JP2012193003A - Stacker crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stacker crane in which the support structure of a support is simplified.SOLUTION: A lower frame body 9 includes traveling wheels W that freely travel along traveling rails 7, at both front and rear ends of the frame body 9. The lower frame body 9 is configured in such a manner that: plate-like mount plates 9F, 9R having postures along the vehicle lateral width direction and along the vertical direction are welded to at least one of the front and rear ends of a main frame 9M with long shape along the vehicle front and rear direction; and wheel support frames 13F, 13R for supporting the traveling wheels W are bolt-connected to the mount plates 9F, 9R, respectively. Plate-like auxiliary frames 20F, 20R having postures along the vehicle front and rear direction and along the vertical direction are welded to the lateral side faces of the main frame 9M while projecting over the main frame 9M, and the support 10 are bolt-connected to the auxiliary frames 20F, 20R and the mount plates 9F, 9R respectively while the lower end-side outer surface of the support 10 abuts on the auxiliary frames 20F, 20R and the mount plates 9F, 9R respectively. Placing portions 21F, 21R for receiving and supporting the lower end of the support 10 are provided on at least one of the auxiliary frames 20F, 20R and the mount plates 9F, 9R.

Description

  The present invention relates to a lower frame body having traveling wheels that can travel along a traveling rail at both front and rear ends, a support column erected from the lower frame body, and a lift platform that is guided up and down by the support column. A plate-shaped mounting plate in a posture along the vehicle body width direction and the vertical direction at least at one of the front and rear ends of the elongated main frame along the vehicle body longitudinal direction. A wheel support frame that is welded in a state of projecting upward and laterally from the main frame, and that supports the traveling wheel located on the side where the mounting plate is present among the front and rear traveling wheels, is bolted to the mounting plate. The present invention relates to a stacker crane configured to be coupled.

  Such a stacker crane is generally installed so that a storage unit for storing articles travels along the front side of an article storage shelf provided vertically and horizontally, and a storage operation for storing articles in the storage unit of the article storage shelf And the unloading work which takes out the articles stored in the storage unit is performed.

As a conventional example of a stacker crane, as shown in FIG. 17, a plate-like shape for supporting a column 101 on an upper surface portion near an end portion to which a mounting plate 100 </ b> B in a main frame 100 </ b> A constituting a lower frame 100 is welded. In some cases, the support body 102 is provided in a horizontal posture, and the connection plate 103 attached to the lower end of the support column 101 is bolted to the support body 102 so that the support column 101 is erected from the lower frame body 100. (For example, refer to Patent Document 1).
A connecting frame 103A having an L shape in plan view is welded in an upright state to the upper surface portion of the connection plate 103, and the support column 101 is supported by receiving the lower end surface of the connection plate 103, and the outer surface portion of the connection plate 103 is supported. The bolt is connected to the connection frame 103A in a state of being applied to the connection frame 103A.

  Incidentally, the stacker crane of Patent Document 1 includes a mounting plate 100 </ b> B only at the front and rear end portions of the lower frame body 100, and one support column 101 is configured to stand from the lower frame body 100. .

JP 2009-269931 A

  In the stacker crane of the conventional example, the connection plate attached to the lower end of the support column is connected and supported by the support attached to the main frame of the lower frame, and the support column is connected to the connection plate and the connection plate welded to the connection plate. As a result, the support column is supported by the lower frame body.

  In such a structure, the stress is easily concentrated on the connecting portion between the connection plate attached to the lower end of the support and the support attached to the main frame of the lower frame, so that the support and the connection plate have sufficient strength. In addition to creating a state in which the support is provided, it is necessary to connect the support body to a state in which the support has sufficient strength with respect to the main frame.

  In addition, since a large load is applied to the connection frame that is welded to the upper surface portion of the connection plate in a standing posture, a large load acts on the connection plate between the connection plate and the connection frame. Stress will act. Therefore, it is necessary to connect the connection frame to the connection plate so as to have sufficient strength.

  That is, in the conventional stacker crane, it is necessary to connect the support body with sufficient strength to the main frame, and it is necessary to connect the connecting frame with sufficient strength to the connection plate. Because of this, the support structure of the support becomes complicated, and improvement is desired.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a stacker crane capable of simplifying the support structure of the column.

The stacker crane according to the present invention is guided by a lower frame provided with traveling wheels at both front and rear ends that can travel along a traveling rail, a column erected from the lower frame, and a column that can be raised and lowered by the column. And a lifting platform,
The lower frame has a plate-like mounting plate in a posture along the vehicle body width direction and the vertical direction at least one of the front and rear ends of the long main frame along the vehicle body longitudinal direction. And a wheel support frame for supporting the traveling wheel located on the side where the mounting plate is present among the front and rear traveling wheels, which are welded in a state of projecting sideways, and configured to be bolted to the mounting plate. The first characteristic configuration is
A plate-like auxiliary frame in a posture along the longitudinal direction of the vehicle body and the vertical direction is welded to the lateral side surface of the end portion on the side of the main frame where the mounting plate exists, in a state of protruding above the main frame,
The column is bolted to the auxiliary frame and the mounting plate with the outer surface of the lower end side applied to the auxiliary frame and the mounting plate,
At least one of the auxiliary frame or the mounting plate is provided with a mounting portion that receives and supports the lower end of the support column.

