JPH0565770U - Movable side corner vane structure - Google Patents

Abstract

(57) [Summary] [Purpose] The side corner vanes 4 that have the effect of preventing mud adhesion to the back of the van of a van type vehicle are movable, and are stored when traveling on a dry road surface without mud splashes. Do not make it worse. [Structure] A front corner vane 5 and a rear corner vane 6 are rotatably connected by a shaft 7. The arm 8 is connected to the upper and lower ends of the shaft 7, and the other end of the arm 8 is connected to the van 1.
It is supported by the shafts 9 and 10 protruding from the shaft. A gear portion 11 is provided on one arm 8 and meshes with a gear 13 that rotates integrally with the electric motor 12. In addition, springs 14 are attached to the front and rear corner vanes 5 and 6 to apply a biasing force in the direction of a dogleg to the corners of the bun. The arm 8 is rotated by the operation of the electric motor 12, and the side corner vane 4 is switched to either the retracted position or the mud splash countermeasure position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a movable side corner vane structure that prevents the back surface of a van-type vehicle traveling on a wet road surface from being contaminated by the muddy water splashed by its own traveling.

[0002]

[Prior Art]

 For example, a van-type vehicle with a substantially vertical wall on the back, such as a truck with a large van mounted on the loading platform (hereinafter referred to as a van-type truck) or a bus, is a muddy water splashed by itself when traveling on a wet road surface. Was attached and the back was dirty. Such dirt on the back surface causes troublesome problems such as 1) impairing aesthetics, 2) obstructing rearward visibility, and 3) time-consuming to wash a car. This is an important issue for improving the product appeal of van-type vehicles.

[0006] Therefore, a brief description will be given of conventional measures against mud adhesion to the back surface of the van. For example, a cavity 2 may be provided around the back surface of the van 1 (FIG. 5 (a)), or a sagging rubber continuous to the lower back of the van 1 may be used. There is one that attaches 3 (Fig. 5 (b)). However, although such conventional measures have some effects, they are not always sufficient, and all have the following problems. That is, according to the running test results shown in FIG. 6, the mud adhering to the peripheral portion of the rear surface of the van 1 is smaller in the countermeasure provided with the cavity 2 than in the original shape without the countermeasure (see FIG. 6A). Although it decreases, the effect does not extend to the center of the back surface (see FIG. 6B). In addition, although the measure to install the sag rubber 3 reduces the amount of mud that adheres to the upper back surface of the van 1, the effect does not extend to all other parts (see FIG. 6 (c)). Note that FIG. 6 is a front view showing the back surface of the van 1, and each hatched portion is a mud adhering portion.

[0004]

[Problems to be solved by the device]

 As mentioned above, conventional measures such as cavities and sagging rubber are not sufficient, but if the side corner vanes 4 as shown in Fig. 7 are attached, roll-up from the ground causes air flow from the side, that is, the side. It is known that the air curtain formed by the corner vanes 4 suppresses it and the condition of mud adhesion is significantly improved. However, since the side corner vanes 4 are mounted so as to project from the side wall of the van, there is a problem that the Cd value is greatly deteriorated (up by about 20%).

Therefore, an object of the present invention is to exert an effect as a side corner vane only when the road surface is wet, and to store it when traveling on a dry road surface to have an adverse effect on the Cd value. It is to provide a movable side corner vane structure that is prevented.

[0006]

[Means for Solving the Problems]

 The present invention solves the above-mentioned problems, and it is provided at the left and right corners of the back of a van-type vehicle where a substantially vertical wall is formed on the back, and a storage position that is in close contact with the side of the van, With a movable side corner vane structure that can be switched to a mud spatter countermeasure position that guides the air flow from the side to the back by forming an appropriate gap between it and the plate, it has a plate shape with a length from the upper end to the lower end of the van. Corner vanes, a shaft that rotatably connects the vertically divided corner vanes, a pair of upper and lower arms that connect the upper and lower ends of the shaft to a van, respectively, and the corner vanes at the corners of the van. An elastic member for applying a biasing force in the direction of a dogleg to the dogleg shape, and a drive means for rotating the arm to switch the corner vane to the storage position or the mud splash countermeasure position. Composed A movable-side corner vane structure, characterized in that.

[0007]

[Action]

 According to the above-mentioned means, when driving on a dry road surface where there is no concern about splashing mud, the side corner vanes are placed in the storage position in close contact with the side of the van, and the Cd value priority is selected so that the road surface gets wet. In this condition, the side corner vanes are switched to the mud spatter countermeasure position to form an appropriate gap with the wall surface of the van. In this mud splash countermeasure position, the side corner vanes that are bent in a V shape along the corner of the van guide the airflow from the side of the van to the back of the van. Prevent adhesion.

[0008]

【Example】

 An embodiment of a movable side corner vane structure according to the present invention will be described with reference to FIGS.

The side corner vane 4 having a length substantially equal to the upper end to the lower end of the van 1 is constructed by rotating a front corner vane 5 and a rear corner vane 6 obtained by vertically dividing a vertically long plate member into two in a vertical direction by a shaft 7. A pair of arms 8 are freely connected and are connected to the upper and lower ends of the shaft 7 so that they can rotate integrally with the van 1 by a predetermined angle. The other end of the arm 8 is rotatably supported by shafts 9 and 10 provided on the upper surface and the lower surface of the van 1, respectively, and a gear portion 11 formed at the end portion of the lower arm 8 is a driving means. The side corner vane 4 meshes with the gear 13 that rotates integrally with the drive shaft of the electric motor 12 that is installed as a storage position when traveling on a dry road surface and the mud splashes traveling on a wet road surface. You can switch to the countermeasure position. In addition, the side corner vanes 4 are elastic members that apply a bias in a direction that bends the front and rear corner vanes 5 and 6 that are divided into two along the corners of the van 1 into a dogleg shape. , A plurality of springs 14 are attached. Reference numeral 15 is a spring retainer, 16 is a stopper that determines a mud splash countermeasure position of the arm 8, and 17 is a roller that facilitates contact with the wall surface of the van 1 at the storage position.

