JPH0356393A - Apticle lifting device - Google Patents

Abstract

PURPOSE:To lift a group of articles such as barstock and tubing as it is in the initially disposed state and lower it on another place, an article supporting rack, or the like by providing non-bend back chains, laid across each pair of hanging arms, getting in and out of the arms accompanied by the approach/ alienation of the arms. CONSTITUTION:A pair of sub-frames 2 are drawn close to each other along a main frame 1 to dispose non-bend back chains 6 under both ends of a group of articles (barstock)10. Hanging arms 4 are further drawn close to each other as occasion demands to be disposed near both sides of the group of articles 10. When the whole thing is lifted in this state by a crane or the like, the group of articles 10 is lifted being supported on the non-bend back chains unbendable to load from above, approximately in the initially disposed state. The group of articles 10 thus lifted is transferred to another place or above a rack or the like, together with an article lifting device and lowered as it is entirely or almost in the initially disposed state.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to lifting heavy objects such as metal bars and pipes.
Or it relates to an article hoisting device for hoisting an article down to a predetermined position.

[Prior Art] Conventionally, this type of device has been used to suspend and lower objects such as rods, pipes, etc. by passing a bendable elongated support such as a wire around the underside of the object. It is constructed so that it can be lifted.

[Problem to be solved by the invention]

However, according to the conventional device, when the group of articles that have been arranged is lifted up, the group of articles receives a lifting force from a wire or the like from the initial arrangement state, resulting in a narrow horizontal width and a large height. As a result, there is a risk that the cargo may collapse, and there is also the problem that when the lifted articles are placed in another location or on an article support rack, the original arrangement cannot be reproduced.

In addition, when a group of hanging items is suspended from a rack, the item group will be placed on the rack with its width narrower and taller. -E There is a problem in that it is not possible to minimize the downward pitch and increase the accommodation capacity.

Therefore, the present invention provides an article hoisting device that can lift a group of articles such as sacrificial materials and pipe materials in their original arrangement, and can also lower them to another location, article support rank, etc. while keeping them in their original arrangement. The purpose is to

[Means for Solving the Problems] According to the above object, the present invention includes a main frame, a pair of subframes provided on the main frame so as to be able to approach and separate from each other in a first direction along the main frame,
A surface that approaches each other in a second direction that crosses the first direction {a pair of hanging arms that are reversibly provided on each of the subframes, and a pair of hanging arms that is passed between each pair of hanging arms so that the pair of arms approach and separate from each other. a non-hend hack chain that moves in and out of the arm in accordance with the movement of the chain; and a bendable connecting part that connects an end of each chain to a fixed position on the subframe; a chain supporting and guiding means for supporting the chain so that it does not bend even when subjected to a load from above and guiding the chain to move in and out of the arm; and a connecting portion +4 for preventing the connecting member from loosening. The object of the present invention is to provide an article lifting device characterized by comprising a guide member in contact with the article lifting device.

[Function] According to the article lifting device of the present invention, a group of articles such as rods, pipes, etc. is lifted in the following manner.

That is, the main frame suspended by a crane or the like is placed above the group of articles, and the subframes on the main frame are placed further outside of both ends of the group of articles. Further, the distance between the pair of hanging arms in each sub-flange is made larger than the width of the article group. In this state, the entire assembly is lowered, and the non-hend back chain passed between each pair of hanging arms is placed below the lower surface of the group of articles. In this state, the pair of subframes are brought close to each other along the main frame 1, and the chains are placed under both ends of the group of articles. Additionally, if desired, the depending arms may be moved closer together and placed closer to each side of the group of articles.

When the entire structure is lifted up using a crane or the like in this state, the object crystal group is supported almost in its original arrangement on a non-hendo back chain that does not bend under the load from above and is lifted up.

The group of articles lifted in this way is placed at another location or above a rack, etc. equipment and are lowered there in or near its original configuration.

After unloading the group of articles, each pair of depending arms may be spaced apart from each other as necessary, away from the group of articles, and then the pair of depending arms may be moved apart from each other as necessary until the non-hending hank chain is disengaged from below the group of articles to the outside. The subframes are separated from each other and prepared for the next operation.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the front of the article lifting device, and FIG. 2 shows one side of the device.