That is, the column is bolted to the auxiliary frame and the mounting plate with the outer surface of the lower end side applied to the auxiliary frame and the mounting plate, and in addition, the lower end of the column is connected to at least one of the auxiliary frame and the mounting plate. It is received and supported by the provided mounting portion.
Thus, the lower end is received and supported by the mounting portion provided on at least one of the auxiliary frame or the mounting plate, and the outer wall portion is connected to and supported by the auxiliary frame and the mounting plate. The upright column is in a state in which the position in the vertical direction is appropriately regulated, and the inclination in the longitudinal direction of the vehicle body and the lateral width direction of the vehicle body is appropriately suppressed.

  Further, since the mounting plate provided for bolting the wheel support frame is used as a part of the support member of the support when the support is erected, the support structure of the support is simplified. be able to.

  In addition, although an auxiliary frame is provided to support the support column, the auxiliary frame is welded to the lateral side surface of the main frame, and the auxiliary frame is used while using the lateral side surface of the main frame as a connection surface of the auxiliary frame. Since the frame can be welded, the auxiliary frame welded to the main frame is reinforced by the main frame, so that the auxiliary frame can have sufficient strength. That is, even if the strength of the auxiliary frame itself is reduced to simplify the auxiliary frame, the auxiliary frame can be provided with sufficient strength.

  In addition, the mounting portion provided on at least one of the auxiliary frame or the mounting plate has the lower end of the column bolted to the auxiliary frame and the mounting plate in a state where the outer surface on the lower end side is applied to the auxiliary frame and the mounting plate. It is intended to receive and support, in other words, to support the lower end of the column that is bolted to the auxiliary frame and the mounting plate and whose position is regulated in the horizontal direction. Instead of a large member, it can be configured by a small member that receives a part of the lower end of the column. That is, even if the mounting portion is configured by a small member and the mounting portion is simplified, the lower end of the support can be appropriately received and supported by the mounting portion.

  Therefore, since the mounting plate provided for bolt connection of the wheel support frame is used as a part of the support member of the support when the support is erected, the support structure of the support is simplified. In addition, although an auxiliary frame is provided to support the column, the strength of the auxiliary frame itself can be reduced to simplify the auxiliary frame, and the column can be received and supported. In order to do so, the mounting portion is provided, but the mounting portion can be configured with a small member so that the mounting portion can be simplified. Can be achieved.

  In short, according to the first characteristic configuration of the present invention, it is possible to provide a stacker crane capable of simplifying the support structure of the column.

In addition to the first feature configuration, the second feature configuration of the stacker crane of the present invention,
The mounting portion is a shaft-shaped member that mounts a peripheral edge portion on a lower end surface of the support column.

  That is, since the placing portion is a shaft-like member for placing the peripheral portion on the lower end surface of the support column, the support structure for the support column can be further simplified by configuring the placement unit with a simple shaft-shaped member. Can be achieved.

  In other words, since the mounting portion receives and supports the lower end of the support column that is bolted to the auxiliary frame and the mounting plate and whose position is regulated in the horizontal direction, it is not necessary to receive the entire lower end of the support column, In view of the point that a part of the lower end of the column only needs to be received, the configuration of the mounting unit is simplified by configuring the mounting unit with a shaft-like member that mounts the peripheral edge of the lower end surface of the column. Is intended.

  In short, according to the second characteristic configuration of the present invention, it is possible to provide a stacker crane capable of further simplifying the support structure of the column in addition to the operational effects of the first characteristic configuration.

In addition to the first or second feature configuration, the third feature configuration of the stacker crane of the present invention,
The auxiliary frame is formed in an L shape having a front and rear plate portion along the vehicle body longitudinal direction and an upper plate portion extending upward from one end portion of the mounting plate on the front and rear plate portions in the vehicle body width direction. It is characterized by that.

  That is, the auxiliary frame is formed in an L shape having a front and rear plate portion along the vehicle body longitudinal direction and an upper plate portion extending upward from one end portion on the side where the mounting plate is present in the front and rear plate portion when viewed in the lateral direction of the vehicle body. Therefore, since the strength of the auxiliary frame can be improved by welding the front and rear plate portions along the longitudinal direction of the vehicle body to the lateral side surface of the main frame of the lower frame, the support strength of the support column is improved. be able to.

  That is, the auxiliary frame is reinforced by the main frame by being welded to the lateral side surface of the main frame, but the auxiliary frame is provided with front and rear plate portions along the longitudinal direction of the vehicle body. By welding the plate portion to the lateral side surface of the main frame, the auxiliary frame can be sufficiently reinforced by the main frame, and as a result, the support strength of the support can be improved.

  In short, according to the third characteristic configuration of the present invention, it is possible to provide a stacker crane capable of improving the support strength of the column in addition to the operational effects of the first or second characteristic configuration.

In addition to any of the first to third feature configurations described above, the fourth feature configuration of the stacker crane of the present invention is as follows.
The mounting plates are provided at both front and rear ends of the main frame, and each of the front and rear wheel support frames that support the front and rear traveling wheels is bolted to the mounting plate,
As the column, a pair of front and rear columns is provided,
The auxiliary frame and the mounting portion are provided corresponding to each of the pair of front and rear columns.

  That is, a pair of front and rear columns is provided as a column, and each of the pair of front and rear columns is bolted to the auxiliary frame and the mounting plate with the outer surface of the lower end side applied to the auxiliary frame and the mounting plate. In addition, the lower end of the column is received and supported by the mounting portion provided on at least one of the auxiliary frame or the mounting plate.

