JP2000302036A - Conveyance truck and conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convey a cylindrical conveyance object and a conveyance object on a plane pallet together by providing a saddle having a V-shaped part whose upper face is in a middle folded shape and plane parts provided in both end parts in the direction of folding line of the V-shaped part. SOLUTION: A rolled coil 3 is lifted on a saddle 5, the rolled coil 3 is supported on a V-shaped part 5a of the saddle 5, and a conveyance truck 1 can convey and unload the rolled coil 3 between portal transfer stands 2. A spacer 7a provided in a lower part of a pallet 7 on which an accessory conveyance object 8 such as roll and chock is loaded is supported on a plane part 5b of the saddle 5, and the conveyance truck 1 can convey and unload the pallet 7 between portal transfer bases 2'. The saddle 5 is lowered, and the pallet 7 is put on a plane part 6b adjacent to an inclined part 6a of a load- carrying platform 6 of the conveyance truck 1 so that the conveyance truck 1 can convey the pallet 7. That is, a cylindrical conveyance object such as the rolled coil 3 and a conveyance object put on the pallet 7 like plane such as an accessory conveyance object 8 can be conveyed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport vehicle for lifting and transporting a transported object from below to a carrier and a transport apparatus using the same.

[0002]

2. Description of the Related Art Conventionally, as a device for transporting articles, an article placed on a gate-shaped transfer table is lifted, lifted up, and received and transported by a carrier of a transport carriage running thereunder, and is transported to another portal type. There are various types of transfer devices that transfer the data to a transfer table.

[0003] Among them, there is an unmanned transfer truck of a transfer device for automatically transferring a rolled coil used in, for example, a steel mill as shown in FIG. FIG. 4A shows a state in which the transport vehicle 01 runs under the rolling coil 03 placed on the gate-shaped transfer platform 02. The transport vehicle 01 is controlled by an appropriate sensor and control device (not shown). It is guided to a predetermined position and stops.

[0004] As shown in FIG. 4 (b), when the saddle 05 of the lifter 04 of the transport carriage 01 rises, the rolling coil 03 is lifted on the saddle 05. As shown in FIG. 4 (e), the saddle 05 has a V-shaped bent shape for receiving the cylindrical rolling coil 03.

[0005] The transport vehicle 01 runs out of the transfer platform 02,
When the saddle 05 is lowered, as shown in FIG. 4C, the rolling coil 03 is placed on the carrier 06 of the transport vehicle 01 and transported. The bed 06 is also provided with an inclined portion 06a on the side of the saddle 05 which has been lowered to stably support the rolling coil 03.
And has a large V-shaped surface on the upper surface of the loading platform 06. In the transfer table 02 at the transfer destination, unloading is performed in the reverse procedure.

FIG. 4D is a view taken in the direction of arrow DD in FIG. 4A, and FIG. 4E is a saddle 05 of the transport vehicle 01 shown in FIG.
FIG. The lifter 04 that raises and lowers the saddle 05 is of various types such as a hydraulic cylinder, an electric cylinder, an electric motor, or the like as an actuator, which is driven directly, through a scissor, a cam, or the like.

FIG. 5 shows an unmanned transport truck for transporting various articles 08 such as rolls and chock at an ironworks, which transports various articles by using a flat pallet 07.

FIG. 5 (a) shows a state in which the transport trolley 01 'runs under a pallet 07' mounted on a gate-shaped transfer table 02 '. Is guided to a predetermined position by the sensor and the control device,
Stop.

As shown in FIG. 5B, when the saddle 05 'of the lifter 04' of the carriage 01 'is raised, the pallet 0' is lifted.
7 'is lifted on saddle 05'. Saddle 05 '
As shown in FIG. 5E, the upper surface is flat to receive the flat pallet 07 '.

When the transport vehicle 01 'runs out of the transfer platform 02' and lowers the saddle 05 ', the pallet 07 is placed on the carrier 06' of the transport vehicle 01 'as shown in FIG. Transport is performed. In the transfer table 02 'at the transfer destination, unloading is performed in the reverse procedure.

