JP5810928B2 - Tracked vehicle system - Google Patents

Description

  The present invention relates to a tracked vehicle system including a plurality of traveling vehicles that travel along the same end rail.

  2. Description of the Related Art Conventionally, there is an automatic warehouse that includes a rack that can store a plurality of packages and a transfer device that transfers the packages. In such an automatic warehouse, a traveling vehicle (for example, a stacker crane) having a transfer device performs transportation of the luggage and delivery of the luggage to and from the rack.

  Conventionally, there is a tracked vehicle system that includes a plurality of stacker cranes that travel along the same end rail. In the tracked vehicle system, for example, one of a plurality of racks arranged along the end rail is assigned to each of these stacker cranes as an object for carrying a load.

  FIG. 15 is a schematic diagram illustrating an example of the configuration of a conventional tracked vehicle system 500.

  As shown in FIG. 15, a conventional tracked vehicle system 500 includes an upper rail 111 and a lower rail 112, and a stacker crane 150 and a stacker crane 160 that travel while being guided by the upper rail 111 and the lower rail 112.

  The stacker crane 150 is assigned area-A, and loads are transferred to and from the rack 180 arranged in the area-A. Further, area-B is allocated to the stacker crane 160, and the cargo is transferred to and from the rack 182 arranged in area-B.

  Further, an upper end stopper 170 and an upper end stopper 172 are disposed at the left and right ends of the upper rail 111. A lower end stopper 171 and a lower end stopper 173 are disposed at the left and right ends of the lower rail 112.

  Further, an upper intermediate stopper 140a and an upper intermediate stopper 140b, and a lower intermediate stopper 145a and a lower intermediate stopper 145b are disposed at a position between the stacker crane 150 and the stacker crane 160.

  That is, the stacker crane 150 is restricted from moving in the left direction by the upper end stopper 170 and the lower end stopper 171 and is restricted from moving in the right direction by the upper intermediate stopper 140a and the lower intermediate stopper 145a.

  Further, the stacker crane 160 is restricted from moving in the right direction by the upper end stopper 172 and the lower end stopper 173, and is restricted from moving in the left direction by the upper intermediate stopper 140b and the lower intermediate stopper 145b.

  As described above, by arranging the plurality of stoppers, the stacker crane 150 and the stacker crane 160 are prevented from moving outside the upper rail 111 and the lower rail 112. Furthermore, interference between the stacker crane 150 and the stacker crane 160 is prevented.

  In addition, the technique about the stopper of such a stacker crane is also disclosed (for example, refer patent document 1).

  According to the technique described in Patent Document 1, by attaching a damper that restricts the movement of the stacker crane at the end of the rail to the rail itself, it is possible to simplify the mounting structure of the damper and to distribute the impact received by the damper. Can be planned.

Japanese Utility Model Publication No.4-117889

  As described above, when two traveling vehicles travel along the same end rail, a stopper that restricts the movement of each traveling vehicle is disposed at a predetermined position between the two traveling vehicles by 2 Interference of two traveling vehicles is prevented.

  Here, for example, a case is assumed in which the cargo transport operation is stopped due to a problem in one of the two traveling vehicles. In this case, a measure may be considered in which the other traveling vehicle is caused to enter the area so that the other traveling vehicle takes charge of at least a part of the area.

  By executing this measure, it is possible to minimize a decrease in work efficiency due to a situation in which one of the two traveling vehicles has to stop the conveyance work.

  For example, in the conventional tracked vehicle system 500 shown in FIG. 15, a case where some trouble occurs in the stacker crane 150 is assumed.

  In this case, the following work is required. That is, when the position of the stacker crane 150 at that time is not the left end, the stacker crane 150 is moved to the positions of the upper end stopper 170 and the lower end stopper 171 at the left end. Thereafter, the upper intermediate stopper 140a, the lower intermediate stopper 145a, the upper intermediate stopper 140b, and the lower intermediate stopper 145b are arranged at the right position of the stacker crane 150.

  That is, it is necessary to temporarily remove the four stoppers positioned between the stacker crane 150 and the stacker crane 160 and attach them to the right side of the stacker crane 150 brought to the left end.

  These stoppers are generally heavy structures. For this reason, for example, it is not easy to remove the lower intermediate stoppers 145a and 145b fixed to the floor surface with bolts from the floor surface and transport and attach them to a predetermined position on the left side.

  Moreover, the work of removing the upper intermediate stoppers 140a and 140b fixed to the upper rail 111 or the member that supports the upper rail 111, and transporting and attaching it to a predetermined position on the left side takes a lot of labor and time. Required.