  In this way, the pair of front and rear support columns are provided, and the lift table can be guided up and down by the pair of front and rear columns, so that the lift table can be accurately guided to a proper posture.

  In short, according to the fourth feature configuration of the present invention, in addition to the operational effects of any of the first to third feature configurations, a stacker crane that can accurately guide the lifting platform to a state where it is in an appropriate posture. Can be provided.

The fifth feature configuration of the stacker crane of the present invention is in addition to any of the first to fourth feature configurations described above,
The lifting platform is provided in a state of extending from the support column to one side of the vehicle body width direction.

  That is, since the lifting platform is provided in a state extending from the support column to one side in the vehicle body width direction, the column that guides the lifting table has a large force in the vehicle body width direction and in the direction in which the lifting table extends. However, since the support column is connected to the auxiliary frame, it is possible to accurately suppress the support column from tilting in the vehicle body width direction and the lifting platform extending direction.

  That is, since the auxiliary frame is provided in a state of projecting above the main frame in the lower frame, the support frame can be accurately supported by the auxiliary frame in a state in which the support column is prevented from falling in the vehicle width direction.

Therefore, even if the lifting platform is provided in a state extending from the support column to one side in the vehicle body width direction, the support platform can be guided as appropriate because the support column is prevented from falling.
By the way, the case where the lifting platform is provided in a state extending from the column to one side in the vehicle body width direction means that, for example, the stacker crane is viewed in the traveling direction of the stacker crane, and the left and right stacker cranes are arranged on both the left and right sides. The case where it installs in the state which leaves | separates and it comprises so that a right and left stacker crane can pass each other can be considered.

  In short, according to the fifth characteristic configuration of the present invention, it is possible to provide a stacker crane capable of further reducing the cost of the lower frame in addition to the operational effects of any of the first to fourth characteristic configurations.

Outline plane of automatic warehouse Front view showing the moving passage part of the warehouse Side view of stacker crane Side view of the lower part of the stacker crane The perspective view which shows the attachment part of the front support | pillar in a lower frame Exploded perspective view showing mounting structure of wheel support frame Transverse plan view showing the support structure of the platform Front view showing the structure Side view showing the structure Side view showing the structure Side view showing the mounting part of the upper frame Plan view showing the same part The top view which shows the attachment part to the support | pillar of the front side of an upper frame Partially cutaway front view showing the same part Exploded perspective view showing the same part Exploded perspective view showing the same part Exploded perspective view showing conventional structure

Next, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1 and FIG. 2, a pair of left and right storage shelves 1 that are installed at an interval in a state in which the article loading / unloading direction is opposed to each other and a moving passage 2 that is formed between the pair of left and right storage shelves 1 are stored. A pair of left and right stacker cranes K that can move along the width direction of the shelf 1, and a loading / unloading unit that supports the article B that enters the storage shelf 1 and the article B that comes out of the storage shelf 1 at both ends of the movement path 2. 3 and a pair of left and right stacker cranes K to store the articles B transported to the storage / removal section 3 in the storage shelf 1 and to store / restore the articles B stored in the storage rack 1. The automatic warehouse which performs the delivery work taken out to 3 is comprised.

As shown in FIGS. 1 and 2, each of the pair of left and right storage shelves 1 includes a pair of columns 4 a and 4 b that are erected at intervals in the longitudinal direction of the shelf. The column supports adjacent to each other in the shelf width direction in the plurality of column groups are connected by the shelf board 5 at a plurality of positions in the vertical direction, and the articles are stored between the column groups adjacent in the shelf width direction. The portion 6 is configured to be formed.
And it is comprised so that the goods B may be mounted and accommodated in the goods storage part 6 in the state which protrudes from the shelf board 5 to the movement path 2 side.

  As shown in FIG. 1, the loading / unloading unit 3 includes a pair of article placement beams 3 a arranged at intervals in the left-right direction of the shelf, and moves the article B from the pair of left and right article placement beams 3 a to the moving path 2. It is configured to be placed and supported by a pair of article placement beams 3a in a state of projecting to the side.

  As shown in FIGS. 1 to 3, a pair of left and right traveling rails 7 having a cross-sectional shape of the letter “E” are formed on the floor portion of the moving passage 2 so as to correspond to the pair of left and right stacker cranes K, respectively. 2 is installed along the longitudinal direction of the moving passage 2 in a state of being positioned at both ends in the lateral width direction, and a pair of left and right upper guides having a rectangular cross-sectional shape is formed on the ceiling side portion of the moving passage 2. The rails 8 are installed along the longitudinal direction of the moving passage 2 in a state where the rails 8 are positioned at both ends in the lateral width direction of the moving passage 2 so as to correspond to the pair of left and right stacker cranes K, respectively.

  In order for each of the pair of left and right stacker cranes K to travel along the movement path 2 while being guided by the travel rail 7 and the upper guide rail 8, the storage rack It is comprised so that it may move to the 1 article | item storage part 6 and the storage / exit part 3. FIG.

