Transport system

Abstract

The conveying system includes: a conveying device for conveying articles; a cable part, one end of which is connected to the conveying device and the other end of which is fixed to the ground side and moves in accordance with the movement of the conveying device; and a loading part, which is provided to load the cable part. The loading part includes a base and a first vibration-damping member provided on the base and having a higher vibration-damping property than the base. The first vibration-damping member does not support the cable part on the first vibration-damping member.

Description

Technical Field

[0001] One aspect of the present invention relates to a transport system. Background Art

[0002] As a technology related to the conveying system, a surface mounting device described in Patent Document 1 is known. The surface mounting device described in Patent Document 1 includes a head unit (conveying device) and a cable veyor (registered trademark, cable unit) connected to the head unit. In the surface mounting device described in Patent Document 1, a vibration-proof material such as rubber is provided between the cable veyor and a guide member for guiding the cable veyor.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent No. 4986668 Summary of the invention

[0006] In the above technology, the vibration generated by the movement of the cable part is suppressed by the vibration-proof material. However, in the above technology, since the vibration-proof material is worn due to contact with the cable part, there is a problem that the vibration-proof material is easily deteriorated and the durability of the vibration suppression performance of the system is low.

[0007] Therefore, an object of one aspect of the present invention is to provide a transport system that can suppress vibrations generated in association with movement of a cable unit and improve the durability of vibration suppression performance.

[0008] A conveying system according to one aspect of the present invention comprises: a conveying device for conveying articles; a cable portion, one end of which is connected to the conveying device and the other end of which is fixed to the ground side and moves in accordance with the movement of the conveying device; and a loading portion, which is provided so as to be able to load the cable portion, the loading portion having a base and a first vibration-damping member provided on the base and having higher vibration-damping properties than the base, wherein the cable portion is not supported on the first vibration-damping member.

[0009] In this conveying system, the vibration generated by the movement of the cable unit can be suppressed by the first vibration-damping component. In addition, since the first vibration-damping component does not wear due to the contact between the first vibration-damping component and the cable unit, and the load of the cable unit does not act on the first vibration-damping component, the first vibration-damping component is not easily deteriorated. Therefore, the durability of the vibration suppression performance can be improved.

[0010] In the conveying system of one aspect of the present invention, a portion of the cable portion placed on the placement portion may be in contact with the placement portion, and the first vibration-damping member may be disposed at a position that does not overlap with a contact surface of the cable portion when viewed from above. In this case, a structure in which the first vibration-damping member does not support the cable portion can be specifically realized.

[0011] In the conveying system of one aspect of the present invention, the cable portion placed on the placement portion may be in contact with the placement portion at both sides in the width direction, and the first vibration-damping component may be disposed between the two sides of the cable portion when viewed from above. In this case, a structure can be specifically realized in which the first vibration-damping component does not overlap with the contact surface of the cable portion when viewed from above. In addition, the space between the two sides can be utilized, thereby saving space.

[0012] In a conveying system according to one aspect of the present invention, the cable section may include: at least one of a power cable and a signal cable connected to a conveying device; and a cable receiving section connected to the conveying device, receiving at least one of the power cable and the signal cable inside, and guiding at least one of the power cable and the signal cable so that the at least one of the power cable and the signal cable follows the movement of the conveying device. In this case, the cable section can be specifically configured. In addition, at least one of the power cable and the signal cable can follow the movement of the conveying device in a protected state.

[0013] In one aspect of the conveying system of the present invention, the conveying device may be configured to move in a first direction, and the base may include a limiting portion that limits the cable portion placed on the base from moving in a second direction intersecting the first direction. In this case, the limiting portion can prevent the cable portion from deviating in the second direction.

[0014] In the conveying system according to one aspect of the present invention, the placement unit may include a second vibration-damping member provided on a base and formed of a material different from that of the first vibration-damping member, and the cable unit may be supported on the second vibration-damping member, so that vibration generated by movement of the cable unit can be further suppressed.

[0015] In the conveying system according to one aspect of the present invention, the second vibration damping member may be provided at a position overlapping a contact surface of the cable portion and the mounting portion when viewed from above. In this case, a structure in which the second vibration damping member supports the cable portion can be specifically realized.

