JPS625412Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a horizontal mounting rod that is placed in the left and right direction at the front of the vehicle body, and a crane is attached to the longitudinal center of the rod. Regarding the improvement of a crane-equipped truck that lifts up the front part of the vehicle body and stably holds the vehicle body and crane, the installation of outriggers that can be used in both open and closed positions (self-loader) has been proposed. It is related to the device.

A conventional mounting device of this type is disclosed in Japanese Patent Application Laid-Open No. 111312/1982, and as shown in FIGS. 4 and 5, a bracket 1 fixed to a crane main body 101 is
02, a catch bar 103 displaceable in the vertical direction, a piston and cylinder unit 104,
105 to displace the catch bar 103 upward;
a spring 107 for displacing the bracket 3 downward; and two stay portions 11 rotatably mounted across the lower end of the bracket 102 and the lower end of the outer leg portion 108 and rotatably connected to each other by a bending joint 109.
0,111, a follower device 112 that displaces the bending joint 109 upward based on the upward displacement of the catch bar 103, and a spring 113 that rotates the support leg (outrigger) toward the main body 101.
As shown in Figure 2, the support legs (outriggers) are the main body 10.
It is equipped with a locking boss 114 and a locking loop 115, which are engagement mechanisms for maintaining this state when the legs are closed to the first side, and the two stay parts 110, 111 are engaged by the mutual cooperation of these mechanisms. are made straight and the support legs are opened outward (Fig. 4), and the stays 110, 111 are displaced upward by the bending joint 109 to close the legs (Fig. 5), and the stays are stably held in each state. It is becoming more and more common.

Therefore, in such a device, the rotating mechanism of the support legs (outriggers) or the locking mechanism for maintaining the open and closed states of the support legs (outriggers) are very complicated, so they not only have poor durability, but also have poor durability. The cost will be high. Additionally, it is difficult to check whether the support legs (outriggers) are locked, and there is a risk that the lock may be released due to a small operational error, especially if the front of the vehicle is raised to a considerable height with the legs closed. When applied to a self-loader, there is a risk of it falling over.

Therefore, the present invention aims to simplify the structure and eliminate the defects of the conventional products mentioned above.

The gist of this invention to achieve the above purpose is to attach outriggers to both the left and right ends of the mounting rod to which the crane is attached, and when the crane is used, the outriggers lift the front of the car body and hold the crane stably. In a truck with a crane, a substantially fan-shaped support plate is provided on the outrigger in an inverted manner protruding toward the vehicle body, and the support plate is stored at both left and right ends of the mounting rod with the outer ends open. An engagement recess is provided, the support plate is rotatably pivoted to the engagement recess at its upper end, and a mounting means is provided that spans the engagement recess and the support plate to removably attach the two; This invention relates to a mounting device for an outrigger on a crane-equipped truck, which is provided with repulsion spiral springs on both sides to press a support plate outward.

An embodiment of the present invention will be described below with reference to the drawings. In the drawings, A indicates the body of a truck, a indicates a loading platform, and a crane B is mounted in front of the loading platform a.
The crane B has the lower end of the vertical support rod b installed in the longitudinal center of the horizontal mounting rod 1 in an upright manner,
The horizontal mounting rod 1 has an overall length that is approximately the same as that of the vehicle, and has engagement recesses 1a at both ends, which have open outer ends and accommodate support plates 2a of outriggers 2, which will be described later.
1a is provided. The outrigger 2 is extendable and retractable by hydraulic pressure, and is composed of a hydraulic cylinder 2' and a piston 2'', and a grounding foot 2a'' is pivotally attached to the lower end of the piston 2''. ' is a substantially sector-shaped support plate 2a.
protrude toward the vehicle body A side in an inverted shape. Support plate 2
A is inserted into and accommodated in the engagement recess 1a of the mounting rod 1, and is pivotally connected to the engagement recess 1a at its upper end position by means of a support shaft 3.

