JPH0583010U - Asphalt finisher hopper - Google Patents

Abstract

(57) [Summary] [Purpose] When dumping asphalt mix from a dump truck to the hopper of an asphalt finisher,
It is an object to improve the hopper so that the hopper can easily receive the dump that is retracted. [Structure] In an asphalt finisher, a pair of left and right front hoppers 5 which are lower than the rear hopper 6 by one step and which rotate around a support shaft 7 in the front-rear direction by a hydraulic cylinder 8 are provided at the front of the hopper. It was

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improved asphalt finisher.

[0002]

[Prior Art]

 As shown in FIG. 6, the hopper of the conventional asphalt finisher is provided with supporting shafts b of the folds on both sides of the conveyor c in parallel with the conveyor c, and its sectional shape is a two-dot chain line in FIG. It has a bowl shape as shown in. The shape and structure of the hopper a are restricted by the diameter and the position of the front wheel d, and the connection with the dump car is also restricted.

Further, depending on the type of dump truck, as shown in FIG. 5, there is a dump truck having a low ground clearance h at the lower edge of the rear bumper e and a wide width, which is close to the rear surface of the vehicle. Therefore, the rear bumper e of the dump car interferes with the front surface of the hopper of the asphalt finisher, and the dump car cannot be inserted all the way into the hopper. It was

[0004]

[Problems to be solved by the device]

 When dumping asphalt mixture from a dump truck to a hopper of an asphalt finisher, it is an object to improve the hopper so that the hopper can easily receive the dump car.

[0005]

[Means for Solving the Problems]

 In the asphalt finisher, a pair of left and right front hoppers 5 which are lower than the rear hopper 6 by one step and which rotate in the front-rear direction around the support shaft 7 by a hydraulic cylinder 8 are provided at the front of the hopper. Further, for a conventional vehicle having a high rear bumper, a retractable bumper stopper or a lifting bumper stopper 17 is provided inside the front hopper 5.

[0006]

【Example】

 In summary, the present invention receives the low dumper of the rear bumper 2a on the hopper-1 of the asphalt finisher as shown in FIG. 1, so that the front hopper 5 of the hopper and the front plate 9 ( 2) which is one step lower.

1 to 3, reference numeral 1 is a hopper of an asphalt finisher. The reference numeral 2 is a low dumper of the rear bumper 2a, which is arranged so that the dump truck 2 moves back into the hopper 1 and abuts against the bumper stopper 3 to stop it. The bumper stopper-3 is configured to rotate around the support shaft 4 and hold it at the position A in FIG. 3 (a).

Reference numeral 5 denotes a front hopper having an L-shaped longitudinal section, which is one step lower than the rear hopper 6. Reference numeral 7 denotes a support shaft of the front hopper-5, and the front hopper-5 pivots upward about this as a fulcrum, as shown by the chain double-dashed line in FIG. The rotation is driven by the hydraulic cylinder 8. A front plate 9 is attached to a chassis of an asphalt finisher by a support shaft 10, and a tip portion of the front plate 9 is supported by a chain 11 on a rear hopper 6.

The rear hopper 6 is closed around the support shaft 13 by the hydraulic cylinder 14, and at the same time, the front hopper 5 is rotated upward by the hydraulic cylinder 8 about the support shaft 7 (two-dot chain line in FIG. 2). ). When the front hopper 5 rotates upward, the front plate 9 is pulled by the rear hopper 6 through the chain 11 and rotates upward (two-dot chain line). Thus, the spilled material on the front hopper 5 and the front plate 9 is dropped on the conveyor 12.

FIG. 3 shows a case where the ground clearance of a conventional dump truck is high. When the ground clearance is high like this, by folding the bumper stopper-3 at the point B as shown in Fig. 3 (a), the dump truck can be installed at the back of the hopper in the same manner as the conventional procedure for loading the material. Up to now, the rear wheel tire 15 of the dump truck hits the push roller 16 and is pushed back to allow the mixture material mounted on the dump truck to be dumped deep inside the hopper. In this case, since the mixture spilled on the front hopper is small, it is not necessary to raise the front hopper very much.

FIG. 4 shows an example of a lifting bumper-stopper. Reference numeral 17 denotes a stopper pin with a handle, which is set at a height position along the guide pipe 19 by a ball plunger 18. The bumper stopper is not limited to the lifting type as shown in FIG. 4 and the tilting type as shown in FIG.

[0012]

【effect】

 In the asphalt finisher, the front part of the hopper-1 is provided with a pair of left and right front hoppers 5 which are lower than the rear hopper 6 by one step and which are rotated around the support shaft 7 by the hydraulic cylinder 8 in the front-rear direction. Even a dump truck having a bumper with a low ground clearance can be easily retracted to transfer the asphalt mixture to the finisher. Further, the front plate 9 is further provided under the front hopper, and the front hopper 9 is lifted through the chain together with the closing action of the rear hopper, so that no mixture material remains in the front. Further, even in the case of a conventional bumper with a high ground clearance, a stopper is provided at the back of the hopper, which is one step lower, so that the asphalt mixture can be moved backwards without anxiety. As described above, it became possible to put the mix material into the deep part of the hopper with both a dump truck with a high ground clearance and a dump truck with a low clearance.

[Brief description of drawings]

FIG. 1 is a front side view of an asphalt finisher according to the present invention.

FIG. 2 is a detailed front side view of the asphalt finisher.

FIG. 3 is an embodiment in which a bumper stopper is provided inside a front hopper.

FIG. 4 is an embodiment similarly provided with a lifting bumper-stopper.

FIG. 5 shows the front part of a known asphalt finisher.

FIG. 6 is a front front view of the asphalt finisher.

[Explanation of symbols]

1 hopper-2 dumper-2a rear bumper-3 bumper-stopper-4 support shaft 5 front hopper-6 rear hopper-7 support shaft 8 hydraulic cylinder 9 front press
10 Shaft 11 Chain 12 Conveyor 13 Spindle 14 Hydraulic cylinder 15 Rear wheel tire 16 Fush roller 17 Stopper pin 18 Ball plunger 19 Guide pipe

Claims (3)

[Scope of utility model registration request] 1. In an asphalt finisher, the front portion of the hopper (1) is lower than the rear hopper (6) by one step, and the hydraulic cylinder (8) rotates in the front-rear direction around the support shaft (7). A hopper for an asphalt finisher, which is provided with a pair of left and right front hoppers (5). 2. A hopper for an asphalt finisher according to claim 1, wherein a retractable bumper stopper (3) is provided inside the front hopper (5). 3. A hopper for an asphalt finisher according to claim 1, further comprising a lifting type bumper stopper (17) provided inside the front hopper (5).