FIG. 5 (d) is a view taken in the direction of arrows EE in FIG. 5 (a), and FIG. 5 (e) is a saddle 0 of the carriage 01 'shown in FIG.
It shows the shape of 5 ′, and the upper surface is flat as described above.

[0012]

As described above, since the shape of the saddle and the loading platform of the conventional transport vehicle differs depending on the shape of the transported product, the transport device having a different shape is used as a transport device when handling transported products of different shapes. It is necessary to provide a plurality of each, and there is a problem in terms of equipment cost, adaptability of the transport system, efficiency, and the like.

In particular, when used as an unmanned transport vehicle that travels along a guide line buried on a transport path, allocating the transport vehicle to each different product is a control and operation bottleneck, and is different for each different product. Equipment costs have been a bottleneck for a system of transport equipment.

Therefore, as an attempt made in the prior art, for example, one disclosed in Japanese Patent Application Laid-Open No. H8-301002 is configured so that a saddle of a lifter can be removably fitted, and has a different shape only by replacing the saddle. The transported object can be transported.

As shown in FIG. 6, a plurality of saddles respectively corresponding to a plurality of types of conveyed objects are slid on a conveyance trolley as shown in FIG.
Each saddle can be positioned on the lifter in the center of the bogie.

FIG. 6 (a) is a side view of the transport trolley 01 ″, and FIG. 6 (b) is a view taken along the line FF in FIG.
(D) is a plan view taken in the direction of arrows GG in (a). A V-shaped saddle 05 "a having a V-shape and a saddle 05" b having a flat surface form a slide drive cylinder on a transport trolley 01 ". The slide table 09 ″ is provided.

A lifter 04 "is provided at the center of the carriage 01". In the case of a cylindrical carriage such as a rolled coil, a V-shaped saddle 05 "a is provided at the upper part as shown in FIG. 6C. In the case of a planar conveyed object such as a pallet, the slide table 09 "is slid and the flat saddle 05" is used.
b is used by being positioned on the lifter 04 ″.

However, even in these cases, the former saddle replacement requires the replacement of the saddle every time the conveyed material changes, requires manual replacement or a replacement device, and has a problem in cost. The degree of freedom is greatly restricted for conveyed objects of different shapes that are generated randomly at timing, and the efficiency of the conveyer cannot be improved, and there are many problems particularly when used as an unmanned conveyer.

The latter, which is slidably provided with a saddle, requires a large amount of saddle space, increases the length and width of the bogie, lacks compactness, and causes problems in equipment costs.

The present invention solves the above-mentioned problems of the conventional transport cart and the transport device, and can randomly generate a cylindrical transport article and a transport article on a flat pallet without making a major change to the transport cart. It is an object of the present invention to provide a transport vehicle that can be transported together and a transport device using the same.

[0021]

Means for Solving the Problems (1) The present invention has been made to solve such problems, and the invention of claim 1 includes a lifter having a saddle for supporting a conveyed article mounted on an upper portion thereof. A transport vehicle that can be placed on the upper surface of the transport vehicle after receiving the product lifted from the transport source position by lifting and lowering the lifter, and can be lowered to the destination position after lifting the product from the upper surface of the transport vehicle. The saddle has a top surface having a middle bent V-shaped portion and flat portions provided at both ends in the direction of the broken line of the V-shaped portion. is there.

According to the first aspect of the present invention, the transport carriage can lift and receive the cylindrical transported material at the bent-shaped V-shaped portion on the upper surface of the saddle, and can lower the lower surface with the flat portion on the upper surface of the saddle without changing or replacing the same. Can lift and receive a flat transported object, and a conventional flat pallet having a spacer provided on the lower surface can be transported in the same manner.

