JPH0826657A - Hang-up device - Google Patents

Abstract

PURPOSE:To enable various kinds of cargoes to be hanged up, and thereby enhance working efficiency at a loading work site. CONSTITUTION:A hang-up mechanism 3 is provided, which is composed of paired arms 6 and 7 disposed at the opposite positions of a hang-up device main body 2. Each locking mechanism 51 is provided for the respective arms 6 and 7, which makes a locking piece 53 appear/disappear mutually in the opposite directions. A sling 14 is housed in one arm 6. Each moving mechanism 17 is provided for the respective arms 6 and 7, which holds and moves the sling 14. A sling locking mechanism 26 is provided for one arm 6, which locks the rear end section of the sling 14. A sling lock mechanism 33 is provided for the other arm 7, which holds the tip end section of the sling 14 forwarded out of the lower end section by each moving mechanism 17. The respective arms 6 and 7 are connected to the hang-up device main body 2 via each parallel link mechanism 8 which supports the arms in such a manner that the arms can be moved in parallel to the direction normal to the opposite direction, and are also connected thereto in such a manner that they can be rotated in the direction perpendicularly intersected with the opposite direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting device used during cargo handling work in a harbor, a warehouse or the like.

[0002]

2. Description of the Related Art Conventionally, hoisting devices have been used for hoisting loads in ports, warehouses and the like. As the lifting device, for example, the arms arranged at opposite positions are respectively provided with claw portions, and the claw portions are locked to the lower surface side of the luggage (in the case of roll-shaped luggage, both end surfaces of the luggage are There is a type of lifting method in which the claw is locked to the through hole in the center).

[0003]

By the way, when the load to be lifted is a flexible one such as sheets, the claw portion of the lifting device is not reliably locked to the lower surface side of the load, and therefore, securely and safely. It was difficult to lift.
Here, in addition to the lifting device that locks the luggage with the above-mentioned claw portion, for example, there is also a lifting device of the type in which a no-back bend chain, a nylon sling, etc. are hung on the lower surface side of the luggage and lifted. According to the device, even if the load has flexibility, it can be reliably lifted.

However, since the hoisting device using these claws or slings is dedicated to each type of luggage, the hoisting device must be replaced according to the hoisting luggage at a cargo handling work site handling various kinds of luggage. In addition, the replacement work requires a lot of labor and time. Further, in the above-described lifting device that locks and lifts the load by the claw portion, there is a problem in that the roll-shaped loads can be lifted only one by one, and the work is prolonged. Here, in order to lift two roll-shaped loads at the same time, a pair of paired arms, a lifting device provided with two vertical sets with intervals, has been developed, but the lifting device itself becomes large,
It was unsuitable for small cargo handling work sites such as warehouses.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a hoisting device capable of hoisting various loads very easily.

[0006]

In order to achieve the above-mentioned object, the hoisting device according to claim 1 is a lower side of a hoisting device main body, in which an engaging portion for engaging a hook of a crane or the like is provided on an upper portion. In the lifting device, there are provided two sets of lifting mechanisms, each of which is composed of a pair of arms arranged at mutually opposing positions. The lifting mechanism is rotatably connected to the hoisting device main body in a direction orthogonal to the facing direction, and the hoisting mechanism is provided on each arm, and locking pieces for locking luggage are opposed to each other. Locking means to appear and disappear,
The sling housed in one arm is sent to the other arm through the lower side of the luggage, and the hanging means is provided to bridge between the respective arms. Lifting of the luggage by the locking piece and lifting of the luggage by the sling are provided. The feature is that it is also used.

According to a second aspect of the present invention, there is provided the hoisting device of the first aspect, wherein the hoisting means comprises:
A transfer mechanism that sends out the sling from one arm,
A sling locking mechanism that locks the rear end of the sling sent out by the transfer mechanism by one arm, and a sling lock mechanism that holds the tip end of the sling sent by the transfer mechanism by the other arm. It is characterized by comprising.

Further, the hoisting device according to claim 3 is
The lifting device according to claim 1 or 2,
It is characterized in that the pair of arms constituting the hoisting mechanism are connected to the hoisting device main body via a parallel link mechanism that supports the arms vertically and in parallel so as to be movable in parallel.

Further, the hoisting device according to claim 4 is the hoisting device according to any one of claims 1 to 3, wherein the engaging portion pivots on the hoisting device body in a horizontal plane. The hoisting device main body is provided so as to be capable of being provided with a turning motor for relatively rotating the hoisting device main body and the locking portion.

