JP2010052876A - Article delivery device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable an article delivery vehicle to move to article delivery positions even if an article supported by an article support part is bent. <P>SOLUTION: A first article delivery position 12 and a second article delivery position 13 are communicated by the article delivery vehicle 14. An overhanging floor 20 overhanging from an end wall part 19b of a platform 19 is arranged at the second article delivery position 13. The overhanging floor 20 is connected to the end wall part 19b of the platform 19 in a vertically movable manner. A lifting device 36 is loaded on a base part 26 of the article delivery vehicle 14. The overhanging floor 20 is not lifted up by the lifting device 36 and placed at a not-allowable position until the article delivery vehicle 14 reaches the second article delivery position 13. When the article delivery vehicle 14 reaches the second article delivery position 13, the overhanging floor 20 is inserted to an overhanging floor insertion space P and is lifted by the lifting device 36 and placed to an allowable position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an article delivery apparatus.

  Conventionally, an article transport vehicle that can travel along a rail is provided between an article transfer home and an area adjacent to the rack device, and the article is transferred between the stacker crane and the article transport vehicle in the area adjacent to the rack apparatus. In an article transfer home, an article delivery device that delivers articles between a hand pallet truck and an article transport vehicle has been proposed (for example, see Patent Document 1).

In the article delivery apparatus described in Patent Document 1, as shown in FIG. 8, a support column 102 is erected on a carriage 101 of an article transport vehicle 100, and an article support base constituted by a part of each support column 102. The article 104 is supported by 103, and the article conveyance vehicle 100 conveys the article 104 in this state. The article transfer home 105 is provided with an overhanging floor 107 that cantilevered toward the article transporting vehicle 100 and on which a hand pallet truck 106 can be placed. This overhanging floor 107 is disposed between the front and rear columns 102 of the article transport vehicle 100, and below the article 104 supported by the article support base 103 when the article transport vehicle 100 moves to the article transfer home 105 side. It is supposed to be located. Therefore, when the article transport vehicle 100 is moved to the article transfer home 105 side, the article 104 can be delivered between the hand pallet truck 106 and the article transport vehicle 100 on the overhanging floor 107. Become. Further, the interval between the left and right support columns 102 is formed such that the slide fork of the stacker crane can be inserted, and when the article transport vehicle 100 is standing by in an area adjacent to the rack device 108, the stacker crane and the article transport vehicle. The article 104 is exchanged with 100.
Japanese Utility Model Publication No. 6-6312

  However, in the article delivery apparatus described in Patent Document 1, when the article 104 is supported by the article support base 103, the article 104 bends due to the weight of the article 104, as indicated by a two-dot chain line in FIG. The bottom surface 109 of 104 may be lower than the top surface 110 of the overhanging floor 107. In this case, even if the article transport vehicle 100 moves from the area adjacent to the rack device 108 toward the article transfer home 105 side in this state, and the overhanging floor 107 tries to be positioned below the article 104, the article transport vehicle 100 There is a problem that the overhanging floor 107 comes into contact with the article 104 and the article transport vehicle 100 stops before reaching the article transfer home 105. Therefore, in order to solve this problem, the support surface 111 of the article support base 103 is made higher than the overhanging floor 107 by elongating the support column 102 to avoid contact between the article 104 and the overhanging floor 107. A method of doing is also conceivable. However, in this case, it is necessary to increase the ground height D1 of the fork 112 of the hand pallet truck 106 so that the height position of the fork 112 matches the height position of the hole 114 of the pallet 113 that is a part of the article 104. . However, when the ground height D1 becomes larger than the vertical width D2 of the hole 114 formed in the pallet 113, the fork 112 cannot be inserted into the hole 114 of the pallet 113. Then, there arises a problem that the article 104 cannot be received from the article transport vehicle 100 by the hand pallet truck 106, and there is a limit to raising the receiving surface 111 of the article support base 103.

  The present invention has been made in view of the above problems, and an object of the present invention is to deliver an article in which the article transport vehicle can move to the article delivery position even if the article supported by the article support portion is bent. To provide an apparatus.

