JP2527200Y2 - Universal hanging tool - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is applied to products, parts,
The present invention relates to a lifting hoist for lifting equipment, machine members, components, and the like and transporting the lift to a desired place, and more particularly to a universal hoist suitable for transporting a member that does not require human labor such as a slinging worker.

[Conventional technology]

As is well known, when transporting luggage using various cranes, usually a wire rope is hung on the luggage manually,
Then, a means of hanging the hanging part of the wire rope on the hook of the crane and lifting it is adopted, but recently the work of hanging the wire rope on and off the luggage for the purpose of saving labor and improving work efficiency and safety. The so-called slinging work
For example, Japanese Utility Model Laid-Open Publication No. 62-186880 proposes a lifting hoist that can be implemented by remote control only by a crane operator.

This lifting hoist is shown in FIG. 8, and as shown in the figure, the lifting hoist 10 is provided with a pair of ring wire ropes 12 and 13 which can be hung and removed from a crane hook 11 and a head. Mounting bracket 14
A support rod 15 which is detachably attached to the crane hook 11 via the crane hook 11, a pair of wing-shaped sliding support arms 16, 17 rotatably supported by the support rod 15, and An opening / closing guide device 22 comprising a pair of working cylinders 18 and 19 and link fittings 20 and 21 provided between the rod 15 and the airfoil sliding support arms 16 and 17, and opening and closing the working cylinders 18 and 19 And a remote control operating device (not shown) that operates freely. Then, when using the lifting hoist 10, the support arms 16, 17 are opened by operating the opening and closing guide device 22, and the ring wires 12, 13 are hung from the ends of the support arms 16, 17. The leading ends are each opened to guide freely, the ring wire ropes 12 and 13 are fitted from both ends of the suspended load 22a, and the suspended load 22a is suspended without the need for a sling operation by an operator. I was

[Problems to be solved by the invention]

The lifting equipment is a ring wire rope as described above.
Load is applied only to 12, 13 and the airfoil sliding support arm 16,
17 and the opening / closing guide device 22 do not bear a load, so that it is not necessary to use a member having a very high strength as the device, so that an economical design is possible. It is easy to change to crane hooks and easy to work, but since the shape of the ring at the end of the ring wire ropes 12 and 13 is constant, it is not possible to sling various types of members, Depending on the type of the suspended load to be conveyed, the component force of the suspended load acts inward on the sling portion of the ring wire rope, and in order to prevent the sling portion from returning inside, the ring wire rope 12, There is a problem that there is a case where humans are required to hook the 13 to the end of the suspended load.

The present invention has been made in view of such circumstances, and enables efficient transportation by slinging quickly without the need for an operator in transporting various hanging loads including long objects. The purpose is to provide a universal hanging tool.

[Means for solving the problem]

The universal hanging device according to claim 1, which meets the object, (1)
A beam in which a hanging bracket for a crane hook is provided in the center, and a pair of rope hooks are provided on both left and right sides,
Left and right support shafts provided rotatably via bearings on both sides of the beam, a pair of left and right support arms each having one end attached to the left and right support shafts, and the left and right support shafts, respectively. A pair of actuators to be driven to rotate and a tuning device for the pair of actuators, and a wire rope guide having respective base ends pivotally mounted at the front and rear of the pair of left and right support arms so as to open and close in the front and rear direction. An arm, an expansion / contraction means having an air cylinder attached to the pair of left and right support arms and driving the front and rear wire rope guide arms to open and close symmetrically via a link member;
On the outer sides of both sides of the left and right support shafts, opposite to the mounting direction of the support arm, a balance weight attached via a balance weight device rod, and a pair of rope hooks on the left and right sides of the beam. The upper end is suspended, and has a pair of wire ropes respectively supported on the wire rope guide arms that expand and contract on the left and right. Further, the left and right support shafts are such that the respective balance weights are located below the beam. The beam is further rotated, and a hanging hook is provided below the beam.

In addition, the universal hanging device according to claim 2 is a beam in which a hanging metal fitting for a crane hook is provided in a center portion, and a pair of rope hooking portions are provided on both left and right sides, and bearings are provided on both side portions of the beam. A pair of left and right support shafts rotatably provided via a shaft, a pair of left and right support arms each having one end attached to the left and right support shafts, and a pair for rotating the left and right support shafts, respectively. An actuator and a tuning device for the paired actuator, a wire rope guide arm that is pivotally mounted at the front and rear sides of the pair of left and right support arms to open and close in the front-rear direction, An expanding / contracting guide cylinder attached to the support arm and a compression spring accommodated in the guide cylinder, the expansion member for urging the front and rear wire rope guide arms symmetrically in the opening direction via a link member. Means, a balance weight mounted via balance weight device rods on opposite sides of the left and right support shafts on the opposite side to the mounting direction of the support arm, and a pair of rope hooks on the left and right sides of the beam. A pair of wire ropes, the upper ends of which are suspended from the portion, and the pair of wire ropes are respectively supported by the wire rope guide arms that expand and contract on the left and right. The beam is rotated to the lower position, and a hanging hook is provided below the beam.

