JP6111925B2 - Transport vehicle system - Google Patents

Description

  The present invention relates to a transport vehicle system including a transport vehicle that travels along a track disposed on a ceiling and transports a load.

  Conventionally, there is a ceiling transport vehicle that is a transport vehicle that travels along a track arranged on the ceiling. The overhead transport vehicle holds and transports parts or semi-finished products necessary for production in a factory that produces electronic devices, for example.

  In addition, in a building such as a factory in which such a ceiling transport vehicle is disposed, for example, in consideration of the possibility of a baggage being transported by the ceiling transport vehicle falling, a fall prevention net is provided below the rails constituting the track. Is installed.

  For example, Patent Document 1 discloses a safety device in which a plurality of arms are installed on a rail or a suspension member thereof, and a safety net is latched by a hook provided at the lower end of these arms.

Japanese Utility Model Publication No. 2-27965

  Here, for example, machine tools for production of electronic devices, storages for storing parts of the electronic devices, and the like may be distributed in a plurality of buildings. In this case, the moving route of the ceiling transport vehicle is also formed across a plurality of buildings.

  That is, a part of the track is arranged so as to straddle the boundary between two adjacent buildings, and the overhead transport vehicle moves between these buildings by traveling along a part of the track. Therefore, it is desirable to install the fall prevention member such as the fall prevention net so as to straddle the boundary between the two buildings.

  However, for example, when an earthquake occurs, in general, the amplitude or period of shaking of each of the two buildings does not match. Therefore, when an earthquake occurs, the fall prevention member may be damaged and become unable to perform its original function.

  The present invention is a transport vehicle system including a transport vehicle that travels on a track arranged so as to straddle the boundary between two adjacent buildings in consideration of the above-described conventional problems, and provides safety in an area including the boundary. Provided is a transport vehicle system including a fall prevention member to be improved.

  In order to achieve the above object, a transport vehicle system according to an aspect of the present invention is a transport vehicle system including a transport vehicle that travels along a track, and the track is arranged in a suspended manner in a first building. A first rail that is suspended from the first building, and a second rail that is connected to the first rail, the carriage system being fixed to the first building in a suspended manner The first fall prevention member that is disposed below the first rail and that extends in the horizontal direction, and is suspended from the second building and is disposed below the second rail and extends in the horizontal direction. A second fall prevention member, and the first fall prevention member and the second fall prevention member are arranged such that the end portions of the first fall prevention member and the second fall prevention member have a predetermined distance in the vertical direction and overlap in a top view. Yes.

  According to this configuration, the first fall prevention member fixed to the first building and the second fall prevention member fixed to the second building are overlapped so that their end portions are spaced apart in the vertical direction. Be placed.

  Therefore, even if the first building and the second building are shaken with different amplitudes or periods due to the occurrence of an earthquake, for example, the first fall prevention member and the second fall prevention member should not interfere with each other. Can do. That is, the first fall prevention member and the second fall prevention member are protected from shaking such as an earthquake.

  Further, even if the package being transported falls from the transport vehicle in the vicinity of the boundary between the first building and the second building, the package will be removed by at least one of the first fall prevention member and the second fall prevention member. Be caught.

  That is, even when an earthquake occurs, the first fall prevention member and the second fall prevention member can fulfill the original role of improving safety in the cargo transport operation.

  Thus, the conveyance vehicle system of this aspect is a conveyance vehicle system provided with the conveyance vehicle which drive | works the track | orbit arrange | positioned so that the boundary of two adjacent buildings may be straddled, Comprising: The area | region including the boundary of the said two buildings It is a conveyance vehicle system provided with the fall prevention member which improves the safety | security in.

  In the transport vehicle system according to one aspect of the present invention, the first fall prevention member is suspended from the first rail by a first main frame fixed to the first rail, and the second fall The prevention member may be suspended from the second rail by a second main frame fixed to the second rail.

  According to this configuration, each of the first fall prevention member and the second fall prevention member is disposed by the main frame fixed to the rail (first rail or second rail). That is, since the rail has a structure for fixing the main frame, for example, the degree of freedom of the arrangement positions of the first fall prevention member and the second fall prevention member is high.