  In order to achieve the above object, the invention described in claim 1 is the delivery of the article between the article transporting vehicle that carries the article on the article supporting portion and transports it and the cargo handling vehicle that moves and handles by manual operation. A work table for performing work, and when performing the delivery operation of the article, the work table is inserted and arranged in a space formed below the article support portion in the article transport vehicle, and the article transport In the article delivery apparatus for performing the article delivery operation on the work table by disposing the vehicle at the delivery position for delivering the article to and from the cargo handling vehicle, the work table includes the article Elevating means for elevating and lowering between a permission position permitting the delivery operation of the article and a non-permitted position not permitting the article delivery operation, and a control means for controlling the operation of the elevating means, The control means includes the elevating means so as to maintain the position of the work table at the non-permitted position until the article transport vehicle arrives at the delivery position in a state where the work table is inserted. And when the article transport vehicle arrives at the delivery position, the lifting means is moved up to move the work table from the non-permitted position to the permitted position, and the delivery of the article is completed. After that, the gist is to lower the elevating means so as to move the arrangement of the work table from the permitted position to the non-permitted position.

  In this invention, when an article is mounted on the article transport vehicle at a position away from the delivery position, the article may be bent. However, since the work table is located in the non-permitted position until the article transport vehicle arrives at the delivery position, it can be avoided that the article contacts the work table until the article transport vehicle arrives at the delivery position. The article transport vehicle can arrive at the delivery position.

  Then, after the article transport vehicle arrives at the delivery position, the control means controls the elevating means to lift the work table to the permitted position. Then, the cargo handling vehicle can perform an article delivery operation on the work table, and an article delivery operation can be performed between the cargo handling vehicle and the article transport vehicle at the delivery position. When the article delivery operation is completed between the cargo handling vehicle and the article transport vehicle, the control means lowers the elevating means and returns the work table to the non-permitted position.

  The invention according to claim 2 is the invention according to claim 1, wherein the work table is provided so as to project from a wall portion extending in a vertical direction of a floor portion on which the cargo handling vehicle can travel. In this state, the top surface of the work table is flush with the floor surface of the floor portion.

  In the present invention, in the state where the lifting / lowering means lifts the work table, there is no step between the floor and the work table, so that the cargo handling vehicle can be moved from the floor to the work table without rattling.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the elevating means is an elevating device that lifts and lowers the work table from below the work table. The gist of the invention is that the base is configured to extend horizontally and to be movable in the vertical direction in a horizontal state.

  In the present invention, when the work table is moved to the permitted position by the lifting device or moved to the non-permitted position, the lifting device has a configuration in which the work table is translated in the vertical direction while being in a horizontal state. When moving the work table, the work table can be prevented from hitting the lifting device. Therefore, the load applied to the lifting device can be reduced.

  Invention of Claim 4 is provided with the detection means which detects whether the said article conveyance vehicle arrived at the said delivery position in the invention as described in any one of Claims 1-3, The said The gist of the control means is that when the article transport vehicle determines that the article transport vehicle has arrived at the delivery position from the detection result of the detection means, the elevating means performs control to move up.

  In the present invention, when the detection means detects that the article transport vehicle has arrived at the delivery position, the control means controls the elevating means to raise the elevating means. Therefore, even if the operator does not give an instruction, the work table can be lifted so that the cargo handling vehicle can deliver the goods on the work table, so that the article between the article transport vehicle and the cargo handling vehicle can be transferred at the delivery position. Delivery work can be performed smoothly.

  According to the present invention, the article transport vehicle can move to the article delivery position even if the article supported by the article support portion is bent.

  Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. In the following, the traveling direction of the article transport vehicle is the front-rear direction, the direction in which the article transport vehicle faces the work floor is the rear, the direction in which the article transport vehicle is separated from the work floor is the front, and the article transport vehicle is the work floor. “Left” and “Right” are defined with reference to when traveling toward

  As shown in FIG. 1, the delivery device 10 for the article W is provided adjacent to the automatic warehouse 11. The article W delivery device 10 is provided with a first article delivery position 12 on the side close to the automatic warehouse 11 and a second article delivery position 13 as a delivery position on the side away from the automatic warehouse 11. It has been. In the present embodiment, since there are two destinations for the articles W delivered from the automatic warehouse 11, the second article delivery positions 13 are provided at two places. And the 1st article delivery position 12 and the 2nd article delivery position 13 are connected by the article conveyance vehicle 14 which can reciprocate between them. In the present embodiment, the first article delivery position 12, the article transport vehicle 14, and the second article delivery position 13 are provided behind each rack 15 of the automatic warehouse 11.