The universal hanging device according to claim 3 is the universal hanging device according to claim 1 or 2, wherein at the lower end of the wire rope, an end contact wire for hanging an end of a suspended load in a length direction or An end abutment chain is provided.

[Action]

The universal hanging device according to claim 1, the crane hook hanging device is provided at the top of the beam, the rope hooking portions are provided on both sides, and support arms that rotate left and right are provided, and the respective support arms are provided with air cylinders. Since it has a wire rope guide arm that expands and contracts, the distance between the left and right wires is increased according to the length of the suspended load, and the wire is further adapted to correspond to both ends of the suspended load or the suspension fittings provided on the suspended load. The rope can be expanded.

The left and right support arms are provided with actuators for driving the support arms, and the support arms are provided with tuning devices for simultaneously rotating the support arms. Even if actuators driven by different air are connected, for example, the actuator can be controlled simultaneously by one valve, and the left and right support arms can be operated by a single actuator.

In this case, the easiest way to use the universal hanging device is to expand the cushioning air cylinder to the maximum and let the wire pass under the suspended load, or place the wire under the hanging bracket provided on the suspended load. And lift the crane as it is, a load is applied as the suspended load is lifted, and the rod is pushed into the air cylinder, so the width between the wire rope guide arms automatically stabilizes the suspended load. It can be sandwiched to a width that can be lowered and moved to a predetermined position as it is.

In addition, since the expansion and contraction of the wire rope guide arm is performed symmetrically around the center line between the arms by the expansion and contraction means having an air cylinder and a link member arranged between the wire rope guide arms, the suspension of the suspended load Always,
It can be stably suspended just below the beam.

In particular, since the air cylinder is used as the expanding / contracting means, the wire rope guide arm can be stopped at an arbitrary position, whereby the wire rope can be expanded to a width corresponding to the suspended load, and slinging work can be performed even in a narrow place.

In addition, since the support shaft is provided with a balance weight via the balance weight device rod, the load on the support arm, the wire rope guide arm, and the like can be canceled, thereby making the rotation of the support arm extremely easy. , And the support arm can be easily flipped up.

The left and right support shafts rotate until the respective balance weights are positioned below the beam, and the balance weight device rod is sufficiently shorter than the support arm, and a hanging hook is provided below the beam. Since the support arms are provided, the load disposed at the lower portion can be suspended by using the hanging hooks attached to the lower portion of the beam in a state where the actuator is driven and the support arm is flipped up. . Therefore, even when the universal hanging tool is not used, it is possible to carry out the suspended load work without the necessity of removal.

In the universal hanging device according to the second aspect, a spring-type driving unit using a compression spring that urges the wire rope guide arm in the opening direction is provided instead of the air cylinder. For simplicity, when the load is lifted and the crane is hoisted, the weight of the load causes the wire rope guide arm to close to a predetermined position, and other functions are the same as those of the universal hanging device according to the first aspect.

Further, in the universal hanging device according to the third aspect, since the end contact wire or the chain that is hung in the length direction of the suspended load is provided, the portion of the wire or the chain that contacts the suspended load is inward of the wire or the chain. Can be prevented from moving, and the other actions are the same as those of the corresponding universal hanging device according to claim 1 or 2.

〔Example〕

Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.

Here, FIG. 1 is a front view of the universal hanging device according to the first embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. Sectional view of the fourth
FIG. 5 is a cross-sectional view taken along the line BB in FIG. 1, FIG. 5 is a partial cross-sectional view around a support arm of the universal hanging device on which a wire rope guide arm is attached, and FIG. 6 is a second embodiment of the present invention. FIG. 7 is a side sectional view of the universal hanging device according to the example, and FIG. 7 is a front view of the universal hanging device according to the third embodiment of the present invention.

