JP2009102127A - Carrying in-and-out device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an carrying in-and-out device accessible from a plurality of directions. <P>SOLUTION: The carrying in-and-out device has conveyors 151 forming a conveyance path, connected with an end of a belt conveyor 110 which is a main conveying device, receiving a conveyance object 130 conveyed by the belt conveyor 110 from a hand lift 101 which is a cart provided with a loading claw and delivering it to the belt conveyor 110. The carrying in-and-out device is provided with first passing spaces 161 arranged along the conveyance path of the conveyors 151 through which wheels of the hand lift 101 travel and a second passing spaces 162 arranged to cross the conveyance path of the conveyors 151 through which wheels of the hand lift 101 travel. The conveyors 151 are arranged across the first passing spaces 161 and arranged across the second passing spaces 162. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a loading / unloading device connected to a path end of a conveying device such as a roller conveyor, and in particular, a loading object from a plurality of directions using a carriage equipped with a loading claw for scooping up and placing the conveyance object. It is related with the carrying in / out apparatus which can carry in and carry out.

  At logistics bases, etc., it is necessary to load the cargo placed on the loading claws such as hand lifts and forklifts onto the conveyor, and it has been carried on the conveyor from an automated warehouse. It is necessary to transfer the luggage onto the loading claw. Therefore, in the vicinity of the front end of the conveyor, a loading / unloading device is provided for delivering the luggage to the carriage and receiving the luggage from the carriage.

As a concrete loading / unloading device, there is a roller conveyor as described in Patent Document 1, for example. The roller conveyor is a loading / unloading device that loads and unloads a long baggage as a conveyance target. The roller conveyor uses a forklift or the like to load the load, and when delivering the loaded load, the roller conveyor has a gap between the rollers so that the loading claw (fork) and the roller do not interfere with each other. The structure which secures the part which opens and the mounting nail | claw is inserted / extracted is employ | adopted.
JP-A-5-193708

  However, when there is only one loading / unloading direction, which is a direction in which the loading claw included in the carriage can access the loading / unloading device like the roller conveyor, the following problems occur.

  That is, when the insertion hole for inserting the placement claw is provided in only one direction on the pallet provided in the conveyance object, the pallet is placed in the loading / unloading device with the insertion hole being perpendicular to the loading / unloading direction. When placed, since the placement claw cannot enter under the conveyance object, the carriage cannot pick up, and the conveyance object cannot be carried out from the loading / unloading device.

  In order to avoid such problems, it is sufficient to use a pallet in which insertion holes into which the placement claws are inserted are provided in two directions. However, since the strength of the pallet is reduced, the weight of the load placed on the pallet is reduced. And the price of the pallet itself is relatively high, leading to an increase in cost for distributing the cargo.

  Moreover, when carrying in and carrying out the conveyance objects one after another from the loading / unloading apparatus, the loading / unloading direction is set when the first lift places the conveyance objects on the loading / unloading apparatus and exits the loading / unloading apparatus. If there is one, the second lift that is reserved next must wait in a distant position to avoid contact with the first lift. Therefore, it is necessary to secure a large space around the loading / unloading device for waiting the lift. Moreover, the shape of the building and the installation layout of other facilities had to be determined according to the carry-in / out device, and the degree of design freedom was low.

  The present invention has been made in view of the above problems, and an object thereof is to provide a loading / unloading apparatus capable of forming a plurality of loading / unloading directions.

  In order to achieve the above object, a carry-in / out device according to the present invention is connected to an end portion of a main transport device and accepts a transport object to be transported by the main transport device from a carriage provided with a placement claw, or A loading / unloading device having a conveyor that feeds a carriage provided with a loading claw and forms a conveyance path to the main conveyance apparatus, and is provided along the conveyance path of the conveyor, the carriage provided with the placement claw described above A first passage space through which the placement claw passes, and a second passage space through which the placement claw of the carriage provided with the placement claw, which is provided so as to intersect the conveyance path of the conveyor, The conveyor is disposed with the first passage space interposed therebetween and is disposed with the second passage space interposed therebetween.