(2) According to a second aspect of the present invention, there is provided the transporting vehicle according to the first aspect, wherein the transporting vehicle runs under the cylindrical transported product on which the cylindrical transported product is mounted and the lifter is mounted. A plurality of transfer tables on which the cylindrical conveyed article can be lifted and a pallet provided with a protruding spacer on the lower surface in accordance with the position of the flat portion of the saddle, and The present invention is to provide a transport device comprising a plurality of transfer tables on which a transport trolley runs and the lifter rises to lift the pallet.

According to the second aspect of the present invention, each of the cylindrical conveyed object and the flat conveyed object such as a pallet is provided by a dedicated conveyer truck, or by using a saddle of an attached lifter by replacing it. Alternatively, the transport device can be immediately transported by the transport vehicle of the first aspect without using a transport vehicle with a saddle changing device.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A carrier according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory view of a saddle of a transport vehicle according to the present embodiment, FIG. 2 is a side view taken along the line AA in FIG. 1, (a) illustrates a state in which a pallet 7 is lifted, and (b) illustrates ( It is a BB arrow view in a).

In the present embodiment, the saddle 5 of the carriage is used.
Has a V-shaped portion 5a formed so as to have a V-shaped middle bent concave portion, and a flat portion 5b formed before and after in the direction of the middle bent line 5c. Are provided on the carrier 1 in the same manner as the carrier 01 shown in FIG. The lifter 4 that moves up and down the saddle 5 may be a hydraulic cylinder, an electric cylinder, an electric motor, or the like as an actuator. The height of the flat portion 5b is set so that the lower portion of the V-shaped portion 5a does not come into contact with the lower portion of the V-shaped portion 5a.

FIG. 2 shows a state in which the pallet 7 is lifted on the saddle 5, but in this embodiment,
A spacer 7a is attached to the lower surface of the pallet 7 in a protruding manner. The spacer 7a stands on the flat portion 5b of the saddle 5, and the lower surface of the pallet 7 does not come into contact with the V-shaped portion 5a. Have.

FIG. 3 is an explanatory diagram of a use state of the transport vehicle according to the present embodiment. FIG. 3A shows a conventional device shown in FIG.
The rolling coil 3 is supported on the V-shaped portion 5a of the saddle 5, and the carriage 1 of the present embodiment is shown in FIG. As in the conventional example described above, the rolling coil 3 can be transported and unloaded between the gate-shaped transfer tables 2. Also in the present embodiment, in order to stably support the rolling coil 3, the carrier 6 of the carrier 1 has an inclined portion 6 a on the side of the lowered saddle 5, and a large V-shape is provided on the upper surface of the carrier 6. Surface.

FIG. 3 (b) corresponds to FIG. 5 (b) of the conventional apparatus, and shows a state in which a pallet 7 on which an auxiliary conveyed material 8 such as a roll, a chock or the like is placed is lifted above the saddle 5. It is. The pallet 7 has a spacer 7a provided below the pallet 7 supported on the flat portion 5b of the saddle 5, and the transport trolley 1 of the present embodiment has a gate-shaped transfer platform 2 'similar to the conventional example described with reference to FIG. Pallet 7 can be transported and unloaded.

FIG. 3 (c) corresponds to FIG. 5 (c) of the conventional apparatus, in which the saddle 5 is lowered and the pallet 7 is placed on the flat portion 6b adjacent to the inclined portion 6a of the loading platform 6 of the transport vehicle 1. The transport cart 1 can transport the pallets 7 in the same manner as in the conventional example described with reference to FIG. Note that FIG. 3D is a side view taken along the line CC in FIG. 3C.

That is, when a conveyed article placed on a flat pallet 7 such as a cylindrical conveyed article such as the rolled coil 3 and an auxiliary conveyed article 8 is conventionally conveyed, a dedicated conveyance cart is conventionally assigned or a saddle is used. It is necessary to replace or introduce a carriage with a saddle changing device, which is inefficient and costly. However, according to the carriage 1 of the present embodiment, the V-shaped saddle By providing a flat portion 5b at the end of the pallet and a spacer 7a on the pallet 7, the other components are basically the same as those of the conventional transport trolley, so that both types of transported articles can be immediately transported.