This article lifting device includes a main frame 1 extending in a first direction X, and a pair of subframes 2, 2 provided on the frame.

The main frame 1 is provided with a pair of hanging tools 11, 11 connected to a crane hook F by a wire W at its center.

Each subframe 2 includes a frame 21 extending in a direction Y perpendicular to the first direction X, and a frame 22 rising from the center of the frame 21. The rising frame 22 is provided with four rotatable rollers 23 on the inside of its two ends.

Two of the four rollers 23 are arranged against one side of the main frame 1 (the side shown in FIG. 1), and are rolled along a shelf extending laterally on the side. move. Further, the remaining two rollers 23 are arranged on the other side of the main frame 1, and can be moved along a shelf extending laterally on the side. Thus, the subframes 2 can move toward and away from each other in the first direction X along the main frame 1.

The main frame 1 is provided with drive means 3 for each subframe 2.

Each drive means 3 is wound around chain sprockets I to 31, 32 rotatably provided in the main frame 1, and both ends thereof are connected to the subframe rising portion 22.
It consists of a chain 33 connected to the main frame, an electric motor 34 supported on the lower surface of the main frame, and a chain transmission device 35 that transmits the power of the motor to the sprocket 31. In each drive stage 3, the chain 33 also moves in the forward (reverse) direction due to the forward (reverse) rotation of the moke 34, thereby driving the pair of subframes 2, 2 toward and away from each other.

A pair of hanging arms 4, 4 are supported on the second part of each subframe 2 extending in the Y direction perpendicular to the X direction. Both arms 4, 4 are slidably supported by the Y-direction frame 21 so that they can move toward and away from each other along the Y-direction frame 21.

Further, each subframe 2 is provided with a drive stage 5 for driving the hanging arms 4, 4 toward and away from each other.

As can be seen from FIGS. 3 and 4, the drive means 5 includes a shaft 51 rotatably supported within the Y-direction frame 2l of the subframe 2, an electric motor 53 supported on the subframe 2, and the power of the motor. and a chain transmission device 52 that transmits the information to the shafts 1 and 5I. shaft 5
1 has a right-hand male thread 51a on one side from the center thereof, and a left-hand male thread 5lb on the opposite side. A right female threaded portion 41a is provided at the upper end of one arm 4, and a left female threaded portion 4lb is provided at the upper end of the other arm 4, and these female threaded portions are connected to male threaded portions 51a, 51. b
are screwed into each other.

Therefore, when the motor 53 in the drive device 5 is rotated in the normal or reverse direction, the shaft 51 is also rotated in the normal or reverse direction, and the pair of hanging arms 4, 4 are operated to approach or separate from each other.

The article lifting device further includes each pair of depending arms 4.
, with a non-bending hack chain 6 passed to 4.

This non-hend hack chain is a chain that can be bent only in one direction from a straightly extended state and cannot be bent in the opposite direction, and has a structure that is already known in itself. In this embodiment, a non-bend hack chain having a structure as shown in FIG. 5 is employed. For example, in the chain shown in Fig. 5, if part A is supported from below and a load is applied from above to part B, the chain links will collide with each other and cannot be bent, but C It can be easily bent in any direction. Both ends of the chain 6 are inserted into the depending arms 4 from the lower ends thereof.

A chain support guide means 7 is provided at the lower end of each arm 4. The chain is bent and the arm 4
It consists of upper and lower members 71 and 72 that can guide the chain so that it can go in and out, and at the same time support the chain from above and below at the lower end of the arm so that it can be supported in a cantilevered manner.

9. The upper member 71 has a chain contacting surface shaped like an arcuate surface so that the chain 61 can be bent and run;
The lower member 72 has a flat upper surface for receiving the chain.

In each hanging arm 4, a chain 8 as a bendable connecting member is connected to the end of the chain 6, and the chain 8 is guided by a guide subrocket 9 provided at the upper end of the hanging arm 4, and is connected to the end of the chain 6. Y direction frame 2l
reaches the end of and is connected to it.

Therefore, when the pair of hanging arms 4, 4 are brought close to each other, both ends of the non-hend hack chain 6 enter into the interior of each arm 4, rise, and are stored therein. In this case, since the guide sprocket 9 also moves as the arm 4 moves inward, the connecting member 8 will not loosen.