[0016] In the conveying system according to one aspect of the present invention, the placement unit may include a protection member provided on the second vibration-damping member and formed of a harder material than the second vibration-damping member. Thus, the second vibration-damping member can be protected.

[0017] In the conveying system according to one aspect of the present invention, the placement unit may include a smooth member provided on the protection member and formed of a material having a smaller friction coefficient than the protection member. This can prevent the protection member from being worn due to contact with the cable unit.

[0018] The transport system of one aspect of the present invention may also include: a storage device having a plurality of racks for storing articles; and a stand for supporting the storage device, the loading unit being mounted on the stand. In this case, vibrations generated by the movement of the cable unit are easily transmitted to the storage device and the articles via the stand. Since vibration suppression of the articles is important, the effect of suppressing vibrations generated by the movement of the cable unit is particularly effective.

[0019] Effects of the Invention

[0020] According to one aspect of the present invention, it is possible to provide a conveying system that can suppress vibrations generated in association with movement of a cable unit and improve the durability of vibration suppression performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view which shows the conveying system which concerns on embodiment.

[0022] Figure 2 It is a perspective view showing a stacker crane according to the embodiment.

[0023] Figure 3 It is a front view showing the outline of the cable part according to the embodiment.

[0024] Figure 4 It is a perspective view showing a cable portion, a fixed guide, and a guide roller according to the embodiment.

[0025] Figure 5 It is a side view showing the fixed guide and the guide roller according to the embodiment.

[0026] Figure 6 It is a side view showing the fixing guide according to the embodiment.

[0027] Figure 7 It is a perspective view showing a fixing guide according to the embodiment.

[0028] Figure 8 It is a side cross-sectional view showing a part of the fixing guide according to the embodiment in an enlarged manner.

[0029] Fig. 9 It is a perspective view showing a guide roller according to the embodiment.

[0030] Fig.10 It is along Fig. 9 Cross-sectional view of line XX.

[0031] Fig.11 It is a graph showing the noise test results of Examples and Comparative Examples. DETAILED DESCRIPTION

[0032] Hereinafter, the embodiments will be described in detail with reference to the drawings. In addition, the same reference numerals are attached to the same or corresponding elements, and repeated descriptions are omitted.

[0033] like Figure 1 As shown, a conveying system 1 of one embodiment includes a plurality of stockers 2. With respect to the stockers 2, a stacker crane 7 travels inside a stocker body 3 and conveys articles between a plurality of racks S provided inside the stocker body 3 and an access port (not shown). In the stocker 2, for example, articles conveyed by the stacker crane 7 are stored. Articles are, for example, containers such as FOUPs (Front-Opening Unified Pods) for accommodating wafers processed by semiconductor manufacturing equipment or liquid crystal manufacturing equipment, and reticle pods for accommodating reticles used in semiconductor manufacturing equipment or liquid crystal manufacturing equipment.

[0034] In the transport system 1, two (plural) storage devices 2A and 2B are arranged along the travel direction of the stacker crane 7. In the transport system 1, two stacker cranes 7 (7A and 7B) are respectively provided inside each storage device 2. The storage device 2 includes a storage device body 3, a rack 4, and stacker cranes 7A and 7B. The storage device 2 is supported by a rack 8 (see FIG. 1 ). Figure 5 ). In the following, for convenience, the traveling direction of the stacker crane 7 is described as the X direction (first direction), the vertical direction is described as the Z direction, and the horizontal direction orthogonal to the X direction and the Z direction is described as the Y direction (second direction).

[0035] The storage device body 3 is formed, for example, in a hollow rectangular parallelepiped shape. Inside the storage device body 3, a travel track 31 for the stacking crane 7 to travel is laid along the X direction, and an auxiliary track 32 is arranged in a manner opposite to the travel track 31 in the Z direction. The stacking crane 7 travels (moves) along the travel track 31 and the auxiliary track 32. The stacking crane 7 is a transporting device that transports articles between the storage rack S and the storage port and transfers articles relative to the storage rack S. The shelf part 4 is arranged along the X direction inside the storage device body 3. The shelf parts 4 are arranged in pairs in a manner opposite to each other with the travel track 31 between them. A plurality of storage racks S for storing articles are provided on the shelf part 4.

