JPS6145586B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air rectifying device for a motor vehicle, particularly for a truck, tractor, etc., which is constructed so that containers, trailers, etc. of various heights can be removably placed behind the cab.

In general, containers, trailers, and the like are increasingly being used in large trucks, tractors, and the like to simplify the loading and unloading work of transporting cargo.

In addition, in recent years, the containers and trailers of these types of trucks and tractors are usually placed so as to protrude above the cab, resulting in extremely large air resistance during driving, which has a negative impact on fuel consumption. Because of this, air rectifiers have been installed above the cab to reduce such air resistance.

However, the height of these types of containers, trailers, etc. varies depending on the size and amount of cargo to be transported, so even if such an air rectifier is installed above the cab, the It has been difficult to demonstrate sufficient effectiveness against containers, trailers, etc.

In other words, a normal air rectifier is configured with a shape and size predetermined depending on the height of the loading platform side, that is, the container or trailer side. Even when applied to containers, trailers, etc., it has been difficult to efficiently reduce air resistance.

An object of the present invention is to provide an air straightening device for automobiles that can be applied to various containers, trailers, etc. of different heights, efficiently reduces air resistance to such containers, trailers, etc., and improves fuel consumption. It is provided by.

In order to solve these problems, the air rectifying device of the present invention consists of an air baffle plate placed near the front on the cab roof, and an air baffle lift mechanism that adjusts the installation angle of the air baffle plate. , the air baffle plate lift mechanism is placed on the cab roof at appropriate intervals in the front and rear direction,
A pair of fixed crosses attached to the cab.
a pair of guide rails mounted between the member and the fixed cross member at appropriate intervals laterally on the cab roof; and a pair of guide rails that are slidable longitudinally along the guide rails. a movable bracket, a movable cross member attached between the movable brackets, a pair of movable arms rotatably connected to an appropriate portion on the back surface of the air baffle plate and the movable bracket;
The air baffle plate includes an actuator attached to a fixed cross member in front of the cross member and a movable cross member in front of the air baffle plate, and a distal end of the air baffle plate is rotatably attached to the fixed cross member in front of the air baffle plate.

Hereinafter, preferred specific examples of the air rectifying device for an automobile according to the present invention will be described with reference to the drawings.

1 to 4 show a specific example 10 of the air rectifying device for an automobile according to the present invention, which is applied to a cab-over type tractor 40. FIG.

The air rectifying device 10 includes an air rectifying plate 11 rotatably attached to a position near the front of the cab roof 41 of the cab-over type tractor 40, one end of which is attached to the cab roof 41 side, and the other end of which is rotatably attached to the front side of the cab roof 41 of the cab-over type tractor 40. Actuators 13 are respectively attached to the air rectifying plate 11 side.

That is, the air rectifying device 10 rotatably supports the air rectifying plate 11 and the lower portion of the air rectifying plate 11, and the actuator is configured such that the mounting angle of the air rectifying plate 11 can be adjusted. Air baffle plate lift mechanism 1 incorporating 13
It consists of 2.

The air baffle plate 11 is formed into a substantially rectangular shape by press molding of a steel plate, compression molding of a hard synthetic resin, injection molding, etc., and is approximately the same width as the cab roof 41 of the cab over type tractor 40. It is constructed with a width and an appropriate length.

In other words, the air baffle plate 11 can be applied to various types of trailers (not shown) of different heights connected to the rear of the cab-over type tractor 40 by the air baffle plate lift described later. Since the mechanism 12 is rotatably supported with an adjustable mounting angle, in order to widen the range of application to various trailer heights, the length of the air baffle plate 11 must be set in advance. It is desirable to keep it long.

Therefore, the size of the air baffle plate 11 is configured to be approximately the same as the size of the cab roof 41, or to be slightly smaller.

Of course, it is desirable that the air baffle plate 11 be formed with a slight curve on the back surface so as to reduce air resistance.

The air baffle plate lift mechanism 12 consists of a pair of fixed crosses mounted approximately parallel to each other at appropriate intervals in the front-rear direction on the cab roof 41.
Members 14, 15 and their fixed cross member 1
A pair of guide rails 16 and 17 installed substantially parallel to each other at an appropriate interval in the lateral direction so as to be passed between the guide rails 1 and 15;
A movable bracket 20 with rollers 28 and 29 that slides in the front and back direction along the inside of the brackets 6 and 17,
21, and a movable cross member 26 fixed at both ends to each of its movable brackets 20, 21.
, one end is pin connected to the movable brackets 20 and 21, respectively, and the other end is connected to the air rectifying plate 1 described above.
A pair of movable arms 18 and 19 are connected by pins to the upper part of the back surface of the air baffle plate 11 on the rear end side of 1, and one end is connected to the fixed cross member 14 in front of the movable arms 18 and 19, and the other end is connected to the movable arm 18 and 19. The actuators 13 are respectively attached to cross members 26.

