JP2000327109A - Method and device for temporarily receiving goods at delivery port in automated storage and retrieval system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To temporarily receive goods so as to move a fork of a transfer device backward in transferring the goods from equipment to a carriage at a delivery port in an automated storage and retrieval system, facilitate the backward movement of the fork and lower the loading level of the carriage for more stability. SOLUTION: When segments A are transferred from equipment 14 to a shaft carriage 40 at a delivery port in a three-dimensional automated storage and retrieval system storing the segments A of lining materials set up in a shaft, the segments A delivered onto the shaft carriage 40 by using a flexible fork 22 of a transfer device 20 belonging to the equipment 14 are temporarily received at the upper part of the shaft carriage 40 by an up-and-down movable temporary supporting device 30. After the fork 22 of the transfer device 20 is moved backward, a temporary receiving portion (a temporary receiving rod 35) of the temporary supporting device 30 is moved down so that the temporarily received segments A can be mounted on the shaft carriage 40 to be delivered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a lining material segment used in the excavation and construction work of a tunnel or other articles from a three-dimensional automatic warehouse installed in a shaft as a stock yard which is stocked in advance. The present invention relates to a method and a device for temporarily receiving articles at an automatic warehouse exit which enables the exit to be safely carried out.

[0002]

2. Description of the Related Art In shield construction in which a tunnel excavated and constructed underground is started from a deep shaft, a segment of lining material (hereinafter simply referred to as a segment) for lining the inner peripheral surface is carried into an excavation part. In order to save space on the ground site, attempts have been made to install a three-dimensional automatic warehouse as a stock yard for segments in the shaft.

The installation of a three-dimensional automatic warehouse in such a shaft is known, for example, from JP-A-4-70498 or JP-A-10-331599. In a three-dimensional automatic warehouse that stores segments described in these documents and sequentially unloads them, a vertical transport device that raises and lowers a transporter along the front surface of a multi-stage segment storage shelf (rack) is installed. There has been proposed a device in which a transfer device is mounted on a carrier of the device so as to be able to receive and pay for a segment transported between the segment storage shelf and the carrier.

As a transfer device mounted on a transporter in a vertical transport device for loading and unloading segments in this three-dimensional automatic warehouse, for example, the transfer device shown in FIGS. 7A and 7B is employed. The transfer device 20 includes a pair of telescopic forks 22 that are supported by a base frame 21 mounted on a transporter 14a and that can expand and contract on both front and rear sides of the transporter. Accordingly, when the fork 22 is lifted and lowered, the fork 22 is protruded from the carrier to unload or unload the rack from the carrier onto the segment storage shelf.
A configuration in which the segments are placed on the top 2 and moved horizontally is used. The fork 22 is mounted on the transporter 14a.
Second member 2 from above arm base 23 fixed on
4 and a top member 25 are of a well-known slide-expansion type in which the rack and a gear (not shown) are successively moved by twice the moving amount of the second member 24 by a meshing drive, and the upper surface of the top member 25 receives a segment. Two sets provided with the seats 26 are arranged in parallel at a predetermined interval.

[0005]

At the exit of the three-dimensional automatic warehouse, the segments are transferred from the transporter of the vertical transport device equipped with the transfer device to an underground transport vehicle traveling in a tunnel. In order to allow the fork 22 of the transfer device 20 supporting the segment to escape, it is necessary to install a segment cradle for securing a height equal to or greater than the thickness (height dimension) H of the fork 22 in the underground transport vehicle. is there.

However, in the segment to be handled, particularly in the case of a large section tunnel, the weight of the segment piece is about 5 to 10 tons.
For this purpose, the fork 22 of the transfer device 20 used when storing and unloading the segments in the automatic warehouse includes:
A thickness (height dimension) H of about 300 to 500 mm is required. Further, the thickness of the segment is also about 500 to 700 mm. From such a thing,
When mounted on an underground transport vehicle in a multi-stage stack (generally about two stages), there is a problem that the position of the center of gravity becomes high, the traveling becomes unstable, and safety is impaired.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem. When a segment or other articles are transferred from a transporter to an underground trolley at an exit of an automatic warehouse, a fork of a transfer device is used. Temporarily receive segments or other items so that the fork can be retracted, facilitate the retraction of the fork, and reduce the loading height on the transport trolley to ensure stability at the automatic warehouse exit. It is an object of the present invention to provide a receiving method and an apparatus therefor.