  The automatic warehouse 11 includes a pair of racks (framed shelves) 15 having a plurality of storage portions 15 a and a stacker crane 16 that moves along a path between the pair of racks 15. The stacker crane 16 is arranged so as to be able to travel along a traveling rail 17 laid in the passage, and the stacker crane 16 carries the article W into and out of each storage portion 15a of the rack 15. Further, the stacker crane 16 is mounted with a stacker crane controller Sc (shown in FIG. 5) that controls the traveling operation and the transfer operation of the slide fork 16a.

  The first article delivery position 12 is the position closest to the rack 15, and the article transport vehicle 14 has moved to the first article delivery position 12 when the article transport vehicle 14 has moved to the first article delivery position 12. It is configured to face the stacker crane 16.

  On the other hand, as shown in FIG. 2, a work floor 19 on which an operator can perform work is provided behind the automatic warehouse 11. The floor 19a of the work floor 19 is configured to be higher than the floor of the lower floor 18 on which the bogie rails 29 are laid. The first dog d1 is provided at the end of the carriage rail 29 on the first article delivery position 12 side, and the second dog d2 is provided at the end of the carriage rail 29 on the second article delivery position 13 side. It has been. Then, the second article delivery position 13 is a tension as a work table that cantilevered horizontally from the end wall portion 19b of the work floor 19 toward the front (the first article delivery position 12 side). A floor 20 is provided.

  As shown in FIG. 3, the overhanging floor 20 is provided with a guide block 21 at an end 20 a on the work floor 19 side. The guide block 21 engages with a guide rail 22 formed on the end wall portion 19b, and the guide block 21 and the guide rail 22 engage with each other so that the overhanging floor 20 is connected in a state of being movable in the vertical direction. Has been. The guide block 21 and the guide rail 22 function as a guide mechanism that guides the overhanging floor 20 so that the entire overhanging floor 20 moves in parallel along the vertical direction.

  The end wall portion 19b is provided with a lowering stopper 23 for restricting the lowering of the overhanging floor 20 below the guide rail 22. The lower end portion 22a of the guide rail 22 abuts on the guide block 21 and the lowering stopper 23 abuts on the lower surface 20b of the overhanging floor 20 so that the lowering of the overhanging floor 20 is regulated. When the lowering of the overhanging floor 20 is restricted by the lower end portion 22a of the guide rail 22 and the guide block 21, a step is generated between the floor surface 19a of the work floor 19 and the upper surface 20c of the overhanging floor 20. That is, when the lowering of the overhanging floor 20 is restricted, the overhanging floor 20 is in a non-permitted position that does not permit the hand lift truck 35 (see FIG. 6) to move from the work floor 19 to the overhanging floor 20. To position. Therefore, the lowering stopper 23 and the lower end portion 22a of the guide rail 22 are configured as non-permitted position setting means for determining the non-permitted position of the extended floor 20. In the non-permitted position, the height difference A (see FIG. 2) between the upper surface 20c of the overhanging floor 20 and the receiving surface 34a of the article support seat 34 in a state where the overhanging floor 20 is located in the non-permitted position. The position is always greater than or equal to the amount of deflection B of the article W (see FIG. 2).

  Further, a rising stopper 24 capable of contacting the guide block 21 is provided at the upper end portion of the guide rail 22. The ascending stopper 24 abuts on the guide block 21 to restrict the ascending floor 20 from ascending. The vertical width t1 of the rising stopper 24 is set to be equal to the height difference t2 between the upper end surface 21a of the guide block 21 and the upper surface 20c of the overhanging floor 20. When the raising of the overhanging floor 20 is restricted, the upper surface 20 c of the overhanging floor 20 is flush with the floor surface 19 a of the work floor 19, and the handlift truck 35 protrudes from the work floor 19 in the overhanging floor 20. This is a permission position that permits movement to the floor 20. The ascending stopper 24 is configured as a permission position setting unit that determines a permission position of the overhanging floor 20.

