JP2003321189A - Remote operation type suspension tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote operation type suspension tool capable of suspending a held article such as a steel material and a structure with an engagement hole, and easily removable from the held article with a remote operation. <P>SOLUTION: U-grooves of nut members 6 and 7 are aligned with an outer periphery of an annular groove 3 of a pin 1. When the nut members 6 and 7 are closed under a condition that a stopper 8 is moved to an opening position and the stopper 8 is rotated to a fastening position, the other ends of the nut members 6 and 7 are restrained by a holding member of the stopper 8, hooks 10 and 13 of the stopper 8 and a lock member 11 are engaged with each other to lock the stopper 8. At the time of removal, when wires A and B are pulled downwards, the hooks 13 and 10 are disengaged from each other to release the lock of the stopper 8. By further pulling the wire A, the stopper 8 moves from the fastening position to a releasing position, so that the nut members 6 and 7 are opened and disengaged from the pin 1. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote-controlled lifting tool, and more particularly to a remote-controlled lifting tool for suspending an object to be held such as a steel material or a pipe with a flange in which an engagement hole is formed. Is.

[0002]

2. Description of the Related Art Conventionally, a nut tightening type suspender has been used as a jig for suspending a steel material having holes and a structure. The pin attached to the suspender body is inserted into the hole of the steel material or structure, and in this state, the tip of the pin is tightened with a nut so that the pin does not come off from the suspender body. By using such a suspender, a heavy steel material or structure can be reliably suspended.

[0003]

However, in the case of sequentially stacking steel materials and the like, in order to remove the hanging equipment from the steel material after installing the steel material suspended by the hanging equipment at a high place, There is a problem that the worker needs to go to the mounting position to perform the work, which is troublesome.

The present invention has been made in order to solve such problems, and it is possible to suspend an object to be held such as a steel material or a structure having an engaging hole and easily remove it from the object to be held by remote control. An object of the present invention is to provide a remote-controlled hanging device that can be operated.

[0005]

SUMMARY OF THE INVENTION A remote-controlled hanging device according to the present invention is hinged to a pin inserted through an engaging hole formed in an object to be held so as to be openable and closable and closed. The nut member is rotatably attached to one nut member between a pair of nut members engaged with the tips of the pins, a fastening position for holding the pair of nut members in a closed state, and an open position for releasing each other. A stopper, a stopper urging means for urging the stopper in the direction of the fastening position, and a stopper wire having one end attached to the stopper, and the other end of the stopper wire is pulled to apply the urging force of the stopper urging means. By rotating the stopper to the open position, the pair of nut members are opened and removed from the tips of the pins.

A lock member rotatably attached to one of the nut members between a lock position for locking the stopper at a fastening position and a release position for unlocking the stopper;
A lock member urging means for urging the lock member in the direction of the lock position; and a lock member wire having one end attached to the lock member, and the other end of the lock member wire while pulling the other end of the lock member wire. It is preferable to rotate the lock member to the release position and the stopper to the open position by pulling the end.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show the structure of the remote-controlled hanging device according to the embodiment. The pin 1 for passing through the engaging hole of the object to be held has a hanging hole 2 formed at the base end thereof and an annular groove 3 formed at the distal end thereof, and the nut 4 is fitted into the annular groove 3. Has been done. The nut 4 comprises a pair of nut members 6 and 7 hinged to be openable and closable about a pin 5 at one end, and a stopper 8 for holding the nut members 6 and 7 in a closed state is provided with a bolt 9. Is attached to one of the nut members 6. The stopper 8 is rotatable around the bolt 9 between a fastening position shown by a solid line and an open position shown by a chain line. A hook 10 is formed at one end of the stopper 8, and a stopper wire A is attached to the other end.

