JP2011105499A - Article conveying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article conveying device capable of charging the power storage device of a working platform unit without reducing the operating efficiency of the working platform unit by charging. <P>SOLUTION: This article conveying device includes traveling rails 3 disposed along a conveying path and the working platform unit 4 having traveling platforms 6 capable of running on the traveling rails 3 while suspending a conveyed article support member 5. The article conveying device conveys an article 2 placed on the conveyed article support member 5 along the conveying path. The traveling working platform 6 comprises a drive means for traveling the traveling working platform 6 on the traveling rails 3. The working platform unit 4 comprises the storage device 15 for supplying electric power to the drive means. The storage device 15 is chargeable within several seconds or minutes. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention includes a traveling rail disposed along a transportation path, and a carriage unit having a traveling carriage capable of traveling on the traveling rail in a state in which a conveyance support member is suspended, and conveys an article. The present invention relates to an article conveyance device that is loaded on an object support member and conveyed along the conveyance path.

  Conventionally, a lifting body that moves up and down via a suspension member with respect to the body of a ceiling-type transport vehicle driven by a mounted battery is lowered to a ground station that performs load transfer work, and is provided on the lifting body. There is a transport system for charging a battery by connecting a charging connector connected to a power connector provided on a ground station (see, for example, Patent Document 1).

Japanese Patent No. 3674065 (page 5, FIG. 1)

  However, in the transport system described in Patent Document 1, in order to charge the battery (power storage device), the ceiling-type transport vehicle (cart unit) must be stopped at the ground station for a predetermined time. When the time is long, since the stop time of the ceiling-type transport vehicle has to be set longer, there is a problem that the operation efficiency of the ceiling-type transport vehicle is lowered.

  The present invention has been made paying attention to such problems, and provides an article transport device that can charge the power storage device of the cart unit without lowering the operation efficiency of the cart unit by charging. With the goal.

In order to solve the above-described problem, an article transporting apparatus of the present invention includes:
A traveling rail disposed along the transportation path; and a carriage unit having a traveling carriage capable of traveling on the traveling rail in a state in which the transportation object support member is suspended. In the article transport apparatus that loads and transports along the transport path,
The traveling carriage has a driving unit that causes the traveling carriage to travel on the traveling rail, and the carriage unit includes a power storage device that supplies power to the driving unit, and the power storage device is within a few seconds to a few minutes. It is possible to charge with.
According to this feature, since the power storage device can be charged almost instantaneously for several seconds to several minutes, the power storage device of the truck unit can be charged without reducing the operation efficiency of the truck unit.

The article conveying apparatus of the present invention is
At least a part of the transport path is provided with a charging device that is connected to the power storage device and charges the power storage device while the carriage unit is moving.
According to this feature, since the trolley unit is charged when it is moving, the trolley unit does not stagnate in a part of the conveyance path where the charging device is located, and without reducing the operation efficiency of the trolley unit. The power storage device of the cart unit can be charged.

The article conveying apparatus of the present invention is
The charging device includes a charging side moving unit that is moved along a moving direction of the cart unit, and the charging device and the power storage device are connected via the charging side moving unit. .
According to this feature, in a state where the carriage unit is moving, the charging side moving unit follows the carriage unit, and the charging apparatus and the power storage apparatus can be smoothly connected.

The article conveying apparatus of the present invention is
The cart unit has a cart side moving unit that is moved to the opposite side to the moving direction of the cart unit, and the charging device and the power storage device are connected via the cart side moving unit. Yes.
According to this feature, the cart-side moving unit can be connected relatively immovably to the charging device while the cart unit is moving, and the connection between the charging device and the power storage device can be smoothly performed. It can be carried out.

The article conveying apparatus of the present invention is
The charging device is supported by the traveling rail.
According to this feature, the charging device can be installed in any part of the conveyance path where the traveling rail is provided, and even if the traveling rail is bent by the load of the carriage unit, the movement due to the bending is transmitted to the charging device. Therefore, the relative positional relationship between the carriage unit and the charging device can be hardly changed, and the charging device and the power storage device can be smoothly connected.

The article conveying apparatus of the present invention is
Guiding means for guiding the connection between the charging device and the power storage device is provided.
According to this feature, the connection between the charging device and the power storage device is guided, and the connection between the charging device and the power storage device can be performed smoothly.

It is a top view which shows the whole image of the article conveyance apparatus in Example 1. FIG. It is a side view which shows a trolley | bogie unit. It is a rear view which shows the trolley | bogie unit in a charging station. It is a top view which shows a traveling cart. It is a perspective view which shows a contact part. 6 is a perspective view showing a contact portion in Embodiment 2. FIG. It is a perspective view which shows a charging arm. (A) is a schematic diagram showing a charging arm and a contact portion of a cart unit that travels through a charging station, (b) is a schematic diagram showing a state where the charging arm and the contact portion are connected, (C) is the schematic which shows the charging arm and contact part which mutually move by driving | running | working of a trolley | bogie unit, (d) is the outline which shows the state by which the connection of the charging arm and the contact part of a trolley | bogie unit was cancelled | released. FIG. It is a rear view which shows the coil in Example 3, and the trolley | bogie unit which drive | works a charging station.

  EMBODIMENT OF THE INVENTION The form for implementing the goods conveying apparatus which concerns on this invention is demonstrated below based on an Example.

  The article conveying apparatus according to the first embodiment will be described with reference to FIGS. 1 to 5. Hereinafter, the left side of FIG. 2 and FIG. 4 will be described as the front side (front side) of the cart unit, and the left side of FIG. 3 will be described as the left side of the cart unit.

  Reference numeral 1 in FIG. 1 denotes an article to which the present invention is applied for transporting a container 2 (see FIG. 2) as an article in the present invention in which automobile parts are housed, for example, in a factory that manufactures automobiles and the like. It is a transport device.

  As shown in FIGS. 1 and 2, the article transporting apparatus 1 is mainly composed of two traveling rails 3 and a plurality of cart units 4 that can travel these traveling rails 3 clockwise in plan view. The container 2 storing the manufactured automobile parts is transported along a transport path toward a next process line (not shown).

  Although not particularly illustrated, each cart unit 4 includes a control device and a transceiver for wireless communication such as a wireless LAN. This control device can transmit the amount of charge in the power storage device 15 to be described later to the operator via the transmitter / receiver, and also controls the running and stopping of the carriage unit 4 by receiving commands from the operator via the transmitter / receiver. ing.

  As shown in FIG. 3, the two traveling rails 3 are pipes made of a metal material such as aluminum or steel, the upper surface 3 a of which is formed in a horizontal plane, along the transport path of the container 2 in the factory. And suspended from the ceiling in the factory. Moreover, as shown in FIG. 1, these two traveling rails 3 are formed in an endless shape by combining a plurality of straight roads 3b and a curved road 3c formed to the right.

  As shown in FIGS. 2 to 4, the cart unit 4 includes a front and rear traveling carts 6, and a carrier as a transported object supporting member in the present invention that holds the container 2 while being suspended from each traveling cart 6. 5. These two traveling carts 6 will be described with respect to the same configuration. In this embodiment, the cart unit 4 is described as having two running carts 6. However, the cart unit 4 has three or more or only one running cart 6 depending on the weight of the article to be conveyed. You may comprise so that it may be provided.

  The traveling carriage 6 has a substantially U-shape when viewed from the front, and a main body portion 6a formed so as to form an H-shape when seen in plan view, and driving means in the present invention for traveling the traveling carriage 6. The motor 7 is mainly composed of a plurality of (four in this embodiment) wheels 8 that rotate in contact with the upper surface 3a of the traveling rail 3 by driving the motor 7.

  The motor 7 is supplied with electric power by being connected to a power storage device 15 to be described later, and is charged at a predetermined location on the traveling rail 3 to charge the power storage device 15 while the carriage unit 4 is moving. A charging station C is provided (see FIG. 1).

  As shown in FