JPS597176Y2 - Cowl top seal structure - Google Patents

Description

[Detailed Description of the Invention] In the present invention, an outside air intake port is opened in the flat upper surface of the cowl top, and the rear end of the hood extends above the cowl top.

This invention relates to an improvement in a seal structure that shields between an engine room and an outside air intake port in a so-called concealed type vehicle.

Conventionally, this type of sealing structure for a cowl top is as shown in FIGS. Both end portions 6 were extended in the longitudinal direction of the vehicle on both sides of the outside air intake port 3, and a seal rubber 5 was used to prevent hot air in the engine room 7 from entering the interior of the vehicle through the outside air intake port 3.

However, this type of conventional cowl top seal structure has the following problems.

That is, the seal rubber 5 on the upper flat part 2 of the cowl top 1 is made of an extruded or shaped product, and both ends 6 of the seal rubber 5 extend in the longitudinal direction of the vehicle body on both sides of the outside air intake port 3. The cross-sectional shape is uniform, and the height dimension is also uniform throughout the entire circumference.

Further, this seal rubber 5 is shaped so that it can be sealed, mainly taking into account the distance between the front edge of the upper flat part 2 of the cowl top 1 and the hood 4.

However, the distance between the hood 4 and the upper surface of the cowl top 1 increases as you move toward the rear of the vehicle body, and for this reason, near the terminals of both ends 6 of the seal rubber 5, when the hood 4 is closed, the lower surface of the rear end of the hood 4 In some cases, a gap is formed between the seal rubber 5 and the seal rubber 5, resulting in an incomplete seal.

In such a case, if outside air is introduced through the outside air intake port 3, hot air in the engine room 7 will be sucked into the outside air intake port 3 from near both ends 6 of the seal rubber 5, and this hot air will enter the passenger compartment. There was a fear that it would happen.

The present invention solves these problems with the conventional cowl top seal structure, and includes a hood bumper on both ends of the seal rubber that cushions the impact when the hood is closed and provides a predetermined reaction force when the hood is opened. To provide a seal device which is provided with a hood bumper bar and can more reliably prevent hot air from entering an outside air intake port.

This invention will be described in detail below based on embodiments shown in the accompanying drawings.

3 and 4, the seal structure of this embodiment is formed by extruding or molding resin, rubber, etc. along the front edge of the upper flat part 2 of the cowl top 1 in the same manner as in the past. A seal rubber 5 having a substantially C-shaped cross section is attached, and both ends 6 of the seal rubber 5 extending in the longitudinal direction of the vehicle body are shaped slightly shorter than before on both sides of the outside air intake port 3 opened in the upper flat part 2 of the cowl top 1. A hood bumper rubber 8 made of resin or rubber is attached to this terminal so as to be continuous with the seal rubber 5, and the hood bumper rubber 8 is in close contact with the lower surface of the rear end of the hood 4 when the cord 4 is closed. This is how it was done.

Both ends of the seal rubber 5 mentioned above end midway along the side of the outside air intake 3 opened in the upper flat part 2 of the cowl top 1, and the hood bumper rubber 8 ends at both ends 6 of the seal rubber 5. The cowl top 1 has a flat upper surface 2 which is connected to the cowl top 1 by an appropriate means, and the upper surface has a shape that follows a part of the rear corner of the hood rain hose 10.

Please note that this hood bumper rubber is installed using screws,
Possible means include adhesion, drilling mounting holes in the flat upper surface of the cowl top 1, and fitting mounting bosses protruding from the lower surface of the rubber.

Further, the seal rubber 5 has a cross section that is approximately inverted U-shaped, but the cross section of the seal rubber 5 can be any shape as long as it can seal between the upper surface of the cowl top 1 and the hood 4. Other shapes such as a hollow elliptical shape may also be used.

Therefore, according to the sealing structure of the cowl top shown in the above embodiment, when the hood is closed, the seal rubber 5 provided on the upper flat part 2 of the cowl top 1 and its both ends 6 Both the hood bumper bars 8 provided at the terminals of the hood 4 are crushed and deformed by the hood 4, and come into close contact with the hood rain hose 10 on the lower surface of the hood 4 to shield between the engine room 7 and the outside air intake port 3.

Therefore, according to the sealing structure of the cowl top according to the present invention, when outside air is taken in from the outside air intake port, the hot air generated in the engine compartment does not flow in together with the outside air from the outside air intake port.

[Brief explanation of drawings]

FIG. 1 is an explanatory perspective view showing a conventional cowl top seal structure, and FIG. 2 is a sectional view taken along line II--II in FIG. 1. Fig. 3 is an explanatory perspective view showing one embodiment of the seal structure of the present invention & 3-effect S cowl top.
It is a VI-VI sectional view of a figure. 1...Cowl top, 2...Flat top surface of cowl top, 3...Outside air intake port, 4...Hood, 5...Seal rubber 7...Engine room, 8...Foot handle Harabar 9...Outside air, 10...Food reinforcement.

Claims (1)

[Scope of utility model registration request] An outside air intake port 3 is provided in the upper flat part 2 of the cowl top 1, and the rear end of the hood 4 is connected to the upper flat part 2.
A seal rubber 5 is attached to the upper flat portion 2 along its front edge, and both ends 6 of the seal rubber 5 extend in the longitudinal direction of the vehicle body on both sides of the outside air intake port 3. In the sealing structure of the cowl top in which the seal rubber 5 prevents the hot air in the engine room 7 from entering the cabin through the outside air intake port 3, a cross-sectional shape of the inner plate of the rear edge of the hood is attached to both ends 6 of the seal rubber 5. A cowl top seal structure characterized by connecting a hood bumper rubber 8 of a suitable shape.