  Moreover, the carrier system which concerns on 1 aspect of this invention WHEREIN: Said 1st fall prevention member is a longitudinal frame long in the extension direction of said 1st rail attached to the lower end part of said 1st main frame. The longitudinal frame may be attached to the lower end of the first main frame so that the longitudinal frame protrudes until the end of the longitudinal frame overlaps the second fall prevention member in a top view. Good.

  According to this configuration, the first fall prevention member is supported by the longitudinal frame. Therefore, for example, by adjusting the protruding distance of the longitudinal frame in the direction of the second fall prevention member, the length of the overlapping region in the top view of the first fall prevention member and the second fall prevention member (the longitudinal direction described above) Can be changed). That is, it is easy to adjust the length of the overlapping region.

  In the transport vehicle system according to one aspect of the present invention, the first rail and the second rail are connected via an intermediate rail that is movably fixed to one of the first rail and the second rail. The end portions of the first fall prevention member and the second fall prevention member, which are arranged so as to overlap each other in a top view, are located below the intermediate rail, and the carrier system further includes It is good also as providing the reinforcement frame which connects the upper part of a 1st rail, and the said edge part of a said 1st fall prevention member.

  According to this configuration, since the intermediate rail is movable, the stress generated in the first rail and the second rail due to the shaking at the time of occurrence of the earthquake is relieved.

  Further, since the intermediate rail is movable, the main frame that suspends the end portion of the first fall prevention member existing below the intermediate rail cannot be fixed to the intermediate rail. However, by providing a reinforcing frame that connects the end portion of the first fall prevention member and the first rail, more stable fixing of the first fall prevention member is realized.

  In addition, the transport vehicle system according to one aspect of the present invention further extends in a direction intersecting the horizontal direction provided at a position corresponding to a side of the transport vehicle when the transport vehicle is positioned on the intermediate rail. A side fall prevention member may be provided.

  According to this configuration, for example, when the earthquake occurs, the intermediate rail is detached from the first rail or the second rail, so that even if the transport vehicle is detached from the intermediate rail, the first dropping member and the second falling member For example, the conveyance vehicle is prevented from falling onto the floor surface by the side fall prevention member. That is, the safety related to the work of transporting the luggage by the transport vehicle is further improved.

  According to the present invention, there is a transport vehicle system including a transport vehicle that travels on a track arranged so as to straddle the boundary between two adjacent buildings, and improves safety in a region including the boundary between the two buildings. A conveyance vehicle system provided with a fall prevention member can be provided.

FIG. 1 is a plan view showing a schematic configuration of a transport vehicle system according to an embodiment. FIG. 2 is a front view illustrating a configuration outline in a building boundary region of the transport vehicle system. FIG. 3 is a top view showing the positional relationship between the first fall prevention member and the second fall prevention member in the embodiment. FIG. 4 is a side view showing the positional relationship between the first main frame and the second main frame in the embodiment. FIG. 5 is a perspective view showing an outline of a structure for arranging the first fall prevention member in the embodiment. FIG. 6 is a cross-sectional view showing an outline of a structure for attaching the first main frame to the first rail. FIG. 7 is a cross-sectional view showing an outline of a structure for attaching the first longitudinal frame to the first main frame. FIG. 8 is a diagram illustrating an example of an arrangement layout of a plurality of first main frames. FIG. 9 is a front view illustrating another example of the configuration outline in the building boundary region of the transport vehicle system.

  Hereinafter, a transport vehicle system according to an embodiment of the present invention will be described with reference to the drawings. Each figure is a schematic diagram and is not necessarily illustrated exactly.

  In addition, the embodiments described below show comprehensive or specific examples. Numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of constituent elements, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

  FIG. 1 is a plan view showing a schematic configuration of a transport vehicle system 100 according to an embodiment.

  As shown in FIG. 1, the transport vehicle system 100 of the present embodiment includes a transport vehicle 101 that travels along a track 190 disposed on the ceiling. The conveyance vehicle 101 is a type of conveyance vehicle generally called an overhead conveyance vehicle or an overhead traveling vehicle.

  The track 190 is a structure that guides the travel of the transport vehicle 101 and forms a travel route of the transport vehicle 101. In the present embodiment, the track 190 is realized by a rail arranged in a state of being suspended from the ceiling.

  Moreover, in this Embodiment, the carrier vehicle system 100 is provided in the factory which manufactures an electronic device, for example, and the said factory is comprised by two adjacent buildings (the 1st building 11 and the 2nd building 12). ing.

