JP2016050109A - Article transport device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an article transport device which can lift up and down plural lifting bodies by a single lifting guide mast, and which has a ladder which allows a user to easily lift up and down, when any of plural lifting bodies is broken.SOLUTION: An article transport device comprises: a lifting guide mast 5 standing along a height direction; and plural lifting bodies for transporting an article, which are guided by the single lifting guide mast 5 and lift up and down. The lifting guide mast 5 comprises a columnar part having a polygonal columnar contour, and plural lifting guide faces M1, M2 formed on side faces of the columnar part and extending along the height direction. The lifting bodies lift up and down along respective plural lifting guide faces M1, M2. A ladder 6 which allows an operator to lift up and down along each of the lifting guide faces M1, M2 is provided on each of the plural lifting guide faces M1, M2.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an article conveying apparatus including an elevating guide mast erected along a height direction and an elevating body for conveying an article that is moved up and down by being guided by a single elevating guide mast.

As such an article conveying device, Japanese Patent Application Laid-Open No. 2004-99288 (Patent Document 1) discloses a simple structure along an elevating guide surface formed on one side surface of an elevating guide mast and extending along a height direction. A structure in which one lifting body is moved up and down is described.
In the article transport device of Patent Document 1, the lifting guide mast is fixed to a traveling carriage that travels along a traveling route disposed along the front of the article storage shelf. The lifting body is provided so as to move up and down with the side surface on one side of the traveling direction of the traveling carriage in the lifting guide mast as the lifting guide surface. In addition, the operator can move up and down on the other side surface in the traveling direction of the traveling carriage in the lifting guide mast in a form close to the other side surface on the side opposite to the side on which the one side surface exists. A ladder is attached. In such an article transport device, when the operator faces the ladder to raise and lower the ladder, there is a space behind the worker where there is no other object such as an article transport device. Even if the operator raises or lowers the ladder to reach the position where the lifting body is stopped for repair, etc. It will be easy to do.

  By the way, in the article conveying apparatus, it is required to improve the article conveying ability. In order to improve the article conveying capability in the article conveying apparatus having a single ascending / descending guide mast as described above, for example, as shown in Japanese Patent Application Laid-Open No. 2007-204254 (Patent Document 2), traveling in the ascending / descending guide mast is performed. It has been proposed that an article is conveyed by two lifting bodies, with each of a pair of front and rear side surfaces in the traveling direction of the carriage as a lifting guide surface.

JP 2004-99288 A JP 2007-204254 A

  However, in the configuration of Patent Document 2, the surface opposite to the lifting guide surface on which the lifting body moves up and down in the lifting guide mast is also the lifting guide surface, and in the form as in Patent Document 1, a ladder cannot be attached. . In this case, it is also conceivable to attach a ladder to a side surface (side surface facing the article storage shelf) that is not the lifting guide surface in the lifting guide mast. However, in general, in equipment equipped with the above-described article transporting device, other items such as article storage shelves and walls do not interfere with movable parts such as lifting bodies in order to improve space utilization efficiency. Because it is arranged as close as possible to the position, if the ladder is attached to the side that is not the lifting guide surface in the lifting guide mast, it is difficult to secure a space that allows the operator to move up and down between the ladder and other objects. There is a risk that the worker will not be able to move up and down the ladder.

  Therefore, it is desired to realize an article conveying apparatus having a ladder that allows an operator to easily move up and down when one of the plurality of lifting bodies breaks down while guiding a plurality of lifting bodies with a single lifting guide mast. It was.

In order to solve the above problems, an article conveying apparatus according to the present invention includes an elevation guide mast erected along a height direction, and an elevator for raising and lowering an article conveyed by the single elevation guide mast. With a body,
The elevating guide mast includes a columnar portion having a polygonal columnar outer shape, and includes a plurality of elevating guide surfaces formed on a side surface of the columnar portion and extending along a height direction, and the plurality of elevating guide surfaces Each of the plurality of lift guide surfaces is provided with a ladder configured to allow an operator to move up and down along the lift guide surfaces. It is characterized by that.

That is, when one of a plurality of lifting bodies guided by the lifting guide mast is in a high position and cannot be lowered, the normal lifting body that has not failed is lowered. Then, after making the lifting body not present above, the operator uses the ladder of the lifting guide surface provided with the lifting body that is not out of the ladders provided on each of the plurality of lifting guide surfaces. Thus, it is possible to reach the height at which the failed lifting body is located in a state where the lifting body does not exist above. In addition, the space for the operator to raise and lower the ladder is originally a moving space for raising and lowering the elevator, and there are no other items such as article storage shelves and walls. It becomes easy to perform the raising and lowering operation.
In this way, it is possible to realize an article conveying apparatus including a ladder that is easy for an operator to move up and down when any one of the plurality of lifting bodies breaks down while guiding a plurality of lifting bodies with a single lifting guide mast. .