As shown in FIGS. 1 to 5, a universal suspending device 23 according to the first embodiment comprises a beam 24 having a crane hook suspending device provided at a central portion thereof, and rotatably mounted on both sides of the beam 24. Attached support arms 25, 26, actuators 27, 28 for driving the support arms 25, 26, and the support arms 25, 26
Rope guide arms 29, 30 attached to the tip of
Air cylinders 31 and 32 for driving the wire rope guide arms 29 and 30, respectively; a tuning device 33 disposed inside the beam 24; and a rope hook portion 34 formed on both sides of the beam 24. , 34a, 35, and 35a, respectively.
Hereinafter, these will be described in detail.

The beam 24 has an iron plate structure, and a crane hook hanging bracket 39 for hanging a crane hook 38 is provided at the center upper part. As shown in FIG. 28 are provided, and support shafts 40 and 41 are rotatably mounted on the left and right via bearings 42 to 45.

At both ends of the support shafts 40, 41, rope hooks 34, 34a, 35, 3 in which grooves for wire ropes 36, 37 to be hooked are formed.
5a is attached, and the support arms 25, 26
And sprockets 46 and 47 are fixed.

On the other hand, meshing gears 48, 49 and sprockets 50, 51 are attached to the output shafts of the actuators 27, 28. The gears 48, 49 constitute a tuning device 33, and the sprockets 50, 51 are provided on the way. The sprockets 47, 46 are connected to the sprockets 47, 46 by chains 54, 55 via tensioning sprockets 52, 53, and the left and right support arms 25, 26 are rotated synchronously by the operation of the actuators 27, 28. Has become.

A pair of wire rope guide arms 29 and 30 are rotatably provided on both lower sides of the left and right support arms 25 and 26, and the paired wire rope guide arms 29 and 30 are provided as shown in FIGS. An intermediate portion of the rope guide arm 30 (same for 29) is provided with a mounting bracket 56a rotatably mounted on a shaft end of an air cylinder 32 housed in the support arm 26 and a link mounted via a pin 57a. The members 56 and 57 are attached, and the expansion and contraction of the air cylinder 32 causes the wire rope guide arm 30 to expand and contract. The pin 57a moves in the guide groove, and the air cylinder 3
No excessive force is applied to the rod of 2,
The expanding / contracting means of the wire rope guide arms 29, 30 is composed of the components 56, 56a, 57, 57a.

The paired wire rope guide arm 30 (same for 29)
The wire rope 37 (36) as shown in FIG.
Grooves 58, 59 into which the wire ropes 37 are fitted, respectively, and a guide ring of the wire rope 37 is provided at a slightly upper portion thereof.
60 and 61 are provided respectively.

On the other hand, at both ends of the support shafts 40 and 41, the support arms 2 are provided.
Balance weights 67, 68 consisting of a plurality of plate-like objects corresponding to the weights of 5, 26 and wire rope guide arms 29, 30
Is provided to balance the rotational weight of the support shaft and reduce the load on the actuators 27 and 28. The balance weights 67 and 68 are, as shown in FIG.
, And is screwed to a balance weight mounting rod 67a whose base end is further bent at a right angle.

The operating force of the actuators 27 and 28 and the pressing force of the air cylinders 31 and 32 are appropriately selected to be small.
When the suspended load 62 is suspended at the lower ends of the wire ropes 36 and 37, the support arms 25 and 26 and the wire rope guide arm
The wire ropes 36, 37 are moved so that the wire ropes 36, 37 can maintain a natural suspension state with the rope hooking portions 34, 34a, 35, 35a as base ends.

And the control of the actuators 27 and 28 and the air cylinders 31 and 32 is performed by turning on and off an air valve (not shown).
The support arms 25, 26 can be freely opened and closed, and the wire rope guide arms 29, 30 can be freely expanded and contracted. In addition,
In the figure, the air hoses connected to the actuators 27 and 28 and the air cylinders 31 and 32 other than the hose 69 are omitted.

Therefore, when using the universal suspending device 23, first, the hook 38 of the predetermined crane is attached to the crane hook mounting bracket.
The whole is suspended under the crane hook by hanging on 39, moved to the position immediately above where the suspended load 62 to be transported is placed, and the air valves are operated to operate the actuators 27 and 28.
The support arms 25 and 26 driven by the rotation are rotated to a predetermined position (in FIG. 1, a suspended state). In this case, since the tuning devices 33 are provided on the actuators 27 and 28, the support arms 25 and 26 are opened symmetrically.

Next, when the air cylinders 31 and 32 are extended, the components 56, 56a, 57 and 57a of the expansion / contraction means allow the wire rope guide arms 29 and 30 to have the same width at the same time around the center line between the arms 29 and 30. Since the arms are forcibly spread, even if one side of each of the arms 29 and 30 becomes difficult to rotate due to rust or the like, the suspended position of the suspended load is always directly below the beam 24. As a result, stable hanging movement of the suspended load becomes possible.