The left and right stacker cranes K are configured to have the same specifications, and the left stacker crane KL and the right stacker crane KR are installed in a state in which the front-rear direction is reversed.
Further, as shown in FIG. 2, the left stacker crane KL and the right stacker crane KR can travel in a passing form, and details thereof will be described later.
By the way, in the present embodiment, the case where the left stacker crane KL and the right stacker crane KR are installed one by one is illustrated, but the left stacker crane KL and the right stacker crane KR are installed one by one. You may implement with a form.
In the following description, when it is not necessary to distinguish the left stacker crane KL from the right stacker crane KR, they are simply referred to as the stacker crane K.

As shown in FIGS. 2 to 4, the stacker crane K includes a lower frame 9 having traveling wheels W that can travel along the traveling rail 7 at both front and rear ends, and both front and rear ends of the lower frame 9. It is provided with a pair of front and rear columns 10 that are erected, an upper frame 11 that connects the upper ends of the pair of front and rear columns 10, and a lifting platform 12 that is guided by the pair of front and rear columns 10 so as to be movable up and down. The lifting platform 12 is equipped with a belt conveyance type article transfer device V.
Incidentally, since the column 10 of the stacker crane K is located at one end of the moving passage 2 in the width direction, the lifting platform 12 protrudes from the column 10 toward the other end of the moving passage 2 in the width direction. Is provided.

In this embodiment, the traveling wheels W provided before and after the lower frame body 9 are a driving wheel Wf driven by a traveling electric motor M1 and a free-wheeling free-wheeling wheel Wr. The idle wheel Wr is configured to travel in contact with the upper surface of the traveling rail 7.
Incidentally, in the following description, the side on which the drive wheel Wf is equipped will be described as the vehicle body front side of the stacker crane K, and the side on which the idle wheel Wr is installed will be described as the vehicle body rear side of the stacker crane K.
Accordingly, the pair of front and rear support columns 10 are composed of a front support column 10F positioned on the front side of the vehicle body and a rear support column 10R positioned on the rear side of the vehicle body. When it is not necessary to distinguish the post 10 </ b> F from the rear post 10 </ b> R, it is simply referred to as the post 10.

The lower frame 9 will be described. As shown in FIGS. 4 to 6, a long main frame 9M is provided along the longitudinal direction of the vehicle body. The plate-like mounting plates 9F and 9R in a posture along the direction are welded so as to protrude upward and laterally from the main frame 9M.
The front mounting plate 9F attached to the front end portion of the main frame 9M and the rear mounting plate 9R attached to the rear end portion of the main frame 9M have an inverted U shape when viewed in the front-rear direction. It is comprised in the shape provided with the part to present and the part which protrudes upwards from the one end side of the left-right direction of the part.

  Then, as clearly shown in FIG. 6, the rear end portion of the front wheel support frame 13F that supports the drive wheel Wf is bolted to the front mounting plate 9F, and the rear side portion that supports the idle wheel Wr. The front end portion of the wheel support frame 13R is bolted to the rear mounting plate 9R.

  As shown in FIG. 4, the front wheel support frame 13 </ b> F has a lower surface side with respect to the upper flange portion 7 a (see FIG. 2) in the traveling rail 7 in order to restrict the lift of the driving wheel Wf from the traveling rail 7. The restricting wheel 14 for lifting control that abuts from the side, and the restricting wheel for restricting lateral movement that contacts the lateral side surface of the traveling rail 7 in order to restrict the lateral movement of the driving wheel Wf with respect to the traveling rail 7. Body 15 is equipped.

  As shown in FIG. 4, as with the front wheel support frame 13F, the rear wheel support frame 13R has an upper flange on the travel rail 7 in order to restrict the floating wheel Wr from rising from the travel rail 7. In order to restrict the movement of the traveling rail 7 to the lateral side with respect to the traveling rail 7 with respect to the traveling rail 7 and the restricting wheel body 16 for lifting control that abuts against the portion 7a (see FIG. 2) from the lower surface side. A restricting wheel body 17 for restricting lateral movement that contacts the side surface is provided.

As shown in FIG. 2, the traveling electric motor M1 that drives the drive wheel Wf is attached to the front wheel support frame 12F in a state of being located on the lateral side of the drive wheel Wf.
The wheel support frame 12F on the front side is manufactured by casting, and an auxiliary support frame 18 for attaching an elevating electric motor M2 as an elevating drive device for the elevating platform 12 is bolted to the upper part thereof. (See FIG. 4).

  Further, as shown in FIGS. 1 and 4, a control box H equipped with a controller for controlling the operation of the stacker crane K is provided at the front portion of the wheel support frame 12F on the front side. It is equipped in a state of being connected and supported by the frame 18, and by operating the electric motor M1 for traveling and the electric motor M2 for raising and lowering according to a command from the controller equipped in the control box H, The raising / lowering operation of the raising / lowering stand 12 is comprised.

  As shown in FIGS. 2 and 4, a current collector 19 </ b> B that is in contact with the power supply rail 19 </ b> A installed along the traveling rail 7 is provided on the side of the main frame 9 </ b> M of the lower frame 9. Thus, the power from the current collector 19B is used as power for operating the controller and power for driving the electric motor M1 for traveling and the electric motor M2 for raising and lowering.

Next, a structure in which the support column 10, that is, the front and rear support columns 10F and 10R are erected from the lower frame body 9 will be described.
As shown in FIGS. 4 to 6, the front and rear direction of the vehicle body and the up and down direction are provided on the lateral side surfaces on the right side of the front and rear ends where the front mounting plate 9F and the rear mounting plate 9R are present in the main frame 9M. The plate-like auxiliary frames 20F and 20R in a posture along the direction are welded so as to protrude above the main frame 9M. The auxiliary frames 20F and 20R are equipped with a column plate tapping plate 20T.

