JP2500872Y2 - Asphalt finisher with swing type auxiliary screen - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] When paving with an asphalt finisher with a width greater than the maximum width, install auxiliary screens on the left and right expansion screens each time, and remove it after completion of construction. It is loaded on an asphalt finisher or a carrier and is being moved. Even in the auxiliary screen rotated by a hinge, parts such as a compaction mechanism are attached and detached when the auxiliary screen is attached to the expansion / contraction screen, so that it is necessary to remove the cover and the like. The present invention relates to an improvement of an asphalt finisher equipped with such a swing type auxiliary screen.

[0002]

2. Description of the Related Art Conventionally, the maximum paving width of a screen device with an expansion / contraction screen, which can continuously change the paving width of an asphalt finisher, is not more than twice the minimum paving width.
In the case of paving with a paving surface having a maximum paving width or more, as shown in FIG. 1, an auxiliary screen 6 was attached to the end surface of the expansion / contraction screen 5 by lifting it manually or by a crane or the like. For this reason, the attachment / detachment of the auxiliary screen 6 requires labor of an operator and a lot of time is required for the attachment adjustment. In addition, even in the auxiliary screen of the structure in which it is rotated by a hinge or the like for attachment / detachment and storage, the compaction device is not connected to the main screen by a one-touch mechanism, so the auxiliary screen is attached / detached. It took time, and it was impossible to drastically reduce the work time.

[0003]

[Problems to be Solved by the Invention] According to the present invention, after the auxiliary screen in the asphalt finisher is rotated by a hinge, the compaction mechanism is structured so that it can be connected by a one-touch joint. And to significantly improve the labor of workers.

[0004]

[Means for Solving the Problems] When an auxiliary screen 6 is mounted behind a telescopic screen 5 of an asphalt finisher via a hinge pin 7 to expand the paving width by more than the amount of expansion and contraction of the telescopic screen 5. Rotates the auxiliary screen 6 laterally around the hinge pin 7 to rotate the hinge plate 10
Was used by being fastened and fixed to the expandable screen 5, and the compacting mechanism of the expandable screen 5 and the compacting mechanism of the auxiliary screen 6 were connected by a one-touch joint 20.

[0005]

EXAMPLE FIG. 2 is a schematic plan view of an asphalt finisher to which the present invention is applied. FIG.
(b) shows the state when the screen is contracted. 1 is a hopper, 2 is a feeder conveyor, 3 is a screw spreader,
It functions so that the asphalt mixture withdrawn to a predetermined pave width is paved to a uniform thickness using the main screen 4 and the expansion screen 5. Further, an auxiliary screen 6 is supported by a hinge pin 7 at the end of the expansion / contraction screen 5.

FIG. 3 shows the auxiliary screen 6 shown in FIG.
FIG. 3 is a partially enlarged view of when the is stored. Telescopic screen 5
The locking tool 8 is provided at the rear of the vehicle, and the auxiliary screen 6 is locked to the locking tool 8.
The hinge plate 10 attached to the side surface of the auxiliary screen 6 is supported by the hinge pin 7 while being locked by the hinge. 4 is a side view of the retractable screen 5 when the auxiliary screen 6 is supported by the hinge pins 7 before the expansion / contraction screen 5 is rotated, and FIG. 5 is a perspective view after the rotation.

The storage state of the auxiliary screen 6 will be described with reference to FIG. Bolts 15 and 16 on the side surface of the auxiliary screen 6
The hinge plate 10 is attached with and the hinge plate 11 is attached to the side surface of the telescopic screen 5 with the bolt 17. The hinge pin 7 supported by the hinge plates 10 and 11 is tilted and lifted up so that the auxiliary screen 6 tilts upward with respect to the horizontal plane (θ = 10 ° in this embodiment). (In this embodiment, the lifting amount is 8 m, for example.
m) Installed.

The attachment state of the auxiliary screen 6 to the telescopic screen 5 will be described with reference to FIG. 5, and the telescopic screen 5 and the hinge plate 10 are fixed by bolts 14. For adjusting the auxiliary screen 6 in the vertical direction, the auxiliary screen 6 is attached to the protruding portion 10 'on the side surface of the hinge plate 10.
Jack bolt 12 downward from the bracket portion 6'of
Is installed. Further, a bolt 15 mounted horizontally on the side surface of the hinge plate 10 for adjusting the inclination of the auxiliary screen 6 in the left-right direction is connected to a bracket portion 6'of the auxiliary screen 6. Further, as a mechanism for lifting the auxiliary screen 6 when it is stored, the rear end of the hinge plate 10 is in contact with the upper surface of the hinge plate 11 so as to incline upward (see reference numeral a in FIG. 5). When the door 6 is rotated, the hinge plate 10 is hinged.
The auxiliary screen 6 is smoothly lifted by rising along the inclined upper surface of the boot 11.