Further, when the pair of arms 4, 4 are separated from each other, the chain 6 comes out from the lower end of the arm 4. Therefore, the non-hendo pack chain 6 is always stretched horizontally or almost horizontally between the lower ends of the pair of arms 4, 4.

Next, the first
Multiple bars 1 as shown by the two-dot chain line in the figure and Fig. 2
The case of hoisting 0 or lowering it from the lifted state to a fixed position will be explained.

In the illustrated example, there are four rod shrines 10, and they are supported by supporting members 101, 101 commonly called ringgi, or in a state slightly raised from a support part U in a rank (not shown).

In order to lift the plurality of rods +4'10, as shown in FIG.
3 at both ends of the main frame 1, and by operating a crane, the main frame 1 is placed above the bow 10 as shown in the construction drawing. Chain 6 is bar 10
Adjust the overall position of the article lifting device so that it is located below the bottom surface of the article lifting device.

Next, the pair of sub-frames 2, 2 are brought closer to each other by the action of the drive stages 3, 3, and each non-hen 1, I1, hank chain 6 is connected to the bar + as shown by the two-dot chain line in FIG.
,]' Placed below the end of the IO.

Thereafter, as shown by the two-dot chain line in FIG.
Set the length to the minimum length necessary to hang the rod + A'IO. Note that the movement of the pair of arms 4, 4 in each subframe 2 toward each other can be performed by the arm driving means 5 as described above.

Now, when the crane is operated in such a state to lift the entire article lifting device upward, both ends of the bar [0] are scooped up by the non-hent hack chains 6, 6, and the arrangement state of the bar 10 is changed to the non-hent hack chains 6, 6. Since the bend hack chain does not bend, it remains in its original state. Therefore, bar 1
There is no fear that the initial arrangement of the container 0 will collapse and cause the cargo to collapse, or that the arrangement will become narrower on the left and right and taller on the top and bottom as shown in FIG. The thus-hanged tribute material 10 is suspended onto a support member 12 prepared at another location or onto a rack as it is.

After suspending the bar 10 at a predetermined position in this way, the paired arms 4, 4 are separated from each other as necessary, and the pair of sub-frames 2, 2 are separated from each other to create a non-hand pack. Remove the chains 6, 6 from the bottom of the bar 10. In this way, the article hoisting device is raised again and the next operation is carried out. [Effects of the Invention] According to the present invention, a group of articles such as rods, pipes, etc. can be lifted up in their original arrangement, and can be lifted up in their original arrangement. It is possible to provide an article lifting device that can be lowered to another location, article support rank, or the like.

[Brief explanation of drawings]

FIG. 1 is an overall front view, FIG. 2 is a side view, and FIG. 3 is a cross-sectional view for explaining a pair of hanging arms, their driving device, and the state 1 in which the non-vent hack chain enters and exits the arms. FIG. 4 is a partially cross-sectional view of the sub-frame, the hanging arm, and the surrounding portion thereof viewed from the front side, and FIG. 5 is a side view of the non-bend back chain. 1... Main frame 2... Sub frame 4... Drooping arm 6... Non-bend back chain 7... Chain support guide means 8... Connecting member 9... Guide subrocket Applicant Kawamura Kogyo Co., Ltd. (211) Sumitomo Metal Industries Co., Ltd. 14 JP-A-3 56393 (5)

Claims (1)

[Claims] (1) A main frame, a pair of subframes provided on the main frame such that they can approach and separate from each other in a first direction along the main frame, and a pair of subframes that can approach and separate from each other in a second direction that crosses the first direction. a pair of hanging arms that can be provided on each of the subframes; a non-bend back chain that is passed between each pair of hanging arms and that moves in and out of the arm as the pair of arms approaches and separates; and each of the chains. a bendable connecting member that connects an end of the chain to a fixed position of the subframe, and each of the hanging arms supports the chain so that it will not bend even if it receives a load from above, and An article lifting device comprising: a chain support guide means for guiding entry into and exit from the arm; and a guide member in contact with the connecting member to prevent the connecting member from loosening.