  Thereby, the loading claw of the carriage can enter and exit the carry-in / out device through the first passage space, and can enter and leave the carry-in / out device through the second passage space. Therefore, two loading / unloading directions can be formed with respect to one loading / unloading device, and the degree of freedom for loading / unloading the object to be conveyed can be improved. As a result, efficiency in carrying in / out of the conveyance object can be achieved. Moreover, the freedom degree of a conveyance target object also improves. For example, even if the pallet has a loading claw that can only be inserted from one side, the conveyance target is not affected by the conveyance state (whether the insertion hole is perpendicular to the conveyance direction or the insertion hole is in the conveyance direction). It becomes possible to carry out things.

  Furthermore, it is preferable to provide a lower transmission device that is disposed below the second passage space and transmits a driving force from one of the conveyors disposed across the second passage space to the other.

  In addition, a transmission conveyor may be provided that extends from one conveyor disposed across the first passing space to the other conveyor, disposed at an end of the first passing space on the main conveying device side edge. preferable.

  As a result, it is not necessary to provide a drive source for each conveyor. As a result, it is not necessary to control the driving sources to match the conveying speeds of the individual conveyors, and it is possible to suppress the generation of heat and increase the cost.

  Furthermore, it is preferable to provide a regulating device that regulates the position of the conveyance object so as to be variable above one end of the second passage space.

  Thereby, even when a conveyance object is carried in using the second passage space, the position of the conveyance object in the conveyance path can be accurately determined.

  According to the present invention, a plurality of loading / unloading directions with respect to the loading / unloading apparatus can be performed, and a conveyance object can be efficiently loaded / unloaded, and the degree of freedom of the conveyance object can be improved.

  Next, embodiments according to the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view schematically showing a carry-in part and a carry-out part of an automatic warehouse.

  As shown in the figure, the automatic warehouse includes a carry-in unit 100 and a carry-out unit 200.

  The carry-in unit 100 is a device for carrying a conveyance object 130 or the like placed on the pallet 120 into an automatic warehouse, and is connected to a belt conveyor 110 as a main conveyance device and an end of the belt conveyor 110. And a carry-in / out device 150.

  The carry-out unit 200 is a device for carrying out the conveyance object 130 and the like placed on the pallet 120 from the automatic warehouse, and is connected to a belt conveyor 210 as a main conveyance device and an end of the belt conveyor 210. And a carry-in / out device 150.

  The hand lift 101 as a carriage provided with mounting claws described in the vicinity of the loading / unloading device 150 in the figure includes a total of four wheels on the front, rear, left and right below the mounting claws, and is placed on the mounting claws. It is a cart for transporting the transported object 130 by human power, and can lift the transported object 130 placed on the placing claws together with the placing claws.

  Although a plurality of hand lifts 101 are shown in the figure, this merely shows the positions where the hand lift 101 can enter and leave.

  FIG. 2 is a plan view showing the carry-in / out device.

  3A and 3B are views showing the carry-in / out device, in which FIG. 3A is a plan view mainly showing the driving force transmission device, and FIG. 3B is a side view showing the carry-in / out device.

  The loading / unloading device 150 shown in these drawings can transfer the placed conveyance object 130 to the belt conveyor 110 and can move the conveyance object 130 received from the belt conveyor 210 to a predetermined position. The apparatus includes a conveyor 151, a first passage space 161, a second passage space 162, a driving device 170, and a restriction device 180.

  The conveyor 151 is a roller conveyor that forms a conveyance path to the belt conveyors 110 and 210, and includes a driving roller 152, a free roller 153, and a transmission roller 154.

  The driving roller 152 is a roller capable of transporting the transported object 130 by being rotated by obtaining a driving force from a motor 174 as a driving source, and is a transport path (in the drawing) of the carry-in / out device 150. A plurality of elements are arranged along both end edges in a direction (x direction in the figure) perpendicular to the y direction. One to three drive rollers 152 are arranged in a section divided by the first passage space 161 and the second passage space 162.