In FIG. 6, after the auxiliary screen 6 is attached to the expansion / contraction screen 5, the auxiliary screen compactor drive shaft 18 is provided.
2 shows a state in which the expansion shaft compaction device drive shaft 19 is connected to the compaction device coupling one-touch joint 20. The one-touch joint 20 includes an expansion screen compaction device drive device 19 and an auxiliary screen compaction device drive shaft 1.
8 is connected at both ends with a universal joint 20a. Although one side of the auxiliary screen 6 has been described above, as shown in FIGS. 2 and 3, the same type is provided symmetrically on the rear left and right sides of the telescopic screen 5.

[0010]

[Operation] Main screen 4 and telescopic screen according to the present invention
When laying a wide road that cannot be laid with Do 5 alone,
Once the auxiliary screen 6 is attached to the expansion / contraction screen 5 with the bolts 12 (FIG. 5) in the vertical direction and the bolts 15 in the left and right tilt directions, adjustments at the time of installation will not be necessary from the next time. Become. Further, even if a step or the like occurs in the attachment of the telescopic screen 5 and the auxiliary screen 6 due to long-term use, the attachment position of the auxiliary screen 6 can be easily readjusted. As for the compaction device, the one-touch joint 20 is used to connect the expansion / shrink side compaction device drive shaft 19 and the auxiliary screen side compaction device drive shaft 18.
Makes connection easy. The current compaction device is as shown in FIG. That is, the auxiliary screen compaction device 18 '
Is structured to be driven by the expansion / contraction screen compaction device 19 'through the connecting bolt 21. In order to fasten the connecting bolt 21, the rod 13 'must be removed and the mold board & strike-off 13 must be removed.
And, in each case, the auxiliary screen compactor 18 '
A lot of time was required for the mounting and adjusting of and the mounting and adjusting work of the mold board and strike off.

[0011]

[Effect] Hinge pin 7 when the auxiliary screen 6 is not used
The auxiliary screen 6 is rotated around the
It becomes possible to move it to the rear of the door 5 and store it. At this time, since the auxiliary screen 6 is attached so as to be inclined upward with respect to the pavement surface and lifted up, the paving surface is not scratched. In this way, the auxiliary screen 6
The installation and storage operations of the auxiliary screen 6 on and from the retractable screen 5 are performed by a very simple operation of simply rotating the auxiliary screen 6, so that the auxiliary screen 6 can be attached / detached, transported and stored greatly. Labor saving and labor saving can be achieved. Also, when attaching or detaching the auxiliary screen 6 to or from the expansion / contraction screen 5,
Since the one-touch joint 20 is used to connect the compaction device, the connection can be easily performed.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a known asphalt finisher.

FIG. 2 is a schematic plan view of an asphalt finisher to which the present invention is applied.

FIG. 3 is an enlarged view showing a storage state of an auxiliary screen.

FIG. 4 is a side view showing a stored state of the auxiliary screen.

FIG. 5 is a perspective view showing a state in which the auxiliary screen is attached to the telescopic screen.

FIG. 6 shows a one-touch joint for connecting a compaction device after attaching an auxiliary screen to the expansion / contraction screen.

FIG. 7 shows a conventional compaction device.

[Explanation of symbols]

1 Hopper 2 Feeder Conveyor 3 Screw Spreader 4 Main Screen 5 Telescopic Screen 6 Auxiliary Screen 7 Hinge Pin 8 Locking Tool 9 Steps 10, 11 Hinge Plate 12 Jack Bolt 13 Mold Board & Strike Off 13 'Rod 14, 15, 16, 17 Bolt 18, 19 Compactor drive shaft 20 One-touch joint 21 Connecting bolt

Claims (1)

(57) [Scope of utility model registration request] 1. An auxiliary screen through a hinge pin (7) behind the telescopic screen (5) of the asphalt finisher.
If the paving width is expanded by more than the expansion / contraction amount of the expansion / contraction screen (5), the auxiliary screen (6) is attached to the hinge pin.
The hinge plate (10) is rotated laterally around (7) and fastened and fixed to the expansion screen (5) for use.
An asphalt finisher having a swing type auxiliary screen, characterized in that the compacting mechanism of the cord (5) and the compacting mechanism of the auxiliary screen (6) are connected by a one-touch joint (20).