  Specifically, since the upper rail 111 is at a high position (for example, a height of 30 m or more from the floor), it is necessary to assemble a scaffold for removing and attaching the upper intermediate stoppers 140a and 140b. Further, the upper intermediate stoppers 140a and 140b released by the operator from the scaffold are released from the vicinity of the upper rail 111, and then the upper intermediate stopper is moved up to the scaffold assembled at a predetermined position on the left side. The operation | work which attaches 140a and 140b is needed.

  Thus, for example, most of the working time of the day may be spent for removal and installation.

  The present invention is a tracked vehicle system including two traveling vehicles that travel along the same end rail in consideration of the above-described conventional problems, and safely and efficiently transports luggage by the two traveling vehicles. An object of the present invention is to provide a tracked vehicle system capable of performing work.

  In order to achieve the above object, a tracked vehicle system according to one aspect of the present invention includes an upper rail that is an end rail, and a lower rail that is an end rail disposed below the upper rail, respectively. Are arranged at positions between the two traveling vehicles that travel while being guided by the upper rails and the respective lower end portions being guided by the lower rails, and the two traveling vehicles on the upper rails. A first stopper for restricting movement of at least one of the two traveling vehicles, the first stopper being engaged with the upper rail so as to be movable along the upper rail. The position of the first stopper with respect to the upper rail is fixed at at least two predetermined positions separated from each other in a longitudinal direction of the upper rail. And a fixing portion capable of.

  According to this configuration, the stopper (first stopper) located between the two traveling vehicles on the upper rail can be easily moved along the upper rail, and is fixed at a predetermined position after the movement. be able to. That is, it is possible to easily execute the movement and fixing of the first stopper so as to narrow one traveling range of the two traveling vehicles and widen the other traveling range.

  Therefore, according to the tracked vehicle system of this aspect, the tracked vehicle system includes two traveling vehicles that travel along the same end rail, and the safe and efficient luggage by the two traveling vehicles. Can be carried out.

  The tracked vehicle system according to an aspect of the present invention is further arranged at a position between the two traveling vehicles on the lower rail so as to be movable along the lower rail. The first stopper and the second stopper are moved simultaneously by connecting the second stopper for restricting the movement of at least one of the traveling vehicles, and the first stopper and the second stopper. It is good also as providing the connection frame to be made.

  According to this configuration, the stopper (second stopper) located between the two traveling vehicles on the lower rail and the upper first stopper can be moved simultaneously. In other words, the safety of each of the two traveling vehicles can be further improved by the two upper and lower stoppers, and the change of the allocation of the traveling range to the two traveling vehicles can be executed efficiently.

  In the tracked vehicle system according to one aspect of the present invention, the connection frame may be provided between the first stopper and the second stopper, and may include a ladder portion that allows an operator to move up and down.

  According to this configuration, for example, an operator can easily access the fixing portion of the first stopper. That is, the direct operation on the fixing portion by the operator is facilitated, and as a result, the first stopper can be fixed and released efficiently.

  In addition, the tracked vehicle system according to an aspect of the present invention further includes a mechanism that is connected to the fixing portion and that can fix and release the first stopper from below the first stopper. An operation unit may be provided.

  According to this configuration, for example, an operator existing on the floor surface on which the lower rail is installed can easily fix and release the first stopper from the position. That is, the work related to the change of the allocation of the travel range for the two traveling vehicles is performed more efficiently.

  The present invention can also be realized as a method for changing the traveling range of a traveling vehicle, including characteristic processing executed by the tracked traveling vehicle system according to any one of the above aspects. In addition, the present invention can be realized as a program for causing a computer to execute each process included in the method for changing the travel range of the traveling vehicle, and as a recording medium on which the program is recorded. The program can be distributed via a transmission medium such as the Internet or a recording medium such as a DVD.

  According to the present invention, it is a tracked vehicle system including two traveling vehicles that travel along the same end rail, and can perform a safe and efficient cargo transportation operation by the two traveling vehicles. A tracked vehicle system can be provided.

FIG. 1 is a perspective view showing a configuration outline of an automatic warehouse in the embodiment. FIG. 2 is a front view illustrating a configuration outline of the tracked vehicle system according to the embodiment. FIG. 3 is a first top view showing an outline of the configuration of the tracked vehicle system in the embodiment. FIG. 4 is a second top view showing an outline of the configuration of the tracked vehicle system in the embodiment. FIG. 5 is a front view showing a first example of the configuration of the first stopper in the embodiment. FIG. 6 is a side view and a top view of the first stopper shown in FIG. FIG. 7 is a front view showing a second example of the configuration of the first stopper in the embodiment. FIG. 8 is a side view of the first stopper shown in FIG. FIG. 9 is a front view showing a configuration example of the second stopper in the embodiment. FIG. 10 is a side view of the second stopper shown in FIG. FIG. 11 is a diagram illustrating an overview of the operation unit according to the embodiment. FIG. 12 is a diagram illustrating a configuration example of the operation unit in the embodiment. FIG. 13 is a front view showing a configuration example of the first stopper that moves while being suspended from the upper rail. FIG. 14 is a side view of the first stopper shown in FIG. FIG. 15 is a schematic diagram illustrating an example of a configuration of a conventional tracked vehicle system.