[0010]

According to the hoisting device of the first aspect of the present invention, the luggage is hoisted by projecting the engaging piece by the engaging means to engage the bottom of the luggage and pulling the hoisting device upward. Here, for example, when a flexible sheet-like luggage is to be lifted, the sling is hung between the arms of the hoisting mechanism by the hoisting means and the hoisting device is hoisted upward so that the luggage is sled. It is supported and lifted by.

When a single roll-shaped load is to be lifted, the locking pieces are projected by the locking means in a state where the arms of the respective lifting mechanisms are rotated and brought close to each other, and The luggage is locked by the locking piece and lifted by being locked by the through hole and being lifted. When hoisting two roll-shaped loads, each arm of each hoisting mechanism is rotated to separate from each other, and each arm is placed at each end face position of the two loads, and the locking means is provided. The respective locking pieces are projected by, and are locked by the through holes at the central portions of the respective loads and lifted, whereby the respective loads are locked by the locking pieces and lifted.

Further, according to the hoisting device of the second aspect, when the transfer mechanism of the hoisting means is driven, the sling housed in one arm is sent under the load and is sent out in the direction of the other arm. . Then, the rear end of the sling is locked by the sling locking mechanism of one arm, and the tip of the sling is held by the sling lock mechanism of the other arm, so that the luggage can be suspended by the sling. .

Further, according to the hoisting device of the third aspect, since the opposing arms of the hoisting mechanism can be moved in parallel by the parallel links, the interval between the respective arms is adjusted according to the width of the load. It becomes possible. According to the hoisting device of claim 4,
When the turning motor is driven, the locking portion and the lifting device body are relatively rotated, and the direction of the lifting device body is adjusted.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the lifting device of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 is a lifting device. The hoisting device 1 is roughly composed of a hoisting device body 2 and two sets of hoisting mechanisms 3 and 3 provided on the lower side of the hoisting device body 2. An upper portion of the lifting device body 2 is provided with a locking portion 4 on which a hook such as a crane is locked so that the lifting device body 2 and the locking portion 4 are relatively moved by a turning motor 5. It is designed to be rotated.

The hoisting mechanisms 3 and 3 on the lower side of the hoisting device main body 2 are provided between a pair of arms 6 and 7 arranged at mutually opposing positions, and between the arms 6 and 7 and the hoisting device main body 2. The parallel link mechanisms 8 and 8 are roughly configured. The parallel link mechanisms 8 and 8 have links 11a and 1 which are connected to the lifting device body 2 at one end and are connected to the arms 6 and 7 at the other end and are arranged in parallel with each other.
It is composed of 1b.

One end of each of the links 11a and 11b is connected to the hoisting device main body 2 so as to be rotatable in the front-rear direction and the left-right direction, and the other end thereof is connected to the arms 6 and 7 in the left-right direction. Direction, that is, the arms 6 and 7 are rotatably connected to each other. Further, the cylinder 1 is provided between the lifting device body 2 and the link 11a and between the lifting device body 2 and the upper ends of the arms 6 and 7, respectively.
2 and 13 are provided.

When the cylinder 12 expands and contracts, the links 11a and 11b rotate about the connecting points with the hoisting device main body 2 and the arms 6 and 7 rotate, thereby connecting to the links 11a and 11b. The arms 6 and 7 are moved vertically and parallel to each other. Further, when the cylinder 13 is driven, the links 11a and 11b respectively move to the arms 6 and 7.
Is rotated and swung in a direction orthogonal to the facing direction.

A sling (suspension means) 14 is provided on one arm 6 of the arms 6 and 7. As shown in FIG. 3, the sling 14 is formed by integrally molding a pair of chains 15 and 15 arranged in parallel with each other with a flexible material such as resin. , 15 are connected by a connecting member 16. In addition, a locking hole 32 that is locked by a sling locking mechanism 26 described later is provided at the rear end of the sling 14.
Are formed.

The sling 14 is housed in a state of being wound by a winding roller 16 provided on the upper part of one arm 6, and is transferred by a transfer mechanism (hanging means) 17 provided on the arm 6. The arm 6 is fed out from the lower end. The transfer mechanism 17 is also provided in the other arm 7.

As shown in FIGS. 4 and 5, the transfer mechanism 17
Is a drive motor 18 provided above the arm 6
., Which are rotatably supported in pairs at opposite positions along the longitudinal direction of the pinch rollers. Rotation shaft of drive motor 18 and pinch roller 2
At both ends of 1, 21, ... Sprocket 22,
22 ... are provided, and these sprockets 22, 2 are provided.
The rotational force of the drive motor 18 is changed by the chain 23, 23 ...
21 are sequentially transmitted from above, and the pinch rollers 21a and 21b arranged at opposite positions are rotated in opposite directions, and the sling 14 that is sandwiched between the pinch rollers 21a and 21b moves. It is supposed to be done.

At the lower end of the arm 6, a guide 24,
25 is provided, and a passage 20 through which the sling 14 passes is formed between the guides 24, 25. The passages 20 are bent in directions facing each other. The guides 25 are rotatably supported, and the intervals of the passages 20 can be adjusted by rotating the guides 25.

In the vicinity of the lower end of one arm 6,
A sling locking mechanism (suspension means) 26 that locks the rear end of the sling 14 is provided. As shown in FIG. 6, the sling locking mechanism 26 includes a cylinder 27, a link 29 that is rotated about a fulcrum 28 by the expansion and contraction of the cylinder 27, and a locking pin 31 connected to the link 29. When the cylinder 27 extends, the link 29 moves the locking pin 31 toward the sling 14 and inserts it into the locking hole 32 formed at the rear end of the sling 14. It has become. That is, the locking pin 31 is used for the locking hole 3 of the sling 14.
By engaging with 2, the rear end of the sling 14 is locked in the arm 6.

A proximity sensor 30 is provided near the lower end of the arm 6, and the proximity sensor 30 detects the rear end of the sling 14 sent out and outputs a detection signal thereof. Has become. When a detection signal is output from the proximity sensor 30, the sling locking mechanism 26 is activated and the rear end of the sling 14 is locked.

The detection signal from the proximity sensor 30 is also output to the transfer mechanism 17 of the one arm 6.
The operation of the transfer mechanism 17 is stopped when the detection signal is input from the proximity sensor. Also, the other arm 7 has guides 24, 2 at its lower end portion.
5 is provided, and the tip of the sling 14 sent by the transfer mechanism 17 from one arm 6 is fed into the passage 20 between these guides 24, 25.

The sling 14 sent to the lower end of the arm 7 has guides 24 and 25 at its tip.
Is guided above the arm 7 and is pulled up while being pinched by the pinch rollers 21, 21 ... Of the transfer mechanism 17 provided on the arm 7.

The arm 7 is provided with a sling lock mechanism (suspension means) 33 near the lower end thereof.
As shown in FIGS. 7 to 10, the sling lock mechanism 33 includes a case body 34 formed in a rectangular tube shape, and a rectangular inner cylinder provided in the case body 34 so as to be vertically slidable. 35, a pair of sandwiching members 36, 36 movably provided in the inner cylinder 35 in the approaching and separating directions, and cylinders provided on both sides of the case body 34 for sliding the inner cylinder 35 in the vertical direction. 37, 37.

The sandwiching members 36, 36 are formed such that the facing surfaces thereof have an uneven shape opposite to the sling 14, and the sling 14 is fitted into the unevenness formed on the facing surfaces of the sandwiching members 36, 36. It is supposed to meet. These holding members 36, 36 have guide rollers 3 on both sides thereof.
A pair of upper and lower guide rollers 38, 38, ... Are arranged in guide grooves 39, 39.

The guide grooves 39, 39 ... Of the inner cylinder 35 are formed obliquely in the direction in which they are gradually separated upward, and when the inner cylinder 35 is slid up and down by the cylinders 37, 37, The guide rollers 38, 38 ...
.. are moved in the approaching / separating direction by the guides 9, 39 ..., By this, the holding members 36, 36 are also moved in the approaching / separating direction. Then, the holding members 36, 36
As the slings 14 are moved in the direction in which they approach each other, as shown in FIGS. 9 and 10, the unevenness of the sling 14 disposed between the sandwiching members 36, 36 becomes the unevenness of the sandwiching members 36, 36. The sandwiching members 36, 36 in the fitted state
Is clamped and held by the clamping members 36, 3
6 are moved in the directions away from each other,
1 and FIG. 12, these holding members 36, 36
The holding of the sling 14 by the is released.

