JP3275192B2 - Article conveying method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a method and an apparatus for transporting an article such as a tie bar that suspends and transports a long object.

[0002]

2. Description of the Related Art In addition to hooks, electromagnets are used as hanging brackets of cranes for suspending and transporting loads such as iron materials, tie bars, and steel. When using a hook for the crane's hanging bracket,
Although it is necessary to wire the suspended load, when an electromagnet is used, the suspended load can be detached only by exciting and demagnetizing the electromagnet.

[0003] Therefore, when an electromagnet is used for the hanging bracket, no man-hour is required for attaching and detaching the conveyed article to and from the crane. Therefore, it is considered that the use of the electromagnet is extremely advantageous for automating article transport management. Can be

[0004]

However, even if an electromagnet is used for the hanging bracket of the crane, if the power supply to the electromagnet is interrupted due to a power failure or an unexpected accident during the transportation of the suspended load, the suspended load falls, Due to danger, it is a fact that an auxiliary article support mechanism is provided separately from the electromagnet as a safety measure.

[0005] As a conventional support mechanism, for example, as shown in FIG.
And the arm end 23 is further extended inward, so that the suspended load M
There is known a device having a mechanism projecting to the lower surface side of the device.
According to this support mechanism, when the suspended load M being conveyed falls away from the electromagnet 21, the arm end 23 having its lower surface bent is provided.
To prevent falling onto the floor below.

However, since the above supporting mechanism uses a hydraulic mechanism for controlling the vertical movement and the rotational movement of the arm 21, the equipment is large and heavy, and in the case of an overhead crane, a reinforced structure is required for the overhead beam. However, in some cases, there is a problem that the building requires a larger reinforcing structure. However, to solve this problem,
Although it is easy to wire-hang a suspended load and stop it on a crane by hand, the labor required for unloading and unloading the suspended load is contrary to the purpose of automating the transport of goods. , And the work is dangerous.

An object of the present invention is to provide a method and an apparatus for transporting articles, which have a very simple structure and take safety measures to prevent falling of a suspended load.

[0008]

To achieve the above object, according to an aspect of, in the transfer method of an article according to the present invention, a crane, comprising a base body of the distribution machine hanging bracket carrying this by lifting the load, such as an object raising machine The present invention relates to a method of conveying an article in which a conveyed article is held in a curved arm and conveyed , wherein the curved arm is bent in a hook shape with one end being a free end, and a load of the conveyed article is provided.
Waiting position when loading or unloading is completed,
The posture is changed to the receiving position where
Is held in a horizontal position above the support position of
Gap between free end of base and curved arm while changing posture to vertical posture
The conveyed article is received into the curved arm through the gap,
The arm is held in a vertical position to receive the article in the hook.

In addition, the bent arm is held in a standby horizontal posture.
In this state, the article is adsorbed to the substrate, and the bent arm is set at 180 ° from the beginning.
By turning, the free end of the curved arm rises upward
To convert the product into a vertical position for receiving
It is.

[0010]

[0011]

[0012] Further, a hanging string connected between the hanging metal fitting and the free end of the bent arm holds the article in the bent arm.
An article is transported while a part of the article is supported on a hanging string.

Further, in the article transporting apparatus according to the present invention, there is provided an article transporting apparatus having a base and an operating body, wherein the base is a lifting device of a distribution machine such as a crane or a hoist for lifting and transporting the load. a portion corresponding to the bracket, is supported in a horizontal position, actuating body, and a turning shaft and Kyokuude together, turning shaft is supported in turn capable base, Kyokuude is rolling
It forms an angle of about 45 ° with respect to the rotation axis and bends in a hook shape with one end being a free end. The rotation of the rotation axis is centered on the rotation axis in conjunction with the rotation of the rotation axis to discharge or unload the conveyed articles.
Standing posture at the time of unloading completion and acceptance to hold conveyed goods
The posture is converted to the posture, and in the standby posture, the posture becomes the horizontal posture.
Waiting above the support position of the article
The conveyed article into the curved arm through the gap between the
In the entering and receiving posture, the free end of the curved arm rises upward,
For holding the transported article in a curved arm in a vertical position
It is.

