JPH0337924Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a truck mixer vehicle used when transporting ready-mixed concrete from a ready-mixed concrete plant to a pouring site.

Truck mixer trucks transport fresh concrete to the pouring site while stirring it with a mixer drum to prevent coagulation and maintain quality.At the pouring site, the fresh concrete is often supplied to concrete pump trucks. At that time, as shown in Fig. 10, the rear part is brought close to the rear part of the concrete pump truck 1, and the discharge chute 2, which is stored in the stowed state during running, is unfixed and rotated to move the concrete pump truck 1 as shown in the figure. After placing the mixer drum 3 on the hopper 1a, the mixer drum 3 is reversed to supply fresh concrete into the hopper 1a.

Incidentally, in the above-mentioned work, the driver of the concrete pump truck 1 or an auxiliary worker is responsible for releasing the storage state of the discharge chute 2 located at the rear of the vehicle and placing it on the hopper 1a. However, the pouring work continues even during the above-mentioned work, and it is preferable that the driver of the concrete pump truck 1 and the auxiliary workers concentrate on the pouring work itself. For this reason,
It is preferable for the driver of the truck mixer vehicle 4 to release the retracted state of the discharge chute 2 and install it on the hopper 1a, but the driver must also move the vehicle backwards, etc. In reality, it was not possible to operate the discharge chute 2 apart from the vehicle.

The present invention has been developed in view of the above circumstances, and provides a truck mixer truck that allows the driver to remotely control the discharge chute while remaining in the driver's seat, thereby increasing the efficiency of pouring work and saving labor. The purpose is to

In order to achieve the above object, the present invention provides an operating cable for changing the position of the exhaust chute, and also provides an operating lever in the driver's seat for towing and operating this operating cable. Equipped with a sensing means that allows the driver in the driver's seat to sense the attitude of the ejector chute.The driver operates the control lever from the driver's seat while sensing the ejector chute's attitude using the sensor, and fixes the ejector chute. The discharge chute can be released and rotated.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 9. As in the conventional case, the exhaust chute 2 is a cylindrical body fixedly attached to the vehicle body 6 with its axis directed in the vertical direction. A rotary shaft 8 is rotatably inserted through the support member 7, and a chute body 9 is attached to the rotary shaft 8 via a bracket, a link member, etc. On the lower surface of the chute body 9, one end of an arm member 10 is attached to the lower end of the rotating shaft 8 so as to be vertically rotatable, and the other end of an arm member 10 is attached so as to be vertically rotatable. Although not shown, a spring is provided inside the arm member 10 to extend the arm member 10 and raise the chute main body 9 to an appropriate height when the arm member 10 is released.

Further, a locking bracket 11 for locking the arm member 10 is attached to the rear part of the vehicle body 6, and the locking bracket 11 has an inclined surface 1 at its tip.
2a is formed, and a locking hook 12 biased upward by a spring 12b is rotatably attached via a pin. And this locking hook 12
One end of an operating cable 13 for rotating the locking hook 12 is connected to a predetermined position. Further, at a predetermined position of the rotating shaft 8, a fan-shaped guide plate 14 having a fitting groove 14a formed along the circumferential direction on the outer periphery thereof.
is attached horizontally, and an operating cable 15 whose one end is fixed to the end surface of the guide plate 14 is fitted into the insertion groove 14a of the guide plate 14. Further, near the discharge chute 2, a mirror (sensing means) 16 consisting of a convex mirror is mounted on a bracket 17.
It is attached via.

On the other hand, an operating lever 18 as shown in FIGS. 6 and 7 is attached to the driver's seat 5. As shown in FIG. This operating lever 18 is attached to a rectangular cylindrical body 20 having a cylindrical member 19 fitted on the side so as to be rotatable on a fixed shaft.
A cylindrical member 21 is rotatably provided with its axis orthogonal to the cylindrical member 21, and a lever main body 22 is provided orthogonally to the cylindrical member 21. The lever main body 22 is placed on the operating floor at an appropriate height. The guide member is inserted into the guide hole 23 of the provided guide member, and the operating cables 13 and 15 are connected to the lower end thereof so as to be perpendicular to each other.

