JP2019177981A - Conveyance system - Google Patents

Abstract

To provide a destination designated returnable case (tray) conveyance system capable of improving reliability of luggage conveyance, and improving conveyance speed (high-speed conveyance), the conveyance system having a substantially curve-shaped conveyance path in which a tray is hardly jammed and conveyance is performed smoothly.SOLUTION: A destination designated returnable case (tray) conveyance system according to the present invention is a tray conveyance device in which drive rollers that are driven by a drive motor are arranged in both outer circumferential side and inner circumferential side in a substantially curve-shaped conveyance path in the conveyance system.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a transport system for transporting a baggage of a boarding customer on a transport pass box (hereinafter referred to as “tray”) at an airport or the like.

  In general, baggage of boarding customers is consigned from the customer before boarding at the airport, etc., then given a baggage identifier ID, and is automatically transported to the designated aircraft on the conveyor belt according to the departure time. . Thereafter, the baggage that is airlifted to the destination by the aircraft is automatically transported to the customer at the place where the baggage is received at a specified time.

  All these baggage are sorted and transported by the transport system according to the flight number, destination, etc. Baggage is read by the baggage identifier ID reader in the transport mechanism and automatically transported to the boarding machine within the specified time. After the aircraft is transported, it is transported by a conveyor belt to reach the specified location at the arrival airport. Each route is branched and conveyed.

  In such a baggage transfer system for passengers, one using a wide conveyor belt has been used in the past, but in a transfer system using a wide and long belt made of rubber or the like, electric power from a driving motor or the like is large. Not only was maintenance (inspection / repair) difficult.

  In recent years, when carrying baggage at airports, conveyor belts and rollers driven by motors that can carry baggage to be carried on trays and can transport baggage placed on trays on both sides of the conveyance path are relatively narrow and non-driven rollers For example, a baggage transport system is used in which a baggage is moved using a transport path composed of a car or a self-propelled trolley is moved along the transport path surface.

  In the baggage transport system for boarding customers, important customer baggage must not be damaged by accidents during transport. In addition to damage to the baggage outer shape, the baggage in the baggage must not be damaged by vibration or shock during transfer. It is a typical problem.

  In the baggage transport system using the tray as described above, the conveyor belt cannot be used in the curved path portion where the direction of the transport path is substantially curved. Therefore, the tray is moved by a roller driven by a motor. It is common to drive only the rollers on the outer peripheral side where the distance becomes longer.

  The reason for this is that when the drive roller is connected with a drive belt for energy saving and driven with a small number of drive motors, it is energy saving to drive only the outer peripheral side and not drive the inner peripheral side. The main reason was that it was easy to maintain. However, the tray conveyance on the curved road is unexpectedly delicate. When only the outer peripheral side of the curved road is driven, the tray conveyance is not performed smoothly, and sometimes the tray is clogged.

  In addition to the above-described problems, the tray movement at the curved portion is intermittent roller conveyance compared with the flat belt conveyance at the straight portion, and thus vibration and impact may increase.

  The present invention has been devised in order to solve such a problem, and comprises a curved path portion of a conveyance path with several (specifically, about 1 to 3) conveyance devices having a substantially curved shape, With this substantially curvilinear conveying device, not only the outer peripheral portion but also the roller installed on the inner peripheral side is driven. With such a configuration, the force that moves to both sides of the traveling direction works on the bottom surface of the tray, so the tray moves more smoothly than the case where the force that moves to one side works, and vibrations and shocks in the transport path are reduced. Can be reduced. Furthermore, by changing the taper shape of the roller for driving the tray and bringing it into close contact with the bottom surface of the tray, vibration and impact during tray conveyance can be further reduced.

  In the system for transporting articles using a tray in this way, in order to investigate prior art regarding the transport method in the curved transport path, the keyword “transport, curve, tray”, “curve transport path”, etc. The proposal by prior art literature like this was seen.

JP 2004-168512 A JP-A-6-107312

  Patent Document 1 shows a diagram of a conveyance path composed of a straight conveyance path and a curved conveyance path, but is a patent related to a technique using a linear motor at a low temperature, and is related to a problem of a general conveyance path. The problem of the present application cannot be solved.

  Patent Document 2 is a proposal related to a proposal for reducing the radius of curvature in a curved conveyor and making it compact, and is not related to solving the problem in tray conveyance, and still cannot solve the problem of the present application.

  As described above, regarding the problems related to the curved conveyance path portion in the conveyance path using the tray, there is not so much relevance in the range in which the prior art is investigated. As described above, the present invention solves the problems of tray clogging and energy saving in the curved conveyance path portion.

Embodiment of the Invention

  In order to solve these problems, as a first aspect of the present invention, in the transport device that constitutes the substantially curved portion of the transport path, it is disposed not only on the outer peripheral side of the transport path but also on the inner peripheral side. The roller is driven by a motor and a driving belt. However, when driving the outer and inner rollers with the same rotation axis at the same time, the rotation axis (shaft) part is stressed in the rotation direction due to the difference in drive rotation speed, so the rotation axis is one or both rollers. It should be possible to rotate freely while avoiding a firm connection.

  By arranging the driving roller in the substantially curved portion of the conveyance path by arranging the driving roller not only on the outer peripheral side but also on the inner peripheral side, the bottom surface of the tray on the conveyance path receives the driving force. Tray clogging is reduced and smooth tray conveyance is realized.

  As a second aspect of the present invention, in the conveying device that constitutes the substantially curved portion of the conveying path, the driving roller is arranged by the motor and the driving belt on the inner peripheral side as well as the curved portion outer peripheral side of the conveying path. When the outer peripheral side roller is a driving roller, the inner peripheral side roller connected by the shaft is a non-driving roller. Accordingly, driving and non-driving of the outer peripheral side roller are alternately arranged, and when the outer peripheral side roller is not driven, the inner peripheral side roller is used as the driving roller. In other words, the outer peripheral side is a driving roller and the inner peripheral side is a non-driven roller, and the inner peripheral side is a driving roller and the outer peripheral side is a non-driven roller are alternately arranged on a substantially curved conveyance path.

  With such an arrangement of the driving rollers, at least one of the driving rollers is always in contact with the bottom surface of the tray on the outer peripheral side and the inner peripheral side to give a driving force to the tray bottom surface. Energy saving is realized. Needless to say, in order to realize the second aspect, it is necessary to optimally design the size of the bottom surface of the tray to be conveyed and the distance between the rollers.

  In the first aspect and the second aspect 2, one drive motor is installed on each of the outer peripheral side and the inner peripheral side, and the drive rollers are linked by a drive belt, or the outer peripheral side and the inner peripheral side are driven. The roller may be driven in conjunction with one drive motor, which is preferable in terms of power saving. In the case where the drive roller on the outer peripheral side and the inner peripheral side are driven in conjunction with one drive motor, when the drive motor stops due to a failure or the like, the risk is that the substantially curved transport path stops and the entire transport path stops. Should be taken into account.

  As a third aspect of the present invention, by changing the taper of the driving rollers on the outer peripheral side and the inner peripheral side and bringing them into close contact with the bottom surface of the tray, vibrations and impacts during tray transport are further reduced and soft touch transport is achieved. be able to.

It is the conceptual diagram which looked at the conveying apparatus which has arrange | positioned the driving roller to both the outer peripheral part and the inner peripheral part from the upper surface by the substantially curvilinear conveying apparatus which concerns on one Embodiment of this invention. It is the conceptual diagram which looked at the conveying apparatus of the substantially curvilinear conveying apparatus which concerns on another embodiment of this invention from the upper surface, and the driving device of the outer peripheral part and the inner peripheral part is every other, and is arrange | positioned alternately. It is a figure which shows the example at the time of the drive belt interlock | cooperated with the drive roller arrange | positioned with the substantially curvilinear conveyance apparatus which concerns on one Embodiment of this invention. It is a connection example of the drive roller in the roller for conveyance paths, and a sub roller. It is an example of the bank (inclination by a roller diameter) by an inner peripheral side and an outer peripheral side roller. It is an example of the bank (inclination by a rotating shaft and a roller diameter) by an inner peripheral side and an outer peripheral side roller. It is a side surface enlarged view using the trapezoid cylindrical roller of the substantially curvilinear conveyance device concerning one embodiment of the present invention. It is an enlarged view of the shape of the trapezoid cylindrical roller of the substantially curvilinear conveying apparatus which concerns on one Embodiment of this invention.

  A substantially curvilinear conveying apparatus according to an embodiment of the present invention will be described below with reference to the drawings. Since the configuration, shape, and the like shown in the drawings are examples of embodiments of the present invention, the present invention is not limited to those shown in the drawings.

  FIG. 1 is a top view of the first embodiment of the present invention, and is a diagram showing the arrangement of rollers in the transport apparatus 100 when it constitutes a substantially curved portion of the transport path and the transport direction is bent by approximately 90 degrees. The outer peripheral side drive roller 10 and the inner peripheral side drive roller 20 are connected by a rotary shaft 30, and are in contact with the bottom surface of the tray 40 moving on the conveyance path, respectively, and apply a rotational driving force to the tray and the tray. Transport the cargo loaded on. Since the transfer direction may be from the upper left to the lower right in FIG. 1 or vice versa, it is not shown.

  Since the outer peripheral side of the driving roller 10 on the outer peripheral side and the driving roller 20 on the inner peripheral side are longer on the outer peripheral side due to the difference in the rotation radius of the transport path, the rotational speed of the driving roller is the radius of the driving roller. However, if the radius of the driving roller is the same, the rotational speed of the driving roller on the outer peripheral side is optimized (set somewhat faster) in proportion to the moving distance. When both the inner peripheral side and the outer peripheral side are drive rollers and the rotational speeds are different, at least one of the rollers is allowed to freely rotate from the rotary shaft 30. To make the rotation speed the same when both the inner and outer rollers are drive rollers, optimize the radius of the outer drive roller in proportion to the travel distance (design a little larger). That's fine.

  The roller spacing in FIG. 1 depends on the rotation radius of the transport path, the size of the bottom surface of the tray 40 to be transported, etc., but there is always one drive roller on the bottom surface of the tray on the outer peripheral side and one point on the inner peripheral side. It is preferable to design so that they come into contact with each other for smooth tray conveyance.

  The drive rollers may be driven by driving individual drive rollers with a dedicated drive motor and drive belt. However, when the power consumption of the drive motor is large, the outer peripheral rollers are driven rollers 10 as shown in FIG. Energy saving can be realized by interlocking with the driving wheel 12 and the driving belt 13 which are integrated with each other and driving with one driving motor 15. Similarly, the inner peripheral rollers can be linked together and driven by a single drive motor, leading to energy saving. Further, when the belt is wound around the pulley as shown in FIG. 3, the belt can be shortened by arranging the belt in a staggered manner, and the belt can be exchanged very easily. Conventionally, a hexagonal belt is used as a drive belt for a curved conveyance path, but there is a drawback that the life is shortened by bending. In the present invention, since a round belt is used and the staggered arrangement is adopted, the belt life can be extended with less stress due to bending.

  FIG. 2 is a top view of the second embodiment of the present invention, and is a diagram showing the arrangement of drive rollers in the transport apparatus 101 when the transport direction is bent by approximately 90 degrees, constituting a substantially curved portion of the transport path. is there.

  In the second embodiment, the driving rollers on the outer peripheral side and the inner peripheral side are arranged alternately with respect to the traveling direction of the tray 40, and when the outer peripheral side is the driving roller 10, the inner peripheral side is the non-driving roller 21. Are connected by the rotary shaft 30. Conversely, when the inner peripheral side is the driving roller 20, the outer peripheral side is connected to the non-driving roller 11 by the rotary shaft.

  By reducing the number of drive rollers in contact with the bottom of the tray in this way, when driving each drive roller with a dedicated drive motor and drive belt, the number of drive motors can be reduced and energy saving can be realized. In addition, since it is possible to suppress an excessive driving force from being applied to the bottom surface of the tray, smoother tray conveyance is realized.

  In the case where every other driving roller is arranged on the outer peripheral side or the inner peripheral side as in the second embodiment (the driving roller and the non-driving roller are alternately arranged), for example, the outer driving roller is driven by one. FIG. 4 shows an example of a method of driving by interlocking with a motor. When the tray 40 conveys the conveyance path 50 on the outer circumferential side, the rotational driving force of the motor unit driving wheel 16 is transmitted to the outer circumferential driving roller 10 by the driving belt 13, and the non-driving sub below the non-driving roller 11. The next drive roller is driven via the wheel 14. If the non-drive subwheel on the outer peripheral side drives the inner non-drive subwheel (not shown) by the connecting shaft portion and this driving force drives the inner drive roller by the drive belt, The inner peripheral side and the outer peripheral side can be driven by the drive motor. The inner peripheral rotation speed may be optimized by adjusting the diameter of the drive wheel integrated with the sub wheel and the inner peripheral drive roller.

  In order to control the rotation speed of the drive roller more finely, for example, when each drive roller is driven by a dedicated drive motor, measure the rotation speed of each drive roller with a measurement sensor (not shown) installed nearby. The drive motors may be always feedback-controlled by a control unit (not shown) so as to optimize (or make identical) the rotation speeds of the collected drive rollers. When each drive roller is linked, the drive roller is rotated so that smooth drive can be realized by feedback control of the drive motor based on the obtained rotation speed data and fine adjustment of the drive wheel diameter. It is desirable to optimize the number.

  FIG. 5 is a plan view of the third embodiment of the present invention, in which the outer peripheral drive roller 10 and the inner peripheral drive roller 20 are connected by a rotary shaft 30, as described in paragraph 0020. Since the movement distance between the inner circumference and the outer circumference becomes longer on the outer circumference side due to the difference in the rotation radius of the conveyance path, the radius of the driving roller on the outer circumference side is designed to be slightly larger in proportion to the movement distance. As described above, the diameter of the driving roller (or non-driving roller) on the outer peripheral side is larger than the roller diameter on the inner peripheral side regardless of driving or non-driving, and therefore the tray 40 conveyed on the horizontal roller 60 is Slightly inclined. By this inclination (bank), the centrifugal force acting on the tray and the load loaded on the tray when the tray is transported on the substantially curved path is reduced by the inward component force of gravity acting on the tray and the load due to the inclination. Smooth conveyance is realized.

  FIG. 6 is a plan view of the fourth embodiment of the present invention, in which the outer peripheral side driving roller 10 and the inner peripheral side driving roller 20 are connected by the rotary shaft 30, as described in the previous paragraph. It is the figure which inclined the rotating shaft 30 intentionally with respect to the horizontal surface 60 in order to reduce the centrifugal force which acts at the time of conveyance better. This inclination angle is preferably set to an optimum angle depending on the tray to be transported and the transport speed of the load, but not only when the transport is performed at a constant speed but also when the transport is stopped due to an abnormality or the like. Needless to say, it is necessary to determine that the roller does not fall down due to the inclination.

  As described above, in the substantially curvilinear conveying device, the centrifugal force acts on the tray and the baggage during conveyance at a constant speed, and the outer side surface and the inner circumferential side surface prevent the baggage from falling due to the inclination when the conveyance is stopped. It is desirable to arrange a tray guide (not shown) having a necessary and sufficient height from the conveyance path surface 50 in the section.

  Following the technical idea of this substantially curvilinear transport device, the transport device has a substantially semicircular shape in which the transport direction bends approximately 180 degrees, or the substantially curvilinear transport device in which the transport direction bends approximately 60 degrees. Or they may be connected as appropriate.

  FIG. 7A is an enlarged surface view of the fourth embodiment of the present invention, and FIG. 7B is an enlarged schematic view of a roller 70 instead of the roller 10 or the roller 20. The roller 10 or 20 has a trapezoidal cylindrical shape, and is a cylindrical roller 70 in which the inner diameter 71 and the outer diameter 72 of the roller are determined according to the curvature of the substantially curved conveyance path so that the side surface 73 of the roller and the bottom surface of the tray 40 are in close contact with each other. is there. Since the roller side and the bottom of the tray are in close contact, and power can be transmitted without causing slippage, both vibration and impact are reduced, and both the eco-transport and the soft transport have less power transmission loss for transport. Can be solved.

  As described above, since the drive rollers are arranged not only on the outer peripheral side but also on the inner peripheral side in the substantially curvilinear transport path so as to transport the cargo transport tray, the transport device in which tray clogging hardly occurs. It becomes possible to provide. With such a configuration, it is possible to obtain an advantage that conveyance can be continued even if one of the drive motors fails.

  Tray identification information is attached to each tray, and the tray identification information and the package identification information are linked on a one-to-one basis so that the entire transport system recognizes the entire package information, or the entire package information is the entire information system in the airport. It may be linked to.

  The present invention is not limited to the above-described embodiments, and can be implemented in various modifications without departing from the spirit of the present invention. All of these are within the scope of this technical idea.

  As described above, according to the invention according to the present application, it is possible to form a conveyance path that can safely and accurately deliver an article, which is a baggage of a customer, to an air mail designated by the customer or an arrival place thereof. It is possible to realize a tray transport system that forms a curved path portion and enables smooth tray transport.

  Furthermore, according to the invention according to the present application, it is not limited to baggage goods at an airport, and a tray transportation system that can smoothly transport a tray by forming a substantially curved path portion even in a tray transportation system for various goods can be provided.

  Therefore, the invention of the present application can bring great benefits to goods transportation systems in all industries including airport logistics systems, goods transportation systems such as warehouses, manufacturing industries, construction industries, etc. It can be said that there is sex.

  In addition, with the soft touch conveyance that is the feature of the present invention, it is possible to automatically convey an article that has been difficult to be automatically conveyed due to damage during conveyance until now by soft touch conveyance. Can be expected.

DESCRIPTION OF SYMBOLS 10 Outer peripheral side drive roller 11 Outer peripheral side non-drive roller 12 Drive wheel 13 Drive belt 14 Non-drive subwheel 15 Drive motor 16 Motor part drive wheel 20 Inner peripheral side drive roller 21 Inner peripheral side non-drive roller 30 Rotating shaft 40 Tray 50 Conveying road surface 60 Horizontal surface 70 Tray 100 Curved path conveying device 101 Curved path conveying device (Drive roller half type)

Claims (11)

A returnable box to place items,
A conveyance road surface formed in a substantially curved shape;
A first drive roller disposed on the outer peripheral side of the substantially curvilinear conveying path;
A second drive roller disposed on the inner peripheral side of the substantially curved conveyance path;
A drive motor for driving the first and second drive rollers;
A control unit for controlling the drive motor;
A tray conveying device comprising: the return box to be conveyed and / or a tray guide for guiding the article. The tray conveyance device according to claim 1, wherein at least one non-driving roller is disposed between the first driving roller and the second driving roller. The inner peripheral side roller to which the first driving roller is coupled by a rotary shaft is a first non-driving roller,
The outer peripheral roller to which the second driving roller adjacent to the second driving roller is coupled by a rotary shaft is a second non-driving roller,
The tray conveying apparatus according to claim 2, wherein the first and second non-driving rollers are alternately arranged. The first driving roller is driven by one driving motor in conjunction with a driving belt;
4. The tray transport device according to claim 1, wherein the second drive roller is driven by a drive motor that is linked with a drive belt and is separate from the outer peripheral side. The inner peripheral side roller to which the first driving roller is coupled by a rotary shaft is a first non-driving roller,
The outer peripheral roller to which the second driving roller adjacent to the second driving roller is coupled by a rotary shaft is a second non-driving roller,
The first and second non-driving rollers are alternately arranged, and the first and second driving rollers are interlocked by a non-driving sub-wheel disposed under the first and second non-driving rollers. 5. The tray transport device according to claim 2, wherein the tray transport device is driven by a single drive motor. The inner peripheral side roller to which the first driving roller is coupled by a rotary shaft is a first non-driving roller,
The outer peripheral roller to which the second driving roller adjacent to the second driving roller is coupled by a rotary shaft is a second non-driving roller,
The first and second non-driving rollers are alternately arranged, and the first and second driving rollers are interlocked by a non-driving sub-wheel disposed under the first and second non-driving rollers. Driven by one drive motor,
6. The tray conveying apparatus according to claim 5, wherein the second driving roller is driven by a driving force of an outer peripheral side driving motor through a non-driving sub wheel disposed on the outer peripheral side.   The diameters of the first driving roller and the non-driving roller are larger than the diameters of the second driving roller and the first non-driving roller coupled by a rotation shaft, and the tray conveyance path surface has a diameter of the rollers. The tray conveyance device according to any one of claims 1 to 6, wherein the tray conveyance device is inclined inwardly due to a difference.   The diameters of the first driving roller and the second non-driving roller are larger than the diameters of the second driving roller and the second non-driving roller coupled by a rotating shaft, and the rotating shaft is The tray conveyance device according to claim 1, wherein the tray conveyance device is inclined toward an inner peripheral side.   The diameters of the first driving roller and the second non-driving roller are larger than the diameters of the second driving roller and the second non-driving roller coupled by a rotating shaft, and the rotating shaft is 9. The tray conveying device according to claim 8, wherein the tray conveying device is inclined toward the inner peripheral side, and an inclination angle of the rotary shaft with respect to a horizontal plane is in a range of approximately 1 degree to approximately 15 degrees.   The first and / or second driving roller and the first and / or second non-driving roller have a trapezoidal cross section, and the upper base radius and the lower side of the trapezoidal cross section to match the curvature of the substantially curvilinear conveying path. The tray conveying apparatus according to claim 1, wherein a bottom radius is determined.   11. The tray transport device according to claim 1, wherein a belt having a substantially round cross section is used as a driving belt for driving the first and / or second driving rollers. 11.

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