The other arm 7 has an intermediate portion,
A sling detection mechanism 41 is provided. As shown in FIGS. 13 and 14, the sling detection mechanism 41 includes a bracket 42 fixed to the arm 7 and a bracket 42.
2, a sliding rod 43 slidably supported with respect to the sling 14 in the approaching and separating direction, a pressing roller 44 rotatably supported at the tip of the sliding rod 43, and the sliding rod 43.
Tension spring 4 for urging the pressing roller 44 toward the sling 14 to urge the pressing roller 44 toward the sling 14.
5 and photosensors 47, 47 attached to the holes 46, 46 formed so as to face both sides of the bracket 42, respectively.

A detection hole 48 is formed in the sliding rod 43, and when the pressing roller 44 of the sliding rod 43 enters the recess of the chain 15 forming the sling 14, the photo sensor 47 is formed. , 4 with holes 47 attached
6, 46 and the detection hole 48 communicate with each other.
When the detection hole 48 communicates with the hole portions 46, 46 of the photo sensors 47, 47, the photo sensors 47,
A detection signal is output from 47 to the sling lock mechanism 33, the sling lock mechanism 33 is operated, and the sling 14 is held.

Locking mechanisms (locking means) 51, 5 are provided on the respective arms 6, 7 on the inner side in the vicinity of the lower ends thereof.
1 is provided. As shown in FIG. 15, these locking mechanisms 51, 51 have a locking piece 53 rotatably supported about a rotating shaft 52 provided in the horizontal direction, and an arm that connects the locking piece 53. The storage positions in 6, 7 and the arm 6,
7 and a cylinder 54 that is moved between the locking position and the locking position in a state of being horizontally projected from 7 in the opposite direction.

That is, by extending and contracting the cylinder 54, the locking piece 53 is rotated about the rotation shaft 52, and this locking piece 53 is retracted from the arms 6 and 7. ing. In addition, the cylinders 12, 13, 27, 37, 54 of the respective mechanisms of the lifting device 1 having the above configuration.
Are driven by hydraulic devices (not shown) provided in the lifting device body 2.

Next, a cargo handling work by the hoisting device 1 having the above structure will be described. (A) When lifting a load normally (see FIG. 16) (1) First, the cylinder 12 is expanded and contracted to lift the lifting mechanism 3
The interval between the arms 6 and 7 is slightly larger than the width dimension of the load N1. (2) In this state, the hoisting motor 5 rotates the hoisting device main body 2 to lower the hoisting device 3 while adjusting the direction of each hoisting mechanism 3, and lower the lower ends of the arms 6 and 7 to the load N.
Position on both sides of 1.

(3) Next, the locking mechanism 51 of each arm 6, 7 is operated. That is, these locking mechanisms 51
The respective cylinders 54 are extended to rotate the locking pieces 53, the locking pieces 53 of these locking mechanisms 51 are projected horizontally inward, and the locking pieces 53 of these locking mechanisms 51 are locked. , It enters into the gap formed below the luggage N1. The luggage N1 is placed on a pedestal (not shown). (4) In this state, the lifting device 1 is lifted by the crane.
When is pulled up, the locking piece 53 of the locking mechanism 51 locks the bottom portion of the load N1, and the load N1 locked by these locking pieces 53 is lifted upward.

When the lifting state of the load N1 by the lifting device 1 is released and the load N1 is unloaded, the lifting device 1 is lowered and the load N1 is set on the ground via a pedestal (not shown) and locked. The locking piece 53 is rotated by contracting the cylinder 54 of the mechanism 51, and the locking piece 53 is housed in each of the arms 6 and 7. In this state, only the lifting device 1 is pulled up. .

(B) When lifting a flexible sheet-like load (see FIG. 17) (1) First, the cylinder 12 is expanded and contracted to lift the lifting mechanism 3
The interval between the arms 6 and 7 is slightly larger than the width dimension of the luggage N2. (2) In this state, the hoisting motor 5 rotates the hoisting device main body 2 to lower the hoisting device 3 while adjusting the direction of each hoisting mechanism 3, and lower the lower ends of the arms 6 and 7 to the load N.
Position on both sides of 2.

(3) Next, the drive motor 18 of the transfer mechanism 17 of the one arm 6 is driven to drive the pinch roller 21.
By rotating a and 21b, the pinch rollers 21a and 2b
Sling 1 housed in arm 6 by 1b
4 is sent out from the lower end of the arm 6. By doing so, the sling 14 is sent out while being guided in the direction of the other arm 7 by the passage 20 between the guides 24 and 25 provided at the lower end of the arm 6, and the load N
2 passes through a gap below and reaches the lower end of the arm 7, and guides 24, 2 provided at the lower end of the arm 7
It is sent to the passage 20 between 5 and further these guides 2
It is guided upward by 4 and 25 and pulled up by the transfer mechanism 17 of the arm 7.

(4) After that, when the rear end of the sling 14 sent out by the transfer mechanism 17 of the one arm 6 is detected by the proximity sensor 30 and a detection signal is output, the transfer mechanism 17 is stopped and the sling is stopped. When the feeding operation of 14 is stopped and the sling locking mechanism 26 is operated, the locking pin 31 of this sling locking mechanism 26 is inserted into the locking hole 32 formed at the rear end of the sling 14, and the sling is locked. The rear end of 14 is locked.

(5) Further, in the other arm 7, when the sling 14 fed in reaches the sling detecting mechanism 41, the pressing roller 44 of the sling detecting mechanism 41 abuts on the sling 14, and the chain 15 of the sling 14 moves. The sliding bar 43 is pressed outward by the convex portion against the biasing force of the tension spring 45, the sling 14 is pulled up by the transfer mechanism 17, and the pressing roller 44 enters the recess of the chain 15 of the sling 14. Then, the sliding rod 43 is slid in the sling 14 direction by the urging force of the tension spring 45, and the detection hole 48 formed in the sliding rod 43 communicates with the hole portion 46 in which the photo sensor 47 is provided. Thus, the detection signal is output from the photo sensor 47.

(6) When a detection signal is output from the photo sensor 47, the transfer means 17 of the arm 7 is stopped, the pulling operation of the sling 14 is stopped, and the sling lock mechanism 33 is operated. That is, the cylinder 37 of the sling lock mechanism 33 expands to move the inner cylinder 35 upward, whereby the guide groove 38 formed in the inner cylinder 35 guides the guide rollers 38 of the holding member 36 close to each other. The holding members 36 are moved in a direction in which the holding members 36 approach each other. As a result, the sandwiching members 36 sandwich and hold the sling 14 between the sandwiching members 36 in a state in which the unevenness of the surface fits into the unevenness of the sandwiching members 36.

(7) In this state, when the hoisting device 1 is pulled up by the crane, the luggage N2 is hoisted together with the hoisting device 1 by the sling 14.

When the lifting state of the load N2 by the lifting device 1 is released and the load N2 is lowered, the sling lock mechanism 33 and the sling lock mechanism 33 are installed while the load N2 is installed on the ground together with the lifting device 1. The holding and locking of the sling 14 by the sling locking mechanism 26 is released, and the transfer mechanisms 17 of the arms 6 and 7 are reversed. In this way, the sling 14 will move to the other arm 7
From the rear end portion side while being sent out from the rear end portion side,
It is stored in a state in which it is wound around, and in this state, only the lifting device 1 can be pulled up.

(C) In the case of hoisting roll-shaped loads each having a through hole in the central part one by one (see FIGS. 18 and 19) (1) First, the cylinder 12 is expanded and contracted to lift the hoisting mechanism 3
The interval between the arms 6 and 7 is slightly larger than the length of the luggage N3. (2) Further, by contracting the cylinder 13 and rotating the respective arms 6 and 7 of the respective lifting mechanisms 3 in the direction orthogonal to the facing direction, the lower ends of the respective arms 6 and 7 are compared. Close to each other.

(3) In this state, the hoisting motor 5 rotates the hoisting device main body 2 to lower it while adjusting the direction of each hoisting mechanism 3, and lower ends of the arms 6 and 7 to both ends of the load N3. Located in. (4) Next, the locking mechanism 51 of each arm 6, 7
Operate. That is, the cylinder 5 of these locking mechanisms 51
4 are respectively extended to rotate the locking pieces 53, and the locking pieces 53 of these locking mechanisms 51 are horizontally projected inward. In this way, these locking mechanisms 5
The locking piece 53 of No. 1 enters into the through hole K at the center of the luggage N3.

(5) In this state, when the hoisting device 1 is pulled up by the crane, the locking piece 53 of the locking mechanism 51 locks the through hole K of the baggage N3, and the locking piece 53 locks the through hole K. The stopped luggage N3 is lifted up.