Further, a mounting portion 21F that receives and supports the lower end of the front support column 10F is provided on the front auxiliary frame 20F.
The front column 10F is bolted to the front auxiliary frame 20F and the front mounting plate 9F in a state where the outer surface of the lower end side is applied to the front auxiliary frame 20F and the front mounting plate 9F. It is connected and is held by the front side auxiliary frame 20F and the front side mounting plate 9F in a state where its lower end portion is placed and supported by the placing portion 21F (FIG. 4). reference).

The rear auxiliary frame 20R is provided with a mounting portion 21R that receives and supports the lower end of the rear column 10R.
Then, the rear column 10R is bolted to the rear auxiliary frame 20R and the rear mounting plate 9R in a state where the outer surface of the lower end is applied to the rear auxiliary frame 20R and the rear mounting plate 9R. In a state where the lower end portion is connected and received and supported by the mounting portion 21R, the auxiliary frame 20R on the rear side and the mounting plate 9R on the rear side are held (FIG. 4). reference).

As shown in FIGS. 5 and 6, the mounting portion 21 </ b> F that receives and supports the front column 10 </ b> F and the mounting portion 21 </ b> R that receives and supports the rear column 10 </ b> R are shaft-shaped members having a square cross section as shown in FIGS. 5 and 6. It is formed and is configured to place a peripheral edge portion on the lower end surface of the front column 10F and the rear column 10R.
Incidentally, the mounting portions 21F and 21R formed by the shaft-shaped member are moved downward to a receiving body 21U having a L-shaped cross section welded to the auxiliary frame 20F on the front side and the auxiliary frame 20R on the rear side. It is bolted in a state where it is received and supported so as to be prevented.

As shown in FIGS. 4 and 5, the front auxiliary frame 20 </ b> F is the side where the front side mounting plate 9 </ b> F exists on the front and rear plate portions along the front and rear direction of the vehicle body when viewed from the lateral direction of the vehicle body. It is formed in an L shape having an upper plate portion extending upward from the front end portion.
That is, the auxiliary frame 20F on the front side is configured to be connected to the main frame 9M in a state having sufficient strength by providing the front and rear plate portions to increase the connecting portion to the main frame 9M. .

  Similarly, as shown in FIGS. 4 and 6, the rear auxiliary frame 20 </ b> R has the front and rear plate portions along the vehicle body longitudinal direction and the presence of the rear mounting plate 9 </ b> R in the front and rear plate portions as seen in the vehicle body lateral direction. It is formed in an L shape having an upper plate portion extending upward from the rear end portion on the side, and the connecting portion with respect to the main frame 9M is enlarged by providing the front and rear plate portions, and sufficient strength with respect to the main frame 9M. It is comprised so that it may be connected in the state provided with.

As shown in FIGS. 7 and 15, the support pillars 10, that is, the front and rear support pillars 10 </ b> F and 10 </ b> R are configured to have the same specifications, and are vertically inverted between the front support pillar 10 </ b> F and the rear support pillar 10 </ b> R. And is erected from the lower frame body 9.
That is, the support column 10 is formed by extruding an aluminum material, and the cross-sectional shape is a rectangular shape in which the width along the horizontal width direction of the moving passage 2 is smaller than the width along the longitudinal direction of the moving passage 2. It is formed in a cylindrical shape, and is formed in a state in which a reinforcing wall portion exists inside.

  Of the side surfaces of the support column 10 located on both sides in the vehicle body width direction, the other member mounting recess U1 is formed on the surface corresponding to the side from which the lifting platform 2 protrudes. Of the side surfaces located at the side, a surface corresponding to the inner side of the vehicle body is formed with a recessed and raised guide recessed portion U2 for guiding the lifting platform 12 so as to be movable up and down.

As shown in FIG. 7, a feeding rail 23 that contacts the current collector 22 mounted on the lifting platform 12 is disposed in the other member mounting recess U <b> 1 of the front column 10 </ b> F, and the rear column 10 </ b> R. The other member mounting recess U1 is provided with a position indicator 25 on which a photo-interrupter-type position detection sensor 24 provided on the lifting platform 12 detects. Incidentally, the position indicator 25 is disposed at a position indicating that the lifting position of the lifting platform 12 is the upper limit or the lower limit of the lifting range of the lifting platform 12, for example.
In addition, the usage form of the recessed part U2 for raising / lowering guidance is mentioned later.

As shown in FIGS. 1 and 2, as described above, the strut 10 of the stacker crane K is located at one end in the width direction of the moving passage 2, and the lifting platform 12 is the other end in the width direction of the moving passage 2. It is provided in a state protruding from the column 10 toward the section side.
That is, the stacker crane K is equipped with the lifting platform 12 in a state of extending from the support column 10 toward the left side of the vehicle body width direction.
That is, the stacker crane K is disposed in a state of being close to the storage shelf 1 located on the right side thereof, and the lifting platform 12 is provided in a state of extending leftward from the support column 10 of the stacker crane K. ing.