  In the article transporting apparatus according to the present invention, the columnar portion has a plurality of struts arranged at each corner of the columnar portion when viewed in the height direction, and adjacent struts among the plurality of struts are high. A plurality of connecting members that are connected to each other at a plurality of positions in the vertical direction, and a part or all of the plurality of connecting members that connect between a pair of the columns that form the elevating guide surface, It is preferable that it also serves as a ladder.

  In other words, by connecting adjacent struts among a plurality of struts at a plurality of positions in the height direction by connecting members, the relative position between a pair of adjacent struts in the columnar part constituting the lifting guide mast is appropriate. It can be maintained in a proper position. In addition, since some or all of the plurality of connecting members that connect between the pair of support columns forming the lifting guide surface also serve as the horizontal rail of the ladder, the members of the lifting guide mast including the ladder You can save money. In this way, the ladder that allows the operator to move up and down while maintaining the relative position of a pair of adjacent columns among the plurality of columns in the columnar body constituting the lifting guide mast in an appropriate position and reducing the number of members. Can be provided.

  In the article conveying apparatus according to the present invention, a connection body that is provided on an inner side than a side surface of the columnar portion and integrally connects the plurality of support columns is provided, and the connection body is provided on the inner side of the horizontal rail. It is preferable that the adjacent bars are arranged so as not to overlap with the horizontal rail peripheral area which is an area from the upper end surface of the horizontal rail to a predetermined height.

That is, the connecting body integrally connects the plurality of support columns, so that the columnar portion constituting the lifting guide mast can be maintained in an appropriate polygonal columnar shape.
When such a connecting body is provided, the connecting body is located at a position overlapping with the area around the horizontal rail which is an area adjacent to the inner side of the horizontal rail and extending from the upper end surface of the horizontal rail to a predetermined height. In this case, when the worker moves up and down the ladder portion, there is a possibility that the hand holding the horizontal rail or the foot placed on the horizontal rail interferes with the connecting body, thereby hindering the operator from moving up and down. Therefore, by arranging the connecting body so as not to overlap the area around the horizontal rail, the connecting body is positioned at a position that does not interfere with the lifting and lowering of the worker when the worker moves up and down the ladder. Can do.
In this way, it is possible to provide an article transporting apparatus including a ladder that allows an operator to easily move up and down while maintaining the columnar portion constituting the lifting guide mast in an appropriate polygonal columnar shape.

  In the article transporting apparatus according to the present invention, the lifting guide mast is fixed to a traveling carriage that travels along a traveling path, and the traveling path is along the front of an article storage shelf provided with a plurality of storage units that store articles. The columnar portion includes a first side surface and a second side surface that are a pair of the side surfaces extending along a direction in which the travel route extends, and a direction in which the travel route extends with respect to the travel guide mast. A first deformation suppressing member that suppresses deformation of the first side surface due to a traveling direction load that is a force acting along the second side surface is provided in parallel to the first side surface, and the second side surface due to the traveling direction load It is preferable that the 2nd deformation | transformation suppression member which suppresses a deformation | transformation of this is provided in parallel with said 2nd side surface.

A travel direction load, which is a force along the direction in which the travel route extends, acts on the lifting guide mast fixed to the travel cart as the travel cart travels.
Therefore, a first deformation suppression member that suppresses deformation of the first side surface that extends in the direction in which the travel path extends, a second deformation suppression member that suppresses deformation of the second side surface that extends in the direction in which the travel path extends, By providing this, deformation in the traveling direction of the mast due to the traveling direction load can be suppressed.
Further, by making the first side surface and the second side surface different from the lifting guide surface, a ladder is provided on the lifting guide surface, but the mast is deformed in the traveling direction on a surface different from the lifting guide surface. Can be suppressed.

Perspective view of main part of article storage facility provided with article transport device Side view of article transport device Cross-sectional plan view of lifting guide mast Cross-sectional plan view of the column Exploded perspective view of ladder unit Perspective view of ladder unit The perspective view which shows the state which fixed the ladder unit to the support | pillar Exploded perspective view with ladder unit removed from lifting guide mast The perspective view which shows the coupling body attached to a raising / lowering guide mast. The exploded perspective view which removed the deformation | transformation suppression member from the raising / lowering guide mast Perspective view of deformation suppression member XII-XII arrow cross-sectional view of the deformation suppressing member Cross-sectional plan view showing attachment of deformation suppressing member to a pair of struts

Hereinafter, an embodiment of an article storage facility provided with an article conveying device of the present invention will be described based on the drawings.
As shown in FIG. 1, the article storage facility A includes an article storage shelf 1 provided with a plurality of storage units S that store articles B in the vertical direction and the horizontal direction. The article storage shelves 1 are installed at an interval so that the article loading / unloading directions face each other (FIG. 1 shows only one of the pair of opposing article storage shelves 1). In addition, a traveling rail R <b> 1 on which a traveling carriage 31 of a stacker crane C as an article conveying device travels is laid along the front of the article storage shelf 1 on the front of the article storage shelf 1. Further, an upper rail R <b> 2 that guides the upper frame 33 of the stacker crane C is provided above the traveling rail R <b> 1 and higher than the upper end of the article storage shelf 1. In the product embodiment, the storage section S is configured to store two articles side by side in the article insertion / removal direction, but may be a storage section S that stores one article in the article insertion / removal direction.