When the lifting state of the load N3 by the lifting device 1 is released and the load N3 is unloaded, the cylinder of the locking mechanism 51 is lowered while the lifting device 1 is lowered and the load N3 is installed on the ground. The locking pieces 53 are rotated by contracting 54, and the locking pieces 53 are housed in the arms 6 and 7. In this state, the lifting device 1
Pull only the chisel up.

(D) When simultaneously lifting two roll-shaped loads having a through hole in the center (see FIGS. 18 and 20) (1) First, the cylinder 12 is expanded and contracted to lift the lifting mechanism 3
The intervals between the arms 6, 7 are slightly larger than the lengths of the loads N3, N3. (2) Further, by extending the cylinder 13 and rotating the respective arms 6 and 7 of the respective lifting mechanisms 3 in the direction orthogonal to the facing direction, the lower ends of the respective arms 6 and 7 are compared. Are separated from each other, and the arms 6 and 7 are separated from each other by the load N3, N3.
The distance between the through holes K is substantially the same.

(3) In this state, the hoisting motor 5 rotates the hoisting device main body 2 to lower it while adjusting the direction of each hoisting mechanism 3, and lower the lower ends of the arms 6 and 7 to the respective loads N3 and N3. Position on both ends of the. (4) Next, the locking mechanism 51 of each arm 6, 7
Operate. That is, the cylinder 5 of these locking mechanisms 51
4 are respectively extended to rotate the locking pieces 53, and the locking pieces 53 of these locking mechanisms 51 are horizontally projected inward. In this way, these locking mechanisms 5
The locking piece 53 of No. 1 is the through hole K at the center of each load N3, N3.
Get inside.

(5) In this state, when the hoisting device 1 is pulled up by the crane, the locking pieces 53 of the locking mechanism 51 lock the through holes K of the loads N3 and N3, and the locking pieces 53. The two loads N3 and N3 locked by are simultaneously lifted upward.

In addition, each load N3 by the lifting device 1,
When the lifting state of N3 is released and the loads N3 and N3 are unloaded, the lifting mechanism 1 is lowered to place the loads N3 and N3 on the ground, and the locking mechanism 51 is used.
By contracting the cylinder 54, the locking pieces 53 are rotated, the locking pieces 53 are housed in the arms 6 and 7, and in this state, only the lifting device 1 is pulled up.

Thus, the lifting device 1 of the above embodiment
According to this, by the locking mechanism 51 projecting the locking piece 53 to lock the locking piece 53 to the bottom of the load N1 and pulling it upward, the load N1 can be lifted very easily.

Here, for example, even if the load to be lifted is a flexible sheet-like load N2, the sling 1 stored in one arm 6 by driving the transfer mechanism 17 is driven.
4 is sent under the load N2 toward the other arm 7 and the rear end of this sling 14 is sling locking mechanism 2
Since the sling 14 is locked by 6 and the tip of the sling 14 is held by the sling lock mechanism 33, it is possible to extremely easily lift the load N2 by the sling 14.

When hoisting one roll-shaped load N3, the arms 6 and 7 of each hoisting mechanism 3 are to be hoisted.
Is rotated in a direction orthogonal to the facing direction so that the lower end portions of the arms 6 and the lower end portions of the arms 7 are brought close to each other, and the locking piece 53 is projected by the locking mechanism 51. The roll-shaped load N3 can be reliably lifted by being locked by the through hole K at the center of the load N3 and being lifted.

Further, when the two roll-shaped loads N3 are to be lifted, the arms 6 of the respective lifting mechanisms 3,
The lower ends of the arms 6 and the lower ends of the arms 7 are separated from each other by rotating the arms 7 in a direction orthogonal to the facing direction, and the arms 6 and 7 are respectively provided with two loads N.
In the state where they are arranged at the respective end face positions of 3 and N3,
The locking piece 53 is projected by the locking mechanism 51, locked in the through hole K at the center of each of the loads N3, N3, and lifted, whereby each roll-shaped load N3,
N3 can be easily locked by the locking piece 53 and lifted.

In this way, various kinds of luggage N1, N2, N3
Compared to the case where a dedicated lifting device is used according to the type of luggage at the cargo handling work site where
It is not necessary to replace the hoisting device depending on the type of luggage, which can save a great deal of labor and time required for the hoisting device replacement work. That is, it is possible to improve the workability of the cargo handling work and shorten the work time. Further, in the case of the roll-shaped load N3, the two loads N3 and N3 can be lifted at the same time, and the work efficiency can be further improved.