As shown in FIG. 2, when viewed from the longitudinal direction of the movement path 2, the tip of the lifting platform 12 is formed in a state that does not interfere with the column 10 of the stacker crane K on the other side. When the stacker cranes KL and KR pass each other, the lifting platform 12 provided to the left and right stacker cranes KL and KR is configured not to interfere with the strut 10 of the counterpart stacker crane.
By the way, when the left and right stacker cranes KL and KR pass each other, as shown in FIG. 2, the height of the lifting platform 12 provided on the left and right stacker cranes KL and KR is made different, so Thus, it is possible to avoid the elevators 12 equipped in the above-mentioned manner from interfering with each other.

The lifting platform 12 is guided so as to be movable up and down by using a lifting guide recess U2 in the front column 10F and the rear column 10R, and the configuration thereof will be described below.
That is, as shown in FIGS. 8 and 9, the lifting platform 12 includes a pair of upper and lower front and rear position regulating rollers 26 </ b> F corresponding to the recessed and raised guide recessed portion U <b> 2 of the front column 10 </ b> F, and As shown in FIGS. 8 and 10, one front / rear position restricting roller 26 </ b> F is provided corresponding to the up / down guide recessed part U <b> 2 of the rear column 10 </ b> R. The position of the lifting platform 12 in the longitudinal direction with respect to the support column 10 is regulated by the action of the 26R contacting the bottom of the lifting guide recessed portion U2.

Further, as shown in FIGS. 8 to 10, the lifting platform 12 has four left and right position restrictions arranged in the vertical direction corresponding to the lifting guide recesses U <b> 2 of the front column 10 </ b> F and the rear column 10 </ b> R. Rollers 27-30 are provided.
Of the four left and right position regulating rollers 27 to 30, the first roller 27 located at the uppermost position and the third roller 29 third from the top are provided in the elevation guide recess U <b> 2 as viewed in the longitudinal direction of the vehicle body. The fourth roller 30 that is in contact with the surface corresponding to the projecting side of the lifting platform 12 and that is the lowermost of the four left and right position regulating rollers 27 to 30 and the second one from the top. The two rollers 28 come into contact with a surface corresponding to the side opposite to the protruding side of the lifting platform 12 in the lifting guide recessed portion U2 in the longitudinal direction of the vehicle body, and these first to fourth rollers. The position of the lifting platform 12 in the lateral direction of the vehicle body is described by the action of 27 to 30 coming into contact with the lifting guide recessed portion U2.

  Incidentally, the first roller 27 and the fourth roller 30 are formed to have a larger diameter than the second roller 28 and the third roller 29 and are provided in a fixed state, and have a smaller diameter than the first roller 27 and the fourth roller 30. The second roller 28 and the third roller 29 are configured so that the positions in the vehicle body width direction can be finely adjusted so that the first to fourth rollers 27 to 30 are in a predetermined contact state.

As shown in FIGS. 11 to 14, the upper frame 11 that connects the upper ends of the pair of front and rear columns 10 </ b> F and 10 </ b> R is applied to the lateral side surface of the pair of front and rear columns 10 </ b> F and 10 </ b> R, that is, the left side surface. Has been placed.
When the description is added, the upper frame 11 is formed in a state in which the connecting plate-like bodies 11F and 11R to the support column 10 are welded to the front and rear end portions of each cylindrical main body 11M, and the connecting plate-like bodies 11F, 11R is bolted to the front and rear columns 10F, 10R.
A rib-shaped reinforcing body 11H is welded between the main body 11M and the connecting plate-like bodies 11F and 11R (see FIGS. 15 and 16).

Then, as shown in FIG. 12, a locking body 11K that locks the upper end surfaces of the front and rear support columns 10F and 10R is bolted to the front and rear connecting plate states 11F and 11R. In order to suspend and support the frame, even if a downward force is applied to the upper frame 11, the downward movement of the upper frame 11 relative to the front and rear columns 10F and 10R is suppressed (see FIG. 15). .
Incidentally, a receiving plate 11U that receives and supports the upper portion of the locking body 11K is welded to the front and rear connecting plate states 11F and 11R (see FIGS. 14 and 15).

  Also, as shown in FIG. 12, a pair of front and rear guide roller support frames 31F and 31R are bolted to the side of the upper frame 11 opposite to the side where the support column 10 is present, and the pair of front and rear guide roller supports. A pair of left and right guide rollers 32F and 32R that are in contact with the left and right side surfaces of the upper guide rail 8 are supported on the frames 31F and 31R (see FIG. 15).

Next, the structure which raises / lowers the raising / lowering stand 12 is demonstrated.
As shown in FIGS. 3 and 4, an elevating chain 33 is provided as a cord-like body that suspends and supports the elevating platform 12. Specifically, a pair of elevating chains 33F and 33R connected to the front and rear end portions of the elevating platform 12 are provided as the elevating chain 33 and attached to the auxiliary support frame 18 attached to the wheel support frame 13F of the drive wheel Wf. The equipped lifting electric motor M2 is equipped with a pair of left and right drive sprockets 34 as a cord-like body driving means (see FIG. 2).

  And as shown in FIG. 12, a pair of raising / lowering chains 33F and 33R which suspend and support the raising / lowering base 12 are vehicle body width direction in the width along the vehicle body width direction of a pair of front and rear columns 10F and 10R in plan view. And an elevating chain 33R connected to the side opposite to the side where the drive sprocket 34 is present in the elevating platform 12 is provided close to the upper frame 11.