  Hereinafter, a tracked 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 the embodiments described below, preferred specific examples of the present invention are shown. The numerical values, shapes, components, arrangement of components and connection forms shown in the embodiments are merely examples, and are not intended to limit the present invention. The present invention is limited by the claims. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims are not necessarily required to achieve the object of the present invention, but are described as elements that constitute a more preferable embodiment. The

  First, the outline | summary of a structure of the automatic warehouse 100 and the tracked vehicle system 10 in embodiment of this invention is demonstrated using FIG. 1 and FIG.

  FIG. 1 is a perspective view showing a configuration outline of an automatic warehouse 100 according to the embodiment.

  FIG. 2 is a front view illustrating a configuration outline of the tracked vehicle system 10 according to the embodiment.

  As shown in FIG. 1, the automatic warehouse 100 according to the embodiment includes a tracked vehicle system 10 including a stacker crane 50.

  As shown in FIGS. 1 and 2, the tracked vehicle system 10 includes an upper rail 11, a lower rail 12 disposed below the upper rail 11, a stacker crane 50, and a stacker crane 60.

  Each of the upper rail 11 and the lower rail 12 is an end rail. Each of the stacker crane 50 and the stacker crane 60 is an example of a traveling vehicle, and travels while the upper end portion is guided by the upper rail 11 and the lower end portion is guided by the lower rail 12.

  For example, the stacker crane 50 includes a lower cart 53 and an upper cart 54, and the cart 53 travels along the lower rail 12, and the cart 54 travels along the upper rail 11. Thereby, the stacker crane 50 as a whole moves in the X-axis direction.

  Moreover, the stacker crane 50 has the transfer apparatus 52 and the raising / lowering stand 51 which raises / lowers the transfer apparatus 52 as shown in FIG. In addition, although the transfer apparatus 52 in this Embodiment employ | adopts the transfer method which transfers a load with a slide fork, there is no limitation in particular in the transfer method which the transfer apparatus 52 employ | adopts.

  The stacker crane 50 travels along the upper rail 11 and the lower rail 12, raises and lowers the lifting platform 51, and moves the slide fork of the transfer device 52 back and forth. By adopting such a configuration, the stacker crane 50 can deliver the load 90 between the rack 80 and the station 58 and the like.

  The station 58 is a temporary placement place for the luggage 90. For example, the luggage 90 stored in the rack 80 is temporarily placed in the station 58 and then carried out of the automatic warehouse 100.

  Further, since the stacker crane 60 has the same configuration as the stacker crane 50, detailed description thereof is omitted.

  Different areas are assigned to the stacker crane 50 and the stacker crane 60 in the present embodiment as objects for carrying the cargo. Specifically, as shown in FIG. 2, area-A is assigned to the stacker crane 50, and area-B is assigned to the stacker crane 60.

  That is, the stacker crane 50 transfers the load between the rack 80 and the like arranged in the area-A, and the stacker crane 60 transfers the load between the rack 82 and the like arranged in the area-B. To do.

  The tracked vehicle system 10 includes a first stopper 20 for restricting movement of at least one of the stacker crane 50 and the stacker crane 60.

  As shown in FIG. 2, the first stopper 20 is arranged at a position between the stacker crane 50 and the stacker crane 60 in the upper rail 11.

  The tracked vehicle system 10 of the present embodiment further includes a second stopper 30 for restricting the movement of at least one of the stacker crane 50 and the stacker crane 60.

  As shown in FIG. 2, the second stopper 30 is arranged at a position between the stacker crane 50 and the stacker crane 60 in the lower rail 12.

  In the present embodiment, the first stopper 20 and the second stopper 30 have a function and a configuration for restricting movement of both the stacker crane 50 and the stacker crane 60.

  That is, as shown in FIG. 2, when the first stopper 20 and the second stopper 30 are fixed at a position between the area-A and the area-B, the stacker crane 50 cannot enter the area-B. In addition, the stacker crane 60 cannot enter the area-A.

