JPH09227070A - Hanging jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the posture of a load easily even while hung, in a hanging jig which is connected to the lower end of a wire capable of moving vertically, by disposing a rotating drum which is rotated by a motor and a jig wire wound around the rotating drum by one turn or more on the body of the jig. SOLUTION: A hook 51 attached to the front end of a hanging wire 52 hung from a crane is locked respectively at the holes 39 of side plates 3, 4 to fit a hanging jig 1 in a hanging condition. Rigging is conducted with two rigging ropes 53 to hung a load W locked respectively at the hook 35 to prescribed height by operating a crane. When the load W inclines downwards to the right, for example, a rotating drum 10 is rotated counter-clockwise by a motor 20, utilizing a remote control device to increase the length of one end 30a of a jig wire 30 wound around the rotating drum 10 and decrease the length of the other end 30b. It is thus possible to adjust the posture of the load W in the horizontal condition.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a crane,
The present invention relates to a lifting jig which is connected to a construction cargo handling machine such as a hoist and used when lifting heavy loads or the like.

[0002]

2. Description of the Related Art Conventionally, for example, cranes, hoists and the like (hereinafter simply referred to as cranes) have a rotating drum inside, and the rotation of the rotating drum causes
The height of the hook connected to the lower end of the crane wire can be adjusted. The work of lifting the load by the crane is performed by locking the hook at the lower end of the crane wire to the slinging rope (including the wire) slung on the load, rotating the rotating drum, and lifting the hook to lift the load. I have.

[0003]

However, in the lifting operation, especially when the load is heavy, the posture of the lifted load such as the balance and inclination is stabilized from the viewpoint of the safety of the cargo handling work. Although it is necessary, there is a problem that the work of stabilizing the position of the luggage is very troublesome.

That is, it is practically difficult to determine the exact slinging position of the slinging rope by one operation. Therefore, once the load is operated and the crane is slightly lifted,
After confirming the posture of the luggage, it is necessary to repeat the work of unloading the luggage again and adjusting the sling position. Also, it is difficult to adjust the sling position easily and accurately unless a person who is qualified for sling work is involved.Thus, it is very troublesome to adjust the posture to stabilize the luggage, and the work is improved. It is the actual situation that is desired.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a hanging jig whose posture can be easily adjusted while a load is being lifted.

[0006]

In order to achieve the above object, a hoisting jig according to claim 1 is connected to the lower end of a vertically movable wire to hoist a load to a jig body. , A motor operated by a power source, a rotary drum connected to the rotary shaft of the motor, and a jig wire wound at least once around the rotary drum are arranged and hung at both ends of the jig wire. The posture of the loaded luggage can be adjusted by operating a motor and rotating a rotating drum.

According to this hanging jig, for example, the hook connected to the lower end of the wire of the construction material handling machine is locked to the jig body, and both ends of the jig wire of the jig body are locked to the sling rope for luggage. Let This load is lifted to a predetermined height through a lifting jig by operating the construction cargo handling machine and raising the hook at the lower end of the wire, and in this state, for example, the load is on one side of the jig wire of the lifting jig. If it is inclined to, the motor is operated to rotate the rotary drum in a predetermined direction, and the length of both ends of the jig wire is adjusted to correct the posture of the luggage. The posture of the luggage can be adjusted while it is being lifted by the hanging jig.

The hanging jig according to claim 2 is characterized in that the power source is a battery mounted in the jig body. According to this hanging jig, a power cable for operating the motor is provided. It is not necessary to route the cranes and the like to the crane, and it is possible to prevent the crane itself and the cargo handling work site from becoming complicated.

Further, the hoisting jig according to claim 3 is characterized in that the hoisting jig can be detachably connected to the lower end of the wire. It can be attached and detached as required and can be easily attached to the existing construction cargo handling machine.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 7 show an example of a hanging jig according to the present invention. FIG. 1 is a side view thereof, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. FIG. 4 is a sectional view taken along a line enlarged arrow, FIG. 4 is an enlarged view of a C portion of FIG. 2, FIG. 5 is a schematic perspective view for explaining a use state, and FIGS.

