JP2589496Y2 - Automatic hook device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic hooking device used when a heavy object is suspended and moved by a crane or the like.

[0002]

2. Description of the Related Art When an object is suspended and moved by a crane or the like, the wire rope of the crane is most commonly connected to a slinging wire of the object by a shackle.
The joining operation by the shackle is a completely manual operation, and as described in JP-A-51-146050 (B66C 1/10) and JP-B-55-25594 (B66C 13/18), etc. Various hanging devices have been developed. In these, the hooking operation is automated by operating a hook or the like using an appropriate actuator such as a motor or a hydraulic cylinder in order to connect an article to be suspended to a hoist.

[0003]

In a suspension device in which an appropriate member such as a hook is operated by an actuator to couple an article to a hoist, a device such as a motor or a hydraulic cylinder is used. Large and expensive. In addition, a means for controlling the actuator is inevitably required, and the configuration is complicated and the cost is high.

[0004] The present invention has been made in view of the above-mentioned conventional problems, and has as its object the purpose of suspending an article on a hoist using a simple mechanism that does not use an actuator. An object of the present invention is to provide an automatic hooking device that can be automatically connected.

[0005]

SUMMARY OF THE INVENTION An automatic hooking device according to the present invention is provided with an automatic hooking device which is engaged with an engaged piece of an object to be suspended.
A U-shaped metal fitting which is suspended in an inverted U-shape, and is rotatably attached to one end of the U-shaped metal fitting within a U-shaped plane, and is an entrance of a space inside the U-shaped space. A locking lever that opens and closes a portion, a stopper that is provided at the other end of the U-shaped bracket, and that contacts the lever so that the locking lever does not open outward from a state in which the entrance portion is closed.
The engagement piece is attached to the other end and extends downward.
Guide plate with an inclined surface for guiding to the entry area
When, and a spring for constantly urging the locking lever in a direction to abut on the stopper, the said locking lever, the engagement
When the stop lever is in contact with the stopper bolt,
Extends downward from the U-shaped bracket and pairs with the guide plate.
It has a configuration that has an inclined surface that opens in a C shape
It is a thing.

[0006]

The U-shaped bracket of the automatic hooking device is suspended on a wire rope of a crane or the like, and the bracket is suspended in an inverted U-shape to engage an engaged piece (a hook or loop-shaped handle) of an object. , Etc.) so that the engaged piece hits the locking lever as it descends. Then, the locking lever is opened by being pushed by the engaged piece, and the engaged piece becomes U
We come into space in character. When the engaged piece enters the U-shaped space for a predetermined amount or more, the engaged piece is disengaged from the lever, and the lever is returned by the spring and hits the stopper.
In this state, pull up the U-shaped bracket with a crane, etc.,
The engaging piece is positioned on the locking lever in contact with the stopper, and the target article is lifted. Also, the locking rehearsal
With the U-shaped space closed, the locking lever and the guide
The engaged member is U-shaped below the U-shaped bracket with the plate.
The inclined surface that guides to the entrance part in the space opens in a C shape
Because it is formed, even if there is some displacement with the engaged piece
Quick and reliable engagement can be achieved. In addition, the locking lever
Is always in contact with the stopper
Then, the engaged piece lifts up due to the recoil during lifting.
Can prevent the locking lever from opening at the moment
Failure can be prevented from occurring.

[0007]

1 and 2 show the construction of an automatic hooking device according to an embodiment of the present invention. The U-shaped bracket 1 is formed by integrating a spacer 2 between two U-shaped plates 1a and 1b. The spacer 2 is sandwiched between the central portions of the U-shaped plates 1a and 1b, and a suspension hole 3 is formed penetrating the whole. A wire rope of a crane is connected to the suspension hole 3 via, for example, a shackle. The U-shaped plates 1a, 1b are spaced apart from each other by spacers 2 at the distal ends (lower ends), and have bolt holes formed at both ends thereof so as to penetrate the two plates 1a, 1b, respectively.

The locking lever 5 of this embodiment is formed in a large, substantially triangular shape, is set within the space between the U-shaped plates 1a and 1b, and has a
A bolt 4 attached to one end of the V-shaped fitting 1 penetrates. The locking lever 5 is rotatable about the bolt 4.

A stopper bolt 6 for restricting the movement of the locking lever 5 is attached to the other end of the U-shaped fitting 1, and a small triangular shape is formed between the U-shaped plates 1a and 1b at that portion. A guide plate 7 extends downward and is attached. That is, the guide plate 7
A guide for guiding the joint piece to the entrance of the U-shaped space of the U-shaped bracket 1.
A slope is formed. The spacer 2 of the U-shaped bracket 1
A spring 8 is mounted between the lock lever 5 and the lock lever 5, and the lock lever 5 is constantly urged in the direction of the arrow by this spring force. It is in contact with the stopper bolt 6.