The fixed cross members 14 and 15 are made of steel pipes, and are bent downward on both sides to form a substantially U-shape so that they can be placed floating on the top surface of the cab roof 41. , brackets 33, 34, 35, and 36 are attached.

The fixed cross members 14 and 15 are arranged approximately parallel to each other with an appropriate interval, and between the fixed cross members 14 and 15 arranged in this way,
A pair of guide rails 16 and 17 are laterally extended approximately parallel to each other with appropriate spacing therebetween.

The guide rails 16 and 17 are formed by bending a steel plate into a channel shape, and have roller grooves 39 formed inside.

Guide rail 1 formed in this way
6, 17 are fixed cross members 14, 1 with their respective roller grooves 39 facing inward.
5 are arranged approximately parallel to each other with appropriate intervals between them,
the fixed cross member 14 at each end;
It is welded to 15.

The roller grooves 39 of the guide rails 16, 17
includes a movable bracket 20 with rollers 28 and 29,
21 are arranged respectively.

Movable bracket 20 with rollers 28, 29,
Reference numeral 21 denotes a bracket body 27 formed by bending a steel plate into a substantially L-shape, and the bracket body 27.
The rollers 28 and 29 are rotatably attached to both outer ends of the vertical portion of the roller.

The movable brackets 20, 21 with rollers 28, 29 configured in this way are
are respectively slidably disposed inside the guide rails 16 and 17 so as to be accommodated in the roller grooves 39.

Further, inside the movable brackets 20 and 21 with rollers 28 and 29, there is a movable cross member 2.
Both ends of 4 are fixed.

That is, the movable cross member 24 is formed by bending a steel plate into a substantially L-shape along its length, and both ends are welded to the horizontal portions of the bracket body 27, respectively.

Further, above the vertical portion of the bracket body 27, one ends of movable arms 18 and 19 made of steel pipes are each connected with a pin.

Of course, the other ends of the movable arms 18 and 19 are configured so that they can each be connected with pins to the upper portion of the back surface of the air rectifying plate 11 described above.

Furthermore, reinforcing members 25, 26 made of steel pipes are passed approximately parallel to each other between the movable arms 18, 19, and the reinforcing members 25, 26 are provided at both ends of the movable arms 18, 19. They are welded to the arms 18 and 19, respectively.

In addition, the front fixed cross member 14 mentioned above
An actuator 13 is arranged between the movable cross member 24 and the movable cross member 24 .

That is, the actuator 13 is of a hydraulically operated type, and the cylinder end 37 is attached to the front of the fixed cross member 14 at approximately the center thereof, and the rod end 38 is attached to the movable cross member 24 at approximately the center thereof. ing.

In the air straightening plate lift mechanism 12 configured in this way, the fixed cross member 14 in front thereof has a rotatable portion on the tip side of the air straightening plate 11 and the lower part of the back surface of the air straightening plate 11. The movable arm 1
The other ends of 8 and 19 are rotatably attached to the rear end side of the air baffle plate 11 and to the upper part of the back surface, respectively.
In order to increase the strength of the air baffle plate 11, reinforcing members 22 and 23 are respectively attached to the back surface of the air baffle plate 11 in the longitudinal direction on both sides.

That is, the reinforcing members 22 and 23 are formed by bending a steel plate into a substantially hat-shaped cross section, and on both sides of the back surface of the air rectifying plate 11,
They are overlapped and welded along the length.

Therefore, when the lower part of the air baffle plate 11 is rotatably attached to the fixed cross member 14 in front of it, it is bent and formed from a steel plate so that it can be supported by covering the outside of the fixed cross member 14. The bearing plate 30 is placed in a predetermined position on the fixed cross member 14, and in this state, the air baffle plate 11 is placed in front of the fixed cross member 14, and the flange of the bearing plate 30 is placed in a predetermined position on the fixed cross member 14. Its reinforcement member 2
Tighten bolts 2 and 23 (see Figure 3).

Of course, the other ends of the movable arms 18, 19 in the air baffle lift mechanism 12 described above are pin-connected to brackets 44, 45 fixed to the upper portions of the reinforcing members 22, 23, respectively.

The air rectifying device 10 for an automobile according to the present invention configured as described above has an air rectifying plate 11.
is located on the cab roof 41 of the cab-over type tractor 40 so that the fixed cross members 14, 15
respective brackets 33 fixed to both ends of the
34, 35, 36 are attached to roof side rails 42, 43 on both sides of the cab roof 41.

Of course, the actuator 13 assembled to the air baffle plate lift mechanism 12 is supplied with oil as a hydraulic pressure supply source via oil pipes 31 and 32.
Connected to the pump (not shown) side and its oil/
The actuator 13 is attached to the pipes 31 and 32.
A manual switching valve (not shown) is inserted to selectively control the supply of pressure oil to the side.