  As shown in FIG. 4, the article transport vehicle 14 includes a vehicle body 25 that includes a base portion 26 having a substantially rectangular shape in plan view, and struts 27 erected from four corners of the base portion 26. On the lower surface of the base portion 26, wheels 30 that roll on the carriage rails 29 are provided at the four corners. The pair of left columns 27 are arranged such that the distance T1 between them is larger than the front-rear width T2 (see FIG. 1) of the entire pair of slide forks 16a (see FIG. 1) of the stacker crane 16. Similarly, the right pair of support columns 27 are arranged such that the distance between them is greater than the longitudinal width T2 of the entire pair of slide forks 16a of the stacker crane 16. The pair of front columns 27 are arranged such that the interval T3 between them is larger than the left-right width T4 of the extended floor 20 (see FIG. 1). Similarly, the rear pair of support columns 27 are arranged such that the distance T3 between them is larger than the left-right width T4 of the overhanging floor 20. And between the pair of front support columns 27 is an insertion opening for inserting the overhanging floor 20. The overhanging floor insertion space P into which the overhanging floor 20 is inserted is surrounded by the columns 27. The overhanging floor insertion space P is a space that opens to the overhanging direction (front-rear direction) and upward of the overhanging floor 20. An article support seat 34 as an article support part on which the article W is placed is attached to the upper end portion of the column 27. The article W includes the pallet X and the load Y mounted on the pallet X. In this embodiment, the pallet X is a double-sided four-way pallet in which insertion ports X1 are formed in four directions, front, rear, left and right. The article support seat 34 is configured to receive the bottom corner of the pallet X by the receiving surface 34a.

  Here, as shown in FIG. 5, the article transport vehicle 14 includes a travel drive device 41 (for example, a motor) and a dog sensor 42, and is configured such that the travel state is controlled by the controller 43. Yes. The controller 43 includes a CPU (central processing unit) that performs arithmetic processing for controlling various devices, and is electrically connected to the ground-side control panel 31 installed on the work floor 19 via a cable (not shown). Connected.

  Further, as shown in FIG. 2, an elevating device 36 as an elevating means is provided on the base portion 26 so as to be positioned inside each column 27. In FIG. 4, the lifting device 36 is not shown for the sake of illustration. The elevating device 36 includes a base portion 37, a link mechanism 38 rotatably provided on the base portion 37, a lift drive device 39 (see FIG. 1) that rotates these link mechanisms 38, and a lift table 40. It consists of and. The lift drive device 39 is constituted by a cylinder, for example. The lift table 40 is configured to move up and down via a link mechanism 38 when the lift drive device 39 is driven. When the article transport vehicle 14 moves to the second article delivery position 13, the lifting device 36 is positioned directly below the overhanging floor 20, and the lifting device 36 can lift the overhanging floor 20. Further, when the lifting device 36 is not lifting the overhanging floor 20, the overhanging floor 20 is positioned at a non-permitted position lower than the floor surface 19 a of the work floor portion 19, and the lift table 40 is positioned on the overhanging floor 20. It is lower than the lower surface 20b. On the other hand, when the overhanging floor 20 is lifted by the lifting device 36, the overhanging floor 20 rises to the permitted position, and the upper surface 20 c of the overhanging floor 20 is flush with the floor surface 19 a of the work floor 19.

Next, a control configuration of the article W delivery device 10 according to the present embodiment will be described.
As shown in FIG. 5, the controller 43 is electrically connected to a travel drive device 41 that drives the wheels 30 (see FIG. 4), a dog sensor 42, and a lift drive device 39. The travel drive device 41 operates to drive the wheels 30 when a command signal is input from the controller 43. Then, when the first movement command signal is input from the controller 43, the travel drive device 41 operates to move the article transport vehicle 14 to the first article delivery position 12. In addition, when the second movement command signal is input from the controller 43, the traveling drive device 41 operates to move the article transport vehicle 14 to the second article delivery position 13. The dog sensor 42 is configured to output a first detection signal when detecting the first dog d1, and to output a second detection signal when detecting the second dog d2. The detection means includes a dog sensor 42 and a second dog d2. When the lift command signal is input from the controller 43, the lift drive device 39 causes the lifting device 36 to perform a lifting operation, and when the control device 43 receives a lowering command signal, the lift driving device 39 causes the lifting device 36 to perform a lowering operation. To work.

