JPS6120092Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a macadam type road roller for compacting the road surface when paving roads, etc.
In particular, the present invention relates to a macadam-type road roller that improves forward visibility from the cockpit, makes it easier for the pilot to ascend and descend, and improves safety and maneuverability during emergency evacuation.

Conventionally, macadam type road rollers have been widely used as compaction machines for paved roads.

During this compaction work during road paving, the operator must constantly check the road shoulders, side ditches, manholes, and other obstacles to prevent them from being left unfinished or damaged. Therefore, the operator must frequently raise and lower the macadam type road roller. Furthermore, in order to prevent danger to road workers, the front field of view from the driver's seat in a macadam type road roller must be wide. Furthermore, since there is a possibility of falling accidents on roads in mountainous areas, etc., it is necessary that the operator can easily escape in an emergency.

However, in the case of the conventional macadam type road roller shown in FIG. narrow the
This is dangerous for road workers in front of the vehicle, and since the ladders 4 for climbing are provided only on the left and right sides of the frame, the operator can only ascend and descend from the left and right sides of the frame. It is not possible to go up and down from the front of the frame, which makes it difficult to respond in an emergency.

The purpose of this invention is to provide a macadam type road roller that can advantageously solve the above-mentioned problems, and the gist of this invention is to:
In a macadam type road roller, a pair of left and right front wheels are pivotally supported on a front frame, a rear wheel is pivotally supported on a rear frame, and the front frame and rear frame are rotatably connected by a center pin. 8
is mounted on a rear frame 7, and the upper surface of the front frame 1 is formed into a step-like shape that becomes lower from the rear toward the front.

Next, this invention will be explained in detail using illustrated examples.

2 and 3 show an embodiment of this invention, in which an engine 8 is mounted on a rear frame 7, and the upper surface of the front frame 1 is viewed from the rear as shown by the dotted line in FIG. It is formed in a step-like shape that becomes lower toward the front, and is lower in height than the front frame of a conventional macadam type road roller.

Side frames 5 are fixed to the left and right sides of the front frame 1, and a handrail 6 is attached to the upper part of the side frame 5. Improve your sexuality. The front frame 1 and the rear frame 7 are rotatably connected by a center pin 9, and the driver's seat 2 is located on the left and right sides of the rear of the front frame 1 in order to facilitate visibility of the sides and front of the road roller. Ladders 4 are provided on both sides, and ladders 4 for elevating and lowering are attached to both left and right sides of the rear part of the front frame 1.

In the figure, 3 is a steering wheel, 10 is a front wheel, and 11 is a rear wheel.

When implementing this idea, the upper part of the side frame 5 may be formed into a step shape that matches the step shape of the upper surface of the front frame 1 to further improve the forward visibility. In addition, the handrail 6 is attached to the front frame 1.
It may be installed directly on both the left and right sides of the top surface.

According to this invention, a pair of left and right front wheels are pivotally supported on a front frame, a rear wheel is pivotally supported on a rear frame, and the front frame and rear frame are rotatably connected by a center pin. In the type road roller, the engine 8 is mounted on the rear frame 7, and the upper surface of the front frame 1 is formed into a staircase shape that becomes lower from the rear to the front, so that the operator can use the upper surface of the front frame 1 as a staircase for climbing. Therefore, in the event of an emergency, it is possible to escape not only to the left and right sides of the front frame 1 but also to the front of the front frame 1, resulting in high safety in an emergency. When escaping forward, all you have to do is go down the stairs on the top of the front frame 1 facing forward, so you can escape more easily and quickly than when you go down the ladder 4. Since it has a step-like shape that gets lower from the rear to the front, the visibility from the driver's seat to the lower front is wide, and there is no risk of causing an unexpected accident to road workers in front of the macadam type road roller. Effects can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional macadam type road roller. FIG. 2 is a side view of a macadam type road roller according to an embodiment of this invention, and FIG. 3 is a plan view thereof. 1... Front frame, 4... Ladder, 7... Rear frame, 8... Engine, 9... Center pin, 10... Front wheel, 11... Rear wheel.

Claims (1)

[Scope of utility model registration request] In a macadam type road roller, a pair of left and right front wheels are pivotally supported on a front frame, a rear wheel is pivotally supported on a rear frame, and the front frame and rear frame are rotatably connected by a center pin. 8 is mounted on a rear frame 7, and the upper surface of the front frame 1 is formed into a step-like shape that becomes lower from the rear to the front.