As shown in FIG. 12 and FIG. 13, in the pair of front and rear support columns 10F and 10R, the portion corresponding to the outer side in the vehicle body front-rear direction in the front support column 10F located on the drive sprocket 34 side is formed like a cord. As a guide body Q for guiding the body, a first guide body 35 located on the upper frame 11 side and a second guide body 36 located on the side away from the upper frame 11 are provided in a state of being arranged in the lateral direction of the vehicle body. ing.
Further, of the pair of front and rear columns 10F and 10R, as a guide body that guides the cord-like body to a position corresponding to the vehicle longitudinal direction inner side in the front column 10F located on the drive sprocket 34 existing side, The 3rd guide body 37 is provided in the state located in the same position as the 2nd guide body 36 in the vehicle body width direction.
That is, the 1st-3rd guide bodies 35-37 are attached to the upper end part of the support | pillar 10F of the front side, and are comprised using the sprocket.

  As shown in FIGS. 3, 11, and 12, of the pair of lifting chains 33 </ b> F and 33 </ b> R, the lifting chain 33 </ b> R located on the upper frame 11 side is extended upward from the connection position with respect to the lifting platform 12. After that, the first guide body 35 is guided toward the first guide body 35 by the auxiliary guide body 38 rotatably supported by the upper frame 11, and thereafter, the first guide body 35 is guided downward to drive the sprocket. It is arranged to extend toward 34. The auxiliary guide body 38 is configured using a sprocket.

  As shown in FIGS. 3, 11, and 12, of the pair of elevating chains 33 </ b> F and 33 </ b> R, the elevating chain 33 </ b> F located on the side away from the upper frame 11 is directed upward from the connection location with respect to the elevating platform 12. After being extended, it is guided toward the second guide body 36 by the third guide body 37 and then guided downward by the second guide body 36 so as to extend toward the drive sprocket 34. Are arranged.

As shown in FIGS. 2 and 4, the pair of left and right drive sprockets 34 is formed by winding the first to third guide bodies 35 to 37 in the pair of elevating chains 33 </ b> F and 33 </ b> R and extending portions extending downward. It will move in the direction.
The pair of elevating chains 33F and 33R are wound around the pair of left and right drive sprockets 34, and then are arranged in the first relay sprocket 39A supported by the auxiliary support frame 18 and supported by the lower frame 9 side by side in the front-rear direction. The second and third relay sprockets 39 </ b> B and 39 </ b> C are arranged so as to be wound around and connected to the bottom of the lifting platform 12. The first to third relay sprockets 39A to 39C are mounted side by side in the same manner as the drive sprocket 34 so as to correspond to the pair of lifting chains 33F and 33R.

  Therefore, the lifting platform 12 can be driven up and down by rotationally driving the right and left drive sprockets 34 in the forward and reverse directions by the lifting electric motor M2.

Next, a support structure for the first to third guide bodies 35 to 37 and the auxiliary guide body 38 will be described.
That is, as shown in FIGS. 15 and 16, the first and second guide bodies 35 and 36 are supported as a support frame R that rotatably supports the guide body Q and is bolted to the side wall portion of the column 10. A first support frame R1 and a second support frame R2 for supporting the third guide body 37 are provided.

The first support frame R1 is bolted to the side wall portion of the front column 10F located on the drive sprocket 34 side of the pair of front and rear columns 10F and 10R, that is, to the side wall portion on the outer side in the vehicle longitudinal direction. A locking portion S that is connected and locks the upper end surface of the support column 10F on the front side is provided.
That is, the first support frame R1 includes a main frame 40 having a U-shape in plan view and a strip-shaped subframe 41 for forming the locking portion S.
The main frame 40 includes a pair of left and right side frame portions 40a and a connection frame portion 40b that connects lower end side portions of the side frame portions 40a, and an upper portion of the left and right side frame portions 40a is located above the connection frame portion 40b. A notch is formed in a recessed shape, and a subframe 41 is connected to the lower surface of the notched portion by welding.

  A guide body support shaft 42 is supported on the main frame 40 in a state of being laid between a pair of left and right side frame portions 40a, and the first and second guide bodies 35 and 36 are bearings on the guide body support shaft 42. (See FIG. 13).

The second support frame R2 is opposite to the side where the upper frame 11 is present in the lateral direction of the vehicle body as the side wall portion of the front column 10F located on the drive sprocket 34 side of the pair of front and rear columns 10F, 10R. A locking portion S that is bolted to the side wall portion located on the side and that locks the upper end surface of the front column 10F is provided.
That is, the second support frame R <b> 2 includes a plate-shaped main frame 43 and each shaft-shaped sub-frame 44 for forming the locking portion S, and the sub-frame 44 is bolted to the main frame 43. ing. The main frame 43 is formed with a recessed groove that engages with the sub-frame 44, and the sub-frame 44 is bolted to the main frame 43 in a state of being engaged with the recessed groove (FIG. 16). reference).

  A guide body support shaft 45 is cantilevered by the main frame 43, and a third guide body 37 is rotatably supported by the guide body support shaft 45 via a bearing (see FIG. 13).

  As shown in FIG. 12, a guide body support shaft 46 is supported in a cantilever manner in a state where it is supported by the main body 11M and the connecting plate-like body 11R at the rear end side portion of the upper frame 11, and the guide body. An auxiliary guide body 38 is rotatably supported on the support shaft 46 via a bearing.

