JP2549983Y2 - Front body structure of vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a front body structure of a vehicle, and more particularly to an improved cowl grill for realizing a low cowl and a low bonnet.

(Prior art)

The cowl box of the front body structure of the vehicle is an important cross member that supports the lower end of the windshield and connects the lower ends of the left and right front pillars. The cowl box introduces outside air to the air conditioner A mouth is provided.

Recently, semicon shielded or concealed type wiper devices have been widely adopted due to design requirements, and therefore, an open cowl-shaped cowl box has been increasingly adopted. At the same time, improvement of aerodynamic characteristics and design of low cowl and low bonnet are being demanded.

In the case of the open cowl box described above, for example, as described in Japanese Utility Model Laid-Open No. 60-57416, a cowl box near the outside air inlet is generally provided to prevent rainwater from entering from the outside air inlet. A cowl grill that covers the upper part of the vehicle is provided. Further, a wiper drive motor is mounted on the front wall on the left or right end side of the cowl box, and a link system for driving the wiper is provided in the cowl box.

[Problems to be solved by the invention]

By the way, it is conceivable to reduce the height of the open cowl-shaped cowl box in order to make it a low cowl / low-bonnant.However, since the open cowl-shaped cowl box is not a closed cross-section structure, Although the cross-sectional dimensions cannot be made too small, recently the cowl box has been made as large as possible in the front-rear direction and its height has been made as small as possible.However, it is almost impossible to further reduce the height of the cowl box. Have difficulty.

If the cowl box height is made as small as possible, the cowl grille and the wiper drive mechanism, such as the wiper drive link system, interfere with the cowl grille. There is a problem that the rear portion of the hood and the cowl grill vibrating up and down interfere with each other.

In addition, when a link system or the like of the wiper driving mechanism is provided below the cowl grill, there is also a problem that the cowl grill becomes an obstacle and maintenance of the wiper driving mechanism becomes difficult. Therefore, it is conceivable to form an opening in the cowl grill above the wiper crank arm of the wiper drive mechanism. In this case, however, a problem arises that rainwater that has entered the cowl box from the opening enters the outside air introduction unit. .

The purpose of the present invention is to make a low cowl and low bonnet in the front body structure equipped with an open cowl-shaped cowl box, to facilitate inspection and repair of the wiper drive engine, and to provide water to the outside air inlet. Preventing intrusion, etc.

[Means for solving the problem]

In the front body structure of the vehicle according to the present invention, the open cowl-shaped cowl box joined to the upper end of the dash lower panel of the front body includes a cowl front panel forming a front wall, a lower wall and a rear wall. It is composed of a dash upper panel that forms and a cowl panel that forms the upper wall of the rear,
A rear portion of the bonnet is disposed above the cowl box, and a wiper crank arm driven by a wiper motor attached to the cowl front panel is provided in the cowl box so as to rotate substantially in a vertical plane. The dash upper panel of the cowl box is provided with an outside air introduction port located near the wiper crank arm, and a panel-shaped cowl grill that covers above the outside air introduction port and connects the cowl front panel and the cowl panel is provided. An opening is formed at a front portion of the cowl grill to open the upper side of the wiper crank arm, and a rib is formed at a lower surface of the cowl grill to prevent water from entering the outside air inlet from the opening. It is characterized by having. The underlined portion indicates the current correction point.

[Action]

In the front body structure of the vehicle according to the present invention, an open cowl-shaped cowl box forms a cowl front panel forming a front wall, a dash upper panel forming a lower wall and a rear wall, and a rear upper wall. And a rear portion of the bonnet is disposed above the cowl box.

An outside air inlet is provided in the dash upper panel of the cowl box near the wiper crank arm, which is driven to rotate substantially in the vertical plane in the cowl box, and a panel-shaped cowl grill that covers the upper side is provided above the wiper crank arm. The opening part that opens the door, so that the interference between the cowl grill and the wiper crank arm,
The mounting position of the cowl box can be lowered, whereby a low cowl and a low bonnet can be achieved, and inspection and repair of the wiper drive mechanism including the wiper crank arm can be facilitated.

A rib is formed on the lower surface of the cowl grill to prevent water from entering the outside air inlet from the opening, so that the water enters the open cowl box and the water that enters from the open portion of the cowl grill enters the outside air inlet. Intrusion can be reliably prevented.