  As shown in FIG. 1, the first building 11 and the second building 12 include a first bay 51 and a second bay 52 that are separated by a manufacturing process.

  Each bay is provided with a plurality of transfer ports (not shown), which are places for placing and picking up parts of electronic devices. In each bay, a one-way circuit that forms part of the track 190 is arranged.

  Each of the plurality of transport vehicles 101 travels a peripheral circuit of each bay and a connection path that connects these peripheral circuits, thereby transporting electronic device components and the like from one transfer port to another transfer port.

  In the present embodiment, as shown in FIG. 1, as a connection path between bays, a one-way connection path from the first building 11 to the second building 12 and one from the second building 12 to the first building 11. There are traffic connections.

  The layout of the track 190 shown in FIG. 1 is an example, and the layout of the track 190 may adopt a complicated shape according to the layout of the factory building and production equipment.

  In the transport vehicle system 100 having such a configuration, a fall prevention member for improving safety is disposed below the track 190.

  In addition, the transport vehicle system 100 according to the present embodiment is characterized by the structure of the fall prevention member in a region (building boundary region) including the boundary between the first building 11 and the second building 12.

  FIG. 2 is a front view showing a configuration outline in the building boundary region A of the transport vehicle system 100.

  In addition, in FIG. 2, although the structure outline | summary in the building boundary area | region A containing a part of lower connection path in FIG. 1 is shown, the structure outline | summary in the building boundary area | region including a part of upper connection path in FIG. 2 is the same as FIG. 2, and its illustration and description are omitted.

  As shown in FIG. 2, in the transport vehicle system 100 according to the present embodiment, the first rail 121 arranged in a suspended manner in the first building 11 and the suspended structure in the second building 12 are arranged, The transport vehicle 101 travels along the second rail 122 connected to the one rail 121.

  Thereby, the transport vehicle 101 can move across the boundary between the first building 11 and the second building 12.

  Specifically, the first rail 121 is suspended from the ceiling 11 a of the first building 11, and the second rail 122 is suspended from the ceiling 12 a of the second building 12. In the present embodiment, the first rail 121 and the second rail 122 are connected via an intermediate rail 125.

  Each of the first rail 121, the second rail 122, and the intermediate rail 125 is a member that constitutes a part of the track 190 in the present embodiment.

  The intermediate rail 125 is a member that is movably fixed to one of the first rail 121 and the second rail 122. The intermediate rail 125 is rotated, for example, in the horizontal direction (direction parallel to the XY plane) due to the shaking caused by the earthquake, and thereby the stress generated in the first rail 121 and the second rail 122 is relieved. As a result, the first rail 121 and the second rail 122 are prevented from being damaged due to the shaking of the earthquake.

  Thus, the connection path arrange | positioned in the building boundary area | region A is comprised by the 1st rail 121, the 2nd rail 122, and the intermediate rail 125 in this Embodiment.

  Moreover, the conveyance vehicle system 100 is provided with the 1st fall prevention member 150 and the 2nd fall prevention member 250 as a characteristic structure.

  The first fall prevention member 150 is a member that is fixed to the first building 11 in a suspended manner and is disposed below the first rail 121 and extends in the horizontal direction.

  The second fall prevention member 250 is a member that is fixed to the second building 12 in a suspended manner and is disposed below the second rail 122 and extends in the horizontal direction.

  Both the first fall prevention member 150 and the second fall prevention member 250 are realized by, for example, a wire mesh produced by knitting a metal wire. In addition, there is no limitation in particular in the raw material, shape, etc. of the 1st fall prevention member 150 and the 2nd fall prevention member 250, You may implement | achieve by the resin-made net | network or the punching wire net | network.

  Moreover, the first fall prevention member 150 and the second fall prevention member 250 do not need to be mesh-like members, and may have a structure that receives a fallen object with a flat impact absorber, for example.

  That is, the first fall prevention member 150 and the second fall prevention member 250 have strength, flexibility, and the like that can absorb the impact of the fall when it is assumed that the transport vehicle 101 has fallen from the track 190, for example. If you do.

  In addition, about these fall prevention members (150, 250), there are various names such as “fall prevention fence” or “safety net”, for example.

