JP2018114960A - Passenger car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress temperature rise in a passenger compartment without improving a material property of a windshield of a passenger car, or without providing an additional member.SOLUTION: A windshield 12 of a passenger car 10 is tilted forward so as to change a windshield tilt angle 14 into an obtuse angle, to thereby prolong a roof 16 furthermore forward than a conventional passenger car, and therefor shining of direct sunlight into a daylight passenger compartment, especially a driver seat, can be prevented. Further, in order to reduce a wind pressure generated by relieving laterally wind received during running, the front in a traveling direction of the windshield has a curved surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a passenger car, and more particularly to a windshield of a passenger car.

  The appearance of a passenger car is determined in consideration of not only the so-called design but also aerodynamic performance, comfort, and handling stability. As shown in FIG. 4, a recent passenger car 10 is generally designed to be close to a streamline in order to reduce air resistance. Therefore, the windshield 12 is inclined so as to gradually increase from the front to the rear in the traveling direction, but this inclination angle also tends to be reduced. The left side of Fig. 4 is the front in the direction of travel.

  The inclination angle of the windshield 12 is called a windshield angle, and is denoted by reference numeral 14 in FIG. Therefore, as the windshield tilt angle becomes smaller, the windshield goes to sleep, and there is nothing blocking the sunlight reaching the passenger compartment, causing the passenger compartment temperature to rise.

  The rise in the passenger compartment temperature is a problem especially in summer. Although car air conditioners are standard equipment these days, they are usually turned off when the vehicle is stopped. As a result, the passenger compartment temperature rises, causing thermal deformation of plastic parts, which may cause failure and damage, there is a risk of fire, and confinement of infants may become a social problem. is there.

  Therefore, various technologies have been developed from the viewpoint of heat shielding and UV cut. For example, a laminated glass with a glass sandwich on both sides of a thin resin film is generally used for the windshield. Furthermore, measures such as improving the glass material (see Patent Document 1), providing a film or coating (see Patent Document 2), avoiding direct sunlight using a sun visor (see Patent Document 3), etc. Is taken.

Special table 2013-530117 gazette JP 2006-334530 A JP 2010-149830 A

All of the conventional technologies are related to improving the material properties of the windshield and providing additional members.
The object of the present invention is to remove or alleviate the above-mentioned problems in passenger cars by changing the windshield tilt angle of the windshield, and in particular to suppress the temperature rise in the passenger compartment.

  The present invention is intended to solve the problem by tilting the windshield forward, that is, the passenger car of the present invention is characterized in that the windshield angle is tilted forward to make the windshield angle obtuse.

  By tilting the windshield forward and making the windshield tilt angle obtuse, the roof extends forward compared to conventional passenger cars, preventing direct sunlight from entering the daytime cabin, especially the driver's seat. Is possible.

  Here, the windshield tilt angle is the angle of the windshield in the side view, but in the plan view, the windshield is preferably a curved surface with a convex forward direction. This is to reduce the wind pressure that is generated when the wind received during running escapes to the side.

  According to the present invention, it is possible to prevent the direct sunlight from entering the passenger compartment in the daytime, particularly the driver's seat and the passenger seat, and suppress the temperature rise in the passenger compartment. In addition, because the windshield is not exposed to direct sunlight, it is difficult for the temperature in the passenger compartment to rise, and the temperature rise in the passenger compartment during outdoor parking when the air conditioner is normally turned off can be reduced. Of course, it is also useful for preventing or reducing UV rays.

  Because the windshield tilts forward, raindrops do not directly hit the windshield, so raindrops are less likely to adhere to the windshield and a good visibility for the driver is maintained. Even when rain hits the windshield during rainy weather, the raindrops are not crushed because of the small collision angle with the windshield, and the wind pressure generated by the running is combined, so it flows down quickly along the windshield.

  It is difficult for snow to accumulate on the windshield even during snowfall. In addition, water droplets and dew are less likely to adhere to the windshield, so the windshield can be prevented from freezing even when parked outdoors.

  When the windshield tilt angle is acute as in the past, the windshield gets closer to the driver's seat and passenger's seat as it moves backward in the direction of travel. On the other hand, if the windshield tilt angle is made obtuse, the windshield tilts away from the driver's seat and front passenger seat, so there is less risk that the driver will hit his / her head or face against the windshield during a rear-end collision. Become.

BRIEF DESCRIPTION OF THE DRAWINGS It is the longitudinal cross-sectional schematic for demonstrating embodiment of invention. It is the elements on larger scale of FIG. It is a perspective view seen from the front left diagonal top. It is a longitudinal cross-sectional schematic diagram for demonstrating the prior art.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that the same symbols are used for the same elements throughout the drawings.

  As shown in FIG. 1, the windshield 12 of the passenger car 10 is tilted forward to make the windshield tilt angle 14 an obtuse angle. Thereby, the front end of the roof 16 is extended forward compared with the conventional passenger car (refer FIG. 4). The specific angle should be determined in consideration of aerodynamic performance and design.

  As can be seen from FIG. 3, in the plan view, the windshield 12 is a curved surface that is convex forward in the traveling direction. It does not necessarily have to be a curved surface as a whole, and it may contain straight parts. By making the windshield 12 have such a shape, the wind can escape to the side during traveling and the generated wind pressure can be suppressed. In the longitudinal section (FIG. 1), the windshield 12 is drawn in a concave arc shape, but it may be partially or entirely linear.

  As shown in FIG. 2, a nozzle 18 may be provided at the upper end of the windshield 12. The nozzle 18 is set so as to blow downward air on the windshield 12 as indicated by an arrow, using wind pressure generated during traveling. In this way, the nozzle 18 helps to maintain good visibility by blowing off water droplets and snow on the windshield 12. In other words, it demonstrates the wiper function by air blowing.

  For example, a long hole extending in the vehicle width direction is formed between the windshield 12 and the entire length of the windshield 12 in the width direction. The long hole has an upper opening and a lower opening that communicate with each other, and the cross-sectional area decreases from the upper opening toward the lower opening. The upper and lower openings serve as the inlet and outlet of the nozzle 18, and the air sucked from the upper opening increases the flow velocity and blows out from the lower opening. The details of the nozzle can be devised, for example, by providing a step between the windshield 12 or the front end portion of the roof 16 from the viewpoint of air suction, or by directing the upper opening forward or obliquely upward. .

  Although not shown in the figure, a windshield covering the upper part of the bonnet with a gentle curved surface may be provided from the front nose to the roof on the upper end of the windshield. In that case, the windshield and windshield are also opened and closed respectively. As a possibility, when one of them is closed, the other may be opened, or both may be open or closed. The opening / closing mode can be selected and adopted as appropriate, such as sliding, swinging, flipping up, single-opening, double-opening, etc. In addition, the windshield may be removable.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described herein and illustrated in the accompanying drawings, and various modifications can be made without departing from the scope of the claims. Needless to say, you can.

DESCRIPTION OF SYMBOLS 10 Passenger car 12 Windshield 14 Windshield inclination angle 16 Roof 18 Nozzle

Claims (3)

  A passenger car characterized in that the windshield tilt angle is obtuse by tilting the windshield forward.   The passenger car according to claim 1, wherein the windshield is a curved surface having a convex front in a traveling direction in plan view.   The passenger car according to claim 1 or 2, wherein a nozzle is provided near an upper end of the windshield, and air is blown downward along the windshield from the nozzle.

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