Therefore, as an embodiment of the transfer device of the present invention, the transfer carriage 1 of the above-described embodiment and the cylindrical transfer object such as the rolling coil 3 are mounted and the cylindrical transfer object mounted thereon is mounted. The carrier 1 can run in the lower part and the lifter 4
And a plurality of transfer tables 2 on which the cylindrical conveyed material can be lifted and a pallet 7 provided with a protruding spacer 7a on the lower surface in accordance with the position of the flat portion 5b of the saddle 5. The transport device can be a transport device including a plurality of transfer tables 2 ′ on which the transport trolley 1 can run under the pallet 7 and the lifter 4 ascends to lift the pallet.

According to such a transport device, transported objects having different forms of supporting portions, such as a cylindrical transported object and a planar transported object such as the pallet 7, are simultaneously transported by operating a minimum number of transport vehicles. Thus, the efficiency of the entire transport device and the cost can be reduced. In particular, in the case of an automatic guided vehicle, control and operation can be simplified easily, and the effect of increasing the efficiency of the system is great.

In the above-mentioned embodiment of the present invention, the cylindrical conveyed material taking the roll 3 of the iron making plant as an example is not limited to the above, and any cylinder outside the paper roll in a paper mill or a printing plant may be used. The present invention is also applicable to a partially conveyed product as long as at least the supporting portion of the transfer table and the transport vehicle is cylindrical.

Further, in the embodiment of the present invention, the planar transported object such as the pallet 7 on which the auxiliary transported object 8 such as a roll and a sleeve of an iron making plant is placed is not limited thereto, but may be any transported object. Pallets, and the type of conveyed articles to be placed is not a matter of choice.
As long as the lower portion has a planar shape and is provided with the spacer 7a, the present invention is not limited to the pallet, and the present invention also covers a box, a flat-bottomed deformed object, and the like.

Although the embodiment of the present invention has been described above, it is needless to say that the present invention is not limited to the above embodiment, and various changes may be made to the specific structure within the scope of the present invention. No.

[0037]

(1) As described above, according to the first aspect of the present invention,
The transport vehicle is provided with a lifter on which a saddle for supporting the transported product is mounted, and the transporter is lifted up and down from the transport source position to receive the transported product, and then can be placed on the upper surface of the transportable vehicle and receive the transported product. In the transport trolley, the saddle can be lowered to a destination position after being lifted from the upper surface of the transport trolley, the upper surface of the saddle has a V-shaped portion having a middle bent shape, and flat portions provided at both ends in the direction of the broken line of the V-shaped portion. The transport trolley can lift and receive the cylindrical conveyed material by the bent V-shaped part on the upper surface of the saddle, and the lower surface on the flat part on the upper surface of the saddle without any change or replacement. Can lift and receive a flat transported object, and a conventional flat pallet having a spacer provided on the lower surface can be transported in the same manner. For this reason, the problems of the conventional transport cart can be solved, and a cylindrical article and a planar article such as a pallet generated at random can be transported together without making a major change to the transport cart. This leads to a reduction in transport costs.

(2) According to a second aspect of the present invention, there is provided a transport device, wherein the transport vehicle and the transport vehicle according to the first aspect are mounted and the transport vehicle is provided below the cylindrical transport product on which the transport device is mounted. A plurality of transfer tables that run and lift the lifter to lift the cylindrical conveyed object, and a pallet provided with a protruding spacer on the lower surface in accordance with the position of the flat portion of the saddle were mounted and mounted. A plurality of transfer tables on which the transport trolley runs under the pallet and the lifter ascends to lift the pallet are provided, so that the cylindrical transport object is also a planar transport object such as a pallet. Also, each of the transport carts according to claim 1, without using a dedicated transport cart, replacing the saddle of the attached lifter, or using a transport cart with a saddle changing device. Can instantly be transported to the left,
Conveyances having different forms of the support portions can be simultaneously conveyed by operating the minimum number of conveyers, so that the efficiency and cost of the entire conveyance device can be reduced. In particular, in the case of an automatic guided vehicle, control and operation can be simplified easily, and the effect of increasing the efficiency of the system is great.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a saddle of a transport vehicle according to the present embodiment.