  The free roller 153 is disposed between the driving rollers 152 and supports the placed conveyance object 130 and can freely rotate so that no frictional force is generated as the conveyance object 130 is conveyed. Laura. The drive roller 152 may be provided at a position where the free roller 153 is disposed. In this case, a driving source may be provided separately, and the driving force of the motor 174 may be transmitted using a lower transmission device 172 described later.

  The transmission roller 154 is disposed in front of the conveyance path of the driving roller 152 and the free roller 153, and extends from the right end of the driving roller 152 on the right side in the drawing to the left end of the driving roller 152 on the left side in the drawing. The roller is provided with a thickness, and is a roller that is driven to rotate by obtaining a driving force from a motor as a driving source.

  The first passage space 161 is a passage provided along the transport path (y direction in the figure) of the conveyor 151, and smoothly enters the carry-in / out device 150 without the placement pawl of the handlift 101 being blocked by the rollers. It is a passage to do.

  The second passage space 162 is a passage provided along a direction (x direction in the figure) perpendicular to the transport path (y direction in the figure) of the conveyor 151, and the placement claw of the handlift 101 is blocked by the roller. This is a passage for smoothly entering the carry-in / out device 150 without being carried out.

  In the case of the present embodiment, the floor surface 163 of the first passage space and the second passage space is a flat surface. As a result, as shown in FIG. 4 (a), smooth entry and exit are possible even with a carriage such as the handlift 101 that requires the wheels 105 and the loading claws 102 to enter the carry-in / out device 150 as shown in FIG. . In the case where the bottom surface of the conveyance object 130 is scooped up by the mounting claw 102 with a carriage that can project the mounting claw 102 horizontally from a wheel 105 such as a forklift 103 shown in FIG. Since 102 and the floor surface 163 do not interfere with each other, the floor surface 163 of the first passage space 161 or the second passage space 162 does not need to be a flat surface.

  The placement claw enters the lower part of the conveyance object 130 placed on the roller and scoops up (or lifts) the conveyance object 130 to receive the conveyance object 130 from the roller. This is a member for delivering the conveyance object 130 placed on the placement claw to the roller. The mounting claw provided in the handlift 101 or the forklift has two claws arranged in parallel in the horizontal direction.

  The drive device 170 is a device for rotating the drive roller 152 to convey the conveyance object 130 placed on the conveyor 151. The normal transmission device 171, the lower transmission device 172, and a motor as a drive source 174.

  The normal transmission device 171 is a device that transmits a driving force from one of the adjacent driving rollers 152 to the other, and meshes with a sprocket (not shown) provided on a driving shaft 173 integrally extending from the driving roller 152 and the sprocket. It is composed of an endless chain.

  The lower transmission device 172 is a device for avoiding the drive transmission path below the second passage space 162 so that the driving device 170 does not cross the second passage space 162. In the case of the present embodiment, an avoidance shaft 175 disposed below the drive shaft 173 of the drive roller 152 disposed across the second passage space 162, a sprocket provided on the drive shaft 173, and an avoidance shaft 175 And an endless chain extending in the up-down direction (z direction in the figure) meshing with a sprocket provided on the shaft, and an endless chain extending in a conveying path (7 direction in the figure) for connecting the avoidance shafts 175 to each other.

  With such a configuration, since the driving force between the driving rollers 152 can be transmitted while avoiding the floor surface of the second passage space 162, the placement claw and the hand lift 101 passing through the second passage space 162 can be prevented. It is possible to smoothly carry in / out the conveyance object 130 without interference between the wheel and the driving device 170.

  Further, the driving force of the motor 174 is transmitted to the two driving rollers 152 arranged separately in the direction perpendicular to the conveyance path via the transmission roller 154. Therefore, even if the conveyor 151 is divided by the first passage space 161 and the second passage space 162, it is possible to rotate and drive all the driving rollers 152 by one motor 174.