The operation of the movable side corner vane structure having the above-described structure will be described below. At the stowed position of the side corner vanes 4 traveling on a dry road surface, the front and rear corner vanes 5, 6 form a single plate as shown by the solid line in FIG. 2 and are substantially in close contact with the side surface of the van 1. ing. At this time, if a concave portion for storing a side corner vane is provided on the side surface of the van 1, unevenness on the side surface of the van is reduced, which is advantageous for improving the Cd value. Then, when traveling on a wet road surface, the storage position is switched to the mud spatter countermeasure position. This switching operation is performed by the rotation torque generated by the operation of the electric motor 12. 13 is transmitted to the gear portion 11 of the arm 8 which meshes with the arm 8, and the arm 8 rotates about the shafts 9 and 10 as a fulcrum, and the corner vane 4 of the van 1 is integrated with the shaft 7 connected to the other end of the arm 8. It is done by rotating a certain amount to the rear side. The rotation of the arm 8 is regulated by the stopper 16, and the corner vane 4 which is separated from the side surface of the van 1 along with the rotation is bent in a substantially V shape around the shaft 7 by the urging force of the spring 14 (necessary). It is advisable to provide a stopper that regulates the bending amount accordingly. Then, in a position where the rotation of the arm 8 is restricted by the stopper 16, a predetermined gap is formed between the wall surface of the van 1 and the left and right corners of the rear surface of the van 1 as in the conventional example shown in FIG. 7B. A side corner vane 4 having a substantially V-shaped cross section is provided to guide the air flow generated by running from the side surface of the van 1 to the back surface, thereby forming an air curtain on the back surface of the van. Therefore, although the Cd value deteriorates, the eddy of splashed muddy water is blocked so as not to contact the back surface of the van. Therefore, it is possible to prevent muddy water from adhering to the back surface. The storage position and the mud splash prevention position may be switched automatically by using a road surface wetness sensor or a vehicle speed sensor, as well as manually switching the manual switch at the discretion of the driver. Furthermore, the switching from the mud splash countermeasure position to the storage position is performed by the reverse rotation of the electric motor 12, and the roller 17 of the side corner vane 4 first contacts the side surface of the van to enable smooth operation. Then, as the electric motor 12 continues to rotate in the reverse direction, the side corner vane 4 overcomes the bias of the spring 14 and becomes a flat plate shape from the dogleg shape and is stored at a predetermined position on the side surface of the van.

In the above embodiments, the electric motor 12 was used as the driving means and the torque was transmitted by the meshing of the gear 13 and the gear portion 12. However, in other embodiments, the drive of the electric motor 12 is performed. The shaft may be directly connected to the arm 8. Further, in addition to the electric motor 12, for example, a hydraulic cylinder or the like may be used as the driving means, and a structure may be provided in which an appropriate link mechanism is provided as needed.

[0012]

[Effect of the device]

 According to the present invention described above, the storage position that does not adversely affect the Cd value and the mud spatter countermeasure position that can almost completely prevent the back mud from adhering can be switched, so there is no concern about mud spatter. Cd value priority driving can be performed, and mud spattering prevention measures can be prioritized on wet road surfaces with mud spattering, which is a great effect for improving the commercialability of van type vehicles.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a movable side corner vane structure according to the present invention.

FIG. 2 is a schematic perspective view showing a switching position of FIG.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view showing an original van truck.

5A and 5B are diagrams showing a conventional measure, in which FIG. 5A is a diagram in which a cavity is provided around the rear surface of a van, and FIG. 5B is a diagram in which a sagging rubber is attached below the rear surface of the van.

6A and 6B are diagrams showing a result of a mud adhesion test, where FIG. 6A shows an original shape (non-measure vehicle), FIG. 6B shows a case where a cavity is provided, and FIG. 6C shows a case where a sag rubber is attached. ..

7A and 7B are views showing a fixed side corner vane mounting vehicle, in which FIG. 7A is a schematic perspective view of the back surface of the van, and FIG. 7B is a sectional view taken along line BB in FIG. 7A.

[Explanation of symbols]

 1 Van 4 Side Corner Vane 5 Front Corner Vane 6 Rear Corner Vane 7 Shaft 8 Arm 9, 10 Axis 11 Gear Part 12 Electric Motor (Drive Means) 13 Gear 14 Spring (Elastic Member) 15 Spring Presser 16 Stopper 17 Roller

Claims (1)

[Scope of utility model registration request] 1. A proper gap is formed between a vane wall surface and a stowage position which is provided at left and right corners of a rear face of a van-type vehicle having a substantially vertical wall face on the back face and is in close contact with the van side face. In the movable side corner vane structure that can be switched to the mud splash countermeasure position that guides the airflow from the side to the back, a plate-shaped corner vane having a length from the upper end to the lower end of the van and two vertical A shaft that rotatably connects the divided corner vanes, a pair of upper and lower arms that connects the upper and lower ends of the shaft to a bun, respectively, and the corner vanes are bent in a V shape along the corners of the bun. A movable side co-roller comprising an elastic member for applying a biasing force in the direction of rotation and a drive means for rotating the arm to switch the corner vane to the storage position or the mud splash countermeasure position. Naben structure.