[Effect of the invention]

According to the front body structure of the vehicle according to the present invention, as described above, the open portion that opens the upper side of the wiper crank arm is formed on the panel-shaped cowl grill provided in the open cowl-shaped cowl box. In addition, a low cowl and a low bonnet can be achieved, and the inspection and repair of the wiper drive mechanism including the wiper crank arm can be facilitated.

Moreover, since a rib is formed on the lower surface of the cowl grill to prevent water from entering the outside air inlet from the opening,
It is possible to reliably prevent water that has entered from the open portion of the cowl grill of the open cowl box from entering the outside air inlet.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In this embodiment, the present invention is applied to a front body structure of a two-door sedan type automobile M having an open cowl and a concealed wiper shown in FIG.

As shown in FIGS. 2 and 3, the cowl box 1 of the body of the vehicle M connects the lower ends of the left and right front pillars 2 and supports the lower end of the front window glass 3 over the front width of the vehicle. The open cowl-type cowl box 1 is connected to the upper end of the dash lower panel 4 and extends rearward from the lower end of the cowl front panel 5 and rises upward at the rear. A dash upper panel 6, a cowl panel 7 joined to an upper end of a rear end of the dash upper panel 6 and extending forward to cover an upper part of a rear half of the dash upper panel 6, and an upper rear portion and a cowl panel of the dash upper panel 6; And a cowl member 8 which forms a closed cross section 9 at the upper end of the rear end of the cowl box 1 together therewith. To have. The lower end of the front window glass 3 is fixed to the upper surface of the closed section 9 with an adhesive sealing material 10.

Although the cowl box 1 has the required rigidity and strength, it does not have a closed cross-section structure as a whole, and the closed cross-section 9 supporting the lower end of the front window glass 3 has a dash upper having an L-shaped cross section. Since the dash lower panel 4 and the cowl front panel 5 are connected to each other via the panel 6, even if the dash lower panel 4 is pushed rearward by the engine and deformed in a severe frontal collision, the amount of deformation movement is limited to the dash upper panel 6. , The closed section 9 is hardly deformed, and the lower end of the front window glass 3 does not separate from the closed section 9.

An opening 11 is formed in the upper part of the first half of the cowl box 1, that is, between the cowl front panel 5 and the rear end of the cowl panel 7, and a rear part of the bonnet 12 is disposed above the opening 11. The space between the cowl front panels 5 is sealed with a sealing material 13. Incidentally, reference numeral 14 denotes a molding.

Since the car M is a left-hand drive vehicle for foreign countries, the air conditioning unit 15 is disposed below the right end of the cowl box 1 and is introduced near the right end of the cowl box 1 to introduce outside air to the air conditioning unit 15. A short tubular baffle plate 17 forming an outside air inlet 16 is fixedly mounted on the dash upper panel 6.
The air-conditioning unit 15 is connected to the outside air inlet 16 formed by. As shown in FIG. 2 to FIG.
In order to prevent rainwater and the like from flowing in from outside with the outside air, a cowl grill 18 made of synthetic resin is provided to cover an upper portion of the outside air inlet 16 and the periphery thereof.
Is superposed on the rear edge portion via a sealing member 19 and is fixed to the cowl panel 7 by a fastener 20 at appropriate intervals,
As shown in FIG. 5, a mounting portion 21 at the rear edge of the right end is fixed to the cowl panel 7 with a fastener 21a via a sealing member 19, and a mounting portion 22 at the front end near the right end is connected to the cowl front panel 5. Fasteners 22a are fixed to the bracket 23 of the cowl, and two mounting portions 24 and 25 at the front end of the left half thereof are attached to the rear surface of the cowl front panel 5 by fasteners 24a and 25a, respectively.
It is fixed with. As shown in FIG. 5, a dash upper panel 6 is provided at the right end of the cowl box 1.
The apron rain reinforcement 26 and the cowl plate upper inner 27 form a closed section in the front-rear direction, and the right end 7a of the cowl panel 7 and the bonnet hinge bracket 28 are joined to the upper surface of the cowl plate upper inner 27. I have.