The stacker crane C includes a traveling carriage 31 that travels on the traveling rail R1, and a single lifting guide mast 5 that is fixed to the traveling carriage 31 and is erected along the height direction (Z direction in FIG. 1). ing. In the following description, “along a certain direction” means that the inclination angle with respect to a certain direction is less than 10 degrees.
In the present embodiment, the stacker crane C is provided on each of a pair of side surfaces (surfaces represented by M1 and M2 in FIGS. 1 to 3) arranged in the traveling direction (X direction in FIG. 1) of the traveling carriage 31 in the lifting guide mast 5. A pair of elevating bodies 4 (first elevating body 4a, second elevating body 4b) that move up and down along the line is provided. Each of the lifting bodies 4 is provided with a transfer device 4F that transfers the article B between the storage unit S and itself. In the present embodiment, the transfer device 4F is configured to support two articles side by side in the article loading / unloading direction at the same time. However, the storage unit S is configured to store only one article in the article loading / unloading direction. In this case, the transfer device 4F is also configured to support one article in the article loading / unloading direction.

  As shown in FIGS. 1 and 2, the traveling carriage 31 includes a traveling motor G1 (first traveling motor G11, second traveling motor G12) that drives the driving wheels WK as viewed in the height direction. A pair is provided in the lateral width direction (Y direction in FIG. 1) perpendicular to the horizontal direction. Although not shown, the drive wheels WK are provided corresponding to the pair of first travel motor G11 and second travel motor G12. A control box H in which a crane controller that controls the operation of the stacker crane C is provided is provided at one end in the traveling direction of the traveling carriage 31.

  In addition, a pair of elevating drive motors G3 (first elevating drive motor G31 and second elevating drive motor G32) are provided for moving the elevating body 4 up and down by allocating to both sides in the Y direction at the lower end portion of the elevating guide mast 5. It has been. The first lifting drive motor G31 is configured to rotationally drive a drum capable of winding or feeding a first lifting wire (not shown), and the other end of the first lifting wire is an up of the first lifting body 4a. Connected to the light section. The second lifting drive motor G32 is configured to rotationally drive a drum capable of winding or feeding a second lifting wire (not shown), and the other end of the second lifting wire is the second lifting member 4b. Connected to the upright section. The first elevating drive motor G31 and the second elevating drive motor G32 can be driven independently, so that the first elevating body 4a and the second elevating body 4b can be driven up and down separately. It has become.

  Further, the upper frame 33 of the lifting guide mast 5 is an upper portion that rotationally drives a pair of upper traveling wheels WU (first upper traveling wheel WU1, second upper traveling wheel WU2) that are in contact with both side surfaces of the upper rail R2. Travel drive motors G2 (first upper travel drive motor G21 and second upper travel drive motor G22) are attached. The first upper travel drive motor G21 and the second upper travel drive motor G22 are configured such that the upper frame 33 of the lifting guide mast 5 is the upper rail R2 by a distance equal to the travel movement distance along the travel rail R1 of the travel carriage 31 by the travel motor G1. It is rotationally driven so that it may move along. Thereby, the stacker crane C can be run so that the longitudinal direction of the lifting guide mast 5 is along the vertical direction.

Hereinafter, the configuration of the lifting guide mast 5 will be described.
As shown in FIG. 3, the lifting guide mast 5 includes four columns 5 </ b> S (columns 5 </ b> Sa, 5 </ b> Sb, 5 </ b> Sc, and 5 </ b> Sd) that extend along the height direction at the corners of a rectangle when viewed in the height direction. ing. That is, the elevating guide mast 5 includes a columnar portion having a quadrangular columnar shape in which four support columns 5S are arranged in each of the corner portions. Of the four struts 5S, the struts 5Sa and the struts 5Sc are located on one side in the traveling direction of the traveling carriage 31, and the struts 5Sb and the struts 5Sd are located on the other side in the traveling direction of the traveling carriage 31. It is arranged to do. Note that the support column 5Sa and the support column 5Sb, and the support column 5Sc and the support column 5Sd are in a rotationally symmetrical relationship of 180 degrees when viewed in the height direction. The support column 5Sa and the support column 5Sc, and the support column 5Sb and the support column 5Sd It has a shape that is reversed. Therefore, the column 5Sa to the column 5Sd can be configured by adjusting the orientation and posture of the column member having the same shape according to the arrangement location.

