JP4101818B2 - Windshield lower end support structure - Google Patents

Description

  The present invention relates to a windshield lower end support structure for supporting a lower end of a windshield of an automobile.

  Generally, a windshield (front glass) of an automobile is supported by a windshield lower panel. As a conventional windshield lower end support structure, a structure in which the lower end of the windshield is supported in the vicinity of the front edge portion of the windshield lower panel is known. The windshield lower panel requires sufficient rigidity as a support for the instrument panel, and has an important role in characteristics such as sound vibration characteristics and vehicle handling.

  Furthermore, a windshield lower end support structure that sufficiently absorbs this impact force and protects the pedestrian when the pedestrian jumped up to the hood collides with the lower end portion of the windshield during a frontal collision with a pedestrian is desired. ing.

For example, in Japanese Patent Application Laid-Open No. 2001-80543, the thin portion is appropriately deformed when a pedestrian or the like collides with the wiper rotation shaft portion by making the attachment portion of the wiper rotation shaft thin and easy to deform. A vehicle front body structure for absorbing the impact force is disclosed.
JP 2001-80543 A JP 2004-34841 A JP 2004-155351 A JP 2004-262290 A

  In the conventional structure in which the lower end of the windshield is supported near the front edge of the windshield lower panel, the windshield lower panel has a weak support rigidity in the design where the center of the windshield projects to the front. Since the shield is supported, it is difficult to satisfy the noise and vibration performance.

  Furthermore, the cabin side of the cowl top is supported by the front end of the windshield lower panel, but the conventional windshield lower end support structure makes it difficult for the windshield lower panel to be deformed. When a person collided with the cowl top, it was difficult to absorb the impact force sufficiently.

  Further, in the front body structure of a vehicle described in Patent Document 1, although the protection performance of a pedestrian or the like can be sufficiently secured, there is a problem that the rigidity of the thin wall portion is reduced and the body vibration is easily transmitted to the vehicle interior. .

  This invention is made | formed in view of such a point, The place made into the objective is to provide the windshield lower end support structure which made it compatible with pedestrian protection and rigidity.

According to the present invention, there is a windshield lower end support structure for supporting the lower end of a windshield of an automobile, wherein the windshield lower panel is bent into a general shape with a front portion and a rigid rear portion, and the shape of the windshield lower panel is The front portion of the windshield and the lower end of the windshield are bonded and fixed , and the front side of the windshield lower panel is engaged with the cabin side of the cowl top that is disposed so that the upper surface is substantially flush with the hood. The rear portion of the vehicle body in the width direction center portion is formed in a crushed shape protruding forward, the lower end of the rear portion is joined, and the dashboard upper body A cross member welded to form a closed cross section in the width direction, and a lower end welded to the cross member; Comprising by a bracket against was cracking from the engine room side shaped portion, and a dashboard upper lid the base end to the dashboard upper supports the engine compartment side of the cowl top at its tip is fixed, Windshield lower end support structure characterized in that, when a pedestrian collides with the cowl top, the windshield lower panel is deformed downward on the front side from the adhesive fixing portion to absorb impact force at the time of collision. Is provided.

According to the present invention, when the pedestrian collides with the cowl top, the front part of the windshield lower panel can be deformed to absorb the impact of the collision, so that the pedestrian can be protected during the collision.
In addition, the rear part of the windshield lower panel is formed in a crushed shape in the vicinity of the center in the vehicle width direction, and the bracket fixedly supported by the cross beam is applied to the crushed part from the engine room side. Rigidity can be ensured and sufficient noise and vibration performance can be achieved.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the present specification, “front”, “rear”, “left”, “right”, “upper”, and “lower” follow the direction seen from the driver.

  FIG. 1 is a perspective view of a vehicle equipped with a windshield lower end support structure according to the present invention as seen from the front. In the engine room covered with a hood (hood) 2, an engine and a transmission are located at a position indicated by reference numeral 4. It is installed. A cowl top for taking outside air into the passenger compartment is divided into a central panel 8, a left side panel 10, and a right side panel 12.

  A black ceramic film 15 is attached to the lower part of the windshield (front glass) 14. Reference numeral 16 is a roof, 18 is a wiper arm, 20 is a front grille, 22 is a headlight, and 24 is a front bumper.

  A pair of damper housings (strut towers) 26 for connecting and supporting dampers (struts) of the front suspension are disposed in the engine room.

  FIG. 2 is a schematic side view of FIG. 1, and the upper surface of the central panel 8 of the cowl top 6 is disposed so as to be substantially flush with the bonnet 2.

  FIG. 3 is a cross-sectional view taken along line AA in FIG. 1 and shows a windshield lower end support structure according to an embodiment of the present invention. Reference numeral 25 denotes a dashboard upper assembly, which is configured as shown in FIG.

  The dashboard upper assembly 25 separates the vehicle compartment and the engine compartment of the automobile. In FIG. 4, the lower side of the dashboard upper assembly 25 is the engine compartment side, and the upper side is the compartment side.

  The dashboard upper assembly 25 is spot welded to the dashboard upper 28 extending in the vehicle body width direction so that the left and right ends extend to the upper surfaces of the left and right damper bases. A cross member 30 that forms a closed cross section in the width direction, and a pair of damper plates 34 that are spot welded to the dashboard upper 28 so as to overlap the upper surface of the damper base on the extension lines of the left and right ends of the cross member 30. .

