JPS6346492Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a screed device for an asphalt finisher, and in particular to an improvement of an end plate height adjustment device.

PRIOR ART As shown in Figs. 1 and 2, a screed device 1, which is a compaction device for an asphalt finisher, has an end plate 3 between a screed plate 2 and an end plate frame 4. Since the end plate 3 needs to be adjusted in height relative to the pavement surface, a screed 6 having a hook 5 fixed to its lower end is supported outside the end plate frame 4. The end plate 3 is suspended by a chain 7 suspended from the hook 5. The up and down movement of the end plate 3 is controlled by cutting a screw into the axis of a disk-shaped handle 8 rotatably supported on a support member for the screed 6, and screwing the screw 6 into the handle 8.
This is achieved by the rotation of the screw 6 moving up and down.

The conventional height adjustment device for the end plate 3 is constructed as described above, and has the disadvantage that if there is a guardrail on the roadside during paving, an unpaved portion remains as much as the handle 8 protrudes from the width of the end plate. had.

Purpose of the invention The object of the invention is to provide an asphalt finish that does not leave unpaved areas even when structures such as guardrails are present on the roadside.

Structure of the invention: A screw for height adjustment is installed inside an outer pipe penetrating the upper surface of the end plate frame, and an inner pipe with a hook fixed to the lower end is loosely inserted into the outer pipe and screwed together with the screw. The end plate is moved up and down by rotating a handle which is rotatably mounted coaxially to a rotating shaft protruding from the outer pipe of the end plate, and also serves to prevent rotation by tilting the handle.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 3 to 6. In the figure, 1 is a screed device towed by the vehicle body, 2 is a screed plate, 4 is an end plate frame, and the end plate 3 is provided between the screed plate 2 and the end plate frame 4, and is fixed to the screw shaft 9'. It is provided to maintain the casting width of the composite material 10 pushed out toward the screed side by the screw 9 and to form an end surface. Further, a height adjustment device 11 for vertically moving the end plate 3 is installed upright on the upper surface of the end plate frame 4, and FIG. 5 shows a sectional view of the height adjustment device 11 in this embodiment. In the figure, the outer pipe 12 is a square pipe, and the inner pipe 13 is a pipe with a square flange 16 fixed to its upper end to prevent rotation. The outer pipe 12 is installed through the end plate frame 4, and the inner pipe 13, which has a hook 14 fixed to its lower end, is loosely inserted into the outer pipe 12 from below, and the screw 15 housed in the outer pipe 12 and the inner pipe are inserted into the outer pipe 12 from below. 13 and the flange 16 at the upper end thereof are screwed together. Furthermore, the outer pipe 12
A rotating shaft 17 of a screw 15 installed in the outer pipe 12 extends upwardly from a flange 18 fixed to the upper end of the outer pipe 12, and a bracket portion 20 of a handle 19 is rotatably attached to the rotating shaft 17 via a pin 21. In addition to being pivotally mounted, a hole 22 on the bracket side of the pivoting portion is an elongated hole 22 parallel to the axis of the rotating shaft 17. Thereby, the handle 19 can be pulled up along the elongated hole 22 and then rotated and folded. (6th
Note that the end plate 3 is moved up and down by rotating the screw 15 with the handle 19 (state shown in the figure). That is, the handle 19
When the inner pipe 13 is rotated, the inner pipe 13 screwed onto the screw 15 moves up and down, and the end plate 3 suspended by the hook 14 at the lower end of the inner pipe 13 is also moved up and down in conjunction. Further, by tilting the handle 19 and making it contact the side wall of the outer pipe 12, which is a rectangular pipe, rotation of the handle 19 is prevented.

Effects of the invention According to the invention, the outer pipe of the end plate height adjustment device is formed of a square pipe, and is erected on the end plate frame, and the handle is made tiltable. There are no parts that protrude into the road, so no unpaved parts are left on the road shoulder. Therefore, there is no need for repair work by workers, and the efficiency of paving work can be greatly improved. Furthermore, the tilted state of the handle has the effect of preventing the handle from rotating, and provides excellent effects such as being able to fix the end plate at a constant height without providing any other special stopper.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional screed device, Figure 2
The figure is a partial plan view of FIG. 1, FIG. 3 is a side view of this embodiment, FIG. 4 is a partial plan view of FIG. 3, FIG. 5 is an enlarged sectional view of this embodiment, and FIG. FIG. 3 shows a side view of the embodiment in a state where the handle is folded down. DESCRIPTION OF SYMBOLS 1...Screed device, 3...End plate, 4...End plate frame, 10...Mixture material, 11...Height adjustment device, 12...Outer pipe,
13... Inner pipe, 15... Skrill, 19...
Handle, 22...long hole.

Claims (1)

[Scope of utility model registration request] A screed device that creates a paved surface is towed at the rear of the vehicle body, and an end plate that can move up and down is arranged between both ends of the screed plate provided at the bottom of the screed device and the end plate frame,
In an asphalt finisher in which the end plate is suspended by a chain suspended from the end plate frame, an outer pipe is inserted through the upper surface of the end plate frame, and an inner pipe having a chain hook at the lower end is provided inside the outer pipe. A screw screwed to the pipe is provided inside, a rotating shaft coaxial with the screw is provided protruding from the upper surface of the outer pipe, a crank-shaped handle is pivotally attached to the rotating shaft via a pin, and the handle is folded. An end plate height adjustment device for an asphalt finisher.