1 to 4, the hanging jig 1 has a jig body 2, and the jig body 2 includes a pair of side plates 3 and 4 and the side frames 3 and 4 at predetermined intervals. It is composed of an upper connecting bar 5 and a lower connecting bar 6 which are connected to each other. A DC 12V (or DC 24V) battery 7 as a power source is installed inside the jig body 2 and the side plate 3, 4 is provided.
The jig body 2 is mounted and fixed on the battery receiver 8 welded and fixed to the inner surface of the jig body 2.

A substantially cylindrical rotary drum 10 is rotatably disposed below the jig body 2. The rotary drum 10 has a cylindrical portion 10a and discs 11a and 11b fixed to both axial end portions of the cylindrical portion 10a, and one disc 11a is provided with a plate 12 at its center position. The shaft member 13 is fixed. The shaft member 13 is a bearing 1 fixed to one side plate 3.
4 is supported. Further, the other disk 11b is integrally provided with a shaft member 15 having an axial hole 15a at its center position, and the shaft member 15 is supported by a bearing 16 fixed to the other side plate 4. ing.

A motor 20 is arranged on the outer surface of the side plate 4 via a plate 18 and a gear case 19. The rotating shaft of the motor 20 is connected to the rotating shaft 19a in the gear case 19 via a gear (not shown), and an end portion of the rotating shaft 19a projects out of the gear case 19 to form a hole 15a in the shaft member 15 of the rotating drum 10. It is fitted non-rotatably. With this gear case 19,
For example, when the brake is applied to the rotation of the motor 20, the motor 2
A rotational force of 0 is controlled.

A cylindrical guide rail 22 is disposed between the side plates 3 and 4 between the rotary drum 10 and the battery 7, and a bracket 23 is provided at a substantially central position in the longitudinal direction of the guide rail 22. It is installed. The bracket 23 has a hole 23 a provided at the center thereof fitted on the guide rail 22 to allow the guide rail 2 to move.
It is attached so as to be rotatable about the two axes (direction of arrow A in FIG. 4) and movable in the axial direction (direction of arrow B in FIG. 4).

The bucerat 23 has a side view L
One ends of a pair of character-shaped arm bases 24 are fixed, respectively. The pair of arm bases 24 are integrated via a bracket 23, and the other ends thereof extend outward and are located on the outer peripheral surface side of the rotary drum 10. When the bracket 23 rotates around the axis of the guide rail 22, the arm base 24 rotates in the seesaw state in the arrow C direction or the arrow D direction of FIG. 1 with the guide rail 22 as a fulcrum. This arm base 24
Thus, the slack of the jig wire 30 under no load, that is, the slack in the unwinding direction of the jig wire 30 wound around the rotary drum is suppressed. In addition, bracket 2
As shown in FIG. 4, a lubricating member 25 is interposed between the armature 3 and the guide rail 22 in order to smoothly rotate and move the arm base 24.

On the other hand, a guide arm 27 is rotatably connected to the other end of the arm base 24 via a pin 26. The guide arm 27 is formed in a substantially L shape in a side view, the ends of the vertical arm portions 27a thereof are respectively connected to the arm base 24, and the horizontal arm portion 27b.
The guide holes 28 are formed in each of the plate thickness directions. As shown in FIG. 1, the guide hole 28 is formed in an arcuate cross-section so that the diameter of the central portion 28a in the plate thickness direction becomes smaller, and a jig wound around the rotary drum 10 is provided in the guide hole 28. Both ends 30a and 30b of the wire 30 are respectively inserted. The guide arm 27 is connected to the arm base 24 via the pin 26 with an appropriate degree of fitting, and its undesired rotation is restricted.

