JPS6146041Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a self-propelled working vehicle equipped with an outrigger that is movable between a working position projecting outward from the vehicle body and a storage position stored on the vehicle body.

Generally, when performing self-propelled work equipped with this type of outrigger, as shown in Figure 2, when performing work such as crane work, the outriggers 10, 10 are extended outward from the vehicle body, and the outriggers 10, 10 are extended in the extended state. The outriggers 10, 10 are extended downward and grounded (indicated by the dashed lines in Figure 2) to stabilize the vehicle body, and when running, the outriggers 10, 10 are shortened and retracted to the sides of the vehicle body (indicated by the solid lines in Figure 2). Condition shown) The vehicle is designed to ensure safe driving.

However, if the outriggers 10, 10 are not stowed and the vehicle is driven on the road due to the driver's carelessness or sidetracking, it is dangerous and there is a high risk that the outriggers themselves will collide with obstacles on the road and be damaged.

In view of the above points, the present invention aims to prevent dangerous driving and damage to outriggers due to carelessness in self-propelled work vehicles equipped with outriggers.

This invention is a self-propelled work vehicle equipped with outriggers that can be moved freely between a working position that extends outward from the vehicle body and a storage position that is stored on the side of the vehicle body. The main clutch is provided with a locking body that can be freely engaged and disengaged, and the position of this locking body is controlled by a locking body moving means that operates in conjunction with the movement of the outriggers, so that when the outriggers are in the working position, The main clutch is locked and held in the stop operation position and can be switched to the start operation position when it is in the storage position.

Hereinafter, an embodiment of this invention will be described based on the drawings.

1 to 5, reference numeral 1 denotes a self-propelled crane vehicle, that is, a self-propelled working vehicle in this embodiment. A pair of left and right traveling devices 4, 4 driven by the device 3 are arranged, and a main clutch capable of intermittent operation of power transmission from the power device 3 to both traveling devices 4, 4 is arranged near the rear seat 6. Side clutches that can operate the left and right traveling devices 4, 4 separately are provided, and a hydraulic drive device 8 that passively receives power from the power device 3 is provided, and is operated by this hydraulic drive device 8. A crane device 9 is installed, and is also operated by this hydraulic drive device 8, at a working position (position shown by chain lines in FIG. 2) in which it extends outward on both sides of the vehicle body, and is stored on the side of the vehicle body 1. A pair of left and right outriggers 10, 10, which are configured to be horizontally movable, are disposed at the storage position (position shown by the solid line in Figure 2) where the camera is stored. There is nothing that will change. In FIG. 1, numeral 5 is a transmission case in which the aforementioned main clutch, side clutch, and transmission are housed, and numeral 7 is an operating lever for the side clutch.

That is, in the outriggers 10, 10, inner cylinders 12, 12 are fitted into outer cylinders 11, 11 in an upright position so as to be expandable and retractable in the downward direction, and the hydraulic operating lever 13,
13, the outer cylinder 11,
A cylinder 1 is provided so that it can be horizontally expanded and contracted outwardly on both sides of the vehicle body 1 by a hydraulic drive device 8.
4, 14, and hydraulically operated levers 15,
15, it is configured to be movable between the working position and the storage position separately on the left and right sides.

Further, in this embodiment, the main clutch is rotatably mounted on a shaft along the left and right direction of the vehicle body 1, and by its rotation, the main clutch is moved from the power plant 3 to the traveling devices 4 and 4.
A clutch lever 17 is provided in a protruding manner on a clutch shaft 16 for intermittent power transmission to the clutch shaft 16 so as to be able to rotate integrally with the clutch lever 17, and the clutch lever 17 is extended upwardly through an operating groove 18 of the transmission case 5. The driver can rotate the clutch lever 17 between the stop operation position (the position shown by the solid line in Figures 3 to 5) and the start operation position (the position shown by the chain line in Figures 4 to 5). The structure is such that power transmission can be switched on and off by dynamic operation.

Next, the locking bodies 19, 19 which are the main part of the present invention
and the locking and moving means A, A will be explained.