[0008]

Means for Solving the Problems and Action / Effect To achieve the above-mentioned object, a method for temporarily accepting articles in an automatic warehouse exit which is the first invention is a method for temporarily accepting articles in a three-dimensional automatic warehouse for storing articles. When transferring an article from a carrier of an elevator to a transport trolley, the article sent out onto the transport trolley by a telescopic fork of a transfer device attached to the transporter is transferred to the transport trolley by temporary supporting means capable of moving up and down. After temporarily receiving at the upper part and retracting the fork of the transfer device, the temporary supporting means is lowered, so that the temporarily received articles can be mounted on the transport trolley and taken out. Is what you do.

According to the present invention, the articles delivered from the storage shelves at the exit of the three-dimensional automatic warehouse are transferred onto the transport trolley waiting from the transporter by temporarily supporting the articles sent out by the temporary support means. Since the operation of retracting the fork onto the transporter is facilitated, and the temporary supporting means is lowered to lower the temporarily received article on the carrier, the thickness (height dimension) of the fork for transferring the article Regardless of (1), the support height of the transport vehicle can be reduced. as a result,
This makes it possible to lower the position of the center of gravity of the loaded articles, to ensure the stability of the transport trolley during traveling, and to carry the articles safely.

The temporary receiving operation of the articles by the temporary supporting means is performed by using a transport carriage having an opening in the center and using a telescopic temporary supporting device provided under the rail installation floor at the article transfer position at the outlet. Extending upward through the opening in the center of the transport trolley, temporarily receive the goods sent out from the automatic warehouse side by the fork of the transfer device, retract the fork of the transfer device, and then the temporary support device. It is preferable that the article temporarily contracted and placed on the carrier is placed on a transport carriage.

In this way, when transferring from the fork of the transfer device to the carrier, the article is temporarily received by the temporary support device directly on the transfer position, and the fork is easily retracted. When the temporary support device is retracted as it is evacuated, the articles are automatically loaded on the transport trolley, and the operation is easy, and as a result, the articles are reliably transferred and sent out in a short time. Therefore, the working cycle can be shortened. of course,
The temporary support device does not hinder the traveling of the transport trolley by retracting under the rail installation floor.

Next, an article temporary receiving apparatus for carrying out the method for temporarily receiving articles at the automatic warehouse exit of the second invention is provided at an article transfer position at the exit of the three-dimensional automatic warehouse for accommodating articles to the transport trolley. The articles sent out by the transfer device of the transporter of the automatic warehouse side elevator are temporarily received at the upper part of the transfer cart, and after the transfer device is retracted, the temporarily received articles are dropped onto the standby transfer cart and traveled. A provision is made of a provisional support device which can be retracted from a location.

According to the second aspect of the invention, the operation and effect of the first aspect can be easily obtained.

The temporary support device is provided with a linear actuator having a stroke capable of extending and contracting by a required length in a vertical direction below the rail installation floor level of the carriage at the outlet port. A lifting seat is provided on the top for temporarily receiving articles sent out from a transfer device of a transporter of the elevator when lifted from a lower side of a carrier having an opening at a central portion located at a delivery transfer position at the top, and a linear actuator thereof. It is preferable that the article supported by the receiving seat can be placed on the transport trolley and retracted downward when the pallet is lowered.

In this way, the articles are directly temporarily received at the transfer position to facilitate the retraction of the fork, and when the temporary support device is contracted as it is after the fork has been retracted, the articles are automatically loaded on the carrier. Therefore, there is an effect that the operation can be easily performed, the size can be reduced as a temporary support device with a simple configuration, and the device can be made economical.

It is preferable that the receiving seat provided at the top of the operating body of the linear actuator is a plurality of receiving seats. In this case, the temporary receiving support points of the article (for example, the segment) are dispersed and the stability is enhanced, and there is an effect that the temporary supporting can be safely performed without shaking.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a method for temporarily accepting articles at an automatic warehouse exit according to the first invention will be described with reference to a second embodiment.
A specific embodiment based on the article temporary receiving device of the invention will be described with reference to the drawings. In this embodiment, a case will be described in which a segment of a lining material used for constructing a tunnel is handled.

FIG. 1 is an overall view of a three-dimensional automatic warehouse of a segment to which the present invention is applied. FIG. 2 is a front view of a three-dimensional automatic warehouse installed in a shaft, and FIG. FIG. 4 is an elevation view (a) showing an example of a segment sending-out device at the exit of the three-dimensional automatic warehouse, and FIG.
-IV view partially cutaway plan view, FIG. 5 is a plan view of FIG.
Each is shown.