[0036] like Figure 2 and Figure 3As shown, the stacker crane 7 includes a traveling portion 71, a mast 72, a transfer portion 75, and an auxiliary traveling portion 90. The traveling portion 71 includes a traveling motor 78, a lifting motor 82, and a housing 85. The traveling portion 71 travels along the traveling track 31. The traveling portion 71 includes a driving wheel that rolls along the upper surface of the traveling track 31. The traveling motor 78 is a driving source for the traveling driving wheel 76. The lifting motor 82 is a driving source for the lifting platform 73. The housing 85 accommodates the traveling motor 78 and the lifting motor 82. In addition, Figure 2 , the state after the housing 85 is removed is shown. The pole 72 is erected on the upper part of the travel part 71 along the Z direction. The transfer part 75 transfers articles between it and the storage rack S, and transfers articles between it and the access port. The auxiliary travel part 90 travels along the auxiliary track 32. The auxiliary travel part 90 includes a pair of driving wheels that roll in a state of sandwiching the auxiliary track 32.

[0037] like Figure 3 and Figure 4 As shown, the transport system 1 includes a cable section 10. One end 10a of the cable section 10 is connected to the stacker crane 7, and the other end is fixed to the ground side, and moves in accordance with the movement of the stacker crane 7. The cable section 10 is in a long strip shape. The cable section 10 includes: an upper section 10x extending from the stacker crane 7 to one side in the X direction; a U-shaped section 10y extending from the upper section 10x in a manner of folding downward into a U shape; and a lower section 10z extending from the U-shaped section 10y to the other side in the X direction. When the stacker crane 7 moves to one side or the other side in the X direction, the cable section 10 moves in a manner that the one end 10a and the U-shaped section 10y perform a stroke movement (movement) to one side or the other side.

[0038] The cable unit 10 includes a power cable 11 and a cable drag chain 15. The power cable 11 is connected to the stacker crane 7 and is connected to a power supply unit (not shown) in the storage device 2. Thus, the stacker crane 7 is powered from the power supply unit via the power cable 11. The power cable 11 is not particularly limited, and cables of various shapes or specifications can be used.

[0039] The cable drag chain 15 accommodates the power cable 11 inside to protect the power cable 11. At the same time, the cable drag chain 15 guides the power cable 11 so that the power cable 11 follows the movement of the stacking crane 7. The cable drag chain 15 constitutes a cable storage part. The cable drag chain 15 has a movable end and a fixed end. The movable end of the cable drag chain 15 is connected to the traveling part 71 of the stacking crane 7. The fixed end of the cable drag chain 15 is installed on the platform 8 of the storage device 2 (refer to Figure 5 ) and fixed. The cable chain 15 is configured to be bent only in the direction around the axis along the Y direction. The cable chain 15 is not particularly limited, and components of various shapes or specifications can be used.

[0040] like Figure 4 and Figure 5 As shown, the conveying system 1 includes a cable guide 20 for guiding the cable section 10. The cable guide 20 includes a fixed guide 21 and a guide roller 41. The fixed guide 21 constitutes a loading portion that is provided in a manner capable of loading the cable section 10. The fixed guide 21 contacts (abuts) the cable drag chain 15 of the lower portion 10z in the cable section 10. The fixed guide 21 supports the lower portion 10z while guiding it so that the lower portion 10z does not deviate. The fixed guide 21 is provided to extend from a position close to the fixed end of the cable drag chain 15 to one side in the X direction. In addition, Figure 5 The cable portion 10 is omitted in the figure ( Figure 7 Same here).

[0041] The fixed guide 21 includes a base 22, a first vibration-damping member 24, a second vibration-damping member 25, a protective member 26, and a smoothing member 27. The base 22 is a plate-shaped member extending in the X direction with the Z direction as the thickness direction. The width of the base 22 in the Y direction corresponds to the width of the cable chain 15 in the Y direction. The base 22 is cantilevered on the beam member 8a of the platform 8 supporting the storage device 2 via the fixed guide mounting stay 28.