  Each of the pillars 5S is formed by extrusion molding of a metal such as aluminum, and as shown in FIG. 8, a plurality of pillar members 5SB (two pillar members 5SB1 and 5SB2 in this embodiment) are connected in the height direction. Configured. FIG. 4 is a diagram showing a cross-sectional shape of the support column 5S viewed in the height direction. A first portion 51 and a second portion 52 with which a guide roller (not shown) of the elevating body 4 abuts are formed on the column 5S. The first portion 51 of each of the columns 5Sa to 5Sd has a direction in which the column 5Sa and the column 5Sc are arranged in a direction (X direction in FIGS. 1 to 4) orthogonal to the traveling direction of the traveling carriage 31 when viewed in the height direction, and The column 5Sb and the column 5Sd protrude outward in the arrangement direction. Further, the second portion 52 of each of the columns 5Sa to 5Sd is located on the outer side (hereinafter simply referred to as the first portion 51) in the alignment direction of the columns 5Sa and the column 5Sb and in the alignment direction of the columns 5Sc and the column 5Sd. It is formed so as to be along the traveling direction of the traveling carriage 31 (referred to as the outer side in the traveling direction of the lifting guide mast). The alignment direction of the support columns 5Sa and the support columns 5Sb from the first portion 51 of the support columns 5Sa to 5Sd, and the inner side of the alignment direction of the support columns 5Sc and the support columns 5Sd (hereinafter simply referred to as the inner side in the traveling direction of the lifting guide mast). The third portion 53 is formed along the traveling direction of the traveling carriage 31.

  A ladder unit 6 (to be described later) is fitted to the opposing surface portion 50TM located on the inner side of the alignment direction of the column 5Sa and the column 5Sc and the alignment direction of the column 5Sb and the column 5Sd in each of the columns 5Sa to 5Sd. Thus, a ladder attaching portion 54 to be attached is formed. Further, in each of the columns 5Sa to 5Sd, the deformation suppressing member 7 is mounted on the inner side of the alignment direction of the column 5Sa and the column 5Sb and the inner side of the column 5Sc and the column 5Sd with respect to the ladder mounting portion 54. For this purpose, a plate-like body attaching portion 55 is formed.

  The first elevating body 4a moves up and down in the height direction, guided by the first portion 51 and the second portion 52, on the outer side in the running direction of the virtual plane connecting the ladder mounting portions 54 of the column 5Sa and the column 5Sc. To do. The second elevating body 4b is moved up and down in the height direction, guided by the first portion 51 and the second portion 52, on the outer side in the running direction of the virtual plane connecting the ladder mounting portions 54 of the column 5Sb and the column 5Sd. To do. In the following description, the virtual plane connecting the respective ladder mounting portions 54 of the column 5Sa and the column 5Sc is referred to as the first elevating guide surface M1 (see FIGS. 1 to 3), and the ladder mounting portions 54 of the column 5Sb and the column 5Sd. The virtual surface to be connected is referred to as a second lifting guide surface M2 (see FIGS. 1 to 3). Moreover, the virtual surface which connects each plate-shaped body attachment part 55 of support | pillar 5Sa and support | pillar 5Sb is made into the 1st side surface M3 (refer FIG. 3), and the virtual surface which connects each plate-shaped object attachment part 55 of support | pillar 5Sc and support | pillar 5Sd. This is referred to as the second side face M4 (see FIG. 3).

That is, the lifting guide mast 5 includes a columnar portion having a polygonal columnar outer shape, and includes a first lifting guide surface M1 and a second lifting guide surface M2 that are formed on the side surface of the columnar portion and extend along the height direction. The first elevating body 4a moves up and down along the first elevating guide surface M1, and the second elevating body 4b moves up and down along the second elevating guide surface M2.
In addition, the columnar portion includes a first side surface M3 and a second side surface M4 which are a pair of side surfaces extending along the direction in which the travel route extends (the X direction in FIGS. 1 to 3).

  As shown in FIG. 5, the ladder unit 6 includes a pair of vertical rails 61 that are formed in an H shape with a concave portion forming portion 61 </ b> M <b> 1 and a concave portion forming portion 61 </ b> M <b> 2 on both surfaces of the intermediate connecting portion 61 </ b> G when viewed in the height direction. It has. A mounting hole 61h is formed in opposing portions 61a and 61b that are continuous with the recess forming portion 61M1 of the vertical beam 61, and a mounting hole 62h is formed in a portion corresponding to the mounting hole 61h in the horizontal beam 62. ing. Then, with the horizontal beam 62 sandwiched between the opposing portions 61a and 61b, the rivet 63 is engaged with the mounting hole 62h of the horizontal beam 62 via the mounting hole 61h of the vertical beam 61, The horizontal beam 62 is fixed to the vertical beam 61 as shown in FIG. Further, as shown in FIG. 7, a plurality of horizontal bars 62 are attached to the vertical bars 61 while being separated in the longitudinal direction of the vertical bars 61. The distance between the horizontal bars 62 adjacent to each other in the height direction is such that the operator can lift and lower the horizontal bars one step at a time (at least less than 500 mm, preferably 300 mm). Less). In this embodiment, it is about 270 mm. As shown in FIG. 8, the ladder unit 6 includes a plurality of ladder units 6 </ b> A, 6 </ b> B, and 6 </ b> C having different lengths of the vertical bars 61. That is, a part of the plurality of ladder units 6 is configured to have a different length in the height direction compared to the other ladder units 6.

