JPH0748810A - Hopper - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to take sufficient lateral extension of the hopper wing, and it is also possible to make the above-mentioned overhang smaller if necessary, and to adjust these overhangs. (EN) Provided is a hopper device capable of rotating a hopper wing upward by a single actuator. A left and right hopper wing 9 having inner ends attached to left and right positions sandwiching a feeder 11 of a vehicle body 2 of an asphalt finisher 1 is pivotable with inner ends pivotally attached to left and right positions of the vehicle body 2 sandwiching the feeder 11. Lower wing 13
And an inner wing pivotally attached to an outer end of the lower wing 13 so that the upper wing 14 is rotatable with respect to the lower wing 13.
A stopper 24 is provided between the wings 13 and 14 for defining a turning limit above the upper wing 14, and an actuator 21 is installed between the vehicle body 2 and the upper wing 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper device mounted on a construction vehicle such as an asphalt finisher,
In particular, a hopper wing provided on the left and right of a feeder that moves a composite material such as asphalt to the rear is composed of an upper wing and a lower wing, and the tip of an actuator for turning these is connected to the upper wing.

[0002]

2. Description of the Related Art As a conventional technique of this kind of hopper device, for example, there is one disclosed in Japanese Utility Model Publication No. 61-31058. This hopper device of the prior art is a feeder that moves the mixture toward the rear part in the widthwise center of the vehicle body that constitutes the asphalt finisher, and inner ends are attached to the left and right positions of the vehicle body that sandwich the feeder. It comprises left and right hopper wings that can be raised and lowered toward the center in the width direction, and receives a mixture supplied from a dump truck or the like in a hopper device, and the hopper wing is swung upward and inward. The composite material is sent to the feeder by increasing the distance, and the composite material is transferred by a predetermined amount to the rear screed device and laid on the road surface. At this time, the hopper wing is swung upward and inward by a cylinder device installed between the vehicle body and the left and right hopper wings to move the mixture on the hopper wing onto the feeder.

[0003]

By the way, as the hopper device, it is preferable that the hopper wing is largely projected outward in the left and right directions so that the mixture supplied from a dump truck or the like can be received without omission. However, depending on the mode of work, there are conflicting requirements that the hopper wing is preferably narrow in the left and right, for example, when there is an obstacle near the movement path of the hopper device. Therefore, looking at the conventional technique, there has been a problem in that it is not possible to sufficiently secure the left and right overhanging dimensions by trying to satisfy all the conflicting requirements.

Also, in an attempt to solve such a problem,
Technology has also been developed in which the hopper wing is composed of a lower wing that is pivotally attached to the vehicle body in a freely rotatable manner, and an upper wing that is supported at the outer end of the lower wing, and the upper wing is overhanged more than the lower wing. But,
According to this, since the lower wing is turned by the cylinder device that is installed between the vehicle body and the lower wing, when the lower wing is turned upward, the upper wing that is overhanging largely protrudes upward. Then, there is a new defect that the front view of the driver is obstructed, and if the lower wing is folded with respect to the upper wing, an extra structure and work are required for that.

The present invention solves all of the problems of the prior arts, and it is possible to sufficiently set the lateral extension of the hopper wing, and to reduce the overhang dimension as necessary. It is also possible to
Moreover, it is an object of the present invention to provide a hopper device capable of adjusting these overhanging dimensions and turning the hopper wing upward by a single actuator.

[0006]

SUMMARY OF THE INVENTION A hopper device of the present invention has a feeder which is located in the center of the vehicle body in the width direction and which moves the mixture toward the rear, and an inner end which is attached to the left and right positions of the vehicle body sandwiching the feeder. And a left and right hopper wing that can be raised and lowered toward the center of the vehicle body in the width direction, and is premised on a hopper device configured to be able to transfer the mixture on the hopper wing onto a feeder. Is
The left and right hopper wings have a lower wing whose inner end is pivotally attached to the left and right positions of the vehicle body sandwiching the feeder, and which is rotatable, and an inner end which is pivotally attached to the outer end of the lower wing to turn with respect to the lower wing. Free upper wing, and, between the lower wing and the upper wing,
Characterized by forming a stopper that determines the turning limit of the upper wing with respect to the lower wing toward the center of the width direction of the vehicle body, and installing an actuator for turning the upper and lower wings between the vehicle body and the upper wing. There is.

Further, it is more preferable to provide a lock mechanism for fixing the relative angle of both wings between the lower wing and the upper wing.