  The ground side control panel 31 is composed of a CPU (central processing unit) that performs arithmetic processing for controlling various devices. The ground side control panel 31 gives an instruction to the control controller 43 and controls the control controller 43 to perform a predetermined operation. The ground-side control panel 31 is configured to transmit and receive signals to and from the stacker crane controller Sc wirelessly, and is configured to teach the operation state of the stacker crane 16 to the control controller 43.

  The stacker crane controller Sc is configured to control the traveling operation of the stacker crane 16 and the operation of the slide fork 16a in accordance with a command from the ground side control panel 31. The control means is constituted by a controller 43.

Next, the operation of the article delivery device 10 configured as described above will be described.
When the article W stored in the rack 15 of the automatic warehouse 11 is carried out, the ground side control panel 31 instructs the stacker crane controller Sc, and the stacker crane controller Sc sends the article from the target storage unit 15a to the stacker crane 16. After W is taken out, the stacker crane controller Sc is controlled to face the first article delivery position 12 (the side away from the rack 15). Further, the controller 43 outputs a first movement command signal to the travel drive device 41 to move the article transport vehicle 14 to the first article delivery position 12 and wait at the first article delivery position 12. Note that when the article transport vehicle 14 is located at the first article delivery position 12, the overhanging floor 20 is not lifted, and thus is lowered to the non-permitted position. When the transfer command is input from the ground side control panel 31, the stacker crane controller Sc operates the slide fork 16 a of the stacker crane 16, and the lower four corners of the pallet X are supported by the article support seat 34. In this manner, the article W is placed on the article support seat 34 of the article transport vehicle 14. At this time, the controller 43 outputs a lowering command signal to the lift driving device 39, and keeps the lifting device 36 in the lowered state.

  Next, when the placement of the article W is completed, the controller 43 outputs a second movement command signal to the travel drive device 41. Then, the traveling drive device 41 is driven, and the article transport vehicle 14 moves from the first article delivery position 12 toward the second article delivery position 13. Here, as shown in FIG. 6A, in the state before the article W is placed on the article support seat 34 and the article transport vehicle 14 arrives at the second article delivery position 13, four corners of the article W are obtained. Is supported by each support column 27, the article W is bent due to its own weight. However, at this time, since the overhanging floor 20 is located at the non-permitted position, the article W is overhanging while the article transporting vehicle 14 is moving from the first article delivery position 12 to the second article delivery position 13. No contact with 20. Then, as shown in FIG. 6B, when the article transport vehicle 14 arrives at the second article delivery position 13, the overhanging floor 20 is disposed in the overhanging floor insertion space P and is stretched below the article W. The floor 20 is located.

  When the article transport vehicle 14 arrives at the second article delivery position 13, the dog sensor 42 outputs a second detection signal to the control controller 43, and the control controller 43 is driven to lift when the second detection signal is input. A rising command signal is input to the device 39, and the lifting device 36 is moved up. Then, as shown in FIG. 6C, the overhanging floor 20 is lifted upward by the lifting device 36. Then, the overhanging floor 20 rises to a permitted position where the floor surface 19a of the work floor portion 19 and the upper surface 20c of the overhanging floor 20 are in the same plane.

  Thereafter, the operator pushes the hand lift truck 35 with the fork 35a lowered to move the hand lift truck 35 from the floor surface 19a of the work floor portion 19 to the upper surface 20c of the overhanging floor 20 and the fork of the hand lift truck 35. 35a is inserted into the insertion port X1 of the pallet X. Further, the operator raises the fork 35a to place the article W on the fork 35a, and then the operator moves the hand lift truck 35 to a predetermined position, and at that position, the article W is moved. It is lowered from the hand lift truck 35 and carried to a predetermined position. After the article W is placed on the fork 35a, the operator operates the control controller 43 so that the control controller 43 outputs a lowering command signal to the lift driving device 39 and lowers the lifting device 36. Then, the overhanging floor 20 is lowered to the non-permitted position.