  Further, as shown in FIG. 2, an upper end stopper 70 and an upper end stopper 72 are arranged at the left and right ends of the upper rail 11, respectively, and a lower end stopper 71 and a lower end stopper 71 are arranged at the left and right ends of the lower rail 12, respectively. A lower end stopper 73 is disposed.

  Therefore, the plurality of stoppers prevent the stacker crane 50 and the stacker crane 60 from interfering with each other, and the movement of the stacker crane 50 and the stacker crane 60 from the upper rail 11 and the lower rail 12 to the outside is restricted. Is done.

  As a result, the stacker crane 50 can safely carry a load in the area-A, and the stacker crane 60 can safely carry a load in the area-B.

  Moreover, the 1st stopper 20 and the 2nd stopper 30 are connected by the flame | frame 40, Thereby, the 1st stopper 20 and the 2nd stopper 30 can be moved simultaneously.

  Specifically, the first stopper 20 is movably attached to the upper rail 11, and the second stopper 30 is movably attached to the lower rail 12. Details of the first stopper 20 and the second stopper 30 will be described later with reference to FIGS.

  Moreover, in this Embodiment, the flame | frame 40 is arrange | positioned between the 1st stopper 20 and the 2nd stopper 30, and has the ladder part 41 which an operator can raise / lower.

  The operator can easily access the first stopper 20 by climbing the ladder portion 41. As a result, for example, the position of the first stopper 20 can be easily fixed and released.

  Next, changes in the positions of the first stopper 20 and the second stopper 30 will be described with reference to FIGS. 3 and 4.

  FIG. 3 is a first top view illustrating a schematic configuration of the tracked vehicle system 10 according to the embodiment.

  FIG. 4 is a second top view showing a configuration outline of the tracked vehicle system 10 in the embodiment.

  3 and 4 show the configuration when the tracked vehicle system 10 is viewed from above, the configuration of the lower portion of the tracked vehicle system 10 such as the lower rail 12 and the second stopper 30. Illustration of elements is omitted.

  The second stopper 30 is connected to the first stopper 20 by the frame 40 as described above, and is present at the same position (including substantially the same) as the first stopper 20 on the XY plane in FIGS. 3 and 4. doing.

  In the present embodiment, the first stopper 20 and the second stopper 30 are fixed at a position between the area-A and the area-B (first fixing position). That is, as described above, area-A is assigned to the stacker crane 50 (crane-A in FIGS. 3 and 4), and area-B is assigned to the stacker crane 60 (crane-B in FIGS. 3 and 4). Assigned.

  In addition, in area-A, a rack 80 and a rack 81 are disposed with the upper rail 11 and the lower rail 12 interposed therebetween, and in area-B, a rack 82 and a rack 83 are disposed with the upper rail 11 and the lower rail 12 interposed therebetween. Is arranged.

  That is, in a normal state, the crane-A can transfer the load between the rack 80 and the rack 81, and the crane-B can transfer the load between the rack 82 and the rack 83. Transfer can be performed.

  However, for example, it is assumed that the crane-A stops the work of transporting the load due to a failure such as a failure.

  In this case, the baggage cannot be unloaded from the area-A and loaded into the area-A. Therefore, the positions of the first stopper 20 and the second stopper 30 are changed so that at least a part of the area-A is allocated to the crane-B.

  Specifically, as shown in FIG. 4, the crane-A is moved to a position farthest from the area-B (the left end in FIG. 4). Furthermore, the first stopper 20 is moved along the upper rail 11 and moved to the second rail 30 along the lower rail 12 to a position close to or in contact with the crane A after movement (second fixed position). Let Thereafter, the positions of the first stopper 20 and the second stopper 30 are fixed.

  Thereby, as shown in FIG. 4, the traveling range of the crane-B extends beyond the area-B and into the area-A. As a result, the crane-B can safely carry out the luggage from at least a part of the rack 80 and the rack 81 in the area-A and can safely carry the luggage into the at least part.

  Here, each of the first stopper 20 and the second stopper 30 has a configuration capable of easily changing the position and fixing the position as described above. Then, the structural example of the 1st stopper 20 and the 2nd stopper 30 is demonstrated using FIGS.

  FIG. 5 is a front view showing a first example of the configuration of the first stopper 20 in the embodiment.

  6 is a side view and a top view of the first stopper 20 shown in FIG. In FIG. 6, the illustration of the frame 40 is omitted.

  As shown in FIGS. 5 and 6, the first stopper 20 includes an engagement portion 21 that engages with the upper rail 11 so as to be movable along the upper rail 11, and a longitudinal direction (X-axis direction) of the upper rail 11. And a fixing portion 23 that can fix the position of the first stopper 20 with respect to the upper rail 11 at at least two predetermined positions apart from each other.