  In addition, the first fall prevention member 150 and the second fall prevention member 250 are arranged such that the end portions of the first fall prevention member 150 and the second fall prevention member 250 are spaced apart from each other by a predetermined distance in the vertical direction (Z-axis direction).

  FIG. 3 is a top view showing the arrangement positions of the first fall prevention member 150 and the second fall prevention member 250 in the embodiment. 3, illustration of components other than the first fall prevention member 150 and the second fall prevention member 250 is omitted.

  FIG. 4 is a side view showing the positional relationship between the first main frame 131 and the second main frame 231 in the embodiment.

  In FIG. 4, the positions of the first main frame 131 and the second main frame 231 when the first main frame 131 and the second main frame 231 are viewed from the right side (X-axis positive direction) in FIG. 2. The relationship is shown.

  In the present embodiment, as shown in FIGS. 2 and 3, there is an overlapping region W in the top view of the first fall prevention member 150 and the second fall prevention member 250. In addition, a predetermined interval is provided between the first fall prevention member 150 and the second fall prevention member 250 in the overlapping region W as shown in FIGS.

  That is, the first fall prevention member 150 and the second fall prevention member 250 are overlapped with each other so that an object (such as the transport vehicle 101 or the luggage 80) falling from above can be received. .

  In addition, the end portions of the first fall prevention member 150 and the second fall prevention member 250 exist at a predetermined distance in the vertical direction.

  Thereby, for example, when an earthquake occurs, even if the first building 11 and the second building 12 are shaken with different amplitudes or periods, the first fall prevention member 150 and the second fall prevention member 250 are An object from above can be received without causing interference with each other.

  That is, according to the first fall prevention member 150 and the second fall prevention member 250 of the present embodiment, for example, when an earthquake occurs, damage due to shaking is suppressed, and safety in the building boundary region is ensured. It becomes possible to do.

  In the present embodiment, specifically, each of first fall prevention member 150 and second fall prevention member 250 is fixed to track 190 by, for example, a metal frame.

  That is, as shown in FIG. 2, the first fall prevention member 150 is suspended from the first rail 121 by the first main frame 131 fixed to the first rail 121. The second fall prevention member 250 is suspended from the second rail 122 by a second main frame 231 fixed to the second rail 122.

  Although not shown in FIG. 2, a plurality of first main frames 131 and second main frames 231 are arranged along the track 190.

  More specifically, the first fall prevention member 150 is supported by a first longitudinal frame 134 that is attached to the lower end portion of the first main frame 131 and is long in the extending direction of the first rail 121. The first longitudinal frame 134 is fastened to the holding portion 140 disposed at the lower end portion of the first main frame 131 with a bolt or the like.

  Further, in the present embodiment, the first longitudinal frame 134 is formed on the lower end portion of the first main frame 131 so that the end portion of the first longitudinal frame 134 protrudes until it overlaps the second fall prevention member 250 in a top view. It is attached. Thereby, the overlapping area W in the top view of the first fall prevention member 150 and the second fall prevention member 250 is formed.

  Similarly, the second fall prevention member 250 is supported by a second longitudinal frame 234 attached to the lower end portion of the second main frame 231, and the second longitudinal frame 234 is disposed at the lower end portion of the second main frame 231. The holding part 240 is fastened with bolts or the like.

  The first fall prevention member 150 is further supported by a first horizontal frame 136 that is elongated in the width direction (Y-axis direction), and the second fall prevention member 250 is further supported in the width direction (Y-axis). Is supported by a second horizontal frame 236 that is long in the direction).

  That is, as shown in FIGS. 2 and 4, the first fall prevention member 150 is supported by the longitudinal and width frames (the first longitudinal frame 134 and the first lateral frame 136). Similarly, the second fall prevention member 250 is supported by the longitudinal and width frames (second longitudinal frame 234 and second lateral frame 236).

  In addition, as shown in FIG. 4, the second main frame 231 is the first main frame 231 in a side view so that the end portion of the first fall prevention member 150 is located above the end portion of the second fall prevention member 250. The size relationship and the positional relationship include the frame 131.

  In addition, the transport vehicle system 100 in the present embodiment further includes a first reinforcing frame 135 connected to an end portion of the first fall prevention member 150.