As shown in these figures, a three-dimensional automatic warehouse 10 of a lining material segment for constructing a tunnel according to the present embodiment.
Is erected in the starting shaft 1 of the tunnel 2 to be constructed. Then, a bridge installed to receive the segment A (hereinafter, simply referred to as “segment A”) of the lining material carried by the truck C on the ground portion to the three-dimensional automatic warehouse 10 (hereinafter, simply referred to as “automatic warehouse 10”). The crane 3 receives the cargo, and is transported from the bridge-shaped crane 3 through the loading path 5 to the entrance 11A by the entrance trolley 6, and the lifting / lowering device 12 attached to the automatic warehouse 10 from the entrance 11A.
The transporter 14 (corresponding to the elevator of the present invention) is stocked in storage shelves installed in multiple stages. In the figure, reference numeral 3a denotes a transverse girder of a bridge crane, 3b denotes a club, and 4 denotes a segment grab.

The automatic warehouse 10 includes a multi-stage storage shelf (rack) 11 for storing segments, which is formed in a multi-stage manner so as to protrude from the inner bottom portion of the shaft 1 to the ground, and a multi-stage storage shelf 11 for storing the segments. A lifting device 12 having a transporter 14 that can be raised and lowered along the front surface. The multi-stage storage shelf 11 is a space in which segments A to be stored (generally stacked in two stages) are stored, and shelves 11a, which are spaces that can easily secure a space for taking in and out, are arranged in multiple stages.
A pair of stands 11b is provided at a predetermined interval on each shelf 11a so as to be freely put in and out. In addition, such multi-stage storage shelves 11 are installed at predetermined intervals on two surfaces with the lifting device 12 interposed therebetween.

The lifting device 12 is provided with the multi-stage storage shelf 11.
The lift is set so that the segment A can be handled with respect to each of the shelves 11a, and can be moved up and down guided by guide rails attached to a pair of steel towers 13 erected at predetermined intervals. The transporter 14 is suspended on both left and right sides by wire ropes 15, 15, and is driven synchronously by hoists 16, 16 installed in the shaft 1.

The transporter 14 of the lifting device 12 thus constructed
A transfer device 20 having a pair of forks 22 that can expand and contract by a required amount to both sides in the width direction of the carrying carrier 14a (the direction intersecting with the multi-stage storage shelves 11) is mounted on the carrying carrier 14a. The transfer device 20 has a fork 22
7 has a configuration as shown in FIG. 7, and the second member 24 and the top member 25 are driven from the arm base 23 fixed to the upper surface of the base frame 21 on the carrier carrier 14a by the meshing drive of the rack and the gear. A well-known structure that allows the top member 25 to move twice as much as the amount of movement of the second member 24 is of a slide-expandable type.
6 are arranged in parallel at a predetermined interval (reference numerals are the same as those in FIG. 7).

Carrier 14 provided with such a transfer device 20
Warehouse 10 where the vehicle has descended to the lowest driving position
In the exit 11B, the traveling rail of the underground transport vehicle 40 is extended from the underground to the side of the arrival position of the transporter 14, and the delivery of the segment A from the transporter 14 to the underground transport vehicle 40 is performed. Has been made possible.

The underground transport vehicle 4 at the outlet 11B
The zero travel rail installation floor is provided above the bottom of the shaft 1 for construction of the tunnel, and therefore, a space is formed below the travel rail installation floor.

At the outlet 11B, the lifting device 1
In order to smoothly perform the operation of sending out the segment A to be unloaded onto the mine transporting vehicle 40 from the second transporter 14, a segment temporary support device 30 is provided. The temporary support device 30 is provided on the fork 22 of the transfer device 20 of the transporter 14.
At the position where the segment A is transferred onto the underground transporting vehicle 40 by the above, and provided immediately below the same.

In the temporary support device 30, a hydraulic cylinder 32 is installed upright on an appropriately framed support frame 31 by utilizing a lower space portion of a running rail installation floor 45. A plurality of temporary receiving rods 35 are attached to the upper end of the rod 33 via a supporting member 34 at required intervals so as to stand upright in the axial direction, and the tops of the temporary receiving rods 35 form receiving seats 36. In this way, if the temporary receiving rods 35 for supporting the segment A are provided in a dispersed manner, when the segments are temporarily received,
Stability can be increased by increasing the number of support points.
When the piston rod 33 of the hydraulic cylinder 32 contracts, the temporary receiving rods 35 move to the traveling rail installation floor 45.
It is positioned so as to move near or below the surface so as not to hinder the traveling of the underground transport vehicle 40. An opening 47 having a required size is formed on the traveling rail installation floor 45 directly above the temporary support device 30 so that the temporary receiving rod 35 passes through the opening and projects upward. I have.