Inside the arm base 24, a pair of plates 31 and 32 (see FIG. 1) extending along the outer peripheral surface of the rotary drum 10 on both sides in the axial direction are fixed in an L shape. Inside the plates 31 and 32, stopper blocks 33 each having a substantially triangular shape in a side view are fixed. The stoppers 34 are fixed to the rotary drum 10 side of the stopper block 33 (four stoppers in total).

The stopper 34 is brought into contact with the outer peripheral surfaces of the disks 11a and 11b of the rotary drum 10, whereby the rotation range of the arm base 24 is restricted, and the jig wire 3 is held.
The protrusion to the side of 0 is prevented, especially when the jig wire 30 is unloaded. Therefore, the stopper 3
4 is set in advance to a dimension such that the guide arm 27 and the arm base 24 can contact the outer peripheral surfaces of the disks 11a and 11b of the rotary drum 10 even when the guide arm 27 and the arm base 24 are moved in the axial direction of the guide rail 22. ing. In addition, the number of stoppers 34 is not limited to four, and for example, two stoppers may be provided to form the disk 11a,
Alternatively, the stopper 34 may be in contact with only one of the cylindrical portions 11b of the rotary drum 10.
It may be configured so that it can contact the outer peripheral surface of 0a.

The jig wire 30 wound around the outer peripheral surface of the rotary drum 10 is wound at least once (three times in the figure) at a substantially intermediate position in the axial direction of the rotary drum 10. Then, the ends 30a and 30b on both sides thereof are drawn out to the side of the rotary drum 10, inserted into the guide holes 28 of the guide arm 27, and drawn out by a predetermined length downward, and hooks 35 (see FIG. 5) at the tip thereof. Are connected and fixed.

A control board 36 (see FIG. 2) is attached to the outer surface of the upper portion of the side plate 4. The control board 36 has, for example, a power switch 37 for making the hanging jig 1 operable. A receiver 38 for receiving a signal transmitted from the remote control device 40 (see FIG. 5) is provided. The receiver 38 may be arranged not only inside the control panel 36 but also above the battery 7, for example. The power switch 37, the receiver 38, etc. are electrically connected to the battery 7, the motor 20, etc. by a cable (not shown). In addition, holes 39 into which hooks 51 of a crane (not shown) are locked are formed in the upper ends of the side plates 3 and 4, respectively.

Next, an example of a method of using the hanging jig 1 will be described with reference to FIGS. First, as shown in FIG. 5, a crane (not shown) is operated to lower the crane wire 50 to a predetermined position, and the hook 51 is attached to the tip thereof.
And the pair of lifting wires 52 having the above are respectively connected. Then, the hooks 51 are locked in the holes 39 of the side plates 3 and 4 of the hanging jig 1, and the hanging jig 1 is attached to the lower end of the lifting wire 52 in a suspended state. Further, the power switch 37 of the control panel 36 of the hanging jig 1 is turned on so that the receiver 38 can receive the signal, and the hanging jig 1 is ready for use.

In this state, two sling ropes 53 are slung on the luggage W in advance, the hooks 35 of the hanging jig 1 are locked to the sling ropes 53, respectively, and then the crane is operated again to suspend the slings. The luggage W is lifted to a predetermined height via the tool 1, and the posture of the luggage W such as balance, inclination, and direction is adjusted as follows.

That is, for example, when the baggage W is tilted downward to the right as shown in FIG. 6, the remote control device 40 is operated to output a signal capable of rotating the rotary drum 10 in the direction of arrow E in FIG. To do. This signal is sent to the receiver 3 of the control panel 36.
When 8 receives, a signal is output to the motor 20 and the motor 2
0 operates and the rotary drum 10 rotates in the direction of arrow E.
At this time, the rotary drum 10 is rotated while operating the remote control device 40, and the rotation is performed while the brake is applied by the gear in the gear case 19.

Due to the rotation of the rotary drum 10, the length L1 of one end 30a of the jig wire 30 wound around the rotary drum 10 becomes longer and the length L2 of the other end 30b becomes shorter. Thus, for example, the lengths L1 and L2 become equal. As a result, the luggage W is in a horizontal state, its posture is stable, and it can be moved to an appropriate position by a crane or the like.