A lock member 11 for locking the stopper 8 at the fastening position is rotatably attached to the nut member 6 with a bolt 12. A hook 13 that engages with the hook 10 of the stopper 8 is formed at one end of the lock member 11, and a pin 14 is formed so as to project between the bolt 12 and the hook 13, and the pin 14 is formed on the nut member 6. The rotation range of the lock member 11 is regulated by being inserted into the elongated hole 15. The lock member wire B is attached to the pin 14.

Further, the nut member 6 is provided with a spring 16 as a stopper urging means for urging the stopper 8 toward the fastening position, and the hook 13 of the lock member 11 is attached to the hook 10 of the stopper 8. A spring 17 is provided as a lock member urging unit that urges the lock member in the direction of the engaged lock position.

The nut member 6 has a structure as shown in FIGS. 3 (a) and 3 (b), and has a through hole 18 for passing the pin 5 formed at one end and a central part at the center. A U-shaped groove 19 is formed so as to come into contact with the outer peripheral portion of the annular groove 3 of the pin 1. Bolts 9 and 12 are provided on the other end of the nut member 6.
Are formed with bolt holes 20 and 21 for fixing, and pin holes 22 and 23 for attaching a pin for stopping one end of the springs 16 and 17 are formed.

The other nut member 7 is also shown in FIG.
As shown in (b) and (b), a through hole 24 for passing the pin 5 is formed at one end, and a U groove 25 is formed in the central portion so as to abut the outer peripheral portion of the annular groove 3 of the pin 1. ing.

These nut members 6 and 7 are shown in FIG.
As shown in (a) and (b), the pin 5 which is combined so as to overlap each other and is inserted into the through holes 18 and 24 can be opened and closed freely. When the nut members 6 and 7 are closed together, both U-grooves 19 and 25 cooperate to form a through hole that covers the outer peripheral portion of the annular groove 3 of the pin 1. 5 (a) and 5 (b) show the pins 26 and 27 that are mounted in the pin holes 22 and 23 of the nut member 6, respectively.

As shown in FIGS. 6 (a) and 6 (b), the stopper 8 has a hook-shaped holding portion 2 for holding the other ends of the nut members 6 and 7 which are closed and superposed on each other.
8 is formed to project. Further, the stopper 8 is formed with a through hole 29 through which the bolt 9 is passed and the spring 1
A pin 30 for stopping the other end of 6 is attached, and a through hole 31 for connecting one end of the wire A is formed.

Next, the operation of the remote-controlled lifting tool according to this embodiment will be described. First, the hook 10 of the stopper 8 is removed from the hook 13 of the lock member 11, and the spring 1
The stopper 8 is moved against the biasing force of 6 to the open position shown by the alternate long and short dash line in FIG. As a result, the other end of the nut member 7 is disengaged from the holding portion 28 of the stopper 8, and both nut members 6 and 7 are in a state where they can freely rotate about the pin 5. Therefore, the nut members 6 and 7 are opened and removed from the annular groove 3 of the pin 1.

Then, the pin 1 is made to penetrate through an engaging hole formed in a steel material as a held object, a pipe with a flange, or the like. Next, the U groove 1 of the nut members 6 and 7 in the opened state
9 and 25 are aligned with the outer peripheral portion of the annular groove 3 of the pin 1, and the stoppers 8 are moved to the open position against the biasing force of the spring 16, and the nut members 6 and 7 are closed to overlap each other. To match.

When the stopper 8 is rotated in the direction of the fastening position, one end of the stopper 8 where the hook 10 is formed comes into contact with one end of the lock member 11 so that the lock member 11 is attached with the spring 17. When the stopper 8 moves while rotating around the bolt 12 against the force and reaches the fastening position, the hook 10 and the lock member 11 of the stopper 8 are moved.
And the hooks 13 are engaged with each other to lock the stopper 8. The other end portions of the nut members 6 and 7 are restrained by the holding portion 28 of the stopper 8, and the nut members 6 and 7 are held in a closed state. That is, the nut 4 is the pin 1
It is fitted in the annular groove 3 of. Since the stopper 8 is locked by the lock member 11, the stopper 8 cannot be moved from the fastening position to the open position unless the lock is released.