The opposing portions 61c and 61d that are continuous with the recess forming portion 61M2 of the vertical beam 61 are formed so that the protruding distance from the intermediate connecting portion 61G is shorter than the opposing portions 61a and 61b.
As shown in FIG. 4, the ladder attachment portion 54 in each of the four columns 5 </ b> S includes a fitting protrusion 54 </ b> T that fits between the facing portions 61 c and 61 d in the ladder unit 6. The fitting protrusion 54 </ b> T is formed to have a size that allows fitting between the facing portions 61 c and 61 d of the ladder unit 6.
And the ladder unit 6 is positioned with respect to the support | pillar 5S in the driving | running | working direction of the driving | running | working cart 31 by setting it as the state by which the fitting protrusion 54T is pinched by the opposing parts 61c and 61d. In the state where the ladder unit 6 is positioned by the fitting protrusion 54T and the opposing portions 61c and 61d as described above, the ladder unit 6 is interposed between the column 5Sa and the column 5Sc by the bolt, the nut, and the tap plate, and the column 5Sb. And the column 5Sd. That is, the ladder mounting portions 54 extending along the height direction are formed on the opposing surface portions 50TM of the pair of support columns 5S facing each other, and each of the pair of vertical beams 61 in the ladder unit 6 is used as a pair of support columns. A pair of vertical bars 61 are fixed to the pair of columns 5S in a state of being fitted to the ladder attaching portions formed on the corresponding columns 5S of 5S. In this way, the first elevating guide surface M1 is provided with the ladder 6a configured to allow the operator to move up and down along the first elevating guide surface M1, and the second elevating guide surface M2 includes the second elevating guide surface M2. A ladder 6b configured to allow an operator to move up and down along the lifting guide surface M2 is provided.

  As shown in FIG. 8, the pair of vertical bars 61 of the ladder unit 6 is connected to the column member 5SB1 and the column member 5SB2 in the pair of columns 5S in the state of being attached to the pair of columns 5S, and the height. It is arranged at an overlapping position in the direction. That is, the vertical rail 61 exists continuously over the upper end of the column member 5SB1 and the lower end of the column member 5SB2. For this reason, when it is set as the structure which connects multiple support | pillar member 5SB to a height direction, the connection part of support | pillar member 5SB can be reinforced with the vertical beam 61. FIG.

  In the present embodiment, a plurality of horizontal bars 62 in the ladder unit 6 that connects the pair of adjacent columns 5Sa and the column 5Sc, a plurality of horizontal bars 62 in the ladder unit 6 that connects the pair of adjacent columns 5Sb and the column 5Sd, Each of the first deformation suppressing member 7a connecting the pair of adjacent columns 5Sa and the column 5Sb and the second deformation suppressing member 7b connecting the pair of adjacent columns 5Sc and the column 5Sd correspond to a connecting member. In the following description, the first deformation suppressing member 7a and the second deformation suppressing member 7b are collectively referred to as a deformation suppressing member 7. That is, the columnar part connects the plurality of columns 5S arranged at each of the corners of the side surface of the columnar unit and the adjacent columns 5S among the columns 5S at a plurality of positions in the height direction. A plurality of connection members, and a plurality of connection members for connecting adjacent columns 5S to each other at a plurality of positions in the height direction among the plurality of columns 5S. A plurality of connecting members connecting between a pair of support columns (the support columns 5Sa and the support columns 5Sc, or the support columns 5Sb and the support columns 5Sd) forming the elevating guide surface M2 also serve as a ladder crosspiece 62.

  When one of the pair of lifting bodies 4 breaks down and stops at a high place, the other lifting body 4 that does not break down is lowered to the lifting lower limit position. FIG. 2 shows the other case where the first elevating body 4a fails. At this time, the second elevating body 4b that has not failed is lowered from the ascending position (indicated by the dotted line) to the elevating lower limit position (indicated by the solid line), and the operator ascends and descends the ladder on the second elevating guide surface M2 side. Thereby, the operator can raise and lower the ladder in a safe state where the lifting body 4 does not exist above.