The underground transport vehicle 40 that receives the segment A at the outlet 11B and transports the segment A to the rear of the shield machine is provided with an opening 41 having a required dimension at the center thereof. When receiving the segment A, the underground transport vehicle 40 stops at a position where the opening 41 at the center thereof substantially matches the opening 47 provided on the traveling rail installation floor 45.

The operation of sending out the segment A from the outlet 11B in the automatic warehouse 10 constructed as described above is performed by first operating the elevating / lowering device 12 in response to a request from the central management room of the face or the automatic warehouse to operate the elevator. 14 is moved to the required address, and the selected shelf 1 of the accommodation shelf 11 is moved.
The segment A accommodated in 1a is taken out by the transfer device 20, the segment is mounted and lowered to the exit 11B. When the transporter 14 of the elevating device 12 is lowered to the outlet 11B, the lowering is stopped at a fixed position by a preset limit switch (not shown).

On the other hand, an empty underground transport vehicle 40 is allocated to the outlet 11B for receiving the segment A, and waits at a predetermined position where it can be delivered. This underground transport truck 4
As for all 0's, those having an opening 41 at the center as described above are used. In the standby fixed position, the underground transport vehicle 4
0 is set so that the opening 41 substantially matches the opening 47 provided on the rail installation floor 45.

Next, the manner in which the segment A is transferred from the transporter 14 to the underground transport vehicle 40 will be described with reference to the segment transfer operation explanatory diagram shown in FIG.

First, as shown in FIG. 6A, when the transporter 14 is stopped at the fixed lower position, the hydraulic cylinder 32 of the temporary support device 30 for the segment is operated to move the piston rod 33 by the arrow a. Advance as shown.
Then, the support member 34 attached to the piston rod 33
The upper temporary receiving rod 35 passes through the opening 47 of the traveling rail installation floor 45 through the opening 41 of the underground transport vehicle 40, rises to a predetermined transfer level H1, and stops.

Then, the unloading door of the elevating device 12 (not shown) is opened, and the driving device 27 of the transfer device 20 is activated to extend the fork 22 toward the underground carrier 40 (indicated by an arrow b). When the fork 22 is extended and stopped by the maximum length, the segment A mounted on the receiving seat 26 of the fork 22 reaches just above the underground carrier 40 (position A in the figure). In this state, the segment A supported by the fork 22 is located slightly above the receiving seat 36 at the end of the temporary receiving rod 35 of the temporary supporting device 30.

Next, the lifting device 12 is driven to lower the transporter 14 to a level H2 at which the fork 22 of the transfer device can retreat (see FIG. 6B). By doing so, the segment A supported by the receiving seat 26 of the fork 22
Is transferred to the temporary receiving rod 35 of the temporary supporting device 30. By doing so, the segment A is separated from the receiving seat 26 of the fork 22 where the transfer device 20 has been extended, and the load on the fork 22 is removed. Therefore, if the transfer device 20 of the transporter 14 is reversely operated to retract the fork 22, the transporter 14 can be stored on the transporter 14 without difficulty. At the same time, close the exit door.

Thus, at the time when the fork 22 of the transfer device 20 is retracted and the fork 22 is retracted from the underground carrier 40, the piston rod 33 of the hydraulic cylinder 32 of the temporary support device 30 is moved as shown by an arrow c. If you retreat,
As shown by the two-dot chain line A in FIG. 6B, the segment A is received by a receiving table (not shown) provided on the underground transport vehicle 40, and the transfer is completed. Temporary receiving rod 3
5 is stored under the traveling rail installation floor 45 by continuing to descend and retreating one stroke.

If the length of the temporary receiving rod 35 in the temporary supporting device 30 is shortened so that the support member 34 just closes the opening 47 provided on the rail installation floor 45, the underground transport vehicle 40 Can secure the safety in the state where it has moved.

As described above, according to the method of temporarily receiving segments at the automatic warehouse exit of this embodiment, the thickness (height dimension) of the fork 22 of the transfer device 20 mounted on the transporter 14.
The segments can be transferred to the underground transport vehicle without being affected by the foreground, and the underground transport vehicle does not need to consider the relationship with the fork. You can run on the road and you can ensure safety.

In the above description, a method is described in which the temporary receiving rod of the temporary supporting device is first put on standby at the transfer position. However, if necessary, the temporary supporting device is actuated later and sent out by the fork. The segment may be temporarily accepted, and such a change in the procedure is within the scope of the present invention.