When the load W is lifted by the hanging jig 1, the range in which the jig wire 30 of the hanging jig 1 is pulled out by the guide arm 27 and the stopper 34 is restricted, so both ends of the jig wire 30 are restricted. Part 30a,
30b will not be pulled out when it is too open. Further, when the luggage W is lifted by the hanging jig 1 and its posture is adjusted, both ends 30a and 30b of the jig wire 30 are
Are pulled by the same load, but the pulling force is canceled and does not act on the rotary drum 10, so that the weight of the load W is not directly applied to the rotary drum 10.
Only the force that changes the posture will act.

Further, when the rotary drum 10 rotates, both ends 30a and 30b of the jig wire 30 pulled out from the rotary drum 10 move in the axial direction as the rotary drum 10 rotates. Following the movement of 30, the arm base 24 and the guide arm 27
Also moves in the axial direction of the guide rail 22 via the bracket 23. At this time, the bracket 23 is smoothly moved in the axial direction of the guide rail 22 by the lubricating member 25. As a result, the rotary drum 10
During the rotation, the jig wire 30 is prevented from being entangled such as overlapping or crossing on the outer peripheral surface of the rotating drum 10.

On the other hand, when the baggage W is tilted downward to the left as shown in FIG. 7, the remote controller 40 is operated to operate the motor 20 to rotate the rotary drum 10 in the direction of the arrow in FIG. Jig wire 30
The postures of the luggage W are adjusted by changing the lengths L1 and L2 of the both end portions 30a and 30b. Note that, as for the rotating operation of the rotary drum 10, the operator operates the motor 20 while operating the remote control device 40 as described above, so that the operator needs to operate the rotary drum 1
The posture is adjusted while rotating 0 little by little and observing the state of the luggage W.

As described above, according to the hanging jig 1 of the above embodiment, the rotation of the rotating drum 10 causes the rotating drum 10 to rotate.
Both ends 30a, 3 of the jig wire 30 wound around
Since the lengths L1 and L2 of 0b can be adjusted, the posture of the luggage W is adjusted with the luggage W being hung by the hanging jig 1, that is, the luggage W being hung by the hanging jig 1. be able to. As a result, the work of lifting and lowering the luggage W many times by the crane and adjusting the sling position one by one becomes unnecessary, and the initial slinging accuracy is not required as in the past, and even when the luggage W is a heavy object. Therefore, it becomes possible to perform the cargo handling work easily and efficiently.

Further, the side plates 3, 4 of the jig body 2 are
Since the battery 7 serving as the power source of the motor 20 is provided between them, there is no need to attach a power cable or the like for operating the motor 20 to the crane, and by using the wireless remote control device 40. It is possible to prevent the crane itself and the cargo handling work site from becoming complicated such as the need for the connection cable.

Further, the hanging jig 1 is a side plate 3,
Since the hook 51 connected to the crane can be attached to and detached from the hole 39 of No. 4, the hanging jig 1 can be attached to the crane for use only when the load W is heavy. The hanging jig 1 can be easily attached to an existing crane, and the highly versatile hanging jig 1 can be obtained.

Further, the jig wire 30 wound around the rotary drum 10 has its both ends 30a and 30b guided by the guide arms 27 and the pull-out range thereof is regulated. Parts 30a, 3
It is possible to prevent 0b from opening too much. Further, since the arm base 24, the guide arm 27, and the like are movable in the longitudinal direction of the guide rail 22, the rotary drum 10
To move the jig wire 30 by rotating the guide arm 2
7 can be easily followed.

Further, the guide hole 28 of the guide arm 27
Is formed in an arcuate cross section in which the diameter of the central portion 28a in the plate thickness direction is reduced, so that the jig wire 30 is not caught in the guide hole 28, and the movement of the jig wire 30 in the guide hole 28 is prevented. It can be done well.
For these reasons, the jig wire 30 wound around the rotary drum 10 moves smoothly, the jig wire 30 is prevented from being entangled, and the posture of the luggage W can be adjusted more easily. Become.