A locking hole 4 for vertically holding the outrigger 2 is provided at the base end of the lower end of the support plate 2a, and a through hole 5 for holding the outrigger 2 at an angle is provided at the tip end of the support plate 2a. Both holes 4 and 5 are opened concentrically and are located directly below the support shaft 3 of the engagement recess 1a.
A locking pin insertion hole corresponding to the locking pin insertion hole is opened, and the locking hole 4 or the through hole 5 and the locking pin insertion hole will be described later.
The three locking pins 6 constitute a mounting means. Therefore, by inserting the locking pin 6 into the pin insertion hole and the locking hole 4 or the through hole 5, the outrigger 2 is prevented from rotating and maintained in a vertical or inclined state. In the figure, 7 is a repulsive spiral spring, one end of which is attached and fixed to the mounting rod 1, and the other end is brought into contact with the tip of the support plate 2a.
The elastic force allows the support plate 2a to easily protrude outward from the engagement recess 1a of the mounting rod 1.

The usage method will be explained below. First, the locking hole 4 and the engagement recess 1a in the support plate 2a of the outrigger 2
Remove the locking pin 6 inserted through the pin insertion hole of the support plate 2a, turn the support plate 2a, and then grasp the lower parts of both the left and right outriggers 2, 2 and pull them outward.
The lower part of the outrigger 2 is rotated outward about the support shaft 3.

In this way, the lower portions of both the left and right outriggers 2, 2 are expanded in a figure-eight shape, and both lower ends are expanded more than the vehicle.

Next, the locking pin 6 is inserted into the pin insertion hole of the engagement recess 1a and the through hole 5 of the support plate 2a, which corresponds to the hole, to maintain the inclined state of the outriggers 2,2. After that, operate the hydraulic mechanism of the outriggers 2, 2 to extend the outriggers 2, 2, and touch the ground foot 2.
A'' is grounded and the front part of the vehicle body A is lifted up (dashed line in Figure 2, Figure 3).Then, after the front part of the vehicle body A is supported by the left and right outriggers 2, 2, the crane B is used. After use, the crane B contracts the outrigger 2 using hydraulic pressure, removes the locking pin 6, pushes the lower part of the outrigger 2 inward, and attaches the support plate 2a to the engagement recesses 1a, 1 of the mounting rod 1.
Make the outrigger 2 vertical by storing it in the position a. Then, the locking pin 6 is inserted into the pin insertion hole and the locking hole 4 into which the locking pin 6 engages to maintain the vertical state of the outrigger 2 (solid lines in FIGS. 1 and 2).

In this state, by fully extending the piston 2'' and lifting the front side of the vehicle body A (functioning as a self-loader), loading of self-propelled machinery from the rear of the loading platform a is facilitated.

Further, by contracting the piston 2'' in this state (solid line in FIGS. 1 and 2), traveling becomes possible.

As mentioned above, the present invention includes a base plate, an engaging recess,
The three attachment means form a support structure that allows the outrigger to be used both in the open leg state and in the closed leg state (functioning as a self-loader), so the structure is simple and strong.

Therefore, it can withstand heavy loads and has excellent durability.

Furthermore, when not in use, the support plate is housed in the engagement recess and is not exposed to the outside, which improves the appearance, reduces damage to the support plate, and further improves durability.

Thus, the intended purpose can be achieved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is an enlarged front view with some of the main parts cut away, and FIGS. 4 and 5 are FIG. 7 is a front view of a conventional example, showing a state in which the support legs are opened outward and a state in which the support legs are closed. In the diagram, A is the vehicle body, B is the crane, 1 is the mounting rod,
1a is an engagement recess, 2a is a support plate, and 7 is a repulsion spiral spring.

Claims (1)

[Scope of utility model registration request] In a truck with a crane, outriggers are attached to both the left and right ends of the mounting rod to which the crane is attached, and when the crane is used, the front part of the vehicle body is lifted up by the outriggers and the crane is stably held. protruding toward the vehicle body in a shape, and on both left and right ends of the mounting rod,
An engaging recess is provided with an open outer end to accommodate the support plate, and the support plate is pivotally attached to the engagement recess at its upper end so as to be rotatable, and the two are attached and detached by crossing the engagement recess and the support plate. A mounting device for an outrigger on a truck with a crane, comprising mounting means for freely mounting the outrigger, and repulsion spiral springs for pressing the support plate outward on both sides of the mounting rod.