  In the present embodiment, the cross section of the upper rail 11 parallel to the YZ plane is T-shaped as shown in FIG. Further, as shown in FIGS. 6A and 6B, the engaging portion 21 has two sets of guide rollers 22 provided so as to sandwich a portion parallel to the Z-axis direction of the upper rail 11. Thereby, the first stopper 20 supported by the frame 40 from below can be moved in the X-axis direction together with the second stopper 30 while being guided by the upper rail 11.

  Note that the carts at the top of the stacker crane 50 and the stacker crane 60 have guide rollers provided so as to sandwich a portion of the upper rail 11 parallel to the Z-axis direction, like the first stopper 20.

  That is, the first stopper 20 employs a structure that moves using the upper rail 11 for traveling of the stacker crane 50 and the stacker crane 60 as they are.

  Moreover, the 1st stopper 20 is provided with the buffer part 24 in the both ends of a X-axis direction, as shown in FIG. The buffer portion 24 is made of urethane, for example. The shock when each of the stacker crane 50 and the stacker crane 60 comes into contact with the first stopper 20 is absorbed by each buffer portion 24.

  Moreover, in this Embodiment, the fixing | fixed part 23 is a metal rod body arrange | positioned at the engaging part 21, for example, and the fixing | fixed part 23 penetrates the upper rail 11 to a horizontal direction (Y-axis direction). Thus, the position of the first stopper 20 is fixed. More specifically, the fixing portion 23 is inserted or screwed into holes provided at the first fixing position and the second fixing position (see FIGS. 3 and 4) of the upper rail 11. Thereby, the position of the first stopper 20 is fixed at the first fixed position or the second fixed position.

  Moreover, the fixing of the position of the first stopper 20 is released by extracting the fixing portion 23 from the hole of the upper rail 11.

  Various methods and structures can be adopted as a method and structure for fixing the position of the first stopper 20 by the fixing portion 23.

  FIG. 7 is a front view showing a second example of the configuration of the first stopper 20 in the embodiment.

  FIG. 8 is a side view of the first stopper 20 shown in FIG. In FIG. 8, the frame 40 is not shown.

  For example, as shown in FIGS. 7 and 8, the fixing portion 23 of the first stopper 20 may be a rod that penetrates the upper rail 11 in the vertical direction (Z-axis direction).

  Moreover, the 1st stopper 20 may have the some fixing | fixed part 23, as shown in FIG.7 and FIG.8.

  That is, in the fixing portion 23 that fixes the position of the first stopper 20 by penetrating the upper rail 11, the direction of penetration with respect to the upper rail 11 is not limited to a specific direction. Moreover, if the number of the penetration parts is also 1 or more, it is not limited to a specific number.

  Moreover, the fixing | fixed part 23 does not need to penetrate the upper rail 11, and should just have the shape and structure engaged with the upper rail 11 so that the movement of the X-axis direction of the 1st stopper 20 can be controlled. .

  Moreover, you may fix the position of the 1st stopper 20 by having the structure which engages with the member or ceiling surface which supports the upper rail 11 instead of the upper rail 11, for example.

  In short, as long as the position of the first stopper 20 can be fixed and unlocked at at least two predetermined positions of the upper rail 11, the fixing portion 23 may adopt any technique and structure.

  When the configuration of the first stopper 20 is one of FIGS. 5 and 7, for example, the position of the first stopper 20 is fixed and the fixing is released by an operator's manual operation.

  However, as shown in FIG. 2, a ladder portion 41 is installed on the frame 40 that connects the first stopper 20 and the second stopper 30. Therefore, the operator can easily perform operations for fixing and releasing the position of the first stopper 20.

  That is, it is not necessary to assemble a scaffold to access the first stopper 20 present at a high place, and the operator can easily and immediately operate the fixing portion 23 of the first stopper 20.

  Furthermore, after the operator releases the fixing of the position of the first stopper 20 by the fixing portion 23, the operator does not have to remove the first stopper 20 from the position. The operator confirms that the position of the second stopper 30 is also released, and moves the first stopper 20 and the second stopper 30 easily by pushing the frame 40 in the X-axis direction, for example. be able to.

  Also, the second stopper 30 connected to the first stopper 20 by the frame 40 has a configuration in which the position can be easily changed and the position can be fixed similarly to the first stopper 20.

  FIG. 9 is a front view showing a configuration example of the second stopper 30 in the embodiment.

  FIG. 10 is a side view of the second stopper 30 shown in FIG. In FIG. 10, the frame 40 is not shown.

  As shown in FIGS. 9 and 10, the second stopper 30 is arranged so as to be movable along the lower rail 12.