  Here, the overlapping region W of each end of the first fall prevention member 150 and the second fall prevention member 250 is located below the movable intermediate rail 125. Therefore, these ends cannot be held on the track 190 directly above, that is, the frame fixed to the intermediate rail 125.

  In addition, considering the case where the intermediate rail 125 is rotated in an emergency such as an earthquake, the overlapping region W at the end portion is compared with other regions below the track 190 because the load 80 or the transport vehicle 101 is dropped. This is an area that is considered highly likely.

  Therefore, in the present embodiment, a first reinforcing frame 135 that connects the upper portion of the first rail 121 and the end portion of the first fall prevention member 150 is provided. Specifically, as shown in FIG. 2, the direction from the vicinity of the attachment position of the first main frame 131 closest to the intermediate rail 125 to the first rail 121 toward the end of the first fall prevention member 150. A first reinforcing frame 135 is disposed on the first reinforcing frame 135. Thereby, the impact resistance of the first fall prevention member 150 is improved.

  In the present embodiment, a reinforcing member is also arranged on the second fall prevention member 250 side.

  Specifically, as shown in FIG. 2, the vicinity of the mounting position of the second main frame 231 closest to the intermediate rail 125 to the second rail 122 and the end portion of the second fall prevention member 250 are connected. A second reinforcing frame 235 having a bent portion is arranged.

  That is, the second reinforcing frame 235 is not a member that connects two points linearly like the first reinforcing frame 135, but a member that connects two points by two linear portions.

  Even if the 2nd reinforcement frame 235 is such a shape, it can improve the impact resistance of the member (2nd fall prevention member 250) to be reinforced similarly to the 1st reinforcement frame 135.

  As described above, in the present embodiment, each of the two end portions of the first fall prevention member 150 and the second fall prevention member 250 that overlap in the vertical direction is connected to the track 190 by the reinforcing frame (135, 235). Yes. Thereby, the safety | security improvement when the load 80 etc. fall in the intermediate rail 125 or its vicinity is aimed at.

  In addition, for example, when the intermediate rail 125 is relatively short, when it is not necessary to hold the end portions of the first fall prevention member 150 and the second fall prevention member 250, the reinforcing frame (135, 235) is not provided. Also good.

  Further, the transport vehicle system 100 may include only one of the first reinforcement frame 135 and the second reinforcement frame 235. That is, even when only one of the first reinforcing frame 135 and the second reinforcing frame 235 is used, the safety when the luggage 80 or the like falls on the intermediate rail 125 or in the vicinity thereof is improved.

  The first main frame 131 can be installed at an arbitrary position on the first rail 121 by using a groove provided on the upper surface of the first rail 121. Similarly, the second main frame 231 can be installed at an arbitrary position on the second rail 122.

  Each of the first longitudinal frame 134 and the second longitudinal frame 234 is also provided with a groove that facilitates adjustment of the position in the longitudinal direction.

  The characteristics of the structure for arranging the fall prevention members (150, 250) will be described with reference to FIGS.

  In addition, the structure for arrangement | positioning of the 1st fall prevention member 150 and the structure for arrangement | positioning of the 2nd fall prevention member 250 are substantially the same. Therefore, the characteristics of the structure for arranging the first fall prevention member 150 will be described below as a representative of the first fall prevention member 150 and the second fall prevention member 250.

  FIG. 5 is a perspective view showing an outline of a structure for disposing the first fall prevention member 150 in the embodiment. In FIG. 5, illustration of the mesh portion on the near side (X-axis positive direction side) of the first fall prevention member 150 is omitted.

  As shown in FIG. 5, one first fall prevention member 150 is suspended from the first rail 121 (not shown in FIG. 5) by at least two first main frames 131.

  The first main frame 131 has a fixing portion 132 that is fixed to the first rail 121 at the center in the width direction.

  Further, the first longitudinal frame 134 is disposed in a bridging manner on the holding portion 140 disposed at the lower end of each of the two first main frames 131 arranged in the X-axis direction.

  Note that one first longitudinal frame 134 may be fixed to at least two holding portions 140. For example, even if one first longitudinal frame 134 is fixed to three or more holding portions 140 arranged in the X-axis direction. Good.

  When attention is paid to one first main frame 131, the first horizontal frame 136 is disposed in a bridging manner on the two holding portions 140 disposed at both ends in the width direction.