The curved arm is held in a horizontal posture in a standby posture.
And by turning it 180 ° from the beginning,
Hold the held item and change to the vertical receiving position.
Is replaced.

[0015]

[0016] A hanging string such as a chain or a rope is provided, and the hanging string is connected between the base and the free end of the curved arm of the operating body, and is held in the bending arm in the receiving posture of the operating body. It functions as a support for the conveyed parts.

[0017]

[Action] When the turning axis is rotated 180 ° in one direction from the state where the bending arm of the operating body is kept in the standby posture, the bending arm turns around the axis of the rotation shaft and the posture becomes the receiving posture. Is converted. The turning direction of the turning shaft is a direction in which the free end of the curved arm is rotated downward. When the suspended load is suction-held on the lower surface of the base, the suspended load is received in the space between the free end of the bent arm and the base, and the suspended load is held in the bent arm.

When the suspended load is released and dropped due to a power failure or the like during transportation, the suspended load is received by the curved arm. In addition, if a suspension string is connected between the free end of the curved arm and the base, the suspended load adsorbed on the substrate will be held by the suspension string together with the curved arm, and the suspended load dropped from the substrate will be suspended. You can catch it with a string.

Depending on the article to be conveyed, the present invention is not limited to the case in which an electromagnet is used as the hanging metal and the article is held by suction on the substrate. The article can be held and transported only by the operating body or the combination of the operating body and the hanging string.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which the device of the present invention is applied as a safety device for a hanging bracket of an overhead crane.

The hanging fitting 1 has an electromagnet 3 for attracting a conveyed article on the lower surface of the base 2. The embodiment is used for transporting a long unity steel material, and electromagnets 3 and 3 are provided on both lower surfaces in the longitudinal direction of a base 2, and the base 2 is a beam suspended from a club (not shown) running on a crane girder. 4 and is held in a horizontal posture integrally with the forked branch rods 4a, 4a.

In the present invention, an operating body 5 is provided on the base 2. The branching rods 4a, 4a are attached to both longitudinal ends of the base 2, and in the embodiment, the branching rods 4a, 4a.
“a” forms a part of the base 2 and also serves as a mounting portion of the operating body 5.

The operating body 5 comprises a turning shaft 6 and a curved arm 7 as shown in FIG. The turning shaft 6 is rotatably supported by the support cylinder 8 on the branching rod 4a in an inclined posture toward both ends in the longitudinal direction of the base 2 and the bent arm 7 holds the tip of the turning shaft 6 by about 45 degrees.
This is a portion which is bent at a constant angle of about .degree., Its extended end is extended to both ends of the substrate 2, and further bent in a hook shape within the same plane at a bending angle with respect to the turning shaft 6. Between the free end 7a of the bent arm 7 folded in the direction of the base 2 and the base 2,
They are kept at regular intervals. The hook-shaped shape and inner diameter of the curved arm 7 are not particularly limited, and may be any shape and size necessary to hold the outer diameter of a bound steel material or the like suspended on the base 2.

FIG. 2 shows a state in which the curved arm 7 is kept in a standby posture. When the turning shaft 6 is turned in the direction of the arrow from the state where the bent arm 7 is held in the standby position, when the turning shaft 6 is turned 180 ° from the beginning, the bent arm 7 moves to the receiving position as shown in FIG. Is converted.

The rotation shaft 6 of each operating body 5 is provided with 180
A driving device 9 that rotates in the forward and reverse directions at a turning angle of ° is connected. The driving device 9 is an electric motor or a hydraulic motor. However, it can also be rotated and driven manually.