  Specifically, the second stopper 30 includes an engaging portion 31 that is movably engaged with the lower rail 12 and at least two predetermined positions that are separated in the longitudinal direction (X-axis direction) of the lower rail 12. And a fixing portion 34 to which the second stopper 30 can be fixed.

  In this embodiment, as shown in FIG. 10, the engaging portion 31 includes two wheels 32 that rotate in contact with the upper surface of the lower rail 12 and two sets of guides provided so as to sandwich the lower rail 12. And a roller 33.

  Thereby, the second stopper 30 can stably move in the X-axis direction while being guided by the lower rail 12.

  Note that the lower carts of the stacker crane 50 and the stacker crane 60 sandwich the wheel that rotates in contact with the upper surface of the lower rail 12 and the portion of the upper rail 11 parallel to the Z-axis direction, like the second stopper 30. And a guide roller provided as described above.

  That is, the second stopper 30 employs a structure that moves using the lower rail 12 for traveling the stacker crane 50 and the stacker crane 60 as they are.

  Moreover, the 2nd stopper 30 is provided with the buffer part 35 at the both ends of a X-axis direction, as shown in FIG. The shock when each of the stacker crane 50 and the stacker crane 60 comes into contact with the second stopper 30 is absorbed by each buffer portion 35.

  Moreover, in this Embodiment, the fixing | fixed part 34 is a metal rod body arrange | positioned at the engaging part 31, for example. A plurality of fixing portions 34 are arranged on the engaging portion 31. These fixing parts 34 are inserted or screwed into holes corresponding to the first fixing position or the second fixing position provided on the floor surface on which the lower rail 12 is installed. Thereby, the position of the second stopper 30 is fixed at the first fixed position or the second fixed position.

  The fixing portion 34 is the same as the fixing portion 23 of the first stopper 20 in that various methods and structures can be adopted as the method and structure for fixing the position of the second stopper 30.

  For example, the fixing portion 34 may have a structure that engages with the lower rail 12, thereby fixing the position of the second stopper 30.

  In the present embodiment, as described above, for example, when the operator presses the frame 40 in the X-axis direction, the first stopper 20 and the second stopper 30 can be simultaneously moved in the pressing direction. .

  That is, in the present embodiment, a configuration is adopted in which the first stopper 20 and the second stopper 30 are moved manually. However, like the stacker crane 50 and the stacker crane 60, the first stopper 20 and the second stopper 30 may be moved by a power source such as a motor.

  For example, the second stopper 30 is moved along the lower rail 12 by rotationally driving the wheels 32 of the second stopper 30 with a motor. Thereby, the 2nd stopper 30 and the 1st stopper 20 connected with the 2nd stopper 30 with the flame | frame 40 can be moved simultaneously.

  As described above, the first stopper 20 is movable along the upper rail 11 and can be fixed at at least two positions. The second stopper 30 is movable along the lower rail 12 and can be fixed at at least two positions.

  For example, as shown in FIGS. 3 and 4, the first stopper 20 and the second stopper 30 can be fixed at two positions (first fixing position and second fixing position) separated in the X-axis direction.

  The first stopper 20 and the second stopper 30 are connected by a frame 40, and a ladder portion 41 is installed on the frame 40. Thereby, fixation and release of the first stopper 20 and the second stopper 30 are facilitated, and movement of the first stopper 20 and the second stopper 30 is also facilitated.

  That is, it is possible to efficiently change the assignment of the travel range to each of the stacker crane 50 and the stacker crane 60.

  In the present embodiment, the worker climbs the ladder portion 41 and accesses the first stopper 20 to fix the position of the first stopper 20 and release the fixing.

  However, as shown in FIG. 11, the tracked vehicle system 10 includes an operation unit 45 for fixing the position of the first stopper 20 and releasing the fixing while the operator remains on the floor surface. Also good.

  For example, as shown in FIG. 12, the tracked vehicle system 10 may include an operation unit 45 having an expansion / contraction mechanism 46 and a connecting member 47.

  The expansion / contraction mechanism 46 shown in FIG. 12 is a screw-type jack, and is fixed to the frame 40, for example, and connected to the fixing portion 23 of the first stopper 20 by a connecting member 47.

  In the operation unit 45 having such a configuration, as shown in FIG. 12A, when the height of the expansion / contraction mechanism 46 is reduced, the fixing unit 23 is extracted downward from the upper rail 11. Thereby, the fixing of the position of the first stopper 20 is released, and the first stopper 20 can move with respect to the upper rail 11.