Further, adjustment of the hoisting position by each hoisting mechanism 3 and two roll-shaped loads N3, N3
In order to enable the hoisting of the hoisting mechanism 3, the arms 6 and 7 of the hoisting mechanism 3 are rotated in a direction orthogonal to the facing direction, so that the hoisting device main body 2 that supports the hoisting mechanism 3 is upsized. Therefore, good lifting work can be performed at a narrow cargo handling work site such as a warehouse.

Further, the parallel link mechanism 8 allows the arms 6 and 7 of the hoisting mechanism 3 that face each other to move in parallel, so that the distance between the arms 6 and 7 can be easily adjusted according to the width of the load. be able to. Further, by driving the turning motor 5 to relatively rotate the locking portion 4 and the hoisting device body 2, the direction of the hoisting device body 2 can be adjusted very easily, and further workability is improved. It is possible to improve.

The drive means for each mechanism is not limited to a hydraulic cylinder, a motor or the like. Also,
The specific structure of each mechanism is not limited to the above embodiment. The work procedure for lifting various loads by the lifting device 1 is not limited to the work procedure described above.

[0059]

As described above, according to the hoisting device of the present invention, the following effects can be obtained. According to the hoisting device of claim 1, the hoisting device can be very easily hoisted by projecting the engaging piece by the engaging means to engage with the bottom of the luggage and pulling the hoisting device upward. You can Where, for example,
Even if the load to be lifted is in the form of a flexible sheet, it is extremely possible to suspend the sling stored in one arm by the suspending means through the lower part of the load in the direction of the other arm and hang it between the arms. The luggage can be easily lifted by the sling.

Further, in the case of lifting one roll-shaped load, the arms of the respective lifting mechanisms are rotated in the direction orthogonal to the facing direction so that the lower ends of the arms are brought close to each other. The locking piece can be projected by the locking means, locked in the through hole at the center of the load, and lifted to reliably lift the roll-shaped load.

Further, when hoisting two roll-shaped loads, the arms of the hoisting mechanisms are rotated in the direction orthogonal to the facing direction so that the lower ends of the arms are separated from each other, and these arms are lifted. In a state where the two pieces of luggage are arranged at the respective end surface positions, the locking pieces are projected by the locking means, and the locking pieces are locked in the through holes at the central portions of the respective cargoes to be lifted, so that the respective rolls are lifted. -Shaped luggage can be easily locked by the locking pieces and lifted.

As described above, in a cargo handling work site where various kinds of loads are handled, the lifting device replacement work depending on the type of the load can be performed as compared with the conventional case where a dedicated lifting device is used according to the type of the load. This can be dispensed with, which saves a great deal of labor and time required for exchanging the lifting device. That is, it is possible to improve the workability of the cargo handling work and shorten the work time. Further, in the case of a roll-shaped load, two loads can be lifted at the same time, which can further improve work efficiency.

Further, in order to adjust the hoisting position by each hoisting mechanism and to be able to hoist two roll-shaped loads, each arm of these hoisting mechanisms is rotated in a direction orthogonal to the facing direction. Further, it is possible to reduce the size of the lifting device main body that supports these lifting mechanisms, and it is possible to perform good lifting work at a narrow cargo handling work site such as a warehouse.

According to the hoisting device of the second aspect, by driving the transfer mechanism of the hoisting means, the sling housed in one arm is sent through the lower part of the load toward the other arm, and the sling is moved. By locking the rear end part by the sling locking mechanism of one arm and holding the tip part of the sling by the holding means of the other arm, it is possible to very easily lift various loads by the sling. it can.

According to the hoisting device of the third aspect, since the parallel link mechanism allows the opposing arms of the hoisting mechanism to move in parallel, the interval between the arms can be easily adjusted according to the width of the load. can do. According to the hoisting device of claim 4, the direction of the hoisting device main body can be adjusted very easily by driving the turning motor to relatively rotate the locking portion and the hoisting device main body. Further workability can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a hoisting device illustrating a configuration and a structure of a hoisting device according to an embodiment of the present invention.

FIG. 2 is a side view of the lifting device for explaining the configuration and structure of the lifting device according to the embodiment of the present invention.

FIG. 3 is a plan view of the sling for explaining the shape and configuration of the sling housed in the arm of the lifting device according to the embodiment of the present invention.

