JP2521170Y2 - Crushing shovel scissors claw simple bucket - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple bucket that is temporarily attached to the scissors claws of a crushing shovel used for the demolition work of buildings, that is, the scissors claws that are attached to the work arm of a hydraulic excavator as an attachment. Therefore, the scissors can be easily attached to and detached from the scissors claw, and the work of scooping sand, soil, and small foreign matters can be easily performed using this bucket. Further, by crushing the soil with the above-mentioned scissors claws and scooping the crushed soil with the simple bucket of the present invention, it is possible to perform a simple digging work or digging work.

[0002]

2. Description of the Related Art The work of destroying a building or the like by the scissor claws of the above crushing shovel and removing the crushed product by using a hydraulic shovel or the like is necessary. Since it is not easy, it is rarely used for anything other than crushing work with nails, and therefore the working efficiency of a work machine equipped with crushing scissors nails is low.
In order to utilize this machine as much as possible, it is often the case that after the work of destroying and removing buildings is completed, the scrubbing claws of the crushing shovel are used for cleaning up. However, when the claws are closed, there is a gap between each claw, so sand, dirt, and small foreign objects cannot be grabbed by the scissors claws because they fall from the gap, so the final There is no other way than to carry out an organized work.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to make a crushing shovel usable as a simple shovel and improve its usability. It is an object of the present invention to allow a lightweight shovel to be attached to and detached from scissors claws easily, easily and firmly.

Before describing the structure of the present invention, the scissor claws of the conventional crushing shovel, which is the premise of the present invention, will be briefly described with reference to FIG. The scissors claw of this crushing shovel is, for example, that disclosed in Japanese Utility Model Laid-Open No. 55-43765. This is an attachment attached to the tip of the arm 4 of the power shovel by a pin 8, and the link 1 is attached by a bucket cylinder 9.
The pin 8 is pivotally operated in the front-rear direction of the machine body via the pins 1 and 10. The scissors claw is composed of a fixed claw 15 and a movable claw 16 pivotally mounted on the base 13 of the fixed claw by a pin 17, and the movable claw 16 is rotated about the pin 17 by a claw cylinder 18 housed in the base 13. Operated. When the claw cylinder 18 extends, the movable claw 16 rotates clockwise and the scissors claw is closed. Usually, this fixed claw has three claws, and the movable claw 16 has two claws. When the claws are closed, the two claws of the movable claw 16 are fitted between the claws of the fixed claw and the claws sandwich and crush the structure or the like.

[0005]

[Means taken for solving the problems] The means taken for solving the above problems are constituted by the following element (a). (A) The simple bucket detachably attached to the scissors claw has a substantially U-shaped cross section, and the bottom thereof has a curved surface substantially equal to the inner curved surface of the scissors claw.
A pocket into which the tip of the scissors claw is fitted is provided at the tip of the back surface, and two or more fixing bolts for sandwiching the scissors claw to fix the simple bucket are provided at a substantially center of the back surface.
Attach to the above scissors claw. In addition, when fixing the simple bucket to the claws by sandwiching each claw with a fixing bolt, the number of fixing bolts is twice the number of claws, but all claws (usually 2
(~ 3 pieces) together to fix the bucket to the claw, the number of fixing bolts may be two. In addition, when fitting the tips of the individual claws into their respective pockets, it is necessary to have as many pockets as the number of claws. It can also be closely related.

[0006]

[Operation] Usually, a simple bucket is easily attached to the above-mentioned scissors claws,
It can be easily attached and detached, and the arranging work of scooping and removing the crushed material obtained by crushing a structure such as a building with a crushing shovel using this simple bucket can be performed easily and efficiently. In addition, usually, when the simple bucket is attached to the scissors claw, one of the scissors claws is
Since the other has three, the sizes of the pockets of the simple buckets attached to the respective claws (the number of pockets when one claw fits in one pocket) are different from each other, but the size of the bucket is not always the same. No need to change. It is possible to fit the tip of the claw into the pocket at the tip of the back surface of the bucket, sandwich the claw with the fixing bolt on the back surface, and tighten the pressing plate with the nut to fix the approximate center of the simple bucket to the scissor claw. As a result, the tip of the simple bucket is firmly fixed to the tip of the claw, the center part is firmly fixed to the claw, and the back surface of the simple bucket is supported by the inner surface of the claw, so the simple bucket is firmly fixed to the claw. It The bucket itself does not receive a large amount of force during work, because the pawl basically receives a force. Therefore, even if the simple bucket is a light-weight, thin-walled product such as a steel plate, a stainless steel plate press-molded, or an aluminum cast product, there is no problem in terms of strength. Therefore, its handling is extremely simple, and its attachment / detachment is simple and easy.