In this way, after the wire ropes 36 and 37 are respectively spread to a predetermined angle, the wire ropes 36 and 37 for hanging are attached to the end of the suspended load 62 or the lower part of the suspension fitting provided on the suspended load.
Position. When the crane is hoisted in this state, the guide arms 29 and 30 also try to close due to the load of the suspended load.
In this case, even if the angles of the support arms 25 and 26 deviate from the load direction, if air is used for the working fluid of the actuators 27 and 28 and the air cylinders 31 and 32, a separate mechanical cushion mechanism can be provided. There is no need to provide, and the load of the suspended load is borne by the wire as tension, and no tension is applied to the support arms 25, 26 and the guide arms 29, 30. A member having a small sectional performance can be used.

In the case where the suspended load is a long object, hook chains 65 and 66 are used as shown in FIG. This hanging chain 6
5 and 66 (see Fig. 6) are end contact chains 6 at the center.
3 and 64 are provided respectively. Therefore, support arm 2
The fifth and 26 and the guide arms 29 and 30 are opened at appropriate positions so that the hanging chains 65 and 66 fit into both ends of the suspended load 62a. When the crane is hoisted in that state, the support arm
25 and 26 are slightly closed in the vertical direction to a width that allows the suspended load to be stably suspended by the load of the suspended load. However, when the end contact chain 63,
Since the lock chain 64 is provided, the hanging chains 65 and 66 hold the suspended load without further shifting inward. Further, the guide arms 29 and 30 also try to close due to the load of the suspended load. In this case, as described above, if air is used for the working fluid of the actuators 27 and 28 and the air cylinders 31 and 32,
There is no need to provide a separate mechanical cushion mechanism, and the guide arms 29 and 30 can use members with extremely small cross-sectional performance.

After the suspended load 62a has been transported to a predetermined position, the hanging chains 65 and 66 can be easily removed from the suspended load 62a by opening the support arms 25 and 26 outward.

When the universal hanging device 23 is not used, the actuators 27 and 28 are operated to rotate the support arms 25 and 26 to the diagonally upper direction as shown by the two-dot chain line in FIG.
By using the hanging hook 70 attached to the lower center of the 24 via a pin 71, a function of performing a single point hanging as a normal hanging crane is also provided. It goes without saying that a plurality of hooks attached to the lower part of the beam 24 may be provided.

In the above embodiment, the wire rope guide arm 29,
Although the opening and closing of 30 was performed by the air cylinders 31 and 32, as shown in FIG. 6, it is also possible to employ an expanding means for constantly biasing the wire rope guide arms 29 and 30 in the opening direction by a spring (compression spring) 72. I can do it. Here, 73 and 74 indicate sliding guide cylinders, and 75 indicates a link mechanism.

In the above-described embodiment, a roll-like material of a suspended load is used. However, the present invention can be applied to a slab, a plate, a box provided with a hanging metal, a steel material, or the like.

[Effect of the invention]

The universal hanging device according to any one of claims 1 to 3, can open and close the wire rope attached to the rope hooks on both sides, and can expand and contract in a direction perpendicular to the direction. Can suspend the suspended load by remote control, and can safely and quickly work without requiring sling work as in the related art.

In addition, since a tuning device is provided for the left and right support arms that open and close the wire rope, control means such as valves can be simplified, and only one support arm operates to balance the entire system. You won't lose or be upset.

The opening angle can be adjusted by an air cylinder or a compression spring that expands and contracts the wire rope guide arm. The width between the arms can be reduced to a width at which the suspended load can be stably suspended.

Furthermore, since the support shaft is provided with a balance weight that balances the loads of the support arm and the wire rope guide arm, the support shaft can be rotated without difficulty, thereby making it possible to reduce the size of the actuator. Even if the support arm is stopped at the position, the load on the actuator is reduced.

In particular, in the universal hanging device according to the first aspect, since the air cylinder is used for the expansion and contraction means of the left and right wire rope guide arms, the wire rope guide arm can be stopped arbitrarily. Universal hanging equipment can be used. Since this expanding / contracting means is arranged between the wire rope guide arms and is forcibly performed simultaneously with the same width via the link member centering on the center line between the arms, the movement of one arm is dull due to rust or the like. Even so, the suspended position of the suspended load can always be stably moved immediately below the beam by the forcible force of the expansion / contraction means.

And since the hanging hook is provided at the center of the beam, even when the universal hanging tool is not used,
By lifting the support arm horizontally or upward, normal crane operations can be performed without removing the device. In this case, since the balance weight device rod is shorter than the support arm, there is an advantage that even if the support arm is flipped up and the balance weight is lowered below the beam position, it does not become an obstacle.