[0042] The beam member 8a is a member extending in the X direction below the storage device 2. The fixed guide mounting stay 28 is a member that is long in the Y direction and is in the shape of a curved plate. The fixed guide mounting stay 28 is placed on the base 22 and is fixed to the base 22 by a screw N1. The front end side of the fixed guide mounting stay 28 is formed in a shape bent upward at a right angle and is close to the outer surface of the limiting wall 23 described later. The base end side of the fixed guide mounting stay 28 is fixed to the upper surface of the beam member 8a by a screw N2. Thus, the fixed guide 21 is mounted on the stand 8. The base 22 includes a limiting wall (limiting portion) 23.

[0043] The limiting wall 23 is a plate-like member protruding upward from both ends of the base 22 in the Y direction. The limiting wall 23 is provided to be connected to both ends of the base 22 in the Y direction. In other words, the limiting wall 23 is provided to be bent upward at a right angle from both ends of the base 22 in the Y direction. The limiting wall 23 limits the movement of the cable drag chain 15 placed on the base 22 in the Y direction.

[0044] like Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the first vibration damping component 24 is a component provided on the base 22 and having a higher vibration damping property than the base 22. The first vibration damping component 24 is in the shape of a rectangular sheet having a predetermined thickness in the Z direction. The first vibration damping component 24 is fixed to the central part of the Y direction on the base 22 by bonding. The first vibration damping components 24 are arranged in parallel intermittently along the X direction. As the first vibration damping component 24, for example, materials that generally have a vibration damping effect, such as asphalt, butyl rubber, and lead, can be used. The material of the first vibration damping component 24 is not particularly limited, and various materials can be used for the first vibration damping component 24 as long as it can achieve its function. "Vibration damping" means reducing the amplitude of a vibrating object or attenuating the vibration. For example, the first vibration damping component 24 repeatedly extends as the fixed guide 21 vibrates, thereby converting the vibration energy into heat energy to attenuate the vibration.

[0045] The second vibration damping member 25 is a member provided on the base 22 and formed of a material different from that of the first vibration damping member 24. The second vibration damping member 25 is in the shape of a rectangular sheet thicker than the first vibration damping member 24. The second vibration damping member 25 is fixed to both end portions of the upper surface of the base 22 in the Y direction by bonding. The second vibration damping member 25 is continuously arranged along the X direction. As the second vibration damping member 25, for example, a resin material such as rubber and polyurethane can be used. The material of the second vibration damping member 25 is not particularly limited, and various materials can be used for the second vibration damping member 25 as long as it can achieve its function.

[0046] The protective member 26 is a member provided on the second vibration damping member 25 and formed of a material harder than the second vibration damping member 25. The protective member 26 is in the shape of a rectangular sheet thinner than the second vibration damping member 25. The protective member 26 is fixed to the upper surface of the second vibration damping member 25 by bonding in a manner of being laminated on the upper surface of the second vibration damping member 25. The protective member 26 is continuously arranged along the X direction. For example, hard rubber and nylon can be used as the protective member 26. The material of the protective member 26 is not particularly limited, and various materials can be used for the protective member 26 as long as it can achieve its function.

[0047] The smoothing member 27 is a member provided on the protective member 26 and formed of a material having a smaller friction coefficient than the protective member 26. The smoothing member 27 is in the shape of a rectangular sheet thinner than the protective member 26. The smoothing member 27 is fixed to the upper surface of the protective member 26 by bonding in a manner of being laminated on the upper surface of the protective member 26. The smoothing member 27 is continuously arranged along the X direction. As the smoothing member 27, for example, New Light (registered trademark), polyethylene, fluorine, Teflon (registered trademark) and polyvinyl chloride can be used. The material of the smoothing member 27 is not particularly limited, and various materials can be used for the smoothing member 27 as long as they are materials that can achieve their functions.

[0048] In this embodiment, when the cable unit 10 is placed on the fixed guide 21, a part of the cable unit 10 contacts the fixed guide 21. Specifically, both sides of the lower surface of the cable chain 15 in the Y direction (width direction) contact the upper surface of the smooth member 27. Both sides of the cable chain 15 constitute the contact surface R that contacts the fixed guide 21.

[0049] The first vibration damping member 24 does not support the cable portion 10. That is, when viewed from above, the first vibration damping member 24 is provided at a position that does not overlap with both sides of the cable drag chain 15. When viewed from above, the first vibration damping member 24 is disposed between both sides of the cable drag chain 15. The upper surface of the first vibration damping member 24 is not located above the upper surface of the smooth member 27, and a gap is formed between the first vibration damping member 24 and the cable drag chain 15.

[0050] The second vibration damping member 25 supports the cable portion 10. The protective member 26 supports the cable portion 10. The smooth member 27 supports the cable portion 10. The second vibration damping member 25, the protective member 26, and the smooth member 27 are provided at positions overlapping both side portions of the cable drag chain 15 when viewed from above.

[0051] like Figure 4 , Figure 5 , Fig. 9 and Fig.10 As shown, the guide roller 41 contacts the cable drag chain 15 of the upper portion 10x in the cable portion 10. The guide roller 41 supports the upper portion 10x in a manner that allows sliding in the X direction, and guides the movement of the upper portion 10x in the X direction. The guide roller 41 is arranged at a predetermined interval along the X direction at a position on the other side of the fixed guide 21 in the X direction.

[0052] The guide roller 41 includes a roller 42, a roller mounting stay 43, a stand mounting stay 44, and a grommet 45. The roller 42 is rotatably provided around a rotation shaft 42a extending in the Y direction. The roller mounting stay 43 is a plate-shaped member with the Y direction as the thickness direction. The base end side of the rotation shaft 42a of the roller 42 is fixed to the upper part of the roller mounting stay 43 by screws or the like.

[0053] The stand mounting stay 44 is a plate-shaped member with the Y direction as the thickness direction. A notch 44 is formed in the upper part of the stand mounting stay 44, which is U-shaped when viewed from the Y direction. The roller 42 is inserted into the notch 44. On the rear side of the area from the upper part to the central part of the stand mounting stay 44, a roller mounting stay 43 is overlapped with a predetermined gap. In this state, the roller mounting stay 43 is fixed to the stand mounting stay 44 by inserting screws N3 into its four corners. The lower part of the stand mounting stay 44 is fixed to the front surface of the beam member 8a by screws N4. Thus, the guide roller 41 is mounted on the stand 8.

[0054] The grommet 45 is a cylindrical member disposed around the shaft of the screw N3 via the collar 45a and having the Y direction as the axial direction. The grommet 45 is formed of rubber. The grommet 45 has a structure in which the front end portion 45f and the rear end portion 45r thereof are enlarged in diameter in the axial direction. The front end portion 45f is arranged so as to be sandwiched between the roller mounting stay 43 and the stand mounting stay 44. The rear end portion 45r is arranged so as to abut against the rear surface of the roller mounting stay 43. With the grommet 45 interposed therebetween, the roller mounting stay 43 and the stand mounting stay 44 are separated, and the transmission of vibrations from the guide roller 41 to the stand 8 can be suppressed. The collar 45a is a cylindrical member disposed between the grommet 45 and the screw N3. The collar 45a prevents the grommet 45 from being excessively crushed in the Y direction due to the tightening of the screw N3. A washer W is provided between the head of the screw N3 in the Y direction and the rear end portion 45r of the grommet 45.

[0055] In the guide roller 41, the lower surface of the cable chain 15 of the upper layer 10x in the cable section 10 contacts the roller 42. When the cable chain 15 moves in the X direction as the stacker crane 7 moves in the X direction, the roller 42 rotates to guide the movement of the cable chain 15 in the X direction.

[0056] In the transport system 1 configured as described above, when the stacker crane 7 moves to one side in the X direction, the cable section 10 moves in a manner that the U-shaped section 10y moves to one side in the X direction and the lower section 10z increases. At this time, the cable drag chain 15 contacts the fixed guide 21 in a collision manner corresponding to the increase in the lower section 10z, which may cause vibration. In this regard, in the transport system 1, the vibration generated by the movement of the cable section 10 can be suppressed by the first vibration-damping component 24. In addition, since the first vibration-damping component 24 does not wear due to the contact with the cable section 10 and the load of the cable section 10 does not act on the first vibration-damping component 24, the first vibration-damping component 24 is not easy to deteriorate. Therefore, the durability of the vibration suppression performance of the transport system 1 can be improved.

[0057] In the conveying system 1, with respect to the cable unit 10 placed on the fixed guide 21, a portion of the cable chain 15 contacts the fixed guide 21, and when viewed from above, the first vibration-damping member 24 is provided at a position that does not overlap with the contact surface R of the cable unit 10. In this case, a structure in which the first vibration-damping member 24 does not support the cable unit 10 can be specifically realized.

[0058] In the conveying system 1, the cable unit 10 placed on the fixed guide 21 contacts the fixed guide 21 with both side portions of the cable chain 15, and when viewed from above, the first vibration-damping member 24 is disposed between the two side portions of the cable unit 10. In this case, a structure can be specifically realized in which the first vibration-damping member 24 does not overlap with the contact surface R of the cable unit 10 when viewed from above. In addition, the space between the two side portions can be utilized, thereby saving space.

[0059] In the transport system 1, the cable unit 10 includes a power cable 11 connected to the stacker crane 7 and a cable drag chain 15. The cable drag chain 15 accommodates the power cable 11 inside and guides the power cable 11 so that the power cable 11 follows the movement of the stacker crane 7. In this case, the cable unit 10 can be specifically configured. In addition, the power cable 11 can follow the movement of the stacker crane 7 while being protected.

[0060] In the transport system 1 , the stacker crane 7 is configured to move in the X direction. The base 22 has a restriction wall 23 for restricting the cable unit 10 placed thereon from moving in the Y direction. In this case, the restriction wall 23 can suppress the cable unit 10 from deviating in the Y direction.

[0061] In the conveying system 1, the fixed guide 21 has the second vibration damping member 25 provided on the base 22 and formed of a material different from that of the first vibration damping member 24. The second vibration damping member 25 supports the cable unit 10 on the second vibration damping member 25. Thus, the vibration generated by the movement of the cable unit 10 can be further suppressed.

[0062] In the conveying system 1, when viewed from above, the second vibration damping member 25 is provided at a position overlapping with the contact surface R of the cable portion 10 and the fixed guide 21. In this case, a structure in which the second vibration damping member 25 supports the cable portion 10 can be specifically realized.

[0063] In the conveying system 1, the fixed guide 21 has the protection member 26 which is provided on the second vibration-damping member 25 and is formed of a harder material than the second vibration-damping member 25. Thus, the second vibration-damping member 25 can be protected.

[0064] In the conveying system 1, the fixed guide 21 has the smooth member 27 provided on the protective member 26 and formed of a material having a smaller friction coefficient than the protective member 26. Thus, the protective member 26 can be prevented from being worn due to contact with the cable unit 10.

[0065] The transport system 1 includes: a storage device 2 having a plurality of racks S for storing articles; and a stand 8 for supporting the storage device. The fixed guide 21 is mounted on the stand 8. In this case, the vibration generated by the movement of the cable unit 10 is easily transmitted to the storage device 2 and the articles via the stand 8. Since the vibration suppression of the articles is important, the effect of suppressing the vibration generated by the movement of the cable unit 10 is particularly effective.

[0066] Fig.11 It is a diagram showing the noise test results of the embodiment and the comparative example. The embodiment corresponds to the above-mentioned conveying system 1. In the embodiment, asphalt is used as the material of the first vibration damping component 24, styrene-based thermoplastic elastomer (TPS) is used as the material of the second vibration damping component 25, acrylic rubber (ACM) is used as the material of the protective component 26, and New light is used as the material of the smoothing component 27. In the comparative example, the first vibration damping component 24, the protective component 26 and the smoothing component 27 are not provided, and polyurethane is used as the second vibration damping component 25, and other than this, it is the same as the embodiment. The noise value is a relative value with the noise value (db) of the comparative example as the benchmark. From the noise test results, it can be confirmed that the noise value can be reduced by about 7% in the embodiment relative to the comparative example.

[0067] As mentioned above, although embodiment was described, one aspect of the present invention is not limited to the above-mentioned embodiment.

[0068] In the above embodiment, the position of the first vibration damping member 24 is not particularly limited, as long as it is a position that does not support the cable unit 10. For example, the first vibration damping member 24 may be provided on the lower surface of the base 22, or may be provided on the limiting wall 23 of the base 22. In the above embodiment, the number of the first vibration damping members 24 is not particularly limited, and may be one or more. In the above embodiment, the first vibration damping members 24 may be arranged continuously along the X direction. The above embodiment may also include a signal cable connected to the stacker crane 7 instead of the power cable 11 or in addition thereto. In this case, the cable drag chain 15 accommodates the signal cable inside and guides the signal cable so that the signal cable follows the movement of the stacker crane 7.

[0069] Each structure in the above-mentioned embodiment and modification examples is not limited to the above-mentioned materials and shapes, and various materials and shapes can be applied. Each structure in the above-mentioned embodiment or modification examples can be arbitrarily applied to each structure in other embodiments or modification examples. A part of each structure in the above-mentioned embodiment or modification examples can be appropriately omitted within the scope of the gist of one form of the present invention.

[0070] Description of Reference Numerals

[0071] 1: transport system, 2: storage device, 7, 7A, 7B: stacker crane (transport device), 8: platform, 10: cable part, 11: power cable, 15: cable drag chain (cable storage part), 21: fixed guide (loading part), 22: base, 23: limiting wall (limiting part), 24: first vibration damping component, 25: second vibration damping component, 26: protection component, 27: smooth component, R: contact surface, S: storage rack.

Claims

1. A conveying system, characterized in that: have: Conveying devices for moving items; a cable portion, one end of which is connected to the conveying device, the other end of which is fixed to the ground side and moves in accordance with the movement of the conveying device; and a mounting portion configured to be able to mount the cable portion, The mounting portion includes a base and a first vibration-damping member provided on the base and having a higher vibration-damping property than the base. The first vibration damping member does not support the cable portion. The cable portion placed on the placement portion is in contact with the placement portion at both sides in the width direction thereof. The first vibration damping member is disposed between the two side portions of the cable portion when viewed from above.

2. The conveying system according to claim 1, characterized in that: The cable portion placed on the placement portion has a portion in contact with the placement portion. The first vibration damping member is provided at a position not overlapping with a related contact surface of the cable portion when viewed from above.

3. The conveying system according to claim 1 or 2, characterized in that: The cable portion has: At least one of a power cable and a signal cable connected to the conveying device; and A cable housing portion is connected to the conveying device, houses at least one of the power cable and the signal cable therein, and guides at least one of the power cable and the signal cable so that the at least one of the power cable and the signal cable follows the movement of the conveying device.

4. The conveying system according to claim 2, characterized in that: The conveying device is configured to move along a first direction. The base includes a restriction portion that restricts movement of the cable portion placed on the base in a second direction intersecting the first direction.

5. The conveying system according to claim 1 or 2, characterized in that: The mounting portion includes a second vibration-damping member provided on the base and formed of a material different from that of the first vibration-damping member. The second vibration damping member supports the cable portion.

6. The conveying system according to claim 5, characterized in that: The second vibration damping member is provided at a position overlapping a contact surface of the cable portion and the mounting portion when viewed from above.

7. The conveying system according to claim 5, characterized in that: The placement portion includes a protection member that is provided on the second vibration-damping member and is formed of a material that is harder than the second vibration-damping member.

8. The conveying system according to claim 6, characterized in that: The placement portion includes a protection member that is provided on the second vibration-damping member and is formed of a material that is harder than the second vibration-damping member.

9. The conveying system according to claim 7, characterized in that: The placement portion includes a smooth member that is provided on the protection member and is formed of a material having a smaller friction coefficient than that of the protection member.

10. The conveying system according to claim 8, characterized in that: The placement portion includes a smooth member that is provided on the protection member and is formed of a material having a smaller friction coefficient than that of the protection member.

11. The conveying system according to claim 1 or 2, characterized in that: have: A storage device having a plurality of racks for accommodating the items; and a frame supporting the storage device, The mounting portion is mounted on the stand.

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