[0008]

[Operation] Since the hopper wing is composed of the lower wing and the upper wing, and the actuator is installed between the vehicle body and the upper wing, when the actuator is operated, first the upper wing is directed toward the inside in the width direction of the vehicle body. As it rises, it turns to the lower wing, and the width of the hopper wing is reduced while moving the internal mix in the feeder direction. Therefore, not only when the composite material in the upper wing is moved to the feeder via the lower wing, but also when there is an obstacle ahead, at least one of the left and right upper wings is turned as described above. By doing so, work can be facilitated.

When the upper wing turns and reaches the turning limit with respect to the lower wing, the stopper functions and the turning of the upper wing with respect to the lower wing ends.
If the actuator continues to operate as it is, the power of the actuator is transmitted to the lower wing through the upper wing, and the lower wing turns together with the upper wing and turns inward in the width direction of the vehicle body.
The mix on both wings is fed onto the feeder.

At this time, when the lower wing is turning, the upper wing is turning to the turning limit with respect to the lower wing, and therefore the upper wing is not in a state of being largely projected upward, so that the driver's view is not obstructed. Further, if a lock mechanism for fixing the relative angle of both wings is provided between the lower wing and the upper wing, the upper wing and the lower wing are integrated while maintaining mutually selected angles. Therefore, when the actuator is actuated, the lower wing and the upper wing, which are integrated, turn around the lower end pivot portion of the lower wing while moving upward inward in the width direction of the vehicle body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment is an example in which the hopper device of the present invention is applied to an asphalt finisher. FIG. 1 is a side view in which the driver's cab at the rear end of the asphalt finisher 1 is omitted and the left side is the front side. The vehicle body 2 is provided with front wheels 3 which are steering wheels and rear wheels 4 which are drive wheels, a hopper device 5 is mounted on the front half of the vehicle body 2, and a bonnet 6 is provided on the rear half thereof. An instrument panel 7 and a steering wheel 8 of the driver's cab are provided on the rear side. FIG. 3 is a front view of the asphalt finisher 1. Particularly, the vehicle body 2 and the hopper device 5 are shown by solid lines, and the left hopper wing 9 shown on the right side in FIG.
Is shown in the open state, and the right hopper wing 9 appearing on the left side is shown in the closed state. In Fig. 3, the right side of the car body appears on the left side, and the left side of the car body appears on the right side. Therefore, in order to prevent confusion in the expression, in the case of simply expressing the left and right without adding a note below, asphalt This means the left and right in FIG. 3 when the finisher 1 is viewed from the front.

The feeder 1 is provided at the center of the front half of the vehicle body 2 in the width direction.
1 is provided, and the feeder 11 is, as is well known and commonly used, a flat guide surface 12 extending in the front-rear direction of the vehicle body 2 and an upper outward path on both left and right sides of the guide surface 12 which are moved backward. A parallel endless chain (not shown) and a moving bar (not shown) that is installed between the chains and moves the guide surface 12 toward the rear of the vehicle body 2 by the chain to transfer the mixture on the guide surface 12. Consists of. Further, a screw (not shown) is arranged on the rear side of the feeder 11 so that the shaft is oriented in the vehicle width direction, and the mixed material is uniformly supplied in the vehicle width direction by this screw.

Hopper wings 9 are arranged on both sides of the feeder 11 in the vehicle width direction. The hopper wing 9 is composed of a lower wing 13 and an upper wing 14. The inner ends of the lower wing 13 are located on the left and right sides of the feeder 11 in the vehicle body 2 and are hinged toward the center of the vehicle body 2 in the width direction. The rising plate 16 is pivotally attached so as to freely swing up and down, and a rising plate 16 is fixed to the rear portion by welding or the like. Further, the inner wing of the upper wing 14 is pivotally attached to the outer end of the lower wing 13 by a hinge 17 so as to swing up and down toward the center of the vehicle body 2 in the width direction, and at the rear end thereof. Also, the rising plates 18 are fixed by welding or the like, and the rising plates 16, 18 are in sliding contact with each other due to the relative turning of the wings 13, 14.

A bracket 19 is projectingly provided on the lower surface of the upper wing 14, and a cylinder device 21 is provided between the bracket 19 and the lower part of the vehicle body 2. By expansion and contraction of the cylinder device 21, the upper wing 14 and the hinge 17 are centered. It is designed to rotate. Expansion and contraction of the cylinder device 21 can be controlled in the driver's seat of the asphalt finisher 1. The cylinder device 21 constitutes an example of an actuator which is a constituent feature of the invention. The fact that the cylinder device 21 is connected to a fluid pressure supply source for operating the cylinder device 21 is similar to a general hydraulic or pneumatic operating circuit, and therefore detailed description thereof will be omitted.