In the above description, the hydraulic cylinder is used as the temporary support device of the segment. However, a screw type jack may be used if necessary. In some cases, it is also possible to adopt a method in which the fork is temporarily received using a fork that can be moved and moved up and down separately, and the fork is transferred to the underground transport vehicle and then moved to the side of the traveling path of the underground transport vehicle. is there.

In the above embodiment, the case of handling segments of the lining material is described. However, the present invention can be similarly applied to the exit of a three-dimensional automatic warehouse for handling bulky articles and the like.

In this embodiment, the hydraulic cylinder 32 corresponds to the linear actuator of the present invention, the temporary receiving rod 35 corresponds to an operating body, and the underground transport vehicle 40 corresponds to a transport vehicle.

[Brief description of the drawings]

FIG. 1 is an overall view of an embodiment of a three-dimensional automatic warehouse for segments to which the present invention is applied.

FIG. 2 is a front view of a three-dimensional automatic warehouse erected inside a shaft.

FIG. 3 is a view taken along the line III-III of FIG. 2;

FIG. 4 is a view showing an example of a device for sending out segments at an exit of a three-dimensional automatic warehouse, (a) is an elevation view, and (b) is a partial cutaway in IV-IV of (a). It is a top view.

FIG. 5 is a plan view of FIG. 4 (a).

FIG. 6 is an explanatory diagram of a segment transfer operation.

FIG. 7 is a diagram showing a segment transfer device;
(A) is a partially omitted plan view, and (b) is a side view of (a).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pit shaft 2 Tunnel 10 Automatic warehouse 11 Multi-storage shelf (rack) 11a Shelf 11b Stand 11A Entry port 11B Exit port 12 Elevating device 14 Carrier 20 Transfer device 22 Fork 25 Top member 26 Segment receiving seat 30 Temporary support device 32 Hydraulic cylinder 33 Piston rod 34 Supporting member 35 Temporary receiving rod 36 Receiving seat 40 Underground transport vehicle 41 Opening of underground transport vehicle 45 Travel rail installation floor 47 Opening of travel rail installation floor A segment

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Exit Taneomi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Kazuhiro Inoue 1-7-20 Hanazono Minami, Nishinari-ku, Osaka City Shares F term in the company Koshihara (reference) 3F022 JJ03 JJ19 KK02 LL12 LL19 MM51 QQ01

Claims (5)

[Claims] When an article is transferred from a transporter of an elevator to a transport trolley at an exit of a three-dimensional automatic warehouse for storing articles, the article is sent out onto the transport trolley by a telescopic fork of a transfer device attached to the transporter. The article to be temporarily received is temporarily held at the upper part of the transporting cart by a vertically movable temporary support means, and after the fork of the transfer device is retracted, the temporary support means is lowered to remove the temporarily received article. An article temporary receiving method at an automatic warehouse exit, wherein the method is carried out on a transport trolley so that the article can be retrieved. 2. The temporary supporting operation of the article by the temporary supporting means uses a transport trolley having an opening in the center, and a telescopic temporary support provided under a rail installation floor at an article transfer position at the exit port. Extending the device upward through the opening in the center of the transport trolley, temporarily receive the goods sent out by the fork of the transfer device from the automatic warehouse side of the carrier, the fork of the transfer device retreats and the support 2. The method according to claim 1, wherein the provisionally received articles are placed on a transport trolley by contracting the apparatus. 3. An article sent out by a transfer device of a transporter of an automatic warehouse-side elevator to an article transfer position to a transport trolley at an outlet of a three-dimensional automatic warehouse that stores articles, is temporarily received at an upper portion of the transport trolley. And an article at an automatic warehouse exit, provided with a temporary support device that allows the article temporarily received after the transfer device is retracted to be lowered onto a standby carriage and then evacuated from a traveling place. Temporary receiving device. 4. The temporary support device is provided with a linear actuator having a stroke capable of extending and contracting by a required length in a vertical direction at a position below a rail installation floor level of the transport carriage at the outlet port, and the linear actuator is operated. A lifting seat is provided on the top of the body, which can temporarily receive articles sent from the transfer device of the transporter of the elevator when lifted from the lower side of the carriage having an opening at the center portion at the unloading transfer position. 4. The temporary article receiving device at an automatic warehouse exit according to claim 3, wherein when the operating device is lowered, the article received by the receiving seat can be placed on a transport trolley and retracted downward. 5. The temporary goods receiving device at an automatic warehouse exit according to claim 4, wherein the receiving seat provided at the top of the operating body of the linear operating device is a plurality of receiving seats.