JP2511729Y2 - Shackle - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shackle which can be attached to the end of a lifting wire for hoisting steel or the like to be carried by a crane at a construction site or the like and can be easily removed by remote control after the steel is carried.

[0002]

2. Description of the Related Art A conventional shackle is shown in FIG.
As shown in FIG. 3, pin holes 34 and 35 are provided at one ends of leg pieces 32 and 33 that are provided to face the lower part of the shackle body 31, and are pulled into one end into a projecting cylinder 36 provided at a side portion of the leg pieces 33. A shackle pin 38, to which a wire 37 is attached, is removably installed inside the pin holes 34 and 35, and a pulling wire 39 is attached to an end portion of the shackle pin 38.
And a locking pin 41 that engages with.

[0003]

In the shackle having the above construction, the shackle pin 38 and the locking pin 41 are provided with pulling wires 37 and 39, respectively. Therefore, in order to remove the shackle after carrying the object to be suspended, first pull the locking pin 41 with the pulling wire 39 for the locking pin 41 to release the locked state with the shackle pin 38, and then further to the shackle pin 38. The pulling wire 37 for use must be pulled. Since the pulling operations are individually performed in this manner, the operations are complicated and the operation order is incorrect. Further, a considerable traction force was required to release the engaged state of the shackle pin 38 and the locking pin 41. It is an object of the present invention to provide a shackle that solves the above-mentioned problems and that can perform a pulling operation lightly and smoothly.

[0004]

Means for Solving the Problems In order to achieve the above object, a shackle according to the present invention has leg pieces having pin holes formed on both sides of an insertion groove formed in a lower portion, and is engaged with one of the leg pieces. A shackle body having a retaining pin formed therein is formed, and a support cylinder having a shackle pin inserted into the pin hole and a communication tube having a guide hole formed therein are attached to the shackle body, and a roller is provided in the guide hole of the communication tube. Is movably arranged, a pulling wire for actuating the locking pin is attached to the roller, and a pulling wire for pulling the shackle pin is loosened by a predetermined length on the pulling wire for pulling the roller. It is characterized by being connected.

[0005]

Operation: The shackle pin is inserted into the object to be hung, which is inserted into the insertion groove of the shackle body, and the tip of the shackle pin is inserted into the pin hole of the first leg piece. A locking pin urged by a spring is engaged with an engaging hole at the tip of the shackle pin to lock the shackle pin and convey the suspended object. After transportation,
First, the pulling wire is pulled to move the roller in the communication cylinder downward against the biasing force of the spring, and the locking pin is pulled up to release the engagement state with the shackle pin.

At this time, the attachment portion of the shackle pin pulling wire to the locking pin pulling wire is lowered and the slack is extended. Further, by pulling, the shackle pin pulling wire is pulled, the shackle pin moves into the support cylinder, and the engagement with the object to be suspended can be released.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a shackle body 1 is provided at its lower portion with an insertion groove 2 for an object to be suspended, and a first leg piece 3 and a second leg piece 4 are formed on opposite sides of the insertion groove 2. There is. A pin hole 5 is formed in each of the leg pieces 3 and 4 in a direction orthogonal to the insertion groove 2.
6 is formed. The shackle pin 7 that is inserted into the pin holes 5 and 6 has a step portion 8 formed at the rear side, and an engagement hole 9 with which the locking pin 13 engages is formed at the front side.

A support cylinder 10 in which a shackle pin 7 is slidably mounted is fixed to a side portion of the second leg piece 4 by a collar portion 15 formed at an opening at the tip thereof. A through hole 11 through which the pulling wire 16 penetrates is provided in the rear portion of the support cylinder 10. The shackle pin 7 housed in the support cylinder 10 is moved until the step portion 8 contacts the side portion of the second leg piece 4, and the tip of the shackle pin 7 is inserted into the pin hole 5 of the first leg piece 3 and is inserted into the insertion groove. 2 is configured to be closed.

Further, an elongated hole 12 communicating with the pin hole 5 of the first leg piece 3 is formed in the front inside of the shackle body 1, and a spring 17 is provided in the elongated hole 12.
Thus, the locking pin 13 is always urged downward to engage with the locking hole 9 of the shackle pin 7. And locking pin 1
One end of the pulling wire 18 attached to the upper part of 3 is led out into a communication tube 21 described later via a roller 19 and a communication hole 20 in the upper part of the shackle body 1.

A communication cylinder 21 is attached between the communication hole 20 in the upper portion of the shackle body 1 and the rear portion of the support cylinder 10.
A guide hole 23 for guiding the roller 22 is formed inside the communication cylinder 21, and one end of the pulling wire 18 led out from the communication hole 20 is attached to the roller 22 movably installed in the guide hole 23. There is.