In the embodiment, with the bent arm 7 held in the standby position as shown in FIG. 2, the base 2 is lowered to just above a conveyed article M placed on the floor, for example, a binding steel material, and the power is turned on. 3 is excited so that the article M is attracted to the attracting surface of the electromagnet 3. Next, the base 2 is lifted up to convey the article M to a predetermined location. During this time, the driving device 9 is driven to rotate the turning shaft 6 in the direction of the arrow, and the article M is placed on the base 2 and the curved arm. 7, the free end 7a of the bent arm 7 rises upward as shown in FIG. 3 when it is turned 180 ° from the beginning, and the article M is placed in the bent arm 7. Will be caught in.

However, as is apparent from FIG. 2, the length of the projecting M of the article M from both ends in the longitudinal direction of the base 2 is
Must be within the range of the inner diameter of Free end 7 of curved arm 7
a is locked and fixed to the clasp 10 attached to the base 2. As long as the inner diameter of the hook of the curved arm 7 is larger than the outer diameter of the article M attracted to the electromagnet 3, the weight of the article M is not applied to the curved arm 7. However, during the transportation of the article M,
When a power failure occurs, the suction force of the article M is lost and the article M falls, but both ends of the article M are received by the curved arm 7 of the operating body 5 and fall on the floor is prevented.

In the above embodiment, an example has been described in which the conveyed article M is received on the curved arm 7 when a power failure occurs during the conveyance. Therefore, according to this embodiment, the bent arm 7 needs to have enough strength to support the weight of the conveyed article M.

The angle between the curved arm 7 and the turning shaft 6 is 4
When the angle is set to 5 °, the standby posture of the bending arm 7 is a horizontal posture, and the receiving posture is a vertical posture, which is preferable. Thus, the angle between the curved arm 7 and the turning shaft 6 is approximately
It is set at a constant angle of about 45 ° and has a substantially horizontal posture
It is only necessary to hold and wait above the support position, not necessarily
It doesn't have to be exactly horizontal.

If the hook of the bent arm 7 is vertical, the receiving posture is not excessive when the weight is received on the bent arm 7. Is no problem. The same applies to the following embodiments.

FIG. 4 shows an example in which a conveyed article is received by using a hanging string 11 of a fixed length such as a chain, a wire, a rope or the like separately from the curved arm 7. The hanging string 11 has one end thereof connected to the base 2.
And the other end may be attached to the free end 7a of the curved arm 7.
However, as shown in FIG. 4, the length of the suspending string 11 is set to a length such that the curved shape formed by the suspending string 11 when the curved arm 7 is in the receiving posture is within the inner diameter of the curved arm 7. Need to be kept. In this embodiment, when a power failure occurs during the transportation of the article M, the article M dropped from the electromagnet 3 is received on the suspension string 11, and the curved arm 7 functions as a guide for the suspension string 11.

In the present invention, the standby posture of the bent arm 7 is the posture when unloading or unloading is completed, and the receiving posture is the posture when holding the conveyed article M. Therefore, when the base 2 is lowered on the article M on the floor, the bent arm 7
Is held above the support position of the article in the standby posture, so that it does not hinder the suction and holding of the article M, and is formed below the article M when it is sucked and held by the electromagnet 3 and pulled up. Using the space, the bending arm can be changed from the standby posture to the receiving posture.

As described above, in the embodiment, the example in which the transfer device of the present invention is applied to a safety device of a crane using an electromagnet as a hanging bracket is shown. Needless to say, in combination with 11, the article M can be conveyed as it is by using it as an independent hanging crane of the crane, supporting a part of the article M on the curved arm 7 of the operating body 5 or on the hanging string 11.

