JPS6130924Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an auxiliary leg that is installed separately from a float that is provided on the outrigger itself, in particular, in an outrigger that is installed on a vehicle such as a truck crane.

FIG. 1 shows a part of what is usually called an H-type outrigger, and the outrigger consists of a box 1 fixed to the chassis of a vehicle,
A beam 2 is extendable and retractable, a jack cylinder 3 is fixed to the tip of the beam 2, and a float 4 is attached to the bottom end of the jack cylinder 3.
It is well known that when performing crane work on a truck crane, the entire device is stably supported on the ground G by extending the beam 2 and the jack cylinder 3. That's right. This is not a particular problem if the supporting force of the ground G in the outrigger is sufficient, but if the supporting force is insufficient, unexpected settling may occur.

Therefore, the conventional countermeasure was to insert a board between the stretched beam 2 and the ground, and to obtain a supporting reaction force through the board and the float 4. There is. However, since the board requires a considerably large size, the operator is forced to do considerable hard labor when handling it, and some kind of solution is desired.

With the above background, this invention was made with the purpose of providing auxiliary legs for outriggers that are simple in structure and handling, and the auxiliary legs are arranged in a V-shape and can be mutually opened and closed at their lower ends. two or more support legs pivotally attached, a float attached to the lower end of the support legs, a hooking claw for hooking to the beam of an outrigger attached to the upper end of the support legs, pivotably attached to one of the support legs; It is characterized in that it consists of a wheel tie material having a hooking part for the other support leg at its tip.

That is, to explain the illustrated example in detail, the auxiliary leg 5 includes a support leg 7 made of a square steel tube, and support legs 8 and 9.
are arranged in a V-shape, both support legs 7, 8, and 9 are pivotally connected at the lower ends with pins 10 so as to be freely openable and closable, and using the same pins 10, a float 11 is attached to the lower ends. A hooking claw 12 having an inwardly bent portion is attached to the upper end of 7, and the other supporting leg 8,
A similar hooking claw 13 is attached to 9, and a connecting member 14 is pivoted to the inner bracket of one support leg 7 so as to be swingable in the direction of arrow A. A hooking part 15 on the outside of the support legs 8 and 9 is integrally provided in a T-shape, and a hole for a stop pin 16 is bored in the other support leg 8 and 9, and the hole connects the auxiliary leg 5 to the beam 2 The pin 16 is located at a portion that supports the lower side of the connecting member 14 when it is attached to the connecting member 14 (FIG. 2). When using it, with the beam 2 of the outrigger extended, the lower flange of the beam 2 is used to suspend and connect the auxiliary leg 5 to the beam 2 with both hooking claws 12 and 13 as shown in the second figure. While the member 14 is swung upward and the right side of the support legs 8 and 9 is supported by its engaging portion 15, the pin 16 is inserted to hold the connecting member 14. Then, a small board 6 is inserted between the float 11 and the ground G as necessary. Here, when the supporting force of the ground G is sufficient, sufficient support is achieved only through the float 4, but when it is insufficient, the float 4 may sink a little, but after a certain level of settling, it becomes auxiliary. As a result of the support provided by the legs 5, further settling is prevented, as in the case of the previous case where all the blocks are made of wood. On the other hand, in order to remove the auxiliary leg from the state shown in FIG. 2, by swinging the connecting member 14 downward after pulling out the pin 16, the support legs 8 and 9 can be opened slightly relative to the support leg 7. , it becomes possible to remove both engaging claws 12 and 13 from the beam 2.

Since this invention is as described above, it can be made lightweight, and the board can be small-sized, making it easy to handle.

[Brief explanation of the drawing]

Fig. 1 is a front view of a part of an H-type outrigger equipped with auxiliary legs according to this invention, Fig. 2 is a side view showing an auxiliary leg according to an embodiment of this invention, and Fig. 3 is a side view along the line shown in Fig. 1. is a front view of the same. 7, 8, 9: Support leg, 11: Float, 12,
13: Engagement claw, 14: Connecting material, 15: Engagement portion.

Claims (1)

[Scope of utility model registration request] Two or more support legs arranged in a V-shape and pivotally connected to each other at their lower ends so as to be openable and closable, a float attached to the lower ends of the support legs, and engaged with a beam of an outrigger attached to the upper ends of the support legs. 1. An auxiliary leg for a vehicle outrigger, comprising a hooking pawl for a vehicle, and a connecting member pivotally attached to one support leg and having a hook portion at its tip for engaging the other support leg.