  As shown in FIGS. 3 and 8, the side surfaces of the columnar part formed by the four columns 5S (first elevating guide surface M1, second elevating guide surface M2, first side surface M3, second side surface M4). A connecting body 8 that integrally connects the four support columns 5S is provided on the inner side. The connecting body 8 includes a first connecting member 81a that connects the column 5Sa and the column 5Sb in a posture in which the longitudinal direction is along the traveling direction, and a space between the column 5Sc and the column 5Sd in a posture in which the longitudinal direction is along the traveling direction. And a second connecting member 81b to be connected. The first connecting member 81a is provided at a position close to the first side face M3, and is connected to each of the support column 5Sa and the support column 5Sb in a state of being bolted via a connection member. Moreover, the 2nd connection member 81b is provided in the position close | similar to the 2nd side M4, and is connected in the state fixed with the volt | bolt via the connection member to each of support | pillar 5Sc and support | pillar 5Sd. Further, at the central portion of the first connecting member 81a and the second connecting member 81b in the traveling direction, the two connecting members 82a and 82b are arranged such that the first connecting member 81a and the second connecting member 81b are arranged along the traveling direction. It is connected with. Each of the first connecting member 81a and the two interconnecting members 82a and 82b and each of the second connecting member 81b and the two interconnecting members 82a and 82b are fixed by welding to the connecting and fixing member 83, respectively. . For this reason, the 1st connection member 81a, the 2nd connection member 81b, and the interconnection members 82a and 82b in the connection body 8 are firmly fixed as a whole. Therefore, it is possible to maintain the relative positional relationship in the height direction view of the columns 5Sa, columns 5Sb, columns 5Sc, and columns 5Sd connected to each other via the connection body 8.

  As described above, the connecting body 8 is provided at a position where the first connecting member 81a is close to the first side face M3, and the second connecting member 81b is provided at a position close to the second side face M4. Since the members 82a and 82b are located in the center part in the longitudinal direction of the first connecting member 81a and the second connecting member 81b, the members constituting the connecting body 8 are cross rails in the traveling direction (X direction in FIG. 3). It does not exist in a portion adjacent to the inside of 62. Further, since the members constituting the connecting body 8 are unevenly distributed at both end portions in the longitudinal direction of the horizontal rail 62 (Y direction in FIG. 3), they do not exist in the central portion in the longitudinal direction of the horizontal rail 62. In addition, the horizontal rail peripheral area which is an area adjacent to the inner side of the horizontal beam 62 extends in the height direction from the upper end surface of the horizontal beam 62 to the existing height of the horizontal beam 62 adjacent to the upper side of the horizontal beam 62. As an area. Therefore, in this embodiment, the horizontal rail peripheral region for all the horizontal rails 62 arranged in the height direction is continuous, and is a region continuous in the height direction in which the horizontal rail 62 exists. In other words, the connecting body 8 is arranged so as not to overlap with the horizontal rail peripheral region, which is an area adjacent to the inside of the horizontal rail 62 and extending from the upper end surface of the horizontal rail 62 to a predetermined height.

As shown in FIG. 3 and FIG. 10, between the support column 5Sa and the support column 5Sb, due to a traveling direction load that is a force acting on the lifting guide mast 5 along the traveling direction (X direction) of the traveling carriage 31. A plate-shaped first deformation suppressing member 7a that suppresses deformation of the first side surface M3 is provided in parallel to the first side surface M3.
A plate-like second deformation suppressing member 7b that suppresses deformation of the second side surface M4 due to the traveling direction load is provided between the column 5Sc and the column 5Sd in parallel to the second side surface M4.

  As shown in FIG. 11, the first deformation suppressing member 7a and the second deformation suppressing member 7b include a plate-like body 70 extending along the first side surface and the second side surface. A pair of side edge portions 70S extending along the height direction are provided on both sides in the traveling direction of the plate-like body 70, and each of the pair of side edge portions 70S has a pair of side edge portions 70S. Each is provided with a fixing portion 73 that fixes each to a corresponding one of the pair of columns 5S (column 5Sa and column 5Sb or column 5Sc and column 5Sd). As shown in FIG. 11, the plate-like body 70 is a protrusion in which a portion protruding from the flat plate-like portion 70 </ b> H in the thickness direction of the plate-like body 70 extends in a band shape along the plate surface of the plate-like body 70. Part 70T. 12 is a cross-sectional view taken along the arrow XII-XII in FIG. The ridge portion 70T is arranged in a polygonal line that meanders by alternately connecting portions having different heights between one and the other of the pair of columns 5S (column 5Sa and column 5Sb or column 5Sc and column 5Sd). ing. Further, the plate-like body 70 is formed with an opening forming portion 70 </ b> K that forms an opening penetrating the plate-like body 70 in the thickness direction in a non-existing region where the protruding portion 70 </ b> T does not exist. Further, the plate-like body 70 is configured by arranging a plurality of plate-like bodies 70 (four in the present embodiment, plate-like bodies 70A to 70D) in the height direction of the pair of support columns 5S.

  Next, a structure for attaching the plate-like body 70 to each of the pair of support columns 5S arranged along the traveling direction of the traveling carriage 31 will be described. In addition, although the 1st deformation | transformation suppression member 7a which connects between support | pillar 5Sa and support | pillar 5Sb is demonstrated here, since it is the same also about the 2nd deformation | transformation suppression member 7b which connects between support | pillar 5Sc and support | pillar 5Sd. The description of the mounting method of the second deformation suppressing member 7b is omitted.