[0034]

As described above, according to the present invention, it is only necessary to attach an operating body and its driving device as a safety device for a crane or other logistics machine using an electromagnet as a hanging bracket, the mechanism is simple, and the weight is small. The safety device is reduced in size and weight, and the automation of cargo handling can be easily realized. In addition to the use as a safety device, an operating body or a combination of an operating body and a hanging string Thus, there is an effect that can be used for an independent hanging bracket. Further, it is convenient to attach the curved arm to the turning shaft in a detachable manner. The bent arm can be easily obtained by bending a bar or the like, and can be used by being attached to a turning shaft as a replacement part in case of breakage.

[Brief description of the drawings]

FIG. 1 is a view showing a crane safety device to which the present invention is applied.

FIG. 2 is a diagram illustrating a posture of the operating body during standby.

FIG. 3 is a view showing a posture of the operating body at the time of operation.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a view showing a conventional example of a crane safety device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suspension fitting 2 Base 3 Electromagnet 4 Beam 4a Branching rod 5 Actuator 6 Rotating shaft 7 Curved arm 7a Free end of curved arm 8 Support cylinder 9 Drive device 10 Clasp 11 Suspension cord

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B66C 1/06 B66C 15/00

Claims (7)

(57) [Claims] 1. A method of transporting articles, such as a crane, a hoisting machine, which lifts a load and conveys the conveyed articles in a curved arm provided on a base of a hanging bracket of a distribution machine for conveying the articles. arm is for curved in a hook-like shape at one end as a free end, wait figure at the completion wholesale unloading or loading of transport goods
Attitude and receiving attitude to hold the conveyed goods
In the standby position, the horizontal position is maintained above the support position of the article.
Holding the body while changing its posture from a horizontal posture to a vertical posture.
The conveyed article into the curved arm through the gap between the
An article transport method characterized in that in a loading and receiving position, the bent arm is held in a vertical position to receive the product in the hook shape. 2. A state in which a curved arm is held in a standby horizontal posture.
Then, the article is adsorbed on the substrate, and the curved arm is turned 180 ° from the beginning.
By turning, the free end of the curved arm rises upward
And transforming it into a vertical position for receiving goods
The article conveying method according to claim 1, wherein: 3. A hanging strap connected between a hanging bracket and a free end of a curved arm, wherein the lower peripheral surface of the article held by the hanging bracket by changing the posture of the curved arm together with the curved arm. 2. When an article falls from the hanging bracket, the article is received on a hanging string to prevent the article from falling to the ground.
A method for transporting an article according to the above. 4. An article having a hanging string connected between a hanging metal fitting and a free end of a bent arm, holding the article in the bent arm and supporting a part of the article on the hanging string to transport the article. The method for conveying an article according to claim 1, wherein: 5. An article conveying apparatus having a base and an operating body, wherein the base is a portion corresponding to a hanging bracket of a logistics machine that lifts and transports a load such as a crane or a hoist. Supported in a posture, the operating body has a turning shaft and a curved arm integrally, and the turning shaft is supported by the base in a rotatable manner;
The curved arm forms an angle of about 45 ° with respect to the rotation axis, and is bent in a hook shape with one end being a free end. The rotation arm rotates around the rotation axis in conjunction with the rotation of the rotation axis, and is conveyed. Load of goods
Waiting position when loading or unloading is completed,
The attitude is converted to and accepted attitude that writing, in the standby posture, water
Stand in a flat position above the support position of the article, and change posture.
At the time of replacement, the conveyed article passes through the gap between the base
In the receiving position, the free end of the bending arm is upward
And hold the conveyed article in the bent arm in a vertical posture.
Article carrying apparatus, characterized in that in which writing e. 6. The curved arm is held in a horizontal posture in a standby posture.
It is turned 180 ° from the beginning, so that it is retained on the substrate.
Converts the vertical position to the receiving position by holding the held item
6. The article according to claim 5, wherein
Product transfer device. 7. It has a hanging string such as a chain or a rope,
The suspending string is connected between the base and the free end of the curved arm of the operating body, and functions as a support for the transport component held in the curved arm in the receiving posture of the operating body. The article conveying apparatus according to claim 5, wherein