[0007]

[Example] The flanges 2 are formed on both sides of a steel plate bottom plate 21 having a curved surface that is substantially the same as the curved inner surface of the scissors claw for crushing shovel.
2 and 22 are welded to form a simple bucket body having a substantially U-shaped cross section, and a pocket member 23 of a square box shape or the like is welded to the tip of the back surface thereof to form a pocket. The pocket member 23 has a width large enough to tightly fit the tips of all the claws together. Further, a plurality of pairs of fixing bolts 24 for sandwiching and fixing the scissors claws are provided at approximately the center of the back surface. Simple bucket B ₁ for fixed claw 15 is 3
Since it is fixed to the claws 15 of the book, the pocket P ₁ has a width such that the tips of the three claws 15 are tightly fitted together at once, and the fixing bolts 24 are 3 pairs, 6 in total. Is. Similarly, since the simple bucket B ₂ for the movable claw 16 is fixed to the two claws 16, its pocket P ₂ has two claws 1.
The tips of 6 have a width that allows them to be tightly fitted together, and the number of fixing bolts is 2 pairs, that is, 4 in total. Further when the pawl is closed, as a simple bucket B ₂ is fitted in a simple bucket B _1, the width of the simplified bucket B ₂ is slightly narrower than the width of the simple bucket B _1. The tips of the claws are fitted into the pockets P ₁ and P ₂ of the respective simple buckets, the claws are sandwiched between the bolts, and the pressing plates 25 and 26 are applied to the back surfaces of the claws 15 and 16, respectively. Insert the fixing bolts 24, 24 into the holes of and tighten the nuts 27 to attach the simple buckets B ₁ and B ₂ to the claws 15 and 1.
Fix at 6. When the movable pawl 16 is driven by the cylinder 18 and the pawls 16 and 15 are closed, the simple bucket B ₁ ,
Since B ₂ is closed, sand can be
You can easily and surely scoop out dirt and other small foreign matters. In addition, anti-slip protrusions 28, ... Are provided inside the scissors claws 15, 16. Further, when the simple bucket is attached to the scissors claw, the rubber packing 29 may be interposed between the scissors claw and the simple bucket so that the simple bucket does not rattle.

[0008]

[Effect] The above problems of the present invention are novel. Therefore, since this problem can be solved and a lightweight simple bucket can be easily and easily attached to and detached from the scissors claws of the crushing shovel,
The structure such as a building is destroyed by a crushing shovel, and the crushing shovel can be fully utilized for the rearranging work after removing the crushed material, whereby the above-mentioned rearranging work can be efficiently performed. In addition, since simple groove digging work and hole digging work can be performed only by the claws of the crushing shovel and the simple bucket of the present invention, the crushing shovel can be significantly improved in usability.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a front perspective view of the simple bucket of the present invention.

FIG. 3 is a rear perspective view of FIG.

FIG. 4 is a front view of a conventional crushing shovel.

[Explanation of symbols]

4 ... Arms 8, 17 ... Pins 9 ... Bucket cylinders 10, 11 ... Links 13 ... Base of fixed claw 15 ... Fixed claws 16 ... Movable claws 18 ... Claw cylinder 21 ... Stainless steel bottom plate 22 ... Flange 23 ... Pocket member 24 ... Fixing bolts 25, 26 ... Holding plate 27 ... Nut 28 ... Slip protrusion 29・ ・ ・ Rubber packings B ₁ , B ₂・ ・ ・ Simple buckets P ₁ , P ₂・ ・ ・ Pockets

Claims (3)

(57) [Scope of utility model registration request] 1. A simple bucket for a scissor claw of a crushing shovel, wherein a cross section of a simple bucket that is detachably attached to a scissor claw is substantially U-shaped, and the bottom thereof is a curved surface substantially equal to the inner curved surface of the scissor claw. 2. The attachment of the simple bucket to the scissors claws is provided with a pocket provided at the front end of the back surface of the simple bucket into which the tips of the scissors claws are fitted, and the scissors projecting substantially at the center of the back surface. The simple bucket for scissors claws of a crushing shovel according to claim 1, wherein the simple bucket is attached with two or more fixing bolts for fixing the simple bucket by sandwiching the claws. 3. A crushing shovel in which the simple bucket according to claim 1 is attached to scissors claws.