  As shown in FIG. 13, each of the pair of side edge portions 70 </ b> S of the plate-like body 70 includes a pair of end surfaces 70 </ b> E extending along a plane orthogonal to the traveling direction of the traveling carriage 31. As shown in FIGS. 4 and 13, one of the pair of columns 5 </ b> S, the column 5 </ b> Sa extends along the height direction, and one of the end surfaces 70 </ b> E (the end surface 70 </ b> Ea) of the plate-like body 70. A first abutment surface 55Ta that abuts is provided. The support 5Sb, which is the other of the pair of support 5S, extends along the height direction and is in contact with the other (end face 70Eb) of the end faces 70E of the plate-like body 70. It has.

  Further, the column 5Sa includes a first side edge contact surface 55Sa that contacts the side edge first surface 70Sa that is a surface on the side of the thickness first direction Yb that is one side of the side edge 70S in the thickness direction. In addition, the first contact surface is formed on the first contact surface forming portion 55TKa projecting from the first side edge contact surface 55Sa to the thickness second direction Ya side opposite to the thickness first direction Yb side. 55Ta is formed, and further, the first side edge contact surface 55Sa is inclined to the column 5Sb side from the first contact surface forming portion 55TKa toward the column 5Sb in the thickness direction toward the second direction Ya. The first inclined surface 55Ka is formed so as to extend along the height direction.

  The support column 5Sb includes a second side edge contact surface 55Sb that contacts the side edge second surface 70Sb that is the surface in the thickness first direction Yb side of the side edge 70S, and the second side edge contact. The second contact surface 55Tb is formed on the second contact surface forming portion 55TKb that protrudes from the surface 55Sb in the thickness second direction Ya side, and further, the second contact surface formation on the second side edge contact surface 55Sb is formed. A second inclined surface 55Kb is formed on the support column 5Sa side of the portion 55TKb so as to extend along the height direction in a direction toward the thickness second direction Ya side toward the support column 5Sa side. .

The plate-like body 70 has a plate-like body first inclined surface 70Ka that is continuous from the side edge first surface 70Sa and is inclined in the direction toward the thickness second direction Ya as it goes toward the end surface 70Eb in the height direction view. A plate-like body second inclined surface 70Kb that is continuous from the side edge second surface 70Sb and is inclined in the direction toward the thickness second direction Ya as it goes toward the end surface 70Ea when viewed in the height direction.
Therefore, in a state where the end surface 70Ea of the plate-like body 70 is in contact with the first contact surface 55Ta of the support column 5Sa, the side edge first surface 70Sa of the plate-like body 70 is the first side edge contact surface of the support column 5Sa. While being in contact with 55Sa, the plate-like body first inclined surface 70Ka of the plate-like body 70 is in contact with the first inclined surface 55Ka of the support column 5Sa. For this reason, when the plate-like body 70 is attached to the column 5Sa, it is possible to suppress the displacement of the plate-like body 70 in the traveling direction of the traveling carriage 31 with respect to the column 5Sa. Further, in a state where the end surface 70Eb of the plate-like body 70 is brought into contact with the second contact surface 55Tb of the support column 5Sb, the side edge second surface 70Sb of the plate-like body 70 is the second side edge contact surface of the support column 5Sb. While being in contact with 55Sb, the plate-like body second inclined surface 70Kb of the plate-like body 70 is in contact with the second inclined surface 55Kb of the support column 5Sb. For this reason, when the plate-like body 70 is attached to the column 5Sb, it is possible to suppress the displacement of the plate-like body 70 in the traveling direction of the traveling carriage 31 with respect to the column 5Sb. This mounting structure is the same for the column 5Sc and column 5Sd. That is, the plate-like body 70 can be attached to each of the support 5Sa and the support 5Sb, or the support 5Sc and the support 5Sd in a state in which the displacement of the traveling carriage 31 in the traveling direction is suppressed.

[Another embodiment]
(1) In the said embodiment, the raising / lowering guide mast 5 is comprised including the columnar part which has a square-shaped external shape, and the 1st raising / lowering body 4a which moves up / down along the 1st raising / lowering guide surface M1 as the raising / lowering body 4 is comprised. And a second elevating body 4b that moves up and down along the second elevating guide surface M2, and the first elevating guide surface M1 and the second elevating guide surface M2 are configured as opposing side surfaces in the columnar portion. However, you may comprise the 1st raising / lowering guide surface M1 and the 2nd raising / lowering guide surface M2 as an adjacent side surface. Moreover, it is good also as a structure which provides three or more raising / lowering guide surfaces, and provides the raising / lowering body 4 to each of all those raising / lowering guide surfaces. Further, the lifting guide mast 5 is configured as a columnar body having a triangular or pentagonal or more polygonal outer shape, and the lifting guide surface is any one side surface or two or more side surfaces of the side surfaces of the columnar body. It is good also as a structure.