  On the other hand, when the article W is carried into the rack 15, the control controller 43 controls the travel drive device 41 to cause the article transport vehicle 14 to stand by at the second article delivery position 13. At this time, since the controller 43 outputs the ascending command signal to the lift driving device 39, the elevating device 36 is moving up, and the overhanging floor 20 is lifted to the permitted position by the elevating device 36. It becomes. Then, the hand lift truck 35 on which the article W is placed is pushed by the operator and moved from the work floor 19 to the overhanging floor 20, and the fork 35a is positioned above the article support seat 34. The lift truck 35 is stopped. Next, the operator lowers the fork 35 a to place the article W on the article support seat 34.

  When the article W is placed on the article support seat 34, the operator pulls the fork 35 a of the hand lift truck 35 from the pallet X and moves the hand lift truck 35 from the overhanging floor 20 to the work floor 19. . Thereafter, when the operator operates the control controller 43 to output a lowering command signal from the control controller 43, the lifting device 36 is lowered to lower the extended floor 20. Thereafter, when the first movement command signal is input from the controller 43, the travel drive device 41 is driven, and the article transport vehicle 14 moves from the second article delivery position 13 to the first article delivery position 12. Thereafter, when the article transport vehicle 14 arrives at the first article delivery position 12 and a first detection signal is output from the dog sensor 42 to the control controller 43, the control controller 43 controls to stop the article transport vehicle 14. To do. Then, the ground side control panel 31 commands the stacker crane controller Sc, and the stacker crane controller Sc receives the article W placed on the article transporter 14 with respect to the stacker crane 16 and stores the rack 15 in a predetermined storage. The operation of carrying in the unit 15a is performed.

According to this embodiment, the following effects can be obtained.
(1) Until the article transporting vehicle 14 arrives at the second article delivery position 13 from the first article delivery position 12, the controller 43 controls the elevating device 36 to perform the lowering operation, and the extended floor 20 is placed in a non-permitted position. When the article transporting vehicle 14 moves to the second article delivery position 13, the overhanging floor 20 is inserted into the overhanging floor insertion space P, and the elevating device 36 is controlled to perform the ascending operation. The floor 20 is lifted to the permission position. Therefore, even if the article W placed on the article support seat 34 is bent when the article transporting vehicle 14 is located at the first article delivery position 12, the article transporting vehicle 14 is in the first article delivery position. The article W does not come into contact with the overhanging floor 20 before moving from the position 12 to the second article delivery position 13. As a result, the article transport vehicle 14 can arrive at the second article delivery position 13 from the first article delivery position 12. At the second article delivery position 13, the article transport vehicle 14 and the hand lift truck 35 The article W can be delivered between them.

  (2) When the overhanging floor 20 is lifted by the elevating device 36, the upper surface 20 c of the overhanging floor 20 is raised to a permitted position where it is flush with the floor surface 19 a of the work floor 19. Therefore, when the overhanging floor 20 is lifted by the lifting device 36, no step is generated between the upper surface 20 c of the overhanging floor 20 and the floor surface 19 a of the work floor portion 19. It is possible to move from the portion 19 to the overhanging floor 20 without rattling.

  (3) The extended floor 20 is configured to be horizontally extended and to be translated in the vertical direction in a horizontal state. Therefore, when the lifting device 36 lifts or lowers the overhanging floor 20, it is possible to prevent the overhanging floor 20 from hitting the lifting device 36, so that the load on the lifting device 36 can be reduced. it can.

  (4) The dog sensor 42 and the second dog d2 are configured to detect that the article transport vehicle 14 has arrived at the second article delivery position 13. When detecting that the article transport vehicle 14 has arrived at the second article delivery position 13, the controller 43 controls the lifting device 36 to cause the lifting device 36 to perform a lifting operation. Therefore, even if the operator does not give an instruction, when the article transport vehicle 14 arrives at the second article delivery position 13, the lifting device 36 lifts the overhanging floor 20, and the handlift truck 35 moves over the overhanging floor 20. A state in which goods can be delivered can be obtained. As a result, the delivery operation of the article W between the first article delivery position 12 and the second article delivery position 13 can be performed smoothly.