FIG. 4 is a schematic front view of the transfer mechanism for explaining the configuration and structure of the transfer mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 5 is a plan view of the transfer mechanism for explaining the configuration and structure of the transfer mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 6 is a plan view of the sling locking mechanism for explaining the configuration and structure of the sling locking mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 7 is a transverse cross-sectional view of the sling lock mechanism for explaining the configuration and structure of the sling lock mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 8 is a side sectional view of the sling lock mechanism for explaining the configuration and structure of the sling lock mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 9 is a cross-sectional view taken along the line AA of the sling lock mechanism for explaining the configuration and structure of the sling lock mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 10 is a BB cross-sectional view of the sling lock mechanism for explaining the configuration and structure of the sling lock mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 11 is a sectional view taken along the line AA of the sling lock mechanism for explaining the operation of the sling lock mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 12 is a BB cross-sectional view of the sling lock mechanism for explaining the operation of the sling lock mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 13 is a side view of the sling detection mechanism for explaining the configuration and structure of the sling detection mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 14 is a front view of the sling detection mechanism for explaining the configuration and structure of the sling detection mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 15 is a side view of the locking mechanism for explaining the configuration and structure of the locking mechanism provided in the arm of the lifting device according to the embodiment of the present invention.

FIG. 16 is a front view of the lifting device for lifting the load for explaining the lifting work of the load by the lifting device according to the embodiment of the present invention.

FIG. 17 is a front view of the lifting device in the state of lifting the load for explaining the lifting work of the load by the lifting device according to the embodiment of the present invention.

FIG. 18 is a front view of the lifting device in the state of lifting the load for explaining the lifting work of the load by the lifting device according to the embodiment of the present invention.

FIG. 19 is a side view of the lifting device for lifting the load for explaining the lifting work of the load by the lifting device according to the embodiment of the present invention.

FIG. 20 is a side view of the lifting device for lifting the load for explaining the lifting work of the load by the lifting device according to the embodiment of the present invention.

[Explanation of symbols]

 1 Lifting Device 2 Lifting Device Main Body 3 Lifting Mechanism 4 Locking Part 5 Swing Motor 6, 7 Arm 8 Parallel Link Mechanism 14 Sling (Holding Means) 17 Transfer Mechanism (Holding Means) 26 Sling Locking Mechanism (Holding Means) 33 Sling lock mechanism (suspension means) 51 Locking mechanism (locking means) 53 Locking piece (locking means) N1, N2, N3 Luggage

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiko Okano 9-12 Takamine-cho, Kokurakita-ku, Kitakyushu, Fukuoka (72) Inventor Ritsuro Ito 14-14 Takasuhigashi, Wakamatsu-ku, Kitakyushu, Fukuoka

Claims (4)

[Claims] 1. A pair of lifting mechanisms, each of which is composed of a pair of arms arranged at mutually opposing positions, is provided below a lifting device main body having a locking portion for locking a hook of a crane or the like provided on an upper portion thereof. A lifting device for lifting a load placed between the opposing arms of these lifting mechanisms, wherein the pair of arms are rotatably connected to the lifting device body in a direction orthogonal to the facing direction. The lifting mechanism is provided on each of the arms and has locking means for locking and locking the locking pieces for locking and lowering the luggage in opposite directions, and a sling accommodated in one of the arms, which is provided below the luggage. It is equipped with a hanging means that feeds it to the other arm through the side and hangs it between each arm. Lifting the load by the locking piece and hanging the load by the sling. Lifting characterized by comprising also serves as a bottom. 2. The suspension means includes a transfer mechanism that sends out the sling from one arm, and a sling locking mechanism that locks a rear end portion of the sling sent out by the transfer mechanism by one arm. The lifting device according to claim 1, further comprising: a sling lock mechanism that holds a tip portion of the sling sent out by the transfer mechanism by the other arm. 3. The pair of arms constituting the hoisting mechanism are connected to the hoisting device main body via a parallel link mechanism that supports the arms vertically and in parallel so as to be movable in parallel. The lifting device according to claim 1 or 2. 4. The lifting portion is rotatably provided in the lifting device main body in a horizontal plane, and the lifting device main body and the locking part are relatively rotatable with respect to the lifting device main body. The hoisting device according to any one of claims 1 to 3, further comprising a turning motor for moving the hoisting device.