JPS6024766Y2 - Side wing device of articulate type motor radar - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a side wing device for an articulated motor grader.

1 to 3 are schematic explanatory diagrams of a conventional rigid motor grader equipped with a side wing device. The rigid motor grader is a work vehicle that performs snow removal work on wide roads and sidewalks. An attachment called a side wing is attached to the side of the vehicle body to remove snow accumulated on the road to the outside.

In these figures, a is a side wing, and the front part of the side wing a is equipped with a vertical link mechanism, and the rear part is equipped with an opening/closing link mechanism C, as shown in the figure.
c is hydraulically operated.

Also, when transporting the motor grader, the side wing a is attached to a lock (
It is designed to be fixed by safety) device d, and all operations of these mechanisms (c) and device d are performed by operating a control device (not shown) installed in the driver's seat (cab) e. It has become.

In the figure, f indicates the left cab door, and g indicates the blade of the motor grader body.

In the above-mentioned conventional rigid type motor grader, the side wing a is attached to the rigid type vehicle body via the vertical link mechanism b1 and the opening/closing link mechanism C. only the conditions are satisfied.

For example, the large turning radius limits snow removal work near bends in the road.

(ii) Since the front mounting position of the side wing a is located in front of the cab e, visibility to the side (left side) is poor, impeding snow removal work, and opening and closing of the left cab door f is restricted.

(iii) The blade g of the grader main body and the side wing a tend to interfere, and therefore the snow removal angle β of the blade g cannot be increased.

There were drawbacks such as.

The present invention was proposed with the aim of eliminating the drawbacks of the side wing device of the conventional rigid type motor grader mentioned above. Connects to the front bracket of the rear body through the
This invention relates to a side wing device for an articulated motor grader, characterized in that its rear portion is connected to a rear bracket of a rear vehicle body via a hydraulic cylinder for opening and closing.

The present invention will be specifically explained below with reference to embodiments shown in FIGS. 4 to 8.

4 to 7, reference numeral 1 denotes a side wing installed on the left outer side of the rear body B of the articulated motor grader, and the front part of the side wing 1 is attached to the rear body B as shown in FIG. It is vertically movably connected to the rear vehicle body B via a parallel link 2 interposed between the left outer side of the side wing 1 and the support member 1a of the side wing 1, and is also fixed to the engine cover 14 of the rear vehicle body B. The tip of the rod 3a of the side wing lifting hydraulic cylinder 3 whose base is connected to the front bracket 5 with a pin is connected with a pin to a suitable position of one of the parallel links 2. When activated, the side wing 1 can be moved up and down via the parallel link 2 while maintaining its vertical posture.

When the rod 3a of the lifting hydraulic cylinder 3 is at its maximum stroke, the lower edge of the side wing 1 approaches the road surface.

The other end of the parallel link 2 is rotatably connected to a hinge 7 attached to the front inner surface of the side wing 1 via the support member 1a. 6 is a rear bracket provided at a suitable position at the rear end of the rear vehicle body B as shown in FIG. 6, one end of an arm 9 is rotatably connected, and the other end of the arm 9 is rotatably connected to the base of the side wing opening/closing hydraulic cylinder 4 with a pin.

The tip of the rod 4a of the side wing opening/closing hydraulic cylinder 4 is rotatably connected to an appropriate position on the inner surface of the side wing 1 via a universal joint 10, as shown in FIG.

Reference numeral 11 denotes a column installed above the hinge 7 on the front left side of the rear vehicle body B, and both ends of the wire lla that is suspended from the column are connected to the front and rear ends of the side wing 1. The wire 11a is attached as shown in FIG.
has the role of suspending the side wing 1 via the support 11 and adjusting the side wing 1 so that it remains parallel to the ground.

Reference numeral 12 denotes a locking device disposed on the left side of the rear vehicle body B. When the side wing 1 is raised to the top by the operation of the lifting hydraulic cylinder 3, its hook 13 locks the side wing 1 into the raised position. It is designed to be retained.

In addition, in the figure, 15 is the blade of the motor grader main body, and 16 is the blade of the motor grader main body.
17 indicates the cab, and 17 indicates the left cab door of the cab 16, respectively.

One embodiment of the device of the present invention is constructed as described above, and when using this device to remove snow from wide roads, sidewalks, etc., as shown by the solid line in Fig. 7, The rod 3a of the hydraulic cylinder 3 is extended, and the entire side wing 1 is displaced outward and lowered via the parallel link 2.

At the same time, as shown by the dashed line in Figure 6,
If the rod 4a of the opening/closing hydraulic cylinder 4 is extended, the side wing 1 is opened, and the motor grader is moved forward.
Snow on the road surface is pushed outward by the blades 15 and the side wings 1 and removed.

In this case, in the device of the present invention, since the side wing 1 is displaced outward as a whole as described above, there is a risk that the front end of the side wing 1 may interfere with the blade 15 of the motor grader main body or the cab lower part 17. Therefore, the snow removal angle α (FIG. 6) of the blade 15 can be sufficiently obtained.

In addition, the front mounting position of side wing 1 is
Because it is located behind the cab 16 on the left side, the visibility from the cab 16 on the left side is wide.

(See Figure 8) Since the device of the present invention has the above-described configuration and operation, the present invention can eliminate all the drawbacks of the side wing device of the conventional rigid type motor grader mentioned above. When transporting the motor grader, the overall width of the vehicle can be narrowed by raising the side wings 1. Also, during snow removal work, the front end of the side wing 11 approaches the vehicle body, so that the front end of the side wing 11 is closer to the vehicle body, so that the front end of the side wing 11 is closer to the vehicle body. A practical effect can be obtained in that the cooperative operation with the side wing 1 can be enhanced, and therefore snow removal work can be improved.

[Brief explanation of drawings]

1 to 3 are schematic illustrations of a conventional device, in which FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is an explanatory diagram of the operating state of the side wing, and FIGS. 4 to 8 The figures are schematic explanatory views of one embodiment of the present invention, in which Fig. 4 is a side view, Fig. 5 is a plan view, Fig. 6 is an explanatory view of the operating state of the side wing, and Fig. 7 is an illustration of the operating state of the side wing.
The sectional view taken along the line ■-■ in the figure, and FIG. 8 are plan views of the motor grader main body in a state in which it is articulated left and right. In Figures 4 to 8, 1: side wing, 2:
Parallel link, 3: Hydraulic cylinder for raising and lowering the side wing,
4: Hydraulic cylinder for opening and closing side wings, 5: Front bracket, 6: Rear bracket, 7: Hinge, 8: Pin, 9: Arm, 15: Blade of motor grader body, 16: Driver's seat (cab), 17: Cab door , B: Rear body.

Claims (1)

[Scope of utility model registration request] The front part of the side wing of the articulated motor grader is connected to the front bracket of the rear vehicle body via a parallel link and a lifting hydraulic cylinder, and the rear part is connected to the rear bracket of the rear vehicle body via a hydraulic cylinder for opening and closing. A side wing device for an articulated motor grader.