Between the upper part of the rising plate 16 of the lower wing 13 and the lower part of the rising plate 18 of the upper wing 14, as shown in FIG. 4 which is an AA arrow view of FIG. A lock mechanism for fixing the relative angle of 14 is provided, and this lock mechanism is composed of a lock arm 22 installed between the upper part of the rising plate 16 and the lower part of the rising plate 18. The upper end of the lock arm 22 is externally fitted to the nut 16a fixed to the rising plate 16 as shown in an enlarged view in FIG. 5 which is a sectional view taken along the line BB of FIG. It is locked out.

The lower end of the lock arm 22 is C
As enlargedly shown in FIG. 6 which is a sectional view taken along the line C, a bolt 25 with a handle 25a is screwed into a nut 18a fixed to a rising plate 18 and a stopper plate 24 fixed thereto. There is. Thus, the lock arm 22 integrates the lower wings 13 and 14 by fixing the relative angle between the lower wings 13 and the upper wings 14.

If the bolt 25 is inserted midway in the longitudinal direction of the lock arm 22 and screwed into the nut 18a, the upper wing 14 can be fixed to the lower wing 13 at another angle. Also, the lock arm 2
2 is not used, that is, when the upper wing 14 is rotatable relative to the lower wing 13,
The lock arm 22 may be set to the position shown by the chain line in FIG. 4, and the lock arm 22 may be fixed to the rising plate 16 using the bolts 23 and 25.

Further, the rising plate 1 of the lower wing 13
Since the stopper plate 24 is fixed to the rear surface of the rising plate 18 of the upper wing 14 which is in sliding contact with the front surface of the upper wing 6, when the upper wing 14 turns upward with respect to the lower wing 13, the turning is performed. At the limit, the stopper plate 24 comes into contact with the end surface of the rising plate 16, and thus the upper wing 14 is prevented from further pivoting with respect to the lower wing 13. Therefore, the stopper plate 24 and the end surface of the rising plate 16 form a stopper which is a constituent feature of the present invention.

Although omitted in FIG. 3,
At the front end of the vehicle body 2, two left and right horizontal rollers 28 are rotatably supported by a bracket 27 pivotally mounted by a vertical shaft 26. The horizontal roller 28 pushes the rear wheel of the leading dump truck to push the asphalt finisher 1 forward. It is designed to move forward. Further, on the horizontal roller 28, there is an auxiliary wing 29 whose rear end is pivotally attached to the vehicle body 2 and whose front end turns up and down. The auxiliary wing 29 is connected to the lower wing 13 by a chain 31.
The upper wing 29 is pulled by the chain 31 and the auxiliary wing 29 is also turned upward. Such horizontal roller 28 and auxiliary wing 29 are well known and conventional.

Furthermore, hooks 32 are projected from the upper ends of the rising plates 16 of the left and right lower wings 13, so that the lower wings 13 turn to the uppermost position.
It is designed to be maintained by hanging a chain 33 between both hooks 32. Thus, in the hopper device 5, the turning of the left and right lower wings 13 and the upper wings 14 can be controlled only by expanding and contracting the left and right cylinder devices 21.

That is, initially, as in the lower wing 13 and the upper wing 14 on the right side of FIG. 3, the cylinder device 21 is contracted on both the left and right sides so that both wings 13 and 14 are expanded to the side of the vehicle body 2. deep. In this state, when a mixture material such as asphalt is received from the preceding dump truck immediately before, the hopper device 5 is in a state in which the hopper wing 9 is greatly expanded, and therefore the mixture material can be reliably received. The hopper wing 9 is moved as it is moved backward from the composite material in the central portion by the feeder 11 and laid on the ground.
In order to move the upper composite material onto the feeder 11, the upper wing 14 is first swung upward. At this time, when the cylinder device 21 is gradually extended, the upper wing 14 turns around the hinge 17 while moving upward in the vehicle width direction central direction, the upper wing 14 is gradually closed, and the width of the hopper wing 9 is gradually narrowed. Upper wing 14
The upper composite material moves onto the lower wing 13, and the composite material on the lower wing 13 moves onto the feeder 11 and is continuously supplied to the ground by the feeder 11.

When the upper wing 14 reaches the turning limit,
The stopper plate 24 of the upper wing 14 is the lower wing 1.
The lower wing 1
Although the turning of the upper wing 14 with respect to 3 is completed, if the extension of the cylinder device 21 is continued as it is, the upper wing 14 is further turned by the cylinder device 21 and pushes the lower wing 13 from the outside to the inside, and thus the upper wing 14 is rotated. The lower wing 13 turns integrally with 14 toward the inner side around the hinge 15. As a result, the composite material in the upper wing 14 and the lower wing 13 is supplied onto the feeder 11 and both wings 13, 14 are in the most closed state. This is the state of the lower wing 13 and the upper wing 14 on the left side in FIG.