  A plurality of holes 32 are formed in the cross member 30 for weight reduction. Reference numeral 38 denotes a tire house, and a damper housing (strut tower) 26 is welded to the tire house 38. Reference numeral 40 denotes a bonnet hinge side member, which is welded to the damper plate 34. The dashboard upper assembly 25 in FIG. 3 is a cross-sectional view taken along line AA in FIG.

  Referring again to FIG. 3, reference numeral 42 denotes a windshield lower panel, which is bent into a generally square shape by a bent portion 42c, and a front portion 42a substantially parallel to the windshield 14 and its lower end is welded to the dashboard upper 28. And a rear portion 42b having high rigidity.

  The central portion of the rear portion 42b of the windshield lower panel 42 in the vehicle width direction is formed in a crushed shape 45 so as to protrude or bulge out toward the engine room.

  FIG. 5 shows a perspective view of the windshield lower panel 42 as viewed from the passenger compartment side. A bolt 46 for attaching an instrument panel protrudes from the crushed portion 45. Reference numeral 48 denotes a stamped surface flange rising vertically from the front edge of the front portion 42a, and an engine number or the like is stamped on the back (engine room side) of the stamped surface flange 48.

  Referring again to FIG. 3, the lower end of the windshield 14 is adhesively fixed to the front portion 42 a of the windshield lower panel 42 with an adhesive fixing portion 44 in the vicinity of the bent portion 42 c of the bent portion of the windshield lower panel 42.

  The central panel 8 of the cowl top 6 has an integrally formed clip mounting seat 52. By engaging the clip 54 mounted on the clip mounting seat 52 with the front end portion of the windshield lower panel 42, the cowl top 6 has a clip mounting seat 52. The vehicle compartment side of the top 6 is attached to the windshield lower panel 42.

  A dashboard upper 50 is bolted to the tip of the dashboard upper 28, and the engine room side of the cowl top 6 is attached to the tip of the dashboard upper 50 by a clip 56.

  The lower end of the bracket (stay) 58 is welded to the cross member 30 and applied to the crushed portion 45 of the windshield lower panel 42 from the engine room side.

  Although not shown in the sectional view of FIG. 3, the stamped surface flange 48 of the windshield lower panel 42 shown in FIG. 5 is inserted into the cowl top 6. The stamped surface flange 48 can be seen through the grill. Therefore, by covering the stamped surface flange 48 with, for example, a black plastic cover, the appearance can be improved and the merchantability can be improved.

  According to the windshield lower end support structure of the present embodiment, when a pedestrian who collides with the front face is jumped up onto the hood 2 and collides with the cowl top 6, the windshield lower panel 42 is moved forwardly from the adhesive fixing portion 44 by a two-dot chain line 60. Since it is bent and deformed as shown, the impact when the pedestrian collides with the cowl top 6 can be effectively absorbed, and the pedestrian can be protected.

  Further, the vicinity of the center part in the vehicle width direction of the rear portion 42b of the windshield lower panel 42 is formed in a crushed shape 45, and the bracket 58 is applied to the crushed portion 45 from below, so that the windshield lower panel 42 Sufficient rigidity of the rear portion 42b can be secured. Thus, since the rigidity of the windshield lower panel 42 can be sufficiently ensured, noise is reduced and vehicle body vibration is prevented from being transmitted to the vehicle interior.

It is the perspective view which looked at the motor vehicle provided with the windshield lower part support structure of this embodiment from the front. It is a schematic side view of FIG. It is the sectional view on the AA line of FIG. It is a top view of the dashboard upper assembly attached to the damper base. It is a perspective view of a windshield lower panel.

Explanation of symbols

2 Bonnet 6 Cowl top 8 Central panel 14 Windshield (windshield)
25 Dashboard upper assembly 28 Dashboard upper 30 Cross member 42 Windshield lower panel 42a Front part 42b Rear part 42c Bending part 44 Bonding fixing part 45 Crushing part 50 Dashboard upper part 58 Bracket (stay)

Claims (1)

A windshield lower end support structure for supporting the lower end of an automobile windshield,
The windshield lower panel is folded into a rough shape with a front part and a rigid rear part.
A cowl disposed by adhering and fixing the front portion of the windshield lower panel near the bent portion and the lower end of the windshield so that the upper surface of the windshield lower panel is substantially flush with the bonnet. While configured to engage and support the top compartment side ,
The vehicle body width direction vicinity of the rear part is formed in a crushed shape protruding forward,
A dashboard upper joined to the lower end of the rear part;
A cross member welded to the dashboard upper so as to form a closed cross section in the vehicle body width direction;
A bracket whose lower end is welded to the cross member, and which is applied from the engine room side to the crushed portion of the rear part,
The dashboard upper part is fixed to the dashboard upper part and supports the engine room side of the cowl top at the tip thereof.
Windshield lower end support structure characterized in that, when a pedestrian collides with the cowl top, the windshield lower panel is deformed downward on the front side from the adhesive fixing portion to absorb impact force at the time of collision. .

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