  The restriction device 180 is a device that restricts excessive entry of the conveyance object 130 that has entered the second passage space 162 and determines the position of the conveyance object 130 that can be placed on the carry-in / out device 150. A regulation plate 181 that abuts, a drive source 182, and a plunger 183 are provided.

  The restriction plate 181 is a member that directly contacts the conveyance object 130 to restrict the entry of the conveyance object 130 and directly determines the position of the conveyance object 130 in the carry-in / out device 150. The restriction plate 181 is connected to the drive source 182 via the plunger 183, and can be moved in and out of the carry-in / out device 150 by the drive source 182.

  The drive source 182 can be accurately positioned at a predetermined position of the restriction plate 181 and is configured by, for example, a servo motor and a gear box.

  Even if the size of the conveyance object 130 that has entered through the second passage space 162 is different by the restriction device 180 described above, the restriction device 180 is controlled based on the information on the size of the conveyance object 130. It becomes possible to always arrange the conveyance object 130 at the center of the conveyance path.

  Next, the usage method of the carrying in / out apparatus 150 is demonstrated.

  FIG. 5 is a plan view schematically showing a usage mode of the carry-in / out device when carrying the conveyance object.

  As shown in FIG. 6A, when the conveyance object 130 is loaded from a direction (x direction in the figure) perpendicular to the conveyance path (y direction in the figure), the size of the conveyance object 130 is determined in advance. The computer is notified, and the computer controls the regulating device 180 to move the regulating plate 181 to a predetermined position.

  Next, as shown in FIG. 5B, the hand lift 101 is caused to enter along the second passage space 162 of the carry-in / out device 150. At this time, since the driving device 170 or the like is not exposed in the second passage space 162 and the floor surface of the second passage space 162 is flat, the handlift 101 does not interfere with anything and the handlift 101 can smoothly enter the carry-in / out device 150.

  Then, the hand lift 101 is caused to enter until the conveyance object 130 comes into contact with the restriction plate 181 of the restriction device 180. Since the restriction plate 181 protrudes so that the conveyance target 130 is located at the center of the conveyance path, the conveyance target 130 is accurately positioned at the center of the conveyance path.

  Next, the transport object 130 is placed on the conveyor 151 of the carry-in / out device 150 by lowering the placement claw of the handlift 101 with the transport object 130 placed at a predetermined position. At this stage, since the relationship between the handlift 101 and the conveyance object 130 is released, only the handlift 101 is withdrawn as shown in FIG.

  Next, as shown in FIG. 4D, the regulating plate 181 is retracted, and the motor 174 of the driving device 170 is driven. As described above, all the driving rollers 152 are rotationally driven, and the conveyance target 130 can be conveyed toward the belt conveyor 110 which is the main conveyance device.

  FIG. 6 is a plan view schematically showing a usage mode of the carry-in / out device when carrying out the conveyance object.

  As shown in FIG. 5A, the conveyance object 130 is conveyed from the belt conveyor 210 as the main conveyance device toward the carry-in / out device 150.

  Next, as shown in FIG. 5B, the driving device 170 is controlled to convey the conveyance object 130 to a predetermined position. Then, the hand lift 101 enters the carry-in / out device 150. At this time, even if the insertion hole for inserting the fork portion of the handlift 101 is provided only in one direction on the pallet arranged at the bottom of the conveyance object 130, the insertion hole is formed in the first passage space 161. If the hand lift 101 is arranged along the transport path, the hand lift 101 may pass through the first passage space 161 and enter the second passage space 162. In the case of being arranged, the hand lift 101 may pass through the second passage space 162 perpendicularly to the conveyance path.

  According to the carry-in / out device 150 according to the present embodiment, since the floor surfaces of both the first passage space 161 and the second passage space 162 are flat, it is smooth even if the handlift 101 is entered in any direction. The hand lift 101 can be moved into and out of the carry-in / out device 150.

