JPH0223650Y2 - - Google Patents

Description

[Detailed explanation of the idea] This idea concerns buckets.

Conventionally, concrete such as roads or floors was crushed,
When loading onto a truck, first, an opening/closing crusher claw is set at the tip of the undulating boom of a hydraulic excavator construction machine, and the crusher claw crushes the concrete.

Next, after removing the crusher claw from the tip of the boom, a bucket is set on the tip of the boom, and the crushed pieces are scooped up with the bucket.

According to this method, since the crusher claw and the bucket are attached to and removed from the arm, there is a problem that it is time-consuming and significantly reduces the work efficiency of the construction machine.

The purpose of this invention is to solve the above-mentioned problem by setting the bucket on the arm with the crusher claw still attached.

This idea consists of a bucket main body consisting of an arc-shaped bottom wall with a claw on the downward tip edge and side walls closing both sides of the bottom wall, and a through hole provided downward from the end of the bottom wall of the bucket main body. While passing the crusher pawl attached to the tip of the undulating boom of the construction machine through the hole, push one tip of the crusher pawl into the flat cylindrical part provided on the inner surface of the tip edge of the bottom wall to engage it. Further, a tongue piece which is made to protrude by a spring is provided on the inner surface of the distal end of the bottom wall, and the remaining one of the crusher claws is pressed against and engaged with the tongue piece while rotating in the opening direction, and the above-mentioned crusher To provide a bucket that can be set on a nail.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

In the figure, 1 is the bucket main body.

The bucket main body 1 mentioned above has a claw 2 on the downward tip edge.
It is comprised of an arc-shaped bottom wall 3 and side plates 4, 4 that close both sides of the bottom wall 3.

Further, the bottom wall 3 is provided with a through hole 5 for passing a crusher pawl B attached to the tip of the hoisting boom A of the construction machine downward from the distal end of the bottom wall 3.

Furthermore, a flat cylindrical portion 6 into which the tip of one claw b of the crusher claw B is fitted is provided on the inner surface of the tip edge of the bottom wall 3.

Note that by tapering the inner diameter of the cylindrical portion 6 so that it gradually decreases toward the claw 2 side as shown in the figure, the claw b can be easily fitted into the tubular portion 6.

In addition, a crusher claw B is provided on the inner surface of the end of the bottom wall 3.
A protruding tongue piece 8 is provided to engage with the remaining claw b'.

In the illustrated case, the tongue piece 8 fixes the upper edge of the flat box 9 to the bottom wall 3, and also guides the tongue piece 8 by inserting it into a through hole 10 provided in the bottom wall of the box 9. Further, the spring 7 incorporated in the box 9 provides protrusion so that both ends thereof come into contact with the top wall of the box 9 and a seat plate 11 provided at the inner end of the tongue piece 8.

Furthermore, a locking portion 12 for the tongue piece 8 is provided on the claw b'.

In the illustrated case, the locking portion 12 has a protrusion on the pawl b', but it may also be a concave portion or the like.

Furthermore, a crusher claw B is attached to the distal surface of the bottom wall 3.
Two parallel plate-like bodies 13, 13 are provided facing both sides of the plate-like bodies 13, 13.
A through hole 14 is provided that coincides with the end surface of the cylinder C provided in the cylinder body C, and a pin 15 is inserted through the through hole 14 on one side of the cylinder body C and into the through hole 14 on the other side that remains.

In the figure, 16 is a pin for attaching crusher pawl A to the tip of boom A, and 17 is a cylinder provided on boom A. The action of this cylinder 17 rotates pawl b of crusher pawl B via link 18. There is. Reference numeral 19 denotes a cylinder that opens and closes the claw b' of the crusher claw B.

The bucket according to this invention has the above-mentioned structure, and how to use it will be explained next. After raising the concrete floor with the claw b of the crusher claw B,
The concrete floor is crushed by the pawls b and b' while rotating the pawl b' in the closing direction.

When scooping up the crushed debris and digging up the earth and sand to load it onto a truck, first
While passing the crusher claw B through the through hole 5,
Push the tip of the claw b into the cylindrical part 6.

Next, after aligning the cylinder C and the through holes 14, 14, the pin 15 is inserted through one of the through holes 14 through the cylinder C and into the remaining through hole 14.

After that, while rotating the claw b' in the direction of opening, the tongue piece 8 is brought into contact with the claw b and the tongue piece 8 is pushed back, and the tip of the tongue piece 8 is engaged with the locking part 12 and the tongue piece 8 is opened. As shown in Fig. 3, the bucket main body 1 is attached to the crusher claw B so as not to shake, and the crushed pieces or earth and sand are scooped out by the bucket main body 1.

As described above, according to the bucket belt according to this invention, the bucket main body is attached to the crusher claw without removing the crusher claw from the tip of the boom. Also, the time-consuming work of removing the bucket and attaching the crusher claw to the boom is eliminated.

Therefore, the operating rate of the construction machinery is not reduced.

In addition, the installation method is to pass the crusher claw through the hole in the bottom wall, fit the tip of the claw into the cylindrical part, and then insert the pin while aligning the hole in the plate with the cylindrical body of the crusher claw. Because it is installed by inserting it,
It can be installed easily and quickly without lifting the bucket main body, and since the tongue is pushed back by the claw and the tip of the tongue is engaged with the locking part of the claw, there is no wobbling of the bucket main body against the crusher claw. can be eliminated.

[Brief explanation of the drawing]

Fig. 1 is a side view of the crusher pawl, Fig. 2 is a perspective view of the bucket belt according to this invention, Fig. 3 is a longitudinal side view showing the installed state, and Fig. 4 shows the engagement between the locking part and the tongue piece. FIG. 1...Bucket body, 2...Claw, 3...Bottom wall,
4...Side plate, 5...Through hole, 6...Cylindrical part, 7...
Spring, 8... Tongue piece, 9... Box, 10... Through hole, 11... Seat plate, 12... Locking portion, 13... Plate body, 14... Through hole, 15... Pin.

Claims (1)

[Scope of utility model registration request] The bucket main body is composed of an arc-shaped bottom wall having a claw on the downward tip edge and side walls closing both sides of this bottom wall, and the bucket main body is attached to a hoisting boom of a construction machine downward from the end of the bottom wall. A through-hole is provided through which a certain crusher claw passes, and a cylindrical part into which the tip of one of the crusher claws fits is provided on the inner surface of the tip edge of the bottom wall, and a cylindrical part is provided on the distal surface of the bottom wall facing both sides of the crusher claw. In addition to providing two plate-like bodies,
This plate-shaped body is provided with a through-hole for the insertion of a pin that matches the end face of the cylinder provided on the crusher claw, and is engaged with the remaining claw of the crusher claw on the inner surface of the end portion of the bottom wall while pushing it back. A bucket bag with a protruding tongue.