JPS5931865Y2 - concrete breaking tool - Google Patents

Description

[Detailed explanation of the invention] This invention is a civil engineering construction machine for removing unnecessary concrete parts such as columns, floors, walls and roads.
This relates to a concrete breaking tool that is installed as an accessory.

Traditionally, this type of work involved destroying concrete by colliding a steel ball with the end of a support such as a crane, but in this type of demolition work, the steel balls collide with each other, causing fragments to scatter. However, it was dangerous and caused pollution due to high noise and significant dust when the concrete was broken.

The purpose of the present invention is to solve these problems and provide a concrete breaking tool that can perform various types of crushing work such as crushing, crushing, etc., and can destroy concrete at two locations, the front and back of the main body.

Another object of the present invention is to provide a destructive tool that can minimize damage to the connection part with the arm during work.
There it is.

Fig. 1 is a side view of the destructive device according to the present invention 1, and shows the main body 1.
The upper part has a pin hole for connecting an arm (not shown) of an excavator or the like, and a pair of blades 3 and 4 facing in the opposite direction are fixed integrally to the lower part.

These blades 3 and 4 are used to cut the reinforcing bars in the concrete.
This lower part is formed into an uneven shape 5.

An arm 8 is attached to a pin 7 between the blades 3 and 4 at the bottom of the main body 1.
It is rotatably attached.

The main body 1 houses a hydraulic cylinder 10 inside, and one end of the cylinder is hingedly fixed by a pin 12. In order to rotate the arm 8 about the pin 7, the cylinder 10 is connected to the upper end of the arm. They are connected via a side I-pin 11.

A holding member 2 is fixed to the lower part of the arm 8, in which a pair of opposing tip portions 9 of the blades 3 and 41 of the main body 1 are integrally formed.
Thus, the expansion and contraction movement of the cylinder 10 causes the arm 8 to
The image leading end 9 of the holding member 2 which rotates in pairs with the blade 3 or 4 of the main body 1 is designed to crush the concrete.

The pin hole in the main body 1 is used to connect the arm through the pin 13, and there is one hole between the pin 13 and the boss hole 15 so that a rubber ring 14 for cushioning can be fitted therein.

Next, to explain the operation of this invention, first, connect the main body 1 to the tip of the arm of the excavator with a pin 13, operate the arm, and use the blade 3 of the main body 1 to crush the concrete 4 in front, and use the blade 4 to crush the floor or road. Destroy.

Also, the cylinder 10 is operated to engage the image leading end 9 of the holding member 2 with the corresponding blades 3 and 4 of the main body 1.
This will crush the concrete or cut the internal reinforcing steel.

In the figure, the two-dot chain line indicates a state in which one tip 9 of the holding member 2 is rotated by one angle on the corresponding blade 3 side of the main body 1 and engaged.

As mentioned above, since the concrete breaking tool of the present invention is provided with a pair of blades facing in opposite directions from the main body 11,
By swinging the arm, the blade 3.4 or the structures above and below can be smashed and dismantled efficiently.

Further, since the holding member 2 has a pair of engaging tip portions 9 corresponding to the blades 3 and 4f of the main body 1, work can be performed at two locations, the front and rear of the destructive tool.

Therefore, since a wide range of chewing operations can be performed with a small arm rotation angle, efficiency is significantly improved.

Since the blades 3 and 4 have an uneven shape, they have strong destructive power and can cut one reinforcing bar in concrete at the same time.
When a rubber ring 14 is installed between the arm 5 and the pin 13, the elasticity of the ring 14 buffers the unreasonable twisting and bending force applied to the arm 1 during work, thereby preventing damage to the arm and pin. A disappointing effect can be obtained.

[Brief explanation of drawings]

Figure 1 is a side view of the destructive device according to the present invention, and Figure 2 is a side view of the destructive tool according to the present invention.
It is a sectional view taken along the line AA in the figure. 1... Main body, 2... Holding member, 3, 4
...Blade, 5...Irregularity, 8...
・Arm, 9...Tip, 14...Rubber ring.

Claims (1)

[Claims for Utility Model Registration] l A pair of uneven blades 3 facing in opposite directions at the bottom of a main body 1 which has a pin hole for connecting the arm of an excavator in the upper part and pivots one end of a hydraulic cylinder 10 inside. .
The lower part of the arm 8 is rotatably supported by the main body 1.
A concrete breaking tool characterized in that a clamping member 2 having a pair of opposing tip portions 9, 9 integrally fixed to the blades 3, 41. 2. The concrete breaking tool according to claim 1, which is a registered utility model, characterized in that a comb ring 14 is interposed in a boss 15 of a pin hole formed in the upper part of the main body.