JPS5848015Y2 - Rebar cutting equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a reinforcing bar cutting device for cutting remaining reinforcing bars after destroying a concrete structure.

When conventional concrete structures such as buildings are destroyed, the reinforcing bars in the concrete remain.

For this reason, in the past, these were removed one by one by means such as gas cutting, but this was very inefficient.

This invention was made with the aim of improving this problem, and is intended to provide a reinforcing bar cutting device that can efficiently cut and remove remaining reinforcing bars vertically and horizontally.

Hereinafter, this invention will be described in detail with reference to an illustrated embodiment "11".

3 in the figure is the main body of this device, which includes a support member 3 for attaching the main body 1 to the tip of a working machine arm 2 of a construction machine (not shown), and a horizontal pin 4 mounted on this support member 3 to rotate automatically. It consists of the attached substrate 5.

The board 5 has a fixed blade 6 at one end, and this fixed blade 6
The base end of the movable blade 1 is rotatably attached to the lower surface of the base side of the movable blade 1 by means of a pin 8.

Further, in the vicinity of the pivot point of the movable blade γ, the base of a clamp claw 90 is located on the upper side of the substrate 5 and is pivotally attached via a long hole 9a to a pin 10. The back portion is pivotally connected to one end of a drive cylinder 12 by a pin 11.

The other end of the drive cylinder 12 is pivotally attached to the base plate 5, and the drive cylinder 12 allows the movable blade γ and the clamp claw 9 to open and close relative to the fixed blade 6 around the pins 8 and 10.

On the other hand, the support member 3 has a downward U-shape, and has a bracket 14 attached to the work machine arm 2 via a pin 13 on the upper surface. The work machine cylinder 16 is connected,
The working machine cylinder 16 allows the entire main body 1 to rotate around the pin 13.

Further, a pair of protrusions 5a protruding from the upper surface of the substrate 5 on the open end side of the support member 3 are pivotally supported by horizontal pins 4, and the substrate 5 is rotatable around these horizontal pins 4. At the same time, one end of each horizontal pin 4 is fixed to a protrusion 5 by a fixing member 1γ.
It is fixed to a.

Further, one of the horizontal pins 4 is formed hollow, and has a spline 4a bored on its inner surface, and this spline 4a.
The rotating shaft 18a of the driving source 18, such as a rotary motor mounted on the end face of the support member 2, is engaged with the rotating shaft 18a,
This rotational drive source 18 allows the substrate 5 to rotate in any direction around the horizontal pin 4.

As shown in FIGS. 4 and 5, the means for rotating the base plate 5 is provided with a pinion 19 that engages with a spline on one of the horizontal pins 4, and a rack cylinder 200 attached to this pinion 19.
Engage the rack 20a and connect the rack cylinder 20aK.
The substrate 5 may also be rotated via the pinion 19 and the horizontal pin 4.

This invention has been described in detail above.When cutting the reinforcing bars remaining after the collapse of a concrete structure, the main body 1 is attached to the tip of a working machine such as a rotating excavator, and the fixed blade 6 is
The reinforcing bars to be cut can be held between the clamp claws 90 and cut between the movable blade 7 and the fixed blade 6, and a plurality of reinforcing bars can be cut at one time, resulting in very high work efficiency.

In addition, by tilting the base plate 5 around the horizontal pin 4 using the rotation drive source 18, it is possible to cut the inclined reinforcing bars, and at the same time, the entire main body 1 can be rotated in the vertical direction around the pin 13 using the working machine cylinder 16. This makes it possible to cut reinforcing bars in the horizontal direction, making the work of cutting and removing reinforcing bars much more efficient than when cutting them manually in the past.

[Brief explanation of drawings]

The drawings show one implementation sequence of this invention, FIG. 1 is a plan view, FIG. 2 is a top view, and FIG. 3 is a sectional view taken along the line ■-■ in FIG.
FIG. 4 is a sectional view of another embodiment, and FIG. 5 is a partially cutaway rear view of the same. 1 is the main body, 3 is the support member, 4 is the horizontal pin, 5 is the board, 6
is a fixed blade, γ is a movable blade, 9 is a clamp claw, and 18 is a rotating drive source.

Claims (1)

[Scope of utility model registration request] The main body 1 is composed of a support member 3 and a base plate 5 which is rotatably mounted on a horizontal pin 4 to the support member 3. A fixed blade 6 is provided on a part of the base plate 5. A clamp claw 9 that is driven by a drive cylinder 12 and clamps the reinforcing bar to be cut between it and the fixed blade 6, and a movable blade 1 that cuts the reinforcing bar are provided, and a part of the supporting member 3 is provided with a horizontal A reinforcing bar cutting device provided with a rotation 5 drive source 18 that rotates a substrate 5 around a pin 4.