The embodiment is not limited to the above, and may be configured as follows, for example.
The article support seat 34 may be configured so as to be integrated with the column 27. For example, the upper end portion of the support column 27 may be processed so that the upper end portion of the support column 27 has the same shape as the article support seat 34, so that the upper end portion of the support column 27 is configured as an article support unit.

  (Circle) you may change the position which provides the article support seat 34 as an article support part. The position where the article support seat 34 is provided is not limited to the upper end portion of the column 27. For example, an article support seat 34 may be provided on the inner side surface of each column 27 so as to correspond to the four corners of the pallet X.

  ○ The structure of the extended floor 20 may be changed. For example, as shown in FIG. 7 (a), at the center in the left-right direction of the overhanging floor 20, the end 20d on the working floor 19 is spaced from the overhanging end 20d of the overhanging floor 20 at equal intervals. A plurality of free rollers 50 may be provided so as to be arranged. All the free rollers 50 are pivotally supported in a state where a part of the peripheral surface 50a of the free roller 50 exists above the upper surface 20c of the overhanging floor 20. If comprised in this way, when the hand lift truck 35 moves on the overhanging floor 20 and inserts the fork of the hand lift truck 35 into the insertion port X1 to convey the article W, the bottom surface of the pallet X is a free roller. 50, the frictional resistance received when the hand lift truck 35 transports the article W can be reduced. Further, a ball roller may be provided in place of the free roller 50 as a member for reducing the frictional resistance. Further, as a member for reducing the frictional resistance, a low friction material may be provided on the upper surface of the overhanging floor 20 instead of the free roller 50 and the ball roller which are spherical members. In this case, for example, when the pallet X is made of resin, a nylon monomer (MC nylon) plate is used as the low friction material, and when the pallet X is made of iron, a stainless plate is used.

  O There is no particular limitation on the configuration of the slide mechanism that enables the overhanging floor 20 to be translated in the vertical direction. For example, a roller may be provided on the sliding surface of the guide rail 22 on which the guide block 21 slides so that the guide block 21 can move along the guide rail 22 more smoothly.

  ○ The overhanging floor 20 may be changed to a structure in which the overhanging floor 20 can be rotated up and down instead of a structure in which the entire overhanging floor 20 can move in parallel in the vertical direction. For example, as shown in FIG. 7 (b), the end 20 a on the work floor 19 side of the overhang 20 is connected to the end wall 19 b of the work floor 19 by a hinge 51, thereby 20 is configured to be vertically rotatable around the end 20a on the work floor 19 side. Then, when the overhanging floor 20 is lifted by the elevating device 36, the end 20d on the overhanging side of the overhanging floor 20 rises so as to draw an arc in the direction of the arrow in FIG. You may comprise so that the upper surface 20c may rise until it becomes the same plane as the floor surface 19a.

  O The configuration of the lifting device 36 is not particularly limited. The lifting device 36 may be any device that operates to lift the overhanging floor 20. For example, a hydraulic lifting device 36 or an electrical lifting device 36 may be used.

  The place where the article delivery device 10 is provided is not limited to the position adjacent to the automatic warehouse 11. For example, the article W may be delivered between the worker and the article transport vehicle 14 at the first article delivery position 12.

  The timing when the lifting / lowering device 36 performs the lifting operation may be changed, and the lifting / lowering device 36 may not be lifted when the dog sensor 42 detects the second dog d2. For example, after the article transport vehicle 14 arrives at the second article delivery position 13, the operator manually operates the controller 43 to output an ascending command signal from the controller 43 to the lift drive device 39. May be.

  O It is not necessary to mount the lifting device 36 on the article transporting vehicle 14, and the position where the lifting device 36 is provided may be changed. The lifting device 36 may be placed on the lower floor 18 so as to be always below the overhanging floor 20 as long as it does not interfere with the travel of the article transport vehicle 14.

