JPS6218411Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a hopper for a truck mixer vehicle.

The hopper of a truck mixer vehicle is attached to the intake port at the rear of the drum mounted on the mixer vehicle, and guides the ready-mixed concrete (hereinafter abbreviated as "ready-mixed concrete") introduced from the chute of a concrete plant into the drum. To load ready-mixed concrete onto the truck mixer mentioned above at a concrete plant,
Moving the vehicle body backwards under a charging chute installed at a required height of the concrete plant,
The hopper is moved below the input port of the input chute, and ready-mixed concrete is charged from the input port.

Incidentally, in recent years, truck mixers have come to operate by receiving ready-mixed concrete from several concrete plants, rather than operating by receiving ready-mixed concrete from only one concrete plant. However, the size and structure of the input chute of a concrete plant differs slightly depending on the plant, and the height of the input port varies, so when moving the mixer truck under the input chute, The problem is that the hopper gets caught in the input chute, making it impossible to move the hopper below the chute.

Conventionally, the upper end of the hopper is cut to match the low input chute, thereby substantially lowering the height of the hopper. A new problem arises: it is easy to spill outside.

This invention solves the above conventional problems by forming a notch on the periphery of the rear opening of the hopper body of a mixer truck, and attaching an elastic edge plate to the periphery of this notch to close the notch. To provide a hopper for a truck mixer vehicle, which allows ready-mixed concrete to be charged without any hindrance by moving the hopper body below the charging chute at any height of a concrete plant.

This invention will be explained below based on embodiments shown in the drawings.

1 to 4 show an embodiment of this invention, in which A shows a truck mixer vehicle having a tilting type rotary drum 1, and a rotary drum disposed at the rear of the mixer vehicle A. A hopper main body 2 is supported on a base 3 and is connected to an intake port (more specifically, a charging cylinder) of the rotary drum 1 and has an opening 2a formed upward. A notch 2b having a height of about a fraction of the height of the hopper body 2 is provided at the periphery of the rear opening of the hopper body 2.
is formed. The width B of this notch 2b (the width along the width direction of the mixer truck A) is the width of the input section 4a at the lower end of the ready-mixed concrete input chute 4 of the ready-mixed concrete plant (the width of the input section 4a along the width direction of the vehicle body of the mixer truck A). ) has been made larger. Then, around the periphery of the notch 2b of the hopper main body 2, a soft elastic edge plate 2A having a shape-retaining property such as an alkali-resistant rubber material that closes the notch 2b is attached to the upper side of the elastic edge plate 2A. The notch 2b is bolted from the inside of the hopper main body 2 in a closed state, with the height matching the upper side of the front opening periphery 2C.

Next, the operation of this device constructed as described above will be explained.

To load ready-mixed concrete onto truck mixer A at a concrete plant, position mixer A so that the hopper body 2 of mixer A is positioned to the side of the input chute 4 of the concrete plant, as shown in Figure 1. The mixer truck A is moved backward from the position in the direction shown by arrow C in FIG.

Here, the lower end of the input chute 4 is connected to the elastic edge plate 2A.
If it is lower than the upper side and higher than the bottom side of the notch 2b, the lower end of the charging chute 4 will abut against the elastic edge plate 2A as the mixer truck A moves backward. Then, the elastic edge plate 2A is pushed by the lower end of the input chute 4 and deforms, allowing the input chute 4 to pass over the elastic edge plate 2A. When the lower end of the input chute 4 passes through the elastic edge plate 2A, the elastic edge plate 2A returns to its original shape. The mixer truck A is stopped with the input part 4a of the input chute 4 facing the inner surface of the hopper body 2, and fresh concrete is loaded into the hopper body 2 from the discharge chute 4. When charging fresh concrete, the lower end of the discharge chute 4 is connected to the front opening periphery 2c of the hopper main body 2 and the elastic edge plate
Since it is located below the upper side of A, there is almost no spillage or scattering of ready-mixed concrete to the outside of the hopper main body 2 during charging. After loading the fresh concrete, the mixer truck A is moved forward to separate the hopper body 2 from the discharge chute 4. Here, the elastic edge plate 2 is attached to the discharge chute 4.
A contacts again, but the elastic edge plate 2 is deformed and passes under the discharge chute 4, and after passing, it returns to the shape before deformation.

It goes without saying that if the lower end of the charging chute 4 is higher than the upper side of the elastic edge plate 2A provided around the rear opening of the hopper body 2, the mixer truck A can be moved to load the ready-mixed concrete as in the conventional case. stomach. When charging fresh concrete from the input chute 4 to the hopper main body 2, if the upper end of the hopper is simply cut out like a conventional hopper, the upper end of the hopper is low and the ready-mixed concrete is likely to scatter or spill. Although a problem arises, in the hopper main body 2 of this invention, the notch 2b is closed by the elastic edge plate 2A, so there is little scattering or spillage of ready-mixed concrete.

In other words, even if the height of the lower end of the input chute 4 is slightly different, the hopper main body 2 is connected to the mixer vehicle A.
The input portion 4a of the discharge chute 4 can be exposed into the hopper main body 2 by simply moving the hopper. Therefore, there is no problem even if mixer truck A receives ready-mixed concrete from several concrete plants.

By the way, the elastic edge plate 2A may have any structure as long as it has a shape-retaining property that easily deforms when it touches the discharge chute 4 and restores its shape when separated from the discharge chute 4.

As explained above, this invention forms a notch with a width larger than the width of the ready-mixed concrete input section of the input chute of a concrete plant on the periphery of the rear opening of the hopper body of a mixer truck, and the hopper body has an elastic force that closes this notch. Since the edge plate is attached, even if the input part receives ready-mixed concrete from the input chute which is lower than the rear opening periphery of the hopper body, if the input part is at a higher position than the bottom plate of the notch, By driving the mixer truck and moving the hopper body below the input section, the elastic edge plate can be deformed to pass through the input section, and the input section can be exposed inside the hopper body. , ready-mixed concrete can be loaded. Furthermore, even if ready-mixed concrete is received from a charging chute whose position is higher than the periphery of the rear opening of the hopper body, it is of course possible to bring the charging part toward the opening surface of the hopper body by performing the same operation as above. be. Therefore, it is now possible to easily feed fresh concrete into the hopper body even from various discharge chutes with slightly different input heights, and mixer trucks can easily receive ready-mixed concrete from multiple concrete plants. become. Furthermore, since the notch has a closed elastic edge plate, when pouring fresh concrete into the hopper body from the input chute, unlike conventional hoppers, where the upper edge of the hopper is low and the ready-mixed concrete easily scatters, this hopper has a closed elastic edge plate. The invented hopper hardly causes ready-mixed concrete to scatter or spill outside the hopper itself.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
2 is a perspective view of the main parts, FIG. 3 is a sectional view of the main parts, and FIG. 4 is a side view of the main parts. A... Truck mixer vehicle, 2... Hotsupa body,
2A...Elastic edge plate, 2a...Opening, 2b...Notch, B...Width, 4...Insertion chute, 4a...
Input section.

Claims (1)

[Scope of utility model registration request] A notch with a width larger than the width of the input section at the lower end of the ready-mixed concrete input chute of a concrete plant is formed around the rear opening of the hopper body provided at the rear of the truck mixer vehicle. A soft elastic edge plate with shape,
A hopper for a truck mixer vehicle, characterized in that it is installed with the notch closed.