The wiper motor 29 of the wire device is attached to the front end of the cowl front panel 5 on the right end side of the cowl box 1, and the crank arm 31 of the wiper link mechanism driven by the wiper motor 29 via the rotary shaft 30 is provided inside the cowl box 1. A wiper rod 32 disposed near the cowl front panel 5 and connected to the tip of the crank arm 31 is disposed so as to extend leftward in the cowl box 1 and is connected to a pair of right and left wiper arms.

In order to avoid interference with the right ends of the crank arm 31 and the wiper rod 32, a substantially rectangular opening 18a that is elongated in the left and right directions is formed at the front of the right half of the cowl grill 18. Further, a concave portion 6a which is recessed downward is formed in a portion of the dash upper panel 6 corresponding to a lower portion of the right half portion of the opening portion 18a, and a bonnet inner reinforcement 12a corresponding to an upper portion of the crank arm 31 is formed. A concave portion 12b which is recessed upward is formed in the portion.

As shown in FIGS. 2 and 6, the cowl grill 18 is formed not as a plan view but as a plurality of surfaces which are connected in a bent manner to increase rigidity and strength and to increase raindrops to the outside air inlet 16. As shown by the broken line ABCD in FIG. 2, a rib 18b reaching the upper portion of the dash upper panel 6 is formed integrally with the lower surface side of the cowl grill 18 as shown by a broken line ABCD in FIG. 18d and the like are also integrally formed on the lower surface side, and drainage channels 18e and 18f are also formed on the upper surface of the cowl grill 18.

Next, the operation of the above-described front vehicle body structure will be described.

An open portion 18a is formed at the front of the cowl grill 18 so that the crank arm 31 and the wiper rod 32 do not interfere with the cowl grill 18.
The mounting height position can be greatly reduced, and thereby a low cowl can be achieved.

In addition, when the cowl grill 18 is interposed between the crank arm 31 and the wiper rod 32 and the bonnet inner reinforcement 12a without providing the opening 18a, the thickness of the cowl grill 18 is set between these when the vehicle is running. Although it is necessary to provide a space that adds the vertical vibration width of the vibrating cowl grill 18, the above space is omitted because the cowl grill 18 is not interposed there, and the mounting height position of the rear part of the bonnet 12 is lowered to form a low bonnet. Can be achieved. By forming the recesses 6a and 12b in the dash upper panel 6 and the bonnet inner reinforcement 12a, respectively, the mounting height position of the crank arm 31 is lowered, and interference between the crank arm 31 and the bonnet 12 is prevented to further lower the height. A bonnet is being used.

In addition, inspection and repair of the crank arm 31 and the wiper rod 32 from the open portion 18a of the cowl grill 18 can be easily performed.

The cowl grill 18 is not limited to a synthetic resin, but may be a metal. The present invention can be similarly applied to a case where various mechanisms other than those in the above-described embodiment are used as the wiper link mechanism of the wiper device, or a case where the wiper motor 29 is disposed in the cowl box 1.

[Brief description of the drawings]

1 is a perspective view of an automobile, FIG. 2 is a plan view of a main part of a front body structure in which a hood is omitted, and FIG. 3 is FIG. III. 4 is a sectional view taken along the line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along the line VV of FIG. 2, and FIG. 6 is a perspective view of the cowl grill. 1 ... Cowl box, 4 ... Dash lower panel, 12
... Bonnet, 18 ... Cowl grill, 18a ... Open part, 31 ... Crank arm, 32 ... Wiper rod.

Claims (1)

(57) [Scope of request for utility model registration] An open cowl-shaped cowl box joined to the upper end of a dash lower panel of a front vehicle body includes a cowl front panel forming a front wall, a dash upper panel forming a lower wall and a rear wall, A cowl panel forming a rear upper wall, a rear portion of a bonnet is disposed above the cowl box, and a wiper crank arm driven by a wiper motor mounted on the cowl front panel has a substantially vertical surface. The cowl box is provided so as to rotate inside the cowl box. The dash upper panel of the cowl box is provided with an outside air introduction port located near the wiper crank arm. The cowl front panel covers the outside air introduction port and covers the outside. A panel-shaped cowl grill is provided to connect the cowl panel and the cowl panel. An opening for opening the upper part of the wiper crank arm, and a rib for preventing water from entering the outside air inlet from the opening on the lower surface of the cowl grill; Body structure.