(2) In the above-described embodiment, the configuration in which all of the plurality of coupling members that connect between the pair of support columns 5S forming the lifting guide surface are the horizontal rails 62 of the ladder has been described. A part of the members may be configured as a horizontal beam 62 (for example, the lower and upper end portions of the lifting guide mast 5 are not a horizontal beam but a plate-like frame). It suffices if it is provided in a portion where a person may work.

(3) In the above embodiment, the configuration in which the connecting body 8 that integrally connects the plurality of support columns 5S is provided in the region adjacent to the inner side of the horizontal rail 62 is described, but the connecting body 8 may not be provided. . Moreover, in the said embodiment, although the structure which forms the connection body 8 using the 1st connection member 81a, the 2nd connection member 81b, and the interconnection members 82a and 82b was demonstrated, the connection body 8 is made into single. It is good also as a structure formed from a member (for example, shaving formation etc.). Further, in the above-described embodiment, the height of the upper surface of the connecting body 8 is set to be the same as the height of the upper surface of the ladder crosspiece 62. However, the height of the upper surface of the connecting body 8 is the horizontal crosspiece of the ladder. The structure which becomes a position higher than the height of the upper surface of 62 may be sufficient.

(4) In the above embodiment, the ladder unit 6 has three ladder units (ladder units 6A, 6B, and 6C). However, the ladder unit 6 includes one, two, or four units. That's all. In the present embodiment, all the three ladder units 6A, 6B, and 6C are configured to be ladder units having different lengths of the vertical beam 61. However, the length of the vertical beam 61 in the plurality of ladder units is set to be different. All the lengths may be the same, or the lengths of the vertical rails 61 in some of the ladder units may be the same. Moreover, it is good also as a structure which attaches the horizontal crosspiece 62 directly to a pair of support | pillar 5S (support | pillar 5Sa and support | pillar 5Sc, or support | pillar 5Sb and support | pillar 5Sd) without using the ladder unit 6. FIG.

(5) In the above-described embodiment, the configuration in which the lifting guide mast 5 is fixed to the traveling carriage 31 that travels along the travel route has been described. However, the lifting guide mast 5 may be a transport device fixed to the floor surface. Moreover, it is good also as a structure by which the raising / lowering guide mast 5 is provided in the suspended state from the overhead traveling carriage which drive | works the upper rail supported by the ceiling.

(6) In the above embodiment, the first deformation suppressing member 7a provided on the first side surface M3 that is the side surface extending along the direction in which the travel route extends and the first side surface are opposed to each other in the direction in which the travel route extends. Although the example which comprises the 2nd deformation | transformation suppression member 7b provided in the 2nd side M4 which is a side surface extended along with the plate-shaped body 70 provided with the sloping protrusion part 70T was shown, such It is not limited to the configuration, and each of the first deformation suppression member 7a and the second deformation suppression member 7b is a rod-like shape that alternately connects the portions of the pair of columns 5S with different heights from one another. You may comprise diagonal material.

4 Lifting body 5 Lifting guide mast 5S Strut 7 Deformation suppressing member 8 Linkage 31 Traveling carriage 61 Vertical beam 62 Horizontal beam M1 First lifting guide surface M2 Second lifting guide surface S Storage part

Claims (4)

An article conveying apparatus comprising an elevating guide mast erected along a height direction and an elevating body for conveying an article that is guided by a single elevating guide mast and moves up and down,
The elevating guide mast includes a columnar portion having a polygonal columnar outer shape, and includes a plurality of elevating guide surfaces formed on side surfaces of the columnar portion and extending along a height direction,
The lifting body is configured to move up and down along each of the plurality of lifting guide surfaces,
An article conveying device in which a ladder configured to allow an operator to move up and down along the lifting guide surface is provided on each of the plurality of lifting guide surfaces. The columnar part connects a plurality of columns arranged at each corner of the columnar unit when viewed in the height direction and adjacent columns among the columns at a plurality of positions in the height direction. A plurality of connecting members,
2. The article transporting apparatus according to claim 1, wherein a part or all of the plurality of connecting members connecting between the pair of pillars forming the lifting guide surface also serve as a horizontal rail of the ladder. Provided on the inner side of the side surface of the columnar portion, a connection body that integrally connects the plurality of support columns is provided,
2. The connecting body is arranged so as not to overlap with a horizontal rail peripheral area which is an area adjacent to the inside of the horizontal rail and extending from a top end surface of the horizontal rail to a predetermined height. Or the article conveying apparatus of 2. The elevating guide mast is fixed to a traveling carriage traveling along a traveling route;
The travel route is disposed along the front of an article storage shelf provided with a plurality of storage units for storing articles,
The columnar portion includes a first side surface and a second side surface which are a pair of the side surfaces extending along a direction in which the travel route extends;
A first deformation suppression member that suppresses deformation of the first side surface due to a traveling direction load that is a force acting along the direction in which the travel route extends with respect to the travel guide mast is provided in parallel to the first side surface. The article according to any one of claims 1 to 3, wherein a second deformation suppressing member that suppresses deformation of the second side surface due to the traveling direction load is provided in parallel to the second side surface. Conveying device.

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