FIGS. 2A and 2B are side views taken along arrows AA in FIG. 1, wherein FIG. 2A is a state in which a saddle lifts a pallet, and FIG.
FIG.

FIGS. 3A and 3B are explanatory diagrams of a use state of the transport vehicle according to the present embodiment, wherein FIG. 3A shows a state corresponding to FIG.
(B) is a state corresponding to FIG. 5 (b) of the conventional device, (c)
Shows a state corresponding to FIG. 5C of the conventional device,
(D) is a side view taken along the line CC in (c).

FIGS. 4A to 4C are explanatory views of a conventional transport carriage for transporting a cylindrical transported object such as a rolled coil, in which (a) to (c) show respective operation states, and (d) shows D- in FIG. D arrow view, (e)
FIG. 3 is an explanatory view of a shape of a saddle of a transport vehicle.

FIGS. 5A to 5C are explanatory views of a conventional transport trolley for transporting a planar transport object such as a pallet, wherein FIGS. 5A to 5C show the respective operating states, and FIG. 5D shows EE in FIG. (E) is an explanatory view of the shape of the saddle of the transport vehicle.

6A and 6B are explanatory views of a conventional carriage having a saddle changing device, wherein FIG. 6A is a side view thereof, and FIG. 6B is a view FF in FIG.
(C), (d) is a plan view taken along the line GG in (a), and is an explanatory view of the state of the saddle changing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveying cart 2, 2 'Transfer stand 3 Rolling coil 4 Lifter 5 Saddle 5a V-shaped part 5b Flat part 5c Middle bending line 6 Loading platform 6a Inclined part 6b Flat part 7 Pallet

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takuya Tada 3000 Tana, Sagamihara-shi, Kanagawa Mitsubishi Heavy Industries, Ltd.Sagamihara Works (72) Inventor Yuji Kito 3000, Tana, Sagamihara-shi, Kanagawa Mitsubishi Heavy Industries, Ltd. Inside the Sagamihara Works (72) Inventor Shigeharu Tateyama 20-1 Shintomi, Futtsu City, Chiba Prefecture Inside the Technology Development Division of Nippon Steel Corporation (72) Inventor Mitsuru Muramoto 5-3 Tokaicho, Tokai City, Aichi Prefecture New Japan Inside the Nagoya Steel Works, Ltd. (72) Inventor Takashi Enonami 5-3, Tokai-cho, Tokai-shi, Aichi Prefecture Nippon Steel Corporation Nagoya Works F-term (reference) 3D050 AA31 BB11 BB22 DD01 HH07 KK13 3F022 CC06 EE02 LL07 LL19 MM11

Claims (2)

[Claims] A lifter mounted on an upper portion of a saddle for supporting the transported object, wherein the lifter lifts and lifts the transported product from a transport source position, and thereafter, can place the transported product on an upper surface of the transportable trolley; The saddle can be lowered to the destination position after being lifted from the upper surface of the transport vehicle, wherein the upper surface of the saddle has a middle bent V-shaped portion, and flat surfaces provided at both ends in the direction of the broken line of the V-shaped portion. And a transport trolley comprising: 2. The transporting vehicle according to claim 1, wherein the transporting vehicle runs under a cylindrical transported product on which the cylindrical transported product is mounted, and the lifter rises to raise the lifter. A plurality of transfer tables on which objects can be lifted, and a pallet provided with a projecting spacer on the lower surface in accordance with the position of the flat portion of the saddle are mounted, and the transport trolley runs under the pallet on which the mounted pallet is mounted, and the lifter is moved. A transfer device, comprising: a plurality of transfer tables capable of rising to lift the pallet.