In this state, the upper wing 14 is in a closed state with respect to the lower wing 13, so that the upper wing 14 does not largely project above the bonnet 6 as shown in FIG. For this reason, the driver's forward view is secured, so that smooth work can be performed. Even when the asphalt finisher 1 is transported by truck, the width and height of the load can be reduced by mounting the asphalt finisher 1 on the cargo bed in this form, which is also suitable for transportation.

When the upper wing 14 is not swung with respect to the lower wing 13, the lock arm 22
May be fixed to the upper wing 14 as shown in FIGS. In this case, the relative angles of both wings 13, 14 are always the same, and the hopper wing 9 as a whole has a hinge 15.
It will turn around. In the above description, the left and right lower wings 13 and the upper wing 14 are symmetrically operated, but the left and right are independently operated by individually controlling the cylinder devices 21 as necessary. It is also possible. For example, the left upper wing 14 with an obstacle can be swung upward to close the obstacle to avoid the obstacle, and the right upper wing 14 can be left open to work a certain section.

Thus, by simply operating only the expansion and contraction of the cylinder device 21 in the driver's cab, both the opening and closing of the upper wing 14 and the entire opening and closing of the upper wing 14 including the lower wing 13 can be performed. it can. Although the cylinder device 21 is used as the actuator in this embodiment, the upper wing 14
It is also possible to use other extension drive mechanism or the like as long as it is an actuator that moves the bracket 19 of FIG. In addition, although the present invention is applied to the asphalt finisher 1 in this embodiment, it is needless to say that the present invention may be applied to a hopper device for supplying another mixture.

[0026]

As described above, according to the present invention, the hopper wing is composed of the lower wing and the upper wing, and the stopper is interposed between both wings, while the actuator is provided between the vehicle body and the upper wing. Since it is installed on the hopper, the overhanging dimension of the hopper wing to the left and right can be sufficiently taken, and the overhanging dimension can be reduced if necessary. The turning to and from can be done by a simple actuation of a single actuator.

Further, since the upper wing is in a closed state of the turning limit with respect to the lower wing when the lower wing is turning upward, it is also possible to prevent the outer upper wing from hindering the driver's view. Further, if a lock mechanism for fixing the relative angle of both wings is provided between the lower wing and the upper wing, the upper wing and the lower wing are integrated while maintaining mutually selected angles. Therefore, when the actuator is actuated, the lower wing and the upper wing, which are integrated with each other, are pivoted while rising toward the inner side in the width direction of the vehicle body around the lower end pivot portion of the lower wing, and are composed of the lower wing and the upper wing. It is also possible to simplify the operation of the hopper wing that is used, which is suitable for work in a wide area without obstacles.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment.

FIG. 2 is a plan view showing the hopper device of FIG.

FIG. 3 is a front view of the embodiment.

FIG. 4 is a view taken along the line AA of FIG.

5 is an enlarged cross-sectional view taken along line BB of FIG.

6 is an enlarged sectional view taken along line CC of FIG.

[Explanation of symbols]

 1 Asphalt Finisher 2 Vehicle Body 5 Hopper Device 6 Bonnet 9 Hopper Wing 11 Feeder 13 Lower Wing 14 Upper Wing 15, 17 Hinges 16, 18 Rising Plate 19 Bracket 21 Cylinder Device 22 Lock Arm 24 Stopper Plate

Claims (2)

[Claims] 1. A feeder, which is located at the center of the vehicle body in the width direction, and which moves the mixture toward the rear, and inner ends attached to the left and right positions of the vehicle body that sandwich the feeder, and which can be undulated toward the center of the vehicle width direction. With the left and right hopper wings,
In a hopper device configured to be able to transfer the mixture on the hopper wing onto a feeder, the left and right hopper wings have a lower wing whose inner end is pivotally attached to the left and right positions of the vehicle body sandwiching the feeder, An inner wing is pivotally attached to an outer end of the lower wing, and the upper wing is rotatable with respect to the lower wing, and between the lower wing and the upper wing, a body of the upper wing with respect to the lower wing is formed. A hopper device comprising a stopper that defines a turning limit toward the center in the width direction, and an actuator that swings both the upper and lower wings between the vehicle body and the upper wing. 2. The hopper device according to claim 1, further comprising a lock mechanism provided between the lower wing and the upper wing for fixing a relative angle between the two wings.