JP2531785Y2 - Earthwork grabber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an earthwork gripping device suitable for gripping and transporting materials such as concrete boundary blocks.

[Problems to be solved by the invention]

Since concrete construction materials such as boundary blocks are very heavy, transporting them manually requires heavy labor and is dangerous. If you try to grip and transport this using a power gripping device such as an iron fork, the conventional iron fork etc. is suitable for demolition of buildings because the tip is a sharp edge of steel, but when gripping the boundary block Often, the corners of the block were damaged, making it unusable, and there was a risk of occupational accidents due to slippage.

An object of the present invention is to completely grasp and transport a boundary block or the like without damaging a fork by attaching and detaching a claw having a cutting edge made of a flexible material such as rubber to a fore end of a fork member. It is an object of the present invention to provide a multipurpose iron fork that can be used and can be used for dismantling work as an original iron fork by simple nail replacement.

[Means for solving the problem]

In order to achieve the above object, the present invention provides an earthwork gripping device that swings a pair of fork members 4 and 5 facing each other by a link mechanism driven by a hydraulic cylinder or the like in opposite directions with each base as a fulcrum. In the fork members 4,5
Adapters 4b, 5b with hooks at the tip of each fork 4a, 5a
And a gripping claw member 13 having a pad 13b made of rubber or the like attached to the distal end thereof is detachably attached to the adapters 4b and 5b.

[Action of the invention]

When grasping and transporting earthwork materials such as concrete blocks, the gripper of the present invention works by attaching the nail with the pad to the nail adapter at the tip of the fork. You.

Further, even if the nail pad wears due to use, it can be used as a normal nail as it is, and if the normal nail is replaced with a nail adapter, it can be used as an original dismantling iron fork.

[Example of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the gripping device 1 has a pair of fork members 4 and 5 having operation links 2 and 3, and the bases of the fork members 4 and 5 are pivotally mounted on a connecting frame 7 by pins 6. And is integrally attached to the tip of the earthwork machine main body arm 8 via the connecting frame 7.

The first and second links 2 and 3 of the fork members 4 and 5 are supported by a tip support shaft 11 of a hydraulic cylinder rod 10 supported by a guide link 9 and operated by expansion and contraction of a cylinder 12.
By the operations of 3, 9, the pair of fork members 4, 5 open and close in opposite directions to grasp an object.

The above structure is the same as a so-called conventional iron fork, and is known per se.

The gripping device according to the present invention is characterized by a pair of fork members 4,
A nail engaging adapter 4b, 5b is integrally fixed to the tip of each of the forks 4a, 5a by welding or the like, and a material such as rubber or synthetic rubber is attached to the tip of the nail body 13a detachably attached to the nail adapter. The gripping claw member 13 to which the pad 13b is fixed is detachably attached to each of the claw adapters 4b and 5b.

As shown in FIG. 2, the gripping claw member 13 is
The abutment 13b is attached to a contact portion (usually a distal end portion) of the claw body 13a mounted on the a, 5a with the object to be grasped by strong fixing means such as baking coating. Also, the claw adapters 4b and 5b on the forks 4a and 4b side and the claw members for gripping are used.
The thirteen claw bodies 13a are detachably connected by using engagement pins and other connecting means.

Thus, when the gripping device of the present invention grips and transports a concrete boundary block or the like, the fork member 4,
Claw adapter 4b, 5 fixed to the tip of the fork 4a, 5a
As shown in FIG. 1, the claw body 13a of the gripping claw member 13 is male and female fitted to b, and integrally connected by an insertion pin (not shown) or another detaching mechanism. Then, the front end patch 13b of the gripping claw member 13 attached to the pair of fork members 4, 5 is gripped and transported by sandwiching it from both sides of the concrete block 14.

When used as an iron fork for dismantling, the gripping claw member 13 may be removed and a normal claw may be attached.

If the pad is attached to the abutment part of the claw body 13a with the block 14, the purpose is achieved.However, in the case of a so-called detachable structure that can be used on both sides, the claw adapter can be attached to the claw adapter by turning it over, In this way, the pad 13b is fixed so as to reach the back surface surrounding the distal end of the nail body 13a. Thus, the gripping claw member 13 can be used upside down even if one side of the pad 13b is worn.

[Effect of the invention]

The gripping device of the present invention grips the block with a gripping claw member to which a pad such as rubber is attached, so that the block can be safely and securely gripped and transported without damaging the block. Since the gripping claw member is detachable from the fork, it can be replaced when the pad is worn, and the claw itself can be used as a normal claw even if the pad is worn.

Further, if the gripping claw member is replaced with a normal claw, it can be used as an original dismantling iron fork.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of an earthwork grasping device according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of a grasping claw member attached to the grasping device of the present invention. 1 ... gripping device, 2,3 ... operation link, 4,5 ... fork member, 4a, 5a ... fork, 4b, 5b ... claw fastening adapter, 7 ... connecting frame, 8 ... arm, 12 ... Hydraulic cylinder, 13 ... Claw member for gripping, 13a ... Claw body, 13b ...
Patch, 14 ... Concrete block.

Claims (2)

(57) [Scope of request for utility model registration] An earthwork gripping device in which a pair of fork members (4, 5) opposed by a link mechanism driven by a hydraulic cylinder or the like swings in opposite directions about each base. Each fork member 4
a, 5a A gripping claw member 13 with a nail engaging adapter 4b, 5b fixed to the tip and a pad 13b such as rubber attached to the tip by a firm fixing means such as baking coating.
Characterized in that it can be detachably attached to the adapters 4b and 5b. 2. The adapter 4b, wherein the gripping claw member 13 is engaged with a claw.
The gripping device for earthwork according to claim 1, wherein both sides of the gripping member (13) can be used by turning over, and the pad (13b) is fixed so as to reach the back surface of the tip of the nail body (13a) of the gripping nail member (13).