  Further, as shown in FIG. 12B, when the height of the telescopic mechanism 46 is extended, the fixing portion 23 is inserted into the hole of the upper rail 11 via the engaging portion 21. Thereby, the position of the first stopper 20 is fixed, and the first stopper 20 is fixed to the upper rail 11.

  As described above, the tracked vehicle system 10 is connected to the fixing portion 23 of the first stopper 20, and the operation portion 45 that can fix and release the first stopper 20 from below the first stopper 20. May be provided. Thereby, for example, an operator existing on the floor surface on which the lower rail 12 is installed can easily fix and release the first stopper 20 from the position.

  The mechanism of the operation unit 45 may be other than the mechanism shown in FIG. For example, at the time of fixing, the state where the fixing portion 23 is inserted into the hole of the upper rail 11 by the biasing force of the spring is maintained. Further, when releasing the fixing, the wire connected to the fixing portion 23 is wound up by a reel attached to the frame 40.

  The operation unit 45 can also perform fixing and releasing of the position of the first stopper 20 by the fixing unit 23 from below the first stopper 20 by adopting such a mechanism.

  Similarly, the fixing portion 34 of the second stopper 30 may be fixed and released via the operation portion 45.

  For example, in FIG. 12, the lower end of the expansion / contraction mechanism 46 and the fixed part 34 are connected, and the expansion / contraction mechanism 46 is attached to the frame 40 so that the upper end and the lower end of the expansion / contraction mechanism 46 can move up and down. .

  In this way, when the height of the expansion / contraction mechanism 46 is reduced, the fixing portion 23 moves downward and the fixing portion 34 moves upward. As a result, the fixation of the first stopper 20 and the second stopper 30 is released. Further, when the height of the telescopic mechanism 46 is extended, the fixing portion 23 moves upward and the fixing portion 34 moves downward. As a result, the positions of the first stopper 20 and the second stopper 30 are fixed.

  In this manner, the first stopper 20 and the second stopper 30 can be fixed and released in a batch by operating the operation unit 45.

  Further, the operation unit 45 has a mechanism for connecting a power source such as a motor and the fixing unit 23, and uses the electric energy to fix and release the position of the first stopper 20 by the fixing unit 23. May be.

  In the present embodiment, the tracked vehicle system 10 includes the first stopper 20 and the second stopper 30 between two traveling vehicles (the stacker crane 50 and the stacker crane 60).

  However, only the first stopper 20 of the first stopper 20 and the second stopper 30 may be provided.

  Further, the first stopper 20 and the second stopper 30 may not be connected by the frame 40. That is, the first stopper 20 and the second stopper 30 may move in the X-axis direction independently of each other.

  In this case, the first stopper 20 loses support from below by the frame 40. However, in this case, the first stopper 20 may be configured to be suspended by the upper rail 11 while being guided by the upper rail 11 in the X-axis direction.

  FIG. 13 is a front view illustrating a configuration example of the first stopper 120 that moves while being suspended from the upper rail 11.

  FIG. 14 is a side view of the first stopper 120 shown in FIG. 14A is a side view in which the illustration of the fixing portion 123 is omitted, and FIG. 14B is a side view in which the illustration of the shaft of the wheel 122 is omitted.

  As shown in FIGS. 13 and 14, the first stopper 120 includes an engaging portion 121 that engages with the upper rail 11 so as to be movable along the upper rail 11, and a longitudinal direction (X-axis direction) of the upper rail 11. And a fixing portion 123 that can fix the position of the first stopper 120 with respect to the upper rail 11 at at least two predetermined positions.

  Moreover, the cross section parallel to the YZ plane of the upper rail 11 in which the first stopper 120 is disposed is H-shaped as shown in FIG. Further, as shown in FIGS. 14A and 14B, the engaging portion 121 has four wheels 122 that rotate in contact with the inner surface parallel to the Y-axis direction of the upper rail 11.

  As a result, the first stopper 120 can move in the X-axis direction while being guided by the upper rail 11 even when the first stopper 120 is not supported by the frame 40 from below.

  The fixing portion 123 is, for example, a rod similar to the fixing portion 23 shown in FIGS. 5 and 6, and the fixing portion 123 penetrates the upper rail 11 in the lateral direction (Y-axis direction), thereby The position is fixed.

  Moreover, the fixing of the position of the first stopper 120 is released by extracting the fixing portion 123 from the hole of the upper rail 11.

  The fixing unit 123 is the same as the above-described fixing unit 23 in that various methods and structures can be adopted as the method and structure for fixing the position of the first stopper 120.

  By providing the first stopper 120 with the above-described configuration, for example, when changing the position of the first stopper 120, at least the work of removing the first stopper 120 from the upper rail 11 is unnecessary. That is, after releasing the position of the first stopper 120, for example, the operator does not need to take the first stopper 120 down to the floor, and the first stopper 120 is moved along the upper rail 11. What is necessary is just to move to a desired position.