  That is, one first fall prevention member 150 is supported by two first longitudinal frames 134 and one or more first horizontal frames 136. Specifically, the first fall prevention member 150, the first longitudinal frame 134, and the first horizontal frame 136 are fastened by a fastening member such as a bolt.

  For example, by preparing a wire mesh having a predetermined width corresponding to the length in the width direction of the first main frame 131 and cutting it to a length corresponding to the interval between the two first main frames 131, these two first main frames 131 are cut. The first fall prevention member 150 that is suspended from the frame 131 is produced.

  In the present embodiment, the basic structure for arranging the first fall prevention member 150 has the above-described structure, and the structure that facilitates the change of the distance between the two first main frames 131. have.

  FIG. 6 is a cross-sectional view showing an outline of a structure for attaching the first main frame 131 to the first rail 121.

  As shown in FIG. 6A, the first rail 121 has an I-shaped cross section as a whole, and a groove 121a is formed on the upper surface so as to be restricted from being extracted upward.

  Specifically, the first rail 121 is formed with two grooves 121a provided in parallel along the longitudinal direction (X-axis direction) on the upper surface.

  For example, as shown in FIG. 6B, a nut plate 300 that is a plate in which a nut is embedded or a plate integrally having a nut is inserted from each end of the two grooves 121a.

  Two such nut plates 300 are arranged side by side in the width direction of the first rail 121. Further, as shown in FIG. 6B, the bolt 301 that penetrates the fixing portion 132 of the first main frame 131 is screwed into the nut plate 300. As a result, the first main frame 131 is fixed to the first rail 121.

  Here, the nut plate 300 can be moved along the groove 121a, and can be arranged at any position in the longitudinal direction of the first rail 121 in principle.

  That is, the position of the first main frame 131 in the longitudinal direction of the first rail 121 can be easily changed. Therefore, for example, the first main frame 131 can be arranged at a predetermined interval on the straight portion of the first rail 121, and the first main frame 131 can be arranged at a different interval near the transfer port of the luggage 80. It is.

  Note that the number of bolts 301 for fixing one fixing portion 132 to the first rail 121 is not limited, and may be fixed by at least one bolt 301. That is, the number of grooves 121a provided on the upper surface of the first rail 121 may be one.

  Furthermore, in the present embodiment, as described above, the plurality of first main frames 131 that can be arranged at an arbitrary interval are supported, and the first longitudinal frame 134 is also fixed to the first main frame 131 at an arbitrary position. It has a groove that makes it possible.

  FIG. 7 is a cross-sectional view showing an outline of a structure for attaching the first longitudinal frame 134 to the first main frame 131.

  As shown in FIG. 7 (a), the first longitudinal frame 134 has a hollow rectangular cross section as a whole, and a groove 134a capable of restricting downward extraction is formed on the lower surface. Has been.

  For example, as shown in FIG. 7B, the nut plate 310 is inserted from the end of the groove 134a.

  Further, as shown in FIG. 7B, the bolt 311 penetrating the holding portion 140 attached to the first main frame 131 is screwed into the nut plate 310. Thereby, the first longitudinal frame 134 is fixed to the first main frame 131.

  Here, the nut plate 310 can be moved along the groove 134a, and can be arranged at any position in the longitudinal direction of the first longitudinal frame 134 in principle.

  That is, it is easy to change the position of the first rail 121 with respect to the first longitudinal frame 134 in the longitudinal direction.

  Therefore, as described above, even when the distance between the two first main frames 131 is changed, it is not necessary to perform a process for forming a new hole in the first longitudinal frame 134.

  That is, when paying attention to one first main frame 131, the position of the nut plate 310 in the first longitudinal frame 134 is changed according to the changed position of the first main frame 131, and the bolt 311 and the nut plate 310 Can be screwed together. By such an easy operation, the fixing operation of the first longitudinal frame 134 necessary after the position change of the first main frame 131 is completed.

  In addition, since it is easy to adjust the protruding distance of the first longitudinal frame 134 closest to the second fall prevention member 250 in the direction of the second fall prevention member 250, the first fall prevention member 150 and the second fall prevention member It is easy to adjust the length of the overlapping region W in a top view with 250.

  Note that the number of bolts 311 for fixing to the first longitudinal frame 134 is not limited to one holding portion 140, and may be fixed by at least one bolt 311. For example, two or more grooves 134a provided on the lower surface of the first longitudinal frame 134 may be provided.