In particular, since the universal hanging device according to the second aspect does not use an air cylinder to expand and contract the wire rope guide arm, the structure is simplified.

In the universal hanging device according to the third aspect of the present invention, since the end contact chain or the wire that comes into contact with the suspended load is provided, the wire or the chain hooked on the suspended load is safely transported without shifting. be able to.

[Brief description of the drawings]

FIG. 1 is a front view of a universal hanging device according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. FIG. 4, FIG. 4 is a cross-sectional view taken along the line BB in FIG. 1, FIG. 5 is a partial cross-sectional view of a support arm on which the wire rope guide arm is mounted in the universal hanging device, and FIG. FIG. 7 is a side sectional view of a universal hanging device according to a second embodiment, FIG. 7 is a front view of a universal hanging device according to a third embodiment of the present invention, and FIG. 8 is a front view of a conventional hanging device. is there. [Description of Signs] 23 ... Universal hanging device, 24 ... Beam, 25, 26 ... Support arm, 27, 28 ... Actuator, 29, 30 ... Wire rope guide arm, 31, 32 ... Air cylinder, 33… Tuning device, 34, 34a, 35, 35a… Rope hook, 36, 37…
… Wire rope, 38 …… Crane hook, 39 …… Crane hook mounting bracket, 40, 41 …… Support shaft, 42-45 ……
Bearings, 46, 47 ... Sprockets, 48, 49 ... Gears, 50-53 ... Sprockets, 54, 55 ... Chains, 5
6, 57 link member, 58, 59 groove, 60, 61 guide rod, 62, 62a hanging load, 63, 64 end contact chain, 65, 66 hooking chain , 67a ... balance weight device rod, 67, 68 ... balance weight, 69 ... hose, 70 ... hanging hook, 71 ... pin, 72 ... spring, 73, 74 ... guide cylinder, 75 ... Link mechanism

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-63-189386 (JP, A) JP-A-54-105469 (JP, U) JP-A-61-119578 (JP, U)

Claims (3)

(57) [Scope of request for utility model registration] 1. A beam provided with a hanging bracket for a crane hook at a central portion, and a pair of rope hooking portions provided on both left and right sides, and rotatable via bearings on both sides of the beam. Left and right support shafts provided, a pair of left and right support arms each having one end attached to the left and right support shafts, a pair of actuators for rotating and driving the left and right support shafts, and an actuator for the pair A wire rope guide arm whose base ends are pivotally mounted on the front and rear sides of the pair of left and right support arms so as to open and close in the front and rear direction, and air attached to the pair of left and right support arms. Expanding / contracting means having a cylinder and symmetrically driving the front and rear wire rope guide arms via link members, and mounting directions of the support arms on both outer sides of the left and right support shafts On the opposite side, a balance weight attached via a balance weight mounting rod, and a pair of rope hooks on both left and right sides of the beam, the upper ends of which are suspended, and the wire rope guide arms which expand and contract on the left and right, respectively. Having a pair of supported wire ropes,
Further, the left and right support shafts rotate until the respective balance weights are positioned below the beam, and a hanging hook is provided below the beam. . 2. A beam having a hook for hanging a crane hook at a central portion thereof and a pair of rope hooks provided on both left and right sides thereof, and a beam rotatably provided on both sides of the beam via bearings. Left and right support shafts provided, a pair of left and right support arms each having one end attached to the left and right support shafts, a pair of actuators for rotating and driving the left and right support shafts, and an actuator for the pair A wire rope guide arm whose base ends are rotatably mounted on the front and rear sides of the pair of left and right support arms so as to open and close in the front-rear direction, and a telescopic unit attached to the pair of left and right support arms. An enlarging means having a guide cylinder to be moved, a compression spring housed in the guide cylinder, and urging the front and rear wire rope guide arms symmetrically in the opening direction via a link member; A balance weight attached via a balance weight attachment rod and an upper end thereof are suspended from a pair of rope hooks on both right and left sides of the beam, on opposite sides of the shaft on opposite sides to the mounting direction of the support arm. A pair of wire ropes respectively supported by the wire rope guide arms that expand and contract on the left and right, and the left and right support shafts rotate until the respective balance weights are positioned below the beam. And a hanging hook is provided below the beam. 3. The universal suspension according to claim 1, wherein an end contact wire or an end contact chain is provided at a lower end of the wire rope for hanging an end of the suspended load in a longitudinal direction. Utensils.