  When the first stopper 120 is moved, for example, the operator may move the first stopper 120 by pushing the first stopper 120 with a stick from below. Further, the first stopper 120 may be self-propelled by disposing a power source such as a motor on the first stopper 120.

  The tracked vehicle system of the present invention has been described 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 have been made in the present embodiment, or forms constructed by combining a plurality of the above-described constituent elements are within the scope of the present invention. include.

  For example, the first stopper 20 may include at least one buffer portion 24. For example, the first stopper 20 may not include the right buffer portion 24 in FIG. 5 but may include only the left buffer portion 24. In this case, the first stopper 20 functions to restrict the movement of the stacker crane 50 in the right direction.

  In other words, in this case, for example, the first stopper 20 having only the right buffer part 24 in FIG. 5 without the left buffer part 24 is prepared as a stopper for restricting the movement of the stacker crane 60 in the left direction. Good.

  The same applies to the second stopper 30. That is, the second stopper 30 for the stacker crane 50 and the second stopper 30 for the stacker crane 60 may exist.

  In this way, by dividing the stopper disposed between the stacker crane 50 and the stacker crane 60 into the stacker crane 50 and the stacker crane 60, for example, both area-A and area-B are narrowed. Is also possible (see FIGS. 3 and 4).

  In the present embodiment, as shown in FIGS. 3 and 4, the first stopper 20 and the second stopper 30 are at two positions separated in the X-axis direction (first fixed position and second fixed position). It can be fixed. However, the fixed positions of the first stopper 20 and the second stopper 30 are not limited to the positions of these two positions.

  For example, the third fixed position may be set at a position close to the right end of the upper rail 11 in FIG. 4 in preparation for stopping the cargo transport operation by the stacker crane 60.

  In this case, after the stacker crane 60 is moved to the position farthest from the area-A (the right end in FIG. 4), the first stopper 20 and the second stopper 30 are moved to the third fixed position existing on the left side of the stacker crane 60. Fix it.

  As a result, the travel range of the stacker crane 50 extends beyond area-A and into area-B. As a result, the stacker crane 50 can safely carry out the luggage from at least a part of the rack 82 and the rack 83 in the area-B and can safely carry the luggage into the at least a part.

  The tracked vehicle system according to the present invention is a tracked vehicle system including two traveling vehicles that travel along the same end rail, and is capable of carrying a safe and efficient cargo transport operation by the two traveling vehicles. It is a tracked vehicle system that can be performed. Therefore, it is useful as a tracked vehicle system for transporting luggage in factories and distribution warehouses.

DESCRIPTION OF SYMBOLS 10 Tracked vehicle system 11 Upper rail 12 Lower rail 20, 120 First stopper 21, 31, 121 Engagement part 22, 33 Guide roller 23, 34, 123 Fixed part 24, 35 Buffer part 30 Second stopper 32, 122 Wheel 40 Frame 41 Ladder part 45 Operation part 46 Telescopic mechanism 47 Connecting member 50 Stacker crane 51 Lifting platform 52 Transfer device 58 Station 60 Stacker crane 70 Upper end stopper 71 Lower end stopper 72 Upper end stopper 73 Lower end stopper 80, 81, 82, 83 racks 90 luggage 100 automatic warehouse

Claims (3)

An upper rail that is an end rail, and a lower rail that is an end rail disposed below the upper rail;
Two traveling vehicles, each upper end being guided by the upper rail, and each lower end being guided by the lower rail;
A first stopper disposed at a position between the two traveling vehicles on the upper rail, and for restricting movement of at least one traveling vehicle of the two traveling vehicles;
The first stopper is
An engaging portion that engages with the upper rail so as to be movable along the upper rail;
Wherein spaced longitudinal direction of the upper rail, at least two positions predetermined to have a fixing portion capable of fixing the position relative to the upper rail of the first stopper,
further,
The lower rail is disposed at a position between the two traveling vehicles so as to be movable along the lower rail, and is configured to restrict movement of at least one carriage of the two traveling vehicles. Two stoppers,
A tracked vehicle system comprising: a connecting frame that moves the first stopper and the second stopper simultaneously by connecting the first stopper and the second stopper . The connecting frame, the disposed first stopper and between the second stopper, a rail traveling vehicle system according to claim 1, wherein the operator has a vertically movable ladder section. Further, the connected to the fixed part, a rail running in claim 1 or 2 comprising an operating unit having a mechanism capable from below of the first stopper of performing releasing of the fixing and the fixing of the first stopper Car system.

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