  Further, for example, the grooves 134 a may be provided on all four side surfaces parallel to the longitudinal direction of the first longitudinal frame 134. In this case, the holding part 140 and the first longitudinal frame 134 can be fastened with the bolt 311 regardless of which side face of the first longitudinal frame 134 is directed to the holding part 140 side.

  As described above, in the transport vehicle system 100 according to the present embodiment, it is easy to change the interval between the two first main frames 131. That is, when three or more first main frames 131 are arranged along the longitudinal direction of the track 190, the adjacent first main frames 131 can be arranged so that the intervals between them are different from each other.

  FIG. 8 is a diagram illustrating an example of an arrangement layout of the plurality of first main frames 131.

  For example, it is assumed that five first main frames 131 are fixed to the first rail 121. In this case, as shown in FIG. 8, for example, the interval between the first main frames 131 from the left to the third main frame 131 is aligned with L1, and the two right first main frames 131 are different from L1 (L2, L3). Can be arranged.

  In addition, even when a plurality of first main frames 131 are arranged so that the intervals between the first main frames 131 are different in this way, as described above, for example, by cutting a wire mesh by a necessary length, One or more first fall prevention members 150 suspended from the plurality of first main frames 131 can be produced.

  Thus, in the carrier vehicle system 100 of the present embodiment, the degree of freedom with respect to the layout of the plurality of first main frames 131 is high. Therefore, for example, even when the layout of the track 190 is complicated, a large number of the first main frames 131 can be installed. That is, the area where safety can be secured by the first fall prevention member 150 can be set widely.

  In addition, the characteristic of the structure for arrangement | positioning of the 1st fall prevention member 150 demonstrated above is applied also to the 2nd fall prevention member 250 as mentioned above.

  That is, in the transport vehicle system 100 of the present embodiment, the influence of the layout of the track 190 on the second fall prevention member 250 is suppressed, and a region where safety can be secured by the second fall prevention member 250 is widened. Can be set.

  In the present embodiment, the first fall prevention member 150 and the second fall prevention member 250 are members that are installed below the track 190 and spread in the horizontal direction, and serve to receive an object falling from above from below. Plays.

  However, the transport vehicle system 100 of the present embodiment can further improve safety by further including a fall prevention member that extends in a direction intersecting the horizontal direction.

  FIG. 9 is a front view illustrating another example of the configuration outline in the building boundary region A of the transport vehicle system 100.

  The transport vehicle system 100 shown in FIG. 9 is provided with a side fall prevention member that is provided at a position corresponding to the side of the transport vehicle 101 when the transport vehicle 101 is positioned on the intermediate rail 125 and extends in a direction intersecting the horizontal direction. 160 and 260.

  In FIG. 9, each of the side fall prevention members 160 and 260 is represented by a dotted line indicating an outer shape, and illustration of a mesh or the like is omitted.

  The side fall prevention member 160 is realized by, for example, a net-like member (for example, a wire net) attached to the first main frame 131, the first reinforcing frame 135, and the side longitudinal frame 137.

  The side fall prevention member 260 is realized by, for example, a net-like member (for example, a wire net) attached to the second main frame 231, the second reinforcing frame 235, and the side longitudinal frame 237.

  By these side fall prevention members 160 and 260, for example, safety in the event of an earthquake is improved. That is, it is assumed that the intermediate rail 125 rotates at the time of the occurrence of the earthquake, and for example, the transport vehicle 101 moves off the track 190 and heads obliquely downward. Even in this case, the transport vehicle 101 is received by the first fall prevention member 150, the second fall prevention member 250, and the side fall prevention members 160 and 260. In other words, the safety in the movable intermediate rail 125 and the vicinity thereof is further improved.

  The transport vehicle system 100 may include only at least one of the side fall prevention members 160 and 260. That is, if at least one of the side fall prevention members 160 and 260 is arranged, the safety in the intermediate rail 125 and the intermediate rail 125 and the area in the vicinity thereof is improved.

  In the present embodiment, the fall prevention members such as the first fall prevention member 150 are suspended from the frame fixed to the rail. However, the fall prevention member such as the first fall prevention member 150 may be hung by a frame fixed to an element other than a rail such as a ceiling of a building.