As described above, the article transfer device V is a belt conveyance type in the present embodiment, but various types such as a placement conveyance type using a retractable article placement table can be used.
When the article transfer device V is configured as a belt conveyance type, the article transfer device V is equipped on both sides in the vehicle body width direction so as to be adjustable.
When the stacker crane K is run, the article transfer device V is positioned at an intermediate position in the vehicle body width direction, but the article B is placed on the storage shelf 1 located on the left side in the vehicle body width direction. In the case of transferring, the article transfer device V is protruded from the intermediate position to the left protruding position, and when the article B is transferred to the storage shelf 1 located on the right side in the vehicle body width direction, The transfer device V is projected from the intermediate position to the protruding position in the right direction.

  Incidentally, although not described in detail in the description of the present embodiment, a traveling position detecting means for detecting the position of the stacker crane K in the longitudinal direction of the moving passage 2 and a lifting position detecting means for detecting the lifting position of the lifting platform 12. A communication means for instructing control information to the controller installed in the control box H from the management means on the ground side is equipped, and the controller equipped in the control box H performs the warehousing work and the leaving work instructed from the management means. To control the travel operation of the stacker crane K, the lift operation of the lift platform 12, and the article transfer operation of the article transfer device V based on detection information of the travel position detection means and the lift position detection means. become.

[Another embodiment]
Next, another embodiment is listed.
(1) In the above-described embodiment, the case where a pair of front and rear columns is equipped as the column is illustrated, but the column may be implemented with a single column.

(2) In the above-described embodiment, the case where the driving wheel and the idle wheel are equipped as the traveling wheels is exemplified, but the driving wheel may be provided in the front-rear direction.
Moreover, you may implement with the form which equips the front and rear with an idler wheel as a running wheel. In this case, an endless rotating body that is rotationally driven along the traveling direction of the stacker crane is provided, and the endless rotating body and the stacker crane are connected to each other so that the stacker crane can travel.

(3) In the above-described embodiment, the case where the attachment plates for bolt-connecting the wheel support frame are welded to the front and rear ends of the main frame in the lower frame, but one side of the front and rear ends of the main frame in the lower frame is illustrated. In addition, the present invention can also be applied to a case where a mounting plate for bolt-connecting the wheel support frame is welded.

(4) In the above embodiment, the case where the mounting portion that receives and supports the lower end of the support column is provided on the auxiliary frame is exemplified. However, the mounting portion is provided on the mounting plate, and the mounting portion is provided on the auxiliary frame and the mounting plate. You may implement with the form provided in both.

(5) In the above-described embodiment, the case where the placement unit is configured by the shaft-like member is illustrated, but the placement unit may be configured by a plate-like member along the horizontal direction.
In this case, you may install a plate-shaped mounting part with the form which spans across an auxiliary | assistant frame and an attachment board.

(6) In the above embodiment, the case where the lifting platform is provided in a state extending from the column to one side of the vehicle body width direction so that the pair of left and right stacker cranes can pass each other is illustrated. The present invention can also be applied to a stacker crane provided in a state extending from the column to both sides in the vehicle body width direction.

7 traveling rail 9 lower frame 9M main frame 9F mounting plate 9R mounting plate 10 column 10F column 10R column 12 lifting platform 13F wheel support frame 13R wheel support frame 20F auxiliary frame 20R auxiliary frame 21F mounting unit 21R mounting unit W traveling wheel

Claims (5)

A lower frame provided with traveling wheels that can run along the running rail at both front and rear ends, a column that is erected from the lower frame, and a lifting platform that is guided by the column so as to be movable up and down. ,
The lower frame has a plate-like mounting plate in a posture along the vehicle body width direction and the vertical direction at least one of the front and rear ends of the long main frame along the vehicle body longitudinal direction. And a wheel support frame for supporting the traveling wheel located on the side where the mounting plate is present among the front and rear traveling wheels, which are welded in a state of projecting sideways, and configured to be bolted to the mounting plate. A stacked stacker crane,
A plate-like auxiliary frame in a posture along the longitudinal direction of the vehicle body and the vertical direction is welded to the lateral side surface of the end portion on the side of the main frame where the mounting plate exists, in a state of protruding above the main frame,
The column is bolted to the auxiliary frame and the mounting plate with the outer surface of the lower end side applied to the auxiliary frame and the mounting plate,
A stacker crane in which at least one of the auxiliary frame or the mounting plate is provided with a mounting portion that receives and supports the lower end of the support column.   The stacker crane according to claim 1, wherein the placing portion is a shaft-like member for placing a peripheral portion on a lower end surface of the support column.   The auxiliary frame is formed in an L shape having a front and rear plate portion along the vehicle body longitudinal direction and an upper plate portion extending upward from one end portion of the mounting plate on the front and rear plate portions in the vehicle body width direction. The stacker crane according to claim 1 or 2. The mounting plates are provided at both front and rear ends of the main frame, and each of the front and rear wheel support frames that support the front and rear traveling wheels is bolted to the mounting plate,
As the column, a pair of front and rear columns is provided,
The stacker crane according to any one of claims 1 to 3, wherein the auxiliary frame and the mounting portion are provided corresponding to each of the pair of front and rear columns.   The stacker crane according to any one of claims 1 to 4, wherein the lifting platform is provided in a state of extending from the support column to one side in a lateral direction of the vehicle body.

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