The switching valve may be installed at any position as long as it is easy to operate; for example, it may be installed in an instrument panel (not shown) in the cab.

Next, a method of using the air rectifying device for an automobile according to the present invention will be explained.

First, the above-mentioned switching valve is operated according to the height of the trailer connected to the rear of the cab-over type tractor 40.

That is, if pressurized oil is supplied to the air pipe 31 side by operating the switching valve, the rod of the actuator 13 is retracted into the cylinder, and the movable cross member 24 attached to the end of the rod is retracted. is slid forward along guide rails 16, 17 via rollers 28, 29. In that way, the movable cross member 2
4 is slid forward, the upper part of the air baffle plate 11 is pushed up by the movable arms 18, 19, and the air baffle plate 11 is moved forward about the fixed cross member 14 in front of it. rotated to the side. In other words, that cab roof 41
The angle at which the air baffle plate 11 is attached to the air current plate 11 increases.

If the switching valve is operated in the opposite direction and pressure oil is supplied to the air pipe 32 side, the installation angle of the air baffle plate 11 with respect to the cab roof 41 is adjusted by the operation opposite to the above-mentioned operation. becomes smaller.

Therefore, if the height of the trailer connected to the rear of the cab-over type tractor 40 is relatively high, the mounting angle of the air baffle plate 11 can be increased by operating the switching valve, and ,
If the height of the trailer is relatively low, the installation angle of the air baffle plate 11 is reduced by operating the switching valve in the opposite direction.

Of course, when adjusting the mounting angle of the air baffle plate 11 in this way, the switching valve should be adjusted so that the rear end of the air baffle plate 11 is located approximately on the same plane as the top surface of the trailer to be connected. operate.

If the installation angle of the air baffle plate 11 is adjusted in accordance with the height of the trailer to be connected in this way, the air rectified by the air baffle plate 11 will directly hit the front of the trailer. The air resistance against the trailer is effectively reduced, and the fuel consumption rate is improved.

Further, although the actuator 13 described above has been described as a hydraulically operated type, it is also possible to apply a pneumatically operated type. Of course, in such a case, a compressor, an air tank, etc. as the air pressure supply source are used in combination.

According to the above invention, the air baffle plate lift mechanism includes a pair of fixed cross members attached to the cab at appropriate intervals in the longitudinal direction on the cab roof; Place the fixed cross at appropriate intervals in the horizontal direction.
a pair of guide rails attached between the members, a pair of movable brackets slidable in the front-rear direction along the guide rails, and a movable cross member attached between the movable brackets;
It consists of a pair of movable arms rotatably connected to an appropriate part on the back surface of the air baffle plate and a movable bracket, and an actuator attached to a fixed cross member and a movable cross member in front of the movable arm. Since the air baffle plate is rotatably attached at its leading end to the fixed cross member in front of it, it can be applied to various containers, trailers, etc. of different heights, and the air resistance for such containers, trailers, etc. can be efficiently reduced. In addition, the entire device is unitized and can be easily mounted on the cab roof using the roof side rails, and the bracket for mounting the device can be easily installed on the cab roof. Welding or screwing onto the cab roof is eliminated, and since the actuator is reciprocated in a substantially horizontal plane, the movable arm can be removed from either the air baffle plate or the movable bracket. If the air baffle plate is placed upside down on the cab roof, the space formed by the air baffle plate on the cab roof can be used as a roof rack. , become more practical.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view showing a specific example of an air rectifying device for an automobile according to the present invention applied to a cab-over type tractor, and Fig. 2 is a movable bracket in a specific example of the air rectifying device for an automobile according to the present invention. A partial perspective view showing the vicinity, Figure 3 is 3- in Figure 1.
A partial longitudinal sectional view along line 3, Figure 4 is 4 in Figure 1.
FIG. 4 is a partial cross-sectional view taken along line -4. DESCRIPTION OF SYMBOLS 10... Air rectifying device of an automobile, 11... Air rectifying plate, 13... Actuator, 40... Cab-over type tractor, 41... Cab roof.

Claims (1)

[Scope of Claims] 1. An air baffle plate lift mechanism that adjusts the mounting angle of the air baffle plate and an air baffle plate disposed near the front on the cab roof; has a pair of fixed cross members attached to the cab at appropriate intervals in the longitudinal direction on the cab roof, and a pair of fixed cross members attached to the cab roof at appropriate intervals in the lateral direction. A pair of guide rails attached between the members, a pair of movable brackets that slide in the front and back direction along the guide rails, a movable cross member attached between the movable brackets, and the air baffle plate. It consists of a pair of movable arms that are rotatably connected to appropriate parts on the back side and a movable bracket, and an actuator that is attached to a fixed cross member and a movable cross member in front of the movable arms. An air straightening device for a motor vehicle, characterized in that its sides are rotatably attached to a fixed cross member in front of it.