  For example, the first fall prevention member 150 may be suspended by a frame that is fixed to the ceiling 11a of the first building 11 and that is long in the downward direction.

  That is, the transport vehicle system 100 is configured such that the first fall prevention member 150 swings with the swing of the first building 11 and the second fall prevention member 250 swings with the swing of the second building 12. It is possible to improve safety in a region including

  Moreover, in this Embodiment, the 1st fall prevention member 150 is arrange | positioned above the 2nd fall prevention member 250 in the up-down direction (for example, refer FIGS. 2-4).

  However, the second fall prevention member 250 may be disposed above the first fall prevention member 150 in the vertical direction.

  In this case, the magnitude relationship between the first main frame 131 and the second main frame 231 is opposite to the magnitude relationship illustrated in FIG. 4, for example. That is, the first main frame 131 includes a second main frame 231 in a side view so that the end of the second fall prevention member 250 is positioned above the end of the first fall prevention member 150. Relationship and positional relationship.

  That is, in order to distinguish two rails that are physically separate from each other and form a connection path that connects two buildings, in the present specification and the like, “first rail” and “second rail” The name is attached. The same applies to other members, and the names “first fall prevention member” and “second fall prevention member” are attached to distinguish two physically separate fall prevention members. ing. That is, the vertical positional relationship and the horizontal positional relationship of these fall prevention members may be opposite to those in the above embodiment.

  The transport vehicle system of the present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiment. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art, or forms constructed by combining a plurality of constituent elements described above are also included in the scope of the present invention. It is.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a transport vehicle system including a ceiling transport vehicle that travels along a track disposed on a ceiling and transports a load from one place to another.

DESCRIPTION OF SYMBOLS 11 1st building 11a Ceiling 12 2nd building 12a Ceiling 51 1st bay 52 2nd bay 80 Luggage 100 Transport vehicle system 101 Transport vehicle 121 1st rail 121a, 134a Groove 122 2nd rail 125 Middle rail 131 1st main frame 132 Fixed part 134 First longitudinal frame 135 First reinforcing frame 136 First lateral frame 137, 237 Side longitudinal frame 140, 240 Holding part 150 First fall prevention member 160, 260 Side fall prevention member 190 Track 231 Second main frame 234 Second longitudinal frame 235 Second reinforcing frame 236 Second horizontal frame 250 Second fall prevention member 300, 310 Nut plate 301, 311 Bolt

Claims (5)

A transport vehicle system including a transport vehicle that travels along a track,
The track includes a first rail arranged in a suspended manner in the first building, and a second rail arranged in a suspended shape in the second building and connected to the first rail,
The transport vehicle system includes:
A first fall prevention member that is fixed to the first building in a suspended form and is arranged below the first rail and spreads in the horizontal direction,
A second drop-preventing member that is fixed to the second building in a suspended form and is arranged below the second rail and spreads in the horizontal direction;
The transport vehicle system, wherein the first fall prevention member and the second fall prevention member are arranged such that their end portions are spaced apart from each other by a predetermined distance in the vertical direction and overlap in a top view. The first fall prevention member is suspended from the first rail by a first main frame fixed to the first rail,
The transport vehicle system according to claim 1, wherein the second fall prevention member is suspended from the second rail by a second main frame fixed to the second rail. The first fall prevention member is attached to a lower end portion of the first main frame, and is supported by an elongated frame that is long in the extending direction of the first rail,
The transport vehicle system according to claim 2, wherein the longitudinal frame is attached to a lower end portion of the first main frame so that the end portion of the longitudinal frame protrudes until the end portion of the longitudinal frame overlaps the second fall prevention member in a top view. . The first rail and the second rail are connected via an intermediate rail movably fixed to one of the first rail and the second rail,
The ends of the first fall prevention member and the second fall prevention member, which are arranged so as to overlap in a top view, are located below the intermediate rail,
The transport vehicle system according to any one of claims 1 to 3, wherein the transport vehicle system further includes a reinforcing frame that connects the upper portion of the first rail and the end portion of the first fall prevention member. 5. The conveyance according to claim 4, further comprising a side fall prevention member provided at a position corresponding to a side of the conveyance vehicle when the conveyance vehicle is positioned on the intermediate rail and extending in a direction intersecting a horizontal direction. Car system.

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