JP4822927B2 - Demolition presser arm - Google Patents

Description

  The present invention relates to a presser arm of a dismantling machine used for dismantling household appliances, automobiles, industrial waste, and the like, and more particularly to a structure of a presser arm suitable for pressing a thin dismantling object.

  As disclosed in Patent Documents 1 and 2, a conventional dismantling machine has a presser arm attached to a front part of a traveling body frame so that it can be swung up and down by a hydraulic cylinder. A work arm having a multi-joint structure is attached, and an openable work tool is attached to the tip of the work arm. When dismantling a dismantled object such as an automobile, the dismantling object is pressed by a presser arm, and a member to be removed from the dismantling object is grasped and removed from the dismantling object by an openable work tool.

  If such dismantling is not performed, the dismantling object is handled as mere waste. However, if the dismantling object is separated for each material, each separated member can be used for recycling, resulting in an economic effect. Bring.

  As shown in FIG. 7, a plurality of claws 2 </ b> A to 2 </ b> D are provided on the lower surface of the front portion of the presser arm 1 described in the above-mentioned patent document so as to be arranged in the front-rear direction and prevent slipping of the dismantling object. .

JP 2001-25672 A JP 2001-150222 A

  Since this type of dismantling machine dismantles a dismantling object having a certain thickness such as an automobile or home appliance, when the dismantling object has a thickness of about 1 m, for example, the presser arm 1 is lifted to some extent. The plurality of claws 2 </ b> A to 2 </ b> D are designed so as to come into contact with the dismantling object when the posture is set. For this reason, as shown in FIG. 7, when the plate-shaped thin dismantling object 3 is pressed and a member of a different material is gripped and removed from the dismantling object by an openable work tool, only the front end claw 2A is dismantling object. There is a problem that the object 3 is pressed, and the dismantling object 3 cannot be sufficiently fixed to the ground 4 and may slide. That is, the presser arm 1 is composed of a pair of left and right arms, but only one arm may be in contact with the dismantling object 3 due to the unevenness of the ground 4 on which the dismantling object 3 is placed. The object 3 is pressed only at one place, and when the member to be removed is gripped by the open / close type work tool and pulled back and forth or upward, the dismantling object 3 slides and the member cannot be removed efficiently.

  In view of the above problems, the present invention provides a presser arm for a demolition machine having a structure that can be pressed without slipping even when the object to be demolished is thin and can improve the efficiency of the demolition work. Objective.

The presser arm of the dismantling machine of the present invention has a presser arm attached to the front part of the traveling body frame so that it can be swung up and down by a hydraulic cylinder, and a work arm is attached to a revolving body installed on the traveling body frame. In a demolition machine with an openable work tool attached to the tip of the arm,
The presser arm has a plurality of claws arranged in the front-rear direction on the lower surface of the front portion so that the tips are located on substantially the same straight line,
When the presser arm is positioned at a position where a thin dismantling object placed on the ground can be pressed by a front end claw of the plurality of claws, the thin disassembly object is moved together with the front end claw of the plurality of claws. A presser member is welded to the tip of the presser arm so that the dismantling object is pressed .

  According to the present invention, since the member that contacts the thin disassembly object together with the front end claw and presses the disassembly object at the same time as the front end claw is provided in front of the front end claw of the presser arm, the thin disassembly object is provided. However, when the object to be dismantled is held at multiple locations and the member to be removed from the object to be dismantled is gripped and force is applied in the pulling direction, the object to be dismantled can be fixed without slipping. I can give you.

  FIG. 1 is a side view showing an example of a dismantling machine to which a presser arm according to the present invention is applied. This dismantling machine uses a hydraulic excavator as a base machine. A revolving unit 7 is installed on a traveling unit 5 via a revolving device 6, and a driver's cab 8 and a power unit 9 are mounted on the revolving unit 7. The arm 10 is attached.

  The working arm 10 includes a first arm 11, a hydraulic cylinder 12 that raises and lowers the first arm 11, a second arm 13 that is rotatably attached to the tip of the first arm 12, and the second arm. And a hydraulic cylinder 14 for rotating 13.

  Reference numeral 15 denotes an open / close working tool for gripping a dismantling object, which has a cutting function. The open / close work tool 15 is rotatably attached to the second arm 13 by a hydraulic cylinder 16. The open / close work tool 15 includes a bracket 17 attached to the second arm 13, a turning device 18 with a hydraulic motor attached to the bracket 17, and a frame 19 attached to a body to be turned of the turning device 18. The frame 19 includes a pair of opening / closing bodies 20 and 21 attached to be openable and closable, and a hydraulic cylinder (not shown) that opens and closes at least one of the opening / closing bodies 20 and 21.

