JPS5811826Y2 - Simple crane device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a simple crane device installed in the working machine section of an excavator.

In a conventional crane device of this type, as shown in Fig. 1, a wire guiding pulley b of a crane device a is mounted on the side of a poom C and an arm d, and a hook member e is also mounted on the outside of the working machine section. It was configured to be equipped with.

For this reason, when a conventional shovel excavator equipped with a simple crane is used to dig a trench, for example, the pulley b, wire f, etc. of the simple crane device a may come into contact with obstacles and be damaged.

This poses a serious problem for the safety of crane work.

The present invention has been developed in consideration of the above-mentioned issues.By installing the component parts of the simple crane device inside the excavating machine part, the component parts of the simple crane device can be damaged by hitting obstacles during excavation work etc. The purpose of the present invention is to provide a simple crane device that can prevent such problems from occurring.

The configuration will be explained below based on the embodiment shown in FIG. 2 and below.

In the figure, 1 is an upper swing type excavator, 2 is its excavation work part,
3 is a boom, 4 is an arm, and 5 is a packet.

6 is an arm pivot that connects the poom 3 and the arm 4, 1
is a packet pivot that connects the arm 4.

The tip of the arm 4 has a trifurcated shape spaced apart in the left-right direction, and the packet pivot 1 is located at the tip, and brackets for the packet 5 are pivotally supported on both sides of the packet pivot γ.

Pulleys 8, 8 are provided inside the forked portion of the arm 4 and supported on the packet pivot 1.

The arm pivot 6 is also supported by pulleys 9, 9 corresponding to the pulleys 8, 8 of the packet pivot 1.

10, 10 is a winch device installed on the back of the boom 3,
The wire 11° 11 of this winch device 10 is guided from a hole 3a provided on the back side of the poom 3 into the poom 3 controller and arm 4, wrapped around the pulleys 9, 9 and 8, 8, and then clicked. Bracket 13 with hook 12.12
It is wound around a pulley 14 supported by the.

The tip thereof is fixed to the arm 4.

A bar 15 for hooking a hook member 12, 12 is provided inside the yoke portion of the arm 4.

In the above configuration, the shear wire 11 is attached to the winch device 10.
．． When the pull-in button 11 is pulled out, the hook member 12.12 moves up and down, thereby performing crane work.

When the hook member 12.12 is not in use, it is hooked onto the hoisting bar 15.

The hook members 12, 12 are then stored within the fork at the tip of the arm 4.

In the above embodiment, two winches using two wires 11.11 and two hook members 12.12 are used, and the winch devices io and io are provided on the back of the boom 3. 11 may be used, and the winch device 10 is not limited to the rear side of the boom 3.

FIG. 8 shows an example in which there is only one winch and a winch device 10' is provided on the side of the boom 3.

In this case, the wire 11 is led into the arm 4 from the side of the arm 4.

In addition, if there are two winch devices 10 and 10 above, driving and pulling out sheet piles with a vibro hammer,
Wire type ram shell packet can be excavated.

The present invention is as described above, and the tip of the arm of an excavator consisting of the boom 3, arm 4, and packet 5 is formed into a bifurcated shape spaced apart in the left and right direction, and a pulley 8 is attached to the pivot provided inside the bifurcated portion. . 11, 11 is provided on the side wall of the boom 3 through the inside of at least the arm 4 of the boom 3 and the arm 4.
The simple crane device is constructed by connecting the arm 4 to the fork, and providing a bar 15 on the inside of the fork of the arm 4 for hooking the hook member 12, 12 and storing it in the fork. The components of the simple crane device are installed inside the excavator section, and the hook member is stored in the arm 4, so that the component parts of the simple crane device can be damaged by hitting an obstacle when performing the work machine's original work such as excavation work. This can contribute to the safety of crane work.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional example, Fig. 2 and the following shows an embodiment of the present invention, Fig. 2 is a side view, and Fig. 3 is a partially cutaway side view showing the hook member in a retracted state. , Figure 4 is the second
Figure 5 is a view taken along line V in Figure 3, Figure 6 is a sectional view taken along line ■-■ in Figure 2, and Figure 1 is a view viewed from ■- in Figure 2.
(2) A cross-sectional view taken along the line, and FIG. 8 is a side view showing another embodiment. 3 is a boom, 4 is an arm, 5 is a packet, 8° 14 is a pulley, 10 is a winch device, 11 is a wire, 12 is a hook member, 13 is a bracket, and 15 is a bar.

Claims (1)

[Scope of utility model registration request] The tip ends of the arms of the excavator, such as the boom 3, arm 4, and packet 5, are formed into a bifurcated shape spaced apart in the left-right direction, and pulleys 8, 8 are supported on pivots provided inside the trifurcated portion. A wire 11.11 connected to the arm 4 side at one end and wound around the pulley 14 supported by the bracket 13 of the hook member 12.12 is wound around the arm 8, and this wire 11.11 is connected to the arm 3 and the arm 4. At least the arm 4 is connected to a winch device 10.10 provided on the side wall of the boom 3 through the inside of the arm 4.
A simple crane device characterized in that a bar 15 for hooking the hook member 12.12 and storing the hook member 12.12 inside the fork is provided inside the fork.