Referring to FIGS. 3 to 5, round rod-shaped locking bodies 19, 19 are inserted into support tubes 20, 20 protruding from the back surface of the transmission case 5 so as to be slidable in the left-right direction of the vehicle body 1. The sliding position (shown by the solid line in Figure 4) allows the clutch lever 17 to be rotated from the sliding position (position in Figure 3) where the clutch lever 17 is locked and held in the stop operation position by holding the tip thereof to the start operation position (shown by the solid line in Figure 4). The interlocking arms 22, 22 are pivotably connected to a pin 21 vertically provided on the back surface of the mission case 5 at the center thereof, and vertical pins 22a, 22a are attached at one end of the interlocking arms 22, 22. are provided protrudingly, and the vertical pins 22a, 22a are connected to the locking bodies 19, 19.
As the interlocking arms 22, 22 rotate, the locking bodies 19, 1 are engaged with the long holes 19a, 19a drilled in the rear end.
Operating rods 24, 24 of an appropriate length are inserted into support tubes 23, 23 fixed to the rear wall of the hydraulic drive device 8 so that the vehicle body 1 can slide in the left-right direction. Locking collars 24a, 24a are formed at appropriate locations on the inside of the vehicle body 1 to limit the range of movement of the vehicle body 1 in the outward direction, and the support cylinders 23,
23 and the interlocking arms 22, 22, a tension spring 25,
25, the other end of the interlocking arms 22, 22 and the inner end of the vehicle body 1 of the operating rods 24, 24 are brought into constant contact, and the locking bodies 19, 19 move the clutch lever 17 to the stop operation position. The operating rods 24, 24 slide toward the outside of the vehicle body 1 and are urged to be locked by the locking collars 24a, 24a (the state shown in FIG. 3). , operating rod 2
When the outer ends of the vehicle body 1 of 4 and 24 are pushed inward (arrow B) of the vehicle body 1 against the tension springs 25 and 25, the interlocking arm 2
2 and 22 are also rotated in the A direction to release the locking bodies 19 and 19 from the locked state of the clutch lever 17 (FIG. 4), and the outer cylinders 11 and 11 of the outriggers 10 and 10 are Actuating pieces 26, 26
When the cylinders 14, 14 are retracted to store the outriggers 10, 10 on the side of the vehicle body 1, they come into contact with the outer ends of the operating rods 24, 24, and the vehicle body 1
When the cylinders 14, 14 are extended in order to be pushed inward (Fig. 4), the operating rod 2
4, 24 (FIG. 3) so as to be spaced apart from the outer end.

Note that the supporting positions of the left and right locking bodies 19, 19 are slightly shifted in the vertical direction so that they do not come into contact with each other (see FIG. 5).

In the crane vehicle 1 with outriggers configured as described above, when at least one of the left and right outriggers 10, 10 is positioned at the working position, at least one of the locking bodies 19, 10, as shown in FIG. 19 locks and holds the clutch lever 17 in the stop operation position, does not allow rotation operation to the start operation position, and when both the left and right outriggers 10, 10 are positioned in the storage position (FIG. 4) Only the clutch lever 17 is allowed to be rotated to the start operation position.

The locking body moving means A of the present invention is not limited to the above-mentioned embodiments, but can be implemented by detecting the movement of the outriggers and controlling the movement of the locking body using various obvious interlocking means. For example, with reference to FIGS. 6 and 7, the locking body 19
The main clutch lever 1 is activated by the electromagnetic solenoid 27.
A control device 28 including a power source and a switch mechanism for supplying electric power to the electromagnetic solenoid 27 is controlled by the operation of a limit switch 29 that detects movement of the outrigger, and the outrigger is locked. The structure may be such that the position of the body 19 can be changed automatically, and appropriate electrical interlocking means or mechanical interlocking means can be applied as desired.

As described above, the present invention provides a self-propelled work vehicle with an outrigger that is equipped with an outrigger that is movable between a working position that extends outward from the vehicle body and a storage position that is stored on the side of the vehicle body. The main clutch for starting and stopping the outrigger is provided with a locking body that can be freely engaged and disengaged, and this locking body locks and holds the main clutch in the stop operation position when the outrigger is in the working position, and also in the storage position. We have provided a locking body moving means that operates in conjunction with the movement of the outriggers to allow switching to the starting operation position when the vehicle is in the starting position, so the vehicle can be driven on the road with the outriggers extended outward from the vehicle body. This has the advantage that it is possible to inevitably eliminate such dangers, and it is also possible to prevent damage to the outriggers caused by such driving.

Furthermore, since the outriggers are stored within the width of the aircraft in the lateral direction in the stowed position, and the locking bodies are located within the width of the aircraft in the longitudinal direction, it is safe to drive on the road because no obstacles protrude from the aircraft, and the outriggers and This has the advantage that there is no damage to the locking body.

Furthermore, since the locking bodies are provided on both the left and right sides of the fuselage, the locking function can be reliably performed even if the outriggers or one of the locking bodies fails.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a crane truck with outriggers, that is, a self-propelled work vehicle with outriggers, in which the present invention is implemented, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, and Fig. 3
Figures 4 and 4 are partially sectional plan views of the main parts; Figure 3 shows the outrigger in its working state, and Figure 4 shows it in its stored state. Figure 5 is the − of Figure 4.
FIG. FIGS. 6 and 7 are plan views showing other embodiments of the locking body moving means, with FIG. 6 showing the outrigger in its working state and FIG. 7 similarly showing its stored state. DESCRIPTION OF SYMBOLS 1... Crane vehicle (self-propelled work vehicle), 10... Outrigger, 17... Clutch lever (main clutch), 19... Locking body, A... Locking body moving means.

Claims (1)

[Scope of utility model registration request] In a self-propelled work vehicle with an outrigger equipped with an outrigger 10 that is movable between a working position that extends outward from the vehicle body and a storage position that is stored on the side of the vehicle body, the outrigger is moved laterally to the body in the storage position. Locking bodies 19 are provided on both left and right sides of the fuselage body, and these locking bodies 19 can be stored within the width of the car body and can be freely engaged and disengaged from the main clutch that starts and stops the vehicle. A locking body moving means A for operating in conjunction with the movement of the outrigger so as to lock and hold the outrigger in the stop operation position and allow switching to the start operation position when it is located in the storage position.
A self-propelled work vehicle with outriggers installed within the width of the machine in the longitudinal direction.