As shown by the solid line, when the locking lever 5 is in contact with the stopper bolt 6, the inclined surface of the locking lever 5 and the inclined surface of the guide plate 7 have a C-shape.
The entrance of the U-shaped space of the U-shaped fitting 1 is connected to the upper part. In other words, the locking lever 5 is extended below the U-shaped bracket 1.
And a pair with the guide plate 7 in the contact state described above.
It has an inclined surface that opens in a V shape. The locking lever 5 cannot rotate in the direction of the arrow from the position in contact with the stopper bolt 6, but can rotate only in the opposite direction. When the locking lever 5 rotates against the force of the spring 8 and comes to the position shown by the dotted line, the entrance portion of the U-shaped fitting 1 closed by the locking lever 5 opens. Note that the biasing force of the spring 8 is relatively weak, and the weight of the entire device is sufficiently weaker than the force acting on the locking lever 5 to rotate it.

In FIG. 1, small circles 10, 10a, 10a
b,... are engaged pieces (members to be hooked by this automatic hooking device, such as hook-shaped handles) of an object to be hung on a crane or the like. The crane's wire rope is connected to the hanging hole 3 of the U-shaped bracket 1, and the apparatus is suspended as shown in FIG. 10a in that state
The device is lowered toward the engaged piece located at the position of.
Then, the engaged piece relatively rises to the position 10b, and further reaches the position 10c along the inclined surface of the locking lever 5. When the apparatus is further lowered, the engagement lever 5 is pushed open by the engaged piece. Accordingly, the engaged pieces are relatively shifted from the position 10c by 10d, 10e, 1e.
It moves into 0f and moves into the U-shaped fitting 1 while moving the locking lever 5 by turning. When the engaged piece is inserted slightly above the position of 10f, the engaged piece is disengaged from the locking lever 5, and the locking lever 5 is rotated by the force of the spring 8 and comes into contact with the stopper bolt 6. Returns to the state. At this time, the engaged piece remains in the space surrounded by the U-shaped bracket 1 and the locking lever 5. When the apparatus is pulled up in this state, the engaged piece comes into contact with the locking lever 5 stopped by the stopper bolt 6 as shown by a position 10 shown by a solid line. Therefore, the article connected to the engaged piece can be lifted by the crane. The above operation does not require direct manual operation, and the device may be lowered and raised in accordance with the position of the engaged piece. The slope of the guide plate 7 functions as a guide for bringing the engaged pieces at the positions 10g and 10h to the position 10c. Furthermore, the locking lever 5
It is urged by the spring 8 and is always in contact with the stopper bolt 6.
The engaged piece lifts up due to the recoil during lifting.
That the locking lever 5 opens at the moment
This can be prevented as much as possible, and the occurrence of an accident can be prevented.

[0012]

[Effects of the Invention] The automatic hooking device according to the present invention has a very simple structure without using an actuator such as a motor or a hydraulic cylinder. In use, the entrance portion of the U-shaped bracket of the present device faces downward. Just lowering the device automatically by rotating the locking lever and entering the U-shaped fitting by simply lowering the device relative to the engaged piece of the target article, and pulling up the device in that state With this, the engaged piece can be hooked and lifted. That is, the work of hooking the target article on the lower end of the wire rope such as a crane can be performed almost automatically. Also, the locking lever is in U-shape
With the space closed, the locking lever and the guide plate
Thus, the engaged member is located below the U-shaped bracket in the U-shaped space.
An inclined surface that guides to the entrance is formed by opening in a C shape
Therefore, even if there is some misalignment with the engaged piece,
The engagement can be reliably performed. In addition, the locking lever
Check whether the spring is always in contact with the stopper
Then, the engaged piece lifts up due to the recoil during lifting.
Can prevent the locking lever from opening at the moment
Failure can be prevented from occurring.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic hooking device according to an embodiment of the present invention.

FIG. 2 is a side view of the automatic hooking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 U-shaped bracket 1a, 1b U-shaped plate 2 Spacer 3 Hanging hole 4 Bolt (rotating shaft) 5 Locking lever 6 Stopper bolt 7 Guide plate 8 Spring 10, 10a, 10b,.

Claims (1)

(57) [Scope of request for utility model registration] An object to be suspended is engaged with an engaged piece.
An automatic hooking device, comprising a U-shaped bracket suspended in an inverted U-shape, and an end of the U-shaped bracket rotatably mounted in a U-shaped plane, and an entrance to a space inside the U-shape. A locking lever for opening and closing a portion, a stopper provided at the other end of the U-shaped bracket, and abutting against the lever so that the locking lever does not open outward from a state in which the entrance portion is closed. The engaged piece is attached to the other end and extends downward.
Guide having an inclined surface for guiding the air to the entrance portion
Comprising a preparative, and a spring which constantly urges the locking lever in a direction to abut on the stopper, the said locking lever, said
With the locking lever in contact with the stopper bolt,
The guide plate extends downward from the U-shaped bracket.
There must be a pair of slopes that open in a C-shape
Automatic hooking device characterized by the above-mentioned .