In the above embodiment, the jig body 2
Although the case where the battery 7 as a power source is equipped in the above is described, the present invention is not limited to this.
For example, a configuration in which the battery 7 is omitted and a power cable is separately routed to operate the motor 20 is also included, and the rotation control of the motor 20 is replaced by a wired remote control device 40. A remote control device may be used.

Further, the luggage W in the above embodiment can be applied to, for example, jigs, metal molds and machine parts at ironworks, PC boards at construction sites, structural parts such as stairs, etc.
Of course, the present invention can be applied to all other forms of luggage W, objects and the like. Further, the construction cargo handling machine is not limited to an overhead crane installed indoors, and includes cranes that are used outdoors such as mobile cranes, and crane wires are chain-shaped wires and the like. Is also included.

Furthermore, in the above embodiment, the structure of the jig body, the form of the motor, the mounting position of the motor and the control panel, the number of windings of the jig wire on the rotary drum, the shape of the arm base and the guide arm, and the number of turns. The moving mechanism and the like are also examples, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0036]

As described in detail above, according to the hoisting jig of the first aspect, the motor is operated to rotate the rotary drum while the load is being hoisted through the hoisting jig. The posture of the luggage can be adjusted, and the cargo handling work such as the lifting work of the luggage can be easily performed.

According to the hanging jig of claim 2,
By equipping the jig body with the battery as the power source of the motor, it is not necessary to install a power cable for the motor, and it is possible to prevent the crane itself and the cargo handling work site from becoming complicated.

According to the hanging jig of claim 3,
By constructing the jig body so that it can be attached to and detached from the crane, the hanging jig can be attached and used only when necessary, or can be easily attached and used on existing cranes.
The versatility can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a hanging jig according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is an enlarged view of part C of FIG.

FIG. 5 is a schematic perspective view for explaining the same usage state.

FIG. 6 is an operation explanatory diagram of the same.

FIG. 7 is an explanatory diagram of another operation.

[Explanation of symbols]

 1 ・ ・ ・ ・ ・ ・ Suspension jig 2 ・ ・ ・ ・ ・ ・ ・ ・ Jig body 3, 4 ・ ・ ・ ・ Side plate 7 ・ ・ ・ ・ ・ ・ Battery 10・ ・ ・ ・ ・ ・ ・ ・ Rotating drum 10a ・ ・ ・ ・ ・ ・ Cylindrical parts 11a, 11b ・ ・ ・ Disc 19 ・ ・ ・ ・ ・ ・ Gear case 19a ・ ・ ・ ・ ・ ・ Rotating shaft 20 ・ ・・ ・ ・ ・ Motor 22 ・ ・ ・ ・ ・ ・ ・ ・ Guide rail 23 ・ ・ ・ ・ ・ ・ Bracket 24 ・ ・ ・ ・ ・ ・ Arm base 27 ・ ・ ・ ・ ・ ・ ・ ・ Guide arm 28 ... Guide hole 30 ... Jig wire 30a, 30b ... End 34 ... Stopper 36 ... Control panel 39 ・ ・ ・ ・ ・ ・ Hole W ・ ・ ・ ・ ・ ・ ・ Luggage

Claims (3)

[Claims] 1. A hanging jig connected to the lower end of a vertically movable wire for lifting a load, wherein
A motor operated by a power source, a rotary drum connected to the rotary shaft of the motor, and a jig wire wound at least once around the rotary drum are arranged and hung on both ends of the jig wire. A hanging jig, wherein the posture of the lowered load can be adjusted by operating the motor to rotate a rotating drum. 2. The hanging jig according to claim 1, wherein the power source is a battery mounted on the jig body. 3. The hanging jig according to claim 1, wherein the jig main body can be detachably connected to a lower end of the wire.