16 in the axial direction of the wiper cup 16 from the upper side of the vehicle body to the lower side of the vehicle body (the direction of arrow A in FIG. 1). It has become.

  The mounting flange 16A of the wiper pipe pot 16 is coupled to the upper portion of the vertical wall portion 22A of the cowl front 22 via another wiper pipe pot support bracket 40 at a position separated from the wiper pipe pot support bracket 34 along the vehicle width direction. Has been.

  The vicinity 44B of the lower end edge 44A of the windshield glass 44 is fixed to the upper wall portion 24B of the cowl outer panel 24 by an adhesive 42, and the rear end of the cowl louver 46 is attached to the lower end edge 44A of the windshield glass 44. The edge 46A is locked. Further, the vicinity 46C of the front end edge portion 46B of the cowl louver 46 is fixed to the upper wall portion 22B of the cowl front 22 by an adhesive 48, and a hood seal rubber 48 is provided on the upper surface side of the front end edge portion 46B of the cowl louver 46. The hood 12 is in contact therewith.

  As shown in FIG. 3, a circular hole 50 through which the lower portion 16 </ b> C of the wiper pipe 16 can pass is formed in the bottom 20 </ b> A of the cowl 20 below the wiper pipe 16. The hole 50 is closed by a circular sheet 52 as a closing member so that rainwater does not leak from the hole 50. The sheet 52 is made of elastically deformable rubber, resin, or the like, and the outer peripheral portion 52A is bonded to the upper surface side of the bottom portion 20A of the cowl 20.

  Therefore, as shown in FIG. 2, when the wiper pipe 16 moves downward and the sheet 52 is pressed by the wiper pipe 16, the sheet 52 is easily deformed downward (in the direction of arrow B in FIG. 2). It is like that.

  Next, the operation of this embodiment will be described.

  In this embodiment, as shown in FIG. 1, the collision body K abuts against the wiper pipe 16 from above the vehicle body, and the wiper pipe 16 contacts the wiper pipe 16 in the axial direction of the wiper pipe 16 (the direction of arrow A in FIG. 1). When a load is applied, the fragile portion 38 formed on the mounting flange 16A of the wiper pipe pot 16 is broken.

  As a result, the wiper pot 16 moves downward as shown in FIG. At this time, when the wiper pipe 16 abuts against the sheet 52 closing the hole 50 formed in the bottom 20A of the cowl 20 below the wiper pipe 16, and the wiper pipe 16 presses the sheet 52, the sheet 52 moves downward (see FIG. It easily deforms in the direction of arrow B in FIG. For this reason, in this embodiment, the deformation stroke of the wiper pipe 16 toward the vehicle body lower side can be expanded without increasing the cowl section 28 and without increasing the depth of the cowl section 28 in particular.

  Therefore, the relationship between the acceleration G and the stroke S received by the collision body K in contact with the wiper pipe pot 16 of the present embodiment is as shown by the acceleration characteristic G shown by the solid line in FIG. Compared to the acceleration characteristic G1 shown by the broken line in FIG. 5 of the conventional cowl structure of the vehicle that does not form the structure, the secondary peak P2 generated after the primary peak P1 can be eliminated, and the wiper pipe pot 16 below the vehicle body The deformation stroke S to the side can be enlarged.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the above embodiment, the sheet 52 is made of rubber, resin, or the like that is easily elastically deformed, and the sheet 52 is bonded to the upper surface side of the bottom portion 20A of the cowl 20, but instead, the sheet 52 is easily formed. The sheet 52 may be bonded to the lower surface side of the bottom portion 20A of the cowl 20 and the sheet 52 may drop downward when the wiper pipette 16 presses the sheet 52.

  Further, as shown in FIGS. 6 and 7, a grommet 60 as a closing member is disposed in a hole 50 through which a lower portion 16C of the wiper pipe 16 formed on the bottom 20A of the cowl 20 below the wiper pipe 16 can pass. When the wiper pipe pot 16 presses the grommet 60, the grommet 60 may be dropped downward.

  Moreover, in the said embodiment, although the weak part 38 was formed by 16 notches etc. in the attachment flange 16A of the wiper pipe pot 16, it replaces with this as the structure which formed the weak part 38 by the notch etc. in the wiper pipe pot bracket 34 side. Also good.

  In the above embodiment, the circular hole 50 through which the lower part 16C of the wiper pipe 16 can pass is formed in the bottom 20A of the cowl 20 below the wiper pipe 16, but the shape of the hole 50 is not limited to a circle.

FIG. 5 is an enlarged cross-sectional view taken along line 1-1 of FIG. It is a sectional side view which shows the deformation | transformation state of the cowl structure for vehicles which concerns on one Embodiment of this invention. 1 is a cross-sectional perspective view of a vehicular cowl structure according to an embodiment of the present invention as seen from the obliquely rear side of a vehicle body. It is the perspective view seen from the vehicle body diagonally front which shows the vehicle body front part to which the cowl structure for vehicles concerning one embodiment of the present invention is applied. It is a graph which shows the relationship between the acceleration and the stroke which the collision body receives in the cowl structure for vehicles concerning one embodiment of the present invention. It is sectional drawing corresponding to FIG. 1 which shows the cowl structure for vehicles which concerns on other embodiment of this invention. It is the cross-sectional perspective view seen from the vehicle body diagonally back which shows the cowl structure for vehicles concerning other embodiments of the present invention.

Explanation of symbols

12 Hood 14 Wiper 16 Wiper Pipot 16A Wiper Pipot Mounting Flange (Wiper Pipot Supporting Means)
20 cowl 20A cowl bottom 28 cowl cross section 34 wiper pipot support bracket 38 fragile part 50 hole 52 sheet (deformation means, closing member)
60 Grommet (deformation means, closing member)

Claims (2)

A wiper pipet arranged in the cowl cross section;
Wiper pivot support means for supporting the wire pivot in a downwardly movable manner when a load of a predetermined value or more is applied to the wire pivot in a downward direction of the vehicle body;
Deformation means that is formed in the cowl portion below the wiper pipe pot, and can be dropped down or easily deformed when pressed against the wiper pipe pot;
A vehicular cowl structure characterized by comprising:   The vehicular cowl structure according to claim 1, wherein the deforming means is a closing member that closes a hole formed in a bottom portion of the cowl.

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