A pulling wire 24, one end of which is fixed to the lower portion of the communicating tube 21, is hooked on the roller 22, the other end is led out of the communicating tube 21, and the other end of the pulling wire 16 of the shackle pin 7 is placed below the pulling wire 24. It is installed. In this way, since one end of the pulling wire 24 that is hung on the roller 22 that moves in the guide hole 23 is fixed, the pulling force of the pulling wire 24 is half the elastic force of the spring 17 and the pulling operation is performed. Can be done lightly and smoothly.

The pulling wire 16 is attached to the pulling wire 24 with a predetermined length of slack. That is, when the lower portion 27 of the attachment portion 26 of the pulling wire 16 and the pulling wire 24 is pulled, the locking pin 13 is pulled up in the elongated hole 12 against the urging force of the spring 17 and engaged with the shackle pin 7. The state is released. It is attached with a slack for the pulling distance until it is released.

Next, the operation of the embodiment will be described with reference to FIGS. 1 and 2. First, a steel material or the like to be suspended having an engagement hole with which the shackle pin 7 engages is inserted into the insertion hole 2 of the shackle body 1. Shackle pin 7 is provided in the engaging hole of the suspended object.
The shackle pin 7 is inserted into the pin hole 5 of the first leg piece 3, and the locking pin 13 is inserted into the engaging hole 9 by the biasing force of the spring 17 to lock the object to be hung. . The suspended object is hung by the shackle body 1 while being inserted into the insertion hole 2.

In this state, since the shackle pin 7 is locked, the shackle pin 7 does not accidentally come off during transportation of the object to be hung, and the object to be hung does not drop. After the suspended object is conveyed, the lower portion 27 of the pulling wire 24 is pulled to pull the roller 22 downward in the communication cylinder 21 against the elastic force of the spring 17, and the locking pin 13 is pulled up. The engagement state of the shackle pin 7 with the engagement hole 9 is released.

At this time, since the pulling force of the pulling wire 24 is fixed at one end of the pulling wire 24 hung on the roller 22, the pulling force will be half of the elastic force of the spring 17 and thus the pulling operation. Can be done lightly and smoothly.

By the pulling operation, the attachment portion 26 of the pulling wire 16 moves downward, and as shown in FIG.
The slack in 6 is extended. Further pull wire 24
The pulling wire 16 pulls the support tube 1 downward
It is pulled through the roller 25 at the 0 rear end.

At this time, since the shackle pin 7 is already released from the engagement state with the locking pin 13, the shackle pin 7 is moved into the support cylinder 10 by the pulling wire 16 to remove the shackle pin 7 from the object to be suspended. You can Since the locking pin pulling wire 24 and the shackle pin pulling wire 16 are connected to each other in this manner, it is not necessary to individually pull each, and the pulling operation can be easily performed. Further, during the pulling operation, in the conventional shackle, since the pulling direction is downward, the pulling wires 37, 39 may be scraped off at the corners of the projecting tube 36, but in the present embodiment, the rollers 19, 22, 25 are worn. Of the pull wires 16 and 1
8 and 24 are not worn out.

[0018]

EFFECTS OF THE INVENTION The present invention pulls the locking pin by the movable roller and the pulling wire fixed at one end to release the engaged state of the shackle pin, so that a small pulling force is required and the pulling operation is light and smooth. Can be done. Also,
Since the shackle pin pulling wire is loosened and connected to the locking pin pulling wire to form a single pulling wire, a series of pulling operations are sufficient to simplify the pulling operation.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an embodiment.

FIG. 2 is an operation explanatory diagram of the embodiment.

FIG. 3 is a vertical sectional side view of a conventional shackle.

[Explanation of symbols]

 1 Shackle body 2 Insertion groove 3 1st leg piece 4 2nd leg piece 5, 6 Pin hole 7 Shackle pin 9 Engagement hole 10 Support tube 11 Through hole 12 Long hole 13 Locking pin 15 Collar part 16, 18, 24 Traction Wire 17 Spring 19, 22, 25 Roller 20 Communication hole 21 Communication cylinder 23 Guide hole

Claims (1)

(57) [Scope of utility model registration request] 1. A shackle body having pin holes formed on both sides of an insertion groove formed in the lower portion, and a shackle body having a locking pin internally provided on one of the leg pieces, the shackle body having:
A support cylinder having a shackle pin inserted through the pin hole and a communication cylinder having a guide hole formed therein are attached, and a roller is movably arranged in the guide hole of the communication cylinder and the locking pin is attached to the roller. Install the puller wire to operate, and
Further, a shackle in which a pulling wire for pulling the shackle pin is connected to the pulling wire for pulling the roller while slackening the pulling wire by a predetermined length.