  Finally, as shown in FIG. 5C, the carrying object 130 is lifted from the conveyor 151 by raising the placing claw of the handlift 101 that has entered the placing claw in a low state. By moving the hand lift 101 out, the conveyance object 130 is carried out.

  As described above, according to the carry-in / out device 150, the conveyance object 130 can be carried in and out from two or three directions. Therefore, if the handlift 101 is put on standby in the other direction while carrying in / out in one direction and an alternative loading / unloading is performed, two loading / unloading directions are formed for one loading / unloading device 150. In addition, since the conducting wires in the loading / unloading direction do not intersect, the loading / unloading operation can be carried out smoothly and efficiently.

  Further, even when a pallet having insertion holes provided only in one direction is loaded into the loading / unloading apparatus 150 without uniformity in direction, loading and unloading can be performed reliably.

  In addition, even when the loading claw of the carriage enters the loading / unloading device 150 during loading and unloading, there are protrusions and protrusions that inhibit the loading claw from entering the first passage space 161 and the second passage space 162. Therefore, it is possible to smoothly lift and lower the lower surface of the object 130 to be carried in and out, and to avoid accidents such as collapse of cargo.

  In the present embodiment, the conveyor is described as a roller conveyor. However, the present invention is not limited to this, and using a transport belt such as a belt conveyor or a chain conveyor, the objects are continuously separated by a predetermined distance. What is necessary is just to carry (carry).

  Moreover, although the cart provided with the loading claw has been described as a hand lift, the present invention is not limited to this, and a load such as a forklift or an automated guided vehicle is used to transfer (carry) a load with the loading claw. I just need it.

  INDUSTRIAL APPLICABILITY The present invention can be used for an interface portion between a conveyor and a carriage equipped with a loading claw at a distribution base such as a warehouse.

It is a top view which shows simply the carrying-in part of an automatic warehouse, and a carrying-out part. It is a top view which shows a carrying in / out apparatus. It is a figure which shows a carrying in / out apparatus, (a) is the top view which mainly showed the driving force transmission apparatus, (b) is a side view which shows a carrying in / out apparatus. It is a side view which shows the relationship between a carrying in / out apparatus and a trolley | bogie (mounting claw). It is a top view which shows typically the usage condition of the carrying in / out apparatus at the time of carrying in a conveyance target object. It is a top view which shows typically the usage condition of the carrying in / out apparatus at the time of carrying out a conveyance target object.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Carry-in part 101 Hand lift 110 Belt conveyor 130 Conveyed object 150 Carry-in / out device 151 Conveyor 152 Drive roller 153 Free roller 154 Transmission roller 161 First passage space 162 Second passage space 170 Drive device 171 Normal transmission device 172 Lower transmission device 173 Drive shaft 174 Motor 175 Avoid shaft 180 Restriction device 181 Restriction plate 182 Drive source 183 Plunger 200 Unloading section 210 Belt conveyor

Claims (4)

A transport object connected to the end of the main transport device and transported by the main transport device is received from a cart equipped with a placement claw or sent to a cart equipped with a placement claw to reach the main transport device A loading / unloading device having a conveyor forming a path,
A first passing space provided along the transport path of the conveyor, through which the carriage mounting claws pass;
A second passage space provided so as to intersect the transport path of the conveyor, through which the carriage mounting claws pass,
The conveyor is a loading / unloading device that is disposed with the first passage space interposed therebetween and is disposed with the second passage space interposed therebetween. further,
The loading / unloading device according to claim 1, further comprising a lower transmission device that is disposed below the second passage space and that transmits a driving force from one of the conveyors disposed across the second passage space to the other. further,
3. A transmission conveyor disposed between one end of the first passage space on the side of the main transfer device side and disposed across the first passage space from one conveyor to the other. The loading / unloading device described. further,
The loading / unloading device according to any one of claims 1 to 3, further comprising a regulating device that regulates the position of the conveyance object so as to be variable above one end of the second passage space.

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