Reference numeral 1 denotes a presser arm for pressing a dismantling object placed on the ground 4, and this presser arm 1 is formed by connecting a pair of left and right arms 1a and 1b by one or more horizontal frames 1c as shown in FIG. . As shown in FIG. 1, the presser arm 1 is attached to the front portion of the traveling body frame 5a so as to be swingable up and down around a pin 23. 24 is mounted between the traveling body frame 5a and the pressing arm 1, a hydraulic cylinder for vertically swinging the presser arm 1.

FIG. 3 is an enlarged view of the front portion of the presser arm 1, and a plurality of claws 2 </ b> A to 2 </ b> C are welded to the lower surface of the front portion of the presser arm 1. The tips of these claws 2A to 2C are located on substantially the same straight line S. The tip of the front end claw 2A may be positioned above the line S. 25 is a pressing member which is welded to the tip of the presser arm 1 according to the present invention, simultaneously with the pawl 2A of the front end when the pressing member 25 which hold at a demolition object 3 of 10cm below the thin plate on the ground 4 The position of the ground contact surface 25a is set to a position below the conventional presser arm so that the dismantling object 3 can be pressed. The ground contact surface 25a of the pressing member 25 is positioned above the forward extension of the line S connecting the tips of the plurality of claws 2A to 2C. The pressing member 25 is preferably made of a hard material having higher wear resistance than the pressing arm 1.

  In this manner, the member 25 that touches the upper surface of the thin disassembly target 3 together with the front end claw 2A and presses the disassembly target 3 simultaneously with the front end claw 2A is provided in front of the front end claw 2A in the presser arm 1. Even if the dismantling object 3 is thin, the dismantling object 3 is pressed at a plurality of locations, and when the member to be removed from the dismantling object 3 is gripped by the openable work tool 15 and a force is applied in the pulling direction, the dismantling object 3 can be fixed without slipping, and the efficiency of the dismantling work can be increased.

  The presser member of the present invention is not limited to the above embodiment, and can be implemented in various different forms. For example, as shown in FIG. 4, the presser member 26 has a contact portion with respect to the dismantling object 3 that is not flat but has a sharp shape so that the biting into the dismantling object 3 is good and the dismantling object 3 is fixed well. It may be.

  Further, as shown in FIG. 5, a plurality of claws 2 </ b> A to 2 </ b> C arranged on the lower surface of the front portion of the presser arm 1 with the same purpose as FIG. Further, another nail 2X for pressing the thin dismantling object 3 together with the nail 2A is provided in front of the front nail 2A. The tip of the claw 2X is located above the forward extension of the line S connecting the tips of the plurality of claws 2A to 2C.

  FIG. 6 shows still another embodiment of the presser arm 1 of the present invention. The presser member 27 of this embodiment has a shape bent upward from the extending direction of the front portion of the presser arm 1. A wide contact surface with the dismantling object 3 is formed so that the dismantling object 3 can be more securely fixed to the ground 4. In this embodiment, the unevenness 27a is formed on the ground contact surface so that the slipping of the dismantling object 3 can be prevented more reliably.

It is a side view which shows an example of the dismantling machine to which the presser arm by this invention is applied. It is a top view which shows one Embodiment of the presser arm of this invention. It is a side view which shows one Embodiment of the presser arm of this invention. It is a side view which shows other embodiment of the presser arm of this invention. It is a side view which shows other embodiment of the presser arm of this invention. It is a side view which shows other embodiment of the presser arm of this invention. It is a side view which shows the conventional presser arm.

Explanation of symbols

1: Presser arm, 1a, 1b: Arm, 1c: Horizontal frame, 2A to 2D, 2X: Claw, 3: Dismantling object, 4: Ground, 5: Traveling body, 5a: Traveling body frame, 6: Turning device 7: swivel body, 8: cab, 9: power unit, 10: working arm, 11: first arm, 12, 14, 16: hydraulic cylinder, 13: second arm, 15: openable work tool, 17: Bracket, 18: Swivel device, 19: Frame, 20, 21: Opening and closing body, 23: Pin, 24: Hydraulic cylinder, 25-27: Pressing member, 27a: Concavity and convexity

Claims (1)

A presser arm is attached to the front of the traveling body frame so that it can be swung up and down by a hydraulic cylinder, a working arm is attached to the swivel body installed on the traveling body frame, and an openable work tool is attached to the tip of this working arm In the demolition machine
The presser arm has a plurality of claws arranged in the front-rear direction on the lower surface of the front portion so that the tips are located on substantially the same straight line,
When the presser arm is positioned at a position where a thin dismantling object placed on the ground can be pressed by a front end claw of the plurality of claws, the thin disassembly object is moved together with the front end claw of the plurality of claws. A presser arm for a demolishing machine , wherein a presser member is welded to the tip of the presser arm so that a dismantling object is pressed .

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