  -You may change the height of the permission position which controls the raising of the overhanging floor 20. If the hand lift truck 35 can move from the overhanging floor 20 to the work floor 19, the permitted position is that the upper surface 20 c of the overhanging floor 20 and the floor surface 19 a of the work floor 19 are in the same plane. It doesn't have to be a position. Therefore, a position where the upper surface 20c of the overhanging floor 20 is slightly lower than the floor surface 19a of the work floor portion 19 may be set as the permitted position, and the upper surface 20c of the overhanging floor 20 is slightly higher than the floor surface 19a of the work floor portion 19. It is good also considering this position as a permission position.

  The descending stopper 23 and the ascending stopper 24 may be omitted. For example, if the elevating device 36 always supports the overhanging floor 20 and the permission position of the overhanging floor 20 is set according to the ascending amount of the elevating device 36, the lowering stopper 23 and the raising stopper 24 may be omitted.

The following technical idea (invention) can be understood from the embodiment.
(A) The work table projects in a cantilever manner in a state of being movable in parallel in the vertical direction, and includes a work table connection means for connecting an end of the work table on the floor side to a wall portion of the floor. The article delivery apparatus according to claim 2.

The schematic plan view which shows the delivery apparatus of the articles | goods in one Embodiment. The schematic side view which shows the delivery apparatus of the articles | goods in one Embodiment. AA line schematic sectional drawing of FIG. The model perspective view of an article conveyance vehicle. The block diagram which shows the electrical structure of the delivery apparatus of articles | goods. (A) is a schematic side view showing a state when the article transport vehicle is located at the first article delivery position, and (b) shows a state when the article transport vehicle arrives at the second article delivery position. The schematic side view, (c) is a schematic side view showing a state in which the overhanging floor is lifted by the lifting device. (A) is a schematic side view of the article delivery apparatus in another embodiment, (b) is a schematic side view of the article delivery apparatus in another embodiment. The schematic side view of the delivery apparatus of the articles | goods which show a prior art.

Explanation of symbols

  P ... Overhang floor insertion space, W ... Article, 10 ... Article delivery device, 12 ... First article delivery position, 13 ... Second article delivery position, 14 ... Article transport vehicle, 19 ... Work floor, 19b DESCRIPTION OF SYMBOLS ... End wall part, 20 ... Overhang floor as work bench, 34 ... Article support seat as article support part, 35 ... Hand lift truck as cargo handling vehicle, 36 ... Lifting device, 43 ... Control controller.

Claims (4)

A work table for delivering the article between the article transporting vehicle that carries the article on the article supporting portion and carrying the article and the cargo handling vehicle that moves and handles by manual operation; Is a delivery operation in which the work table is inserted and arranged in a space formed below the article support portion in the article transport vehicle, and the article transport vehicle performs the delivery operation of the article with the cargo handling vehicle. In the article delivery apparatus for performing the delivery work of the article on the work table by arranging at a position,
Elevating means for moving the work table up and down between a permission position that permits the article delivery work and a non-permitted position that does not allow the article delivery work;
Control means for controlling the operation of the lifting means,
The control means controls the elevating means so as to maintain the position of the work table at the non-permitted position until the article transport vehicle arrives at the delivery position with the work table inserted. , When the article transport vehicle has arrived at the delivery position, the lifting means is moved up to move the work table from the non-permitted position to the permitted position, and after the delivery of the article is completed, An article delivery apparatus characterized in that the lifting means is moved down to move the position of the work table from the permitted position to the non-permitted position. The work table is provided so as to protrude from a wall portion extending in the vertical direction of the floor portion on which the cargo handling vehicle can travel,
2. The article delivery device according to claim 1, wherein an upper surface of the work table is flush with a floor surface of the floor portion when the work table is raised to the permission position. The lifting means is a lifting device that lifts and lowers the work table from below the work table,
The article delivery device according to claim 1 or 2, wherein the work table projects horizontally and is movable in the vertical direction in a horizontal state. Detecting means for detecting whether or not the article transport vehicle has arrived at the delivery position;
4. The control device according to claim 1, wherein when the article transport vehicle determines that the article transport vehicle has arrived at the delivery position based on a detection result of the detection device, the control device controls the lift device to move up. 5. The delivery device for the article.

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