In this way, the remote-controlled lifting tool is attached to the object to be held, and the object to be held is hung with a crane or the like using the hanging hole 2 of the pin 1. Then, after the installation of the object to be held is completed, the work of removing the remote-controlled hanging device from the object to be held is performed. At this time, the worker operates the lock member 1
While pulling the lock member wire B attached to 1 downward, the stopper wire A attached to the stopper 8 is pulled downward. As a result, the lock member 11 and the stopper 8 rotate against the biasing forces of the springs 17 and 16, respectively, and both hooks 13 and 10 are disengaged from each other, and the lock member 11 reaches the release position, so that the stopper 8 is locked. Is released. Therefore, by further pulling the stopper wire A, the stopper 8 moves from the fastening position to the open position, and the other end of the nut member 7 is disengaged from the holding portion 28 of the stopper 8.

Here, since the stopper 8 is attached to the outer surface of the nut member 6, when the wire A is pulled, a moment is generated in the nut member 6 with respect to the pin 5 which is the center of rotation thereof. 6 and 7
Open to each other and come out of the annular groove 3 of the pin 1. That is, by simply pulling the wires A and B downward, the nut 4 can be easily removed from the pin 1 by remote control without directly touching the lock member 11 or the stopper 8.

Therefore, a remote-operated hanging device which is extremely useful for sequentially stacking objects to be held such as steel materials and flanged pipes having engaging holes formed therein can be realized. Further, the remote-controlled hanging device according to the present invention can be used not only for hanging steel materials and pipes but also for hanging structures.

[0020]

As described above, according to the present invention, it becomes possible to suspend an object to be held such as a steel material or a structure having an engaging hole and easily remove it from the object to be held by remote control. .

[Brief description of drawings]

FIG. 1 is a side view showing a remote-controlled hanging device according to an embodiment of the present invention.

FIG. 2 is a front view showing the remote-controlled hanging device according to the embodiment.

FIG. 3 shows one nut member, (a) is a plan view,
(B) is a side view.

FIG. 4 shows the other nut member, (a) is a plan view,
(B) is a side view.

FIG. 5 shows a state in which both nut members are combined, (a) is a plan view, and (b) is a side view.

FIG. 6 shows a stopper, (a) is a plan view, and (b) is a side view.

[Explanation of symbols]

1 pin, 2 suspension holes, 3 annular groove, 4 nuts, 5,
14,26,27,30 pin, 6,7 nut member,
8 stoppers, 9 and 12 bolts, 10 and 13 hooks,
11 lock member, 15 long hole, 16, 17 spring, 1
8,24,29 through hole, 19,25 U groove, 20,2
1 bolt hole, 22, 23 pin hole, 28 holding part,
A, B wire.

Claims (2)

[Claims] 1. A pin passed through an engagement hole formed in an object to be held, and a pair of nut members which are hinged to each other so as to be openable and closable with each other and which are engaged with a tip portion of the pin in a closed state. A stopper mounted on one of the nut members so as to be rotatable between a fastening position for holding the pair of nut members in a closed state and an open position for opening the pair of nut members, and urging the stopper toward the fastening position. And a stopper wire having one end attached to the stopper, and pulling the other end of the stopper wire to move the stopper to the open position against the urging force of the stopper urging means. A remote-controlled hanging device, characterized in that the pair of nut members are opened to be removed from the tip end portion of the pin by rotating. 2. A lock member attached to the one nut member so as to be rotatable between a lock position for locking the stopper at a fastening position and a release position for unlocking the stopper, and the lock member. A lock member urging means for urging in the direction of the lock position, and a lock member wire having one end attached to the lock member, and the other end of the stopper wire while pulling the other end of the lock member wire. The remote control hanging device according to claim 1, wherein the lock member is rotated to the release position and the stopper is rotated to the open position by pulling.