By rotating the operating lever 18 in the direction shown by the arrow in FIG. 8, the operating cables 13 and 15 are sequentially towed, first releasing the fixation of the discharge chute 2, and then rotating it. is becoming more and more common.

Therefore, in the truck mixer vehicle 4 having the above configuration, when feeding ready-mixed concrete into the hopper 1a of the concrete pump vehicle 1 at the pouring site, the discharge chute 2 is transferred to the hopper 1a along with or after the vehicle main body 6 as described below. The driver can remotely control the settings from the driver's seat 5. That is, first, the operating lever 18 is rotated along the guide hole 23 from the position A to the position B in FIG. Then, one of the operating cables 13 is pulled, the locking hook 12 is rotated downward against the biasing force of the spring 12b, and the fixation of the ejection chute 2 is released. From this state, when the operating lever 18 is further rotated along the guide hole 23 to position C, the other operating cable 15 is pulled, the guide plate 14 is rotated, and the rotating shaft 8 is rotated.
As a result, the discharge chute 2 is rotated from the stored state and positioned above the hopper 1a of the concrete pump vehicle 1. At this time, when the arm member 10 is released from the locking bracket 11, the above-mentioned arm member 10 is rotated. The chute body 9 is expanded and lifted by the biasing force of the internal spring. As described above, the elastic force of the spring inside the arm member 10 is adjusted so as to raise the chute body 9 to an appropriate height, so that the tip of the chute body 9 is placed at the appropriate height of the receiving opening of the hopper 1a. It is located in Sasa. Next, the driver
6 and operate the ejection chute 2 while checking its posture.

In addition, when storing the ejection chute 2 again,
First, the operator pulls down the chute body 9 by hand against the biasing force of the spring attached to the arm member. Next, the chute main body 9 is rotated in the direction of the locking hook 12, and the arm member 10 is attached to the locking hook 1.
2 against the inclined surface 12a. Then, the arm member 10 pushes down the locking hook 12, so that the arm member 10 can be locked by the locking hook 12. At that time, as shown in FIG.
2a, the locking hook 12 is automatically pushed down.

As explained above, the truck mixer vehicle of the present invention is provided with an operation cable in the discharge chute, an operation lever for towing and operating the operation cable in the driver's seat, and a sensing means near the discharge chute. This system allows the driver to remotely control the discharge chute while remaining in the driver's seat, allowing concrete pump truck drivers and auxiliary workers to perform pouring work without having to worry about operating the discharge chute. Therefore, the efficiency of pouring work is increased and labor savings are also possible. In addition, since the truck mixer vehicle of the present invention is configured to rotate the discharge chute using an operating cable, the truck mixer vehicle is lightweight compared to a structure in which the discharge chute is rotated using, for example, a hydraulic mechanism. Not only can the fuel efficiency of the vehicle be improved, but the structure is extremely simple and easy to implement, and it is also easy to modify conventional ones.

[Brief explanation of drawings]

Figures 1 to 8 show one embodiment of the present invention, in which Figure 1 is a rear view, Figure 2 is an enlarged view of the main parts, Figure 3 is a perspective view of the same, and Figure 4 is a second embodiment of the present invention. Figure -
5 is a sectional view taken along the - arrow in FIG. 4, FIG. 6 is a side view of the operation lever, and FIG.
FIG. 8 is an explanatory diagram of the operating state of the operating lever, and FIG. 9 is a side view of the locking hook. Moreover, FIG. 10 is a side view showing the state of supply of ready-mixed concrete to the concrete pump truck. 2...Exhaust chute, 5...Driver's seat, 13...
Operation cable, 15... Operation cable, 16...
Mirror (sensing means), 18...operation lever.

Claims (1)

[Scope of utility model registration request] In a truck mixer vehicle in which a mixer drum is equipped on a vehicle body having a driver's seat at the front, and a discharge chute is provided at the rear of the mixer drum, the discharge chute is provided with an operation cable for rotating the discharge chute, Further, an operating lever for towing and operating the operating cable is disposed in the driver's seat, and a sensing means is provided near the exhaust chute to allow the driver in the driver's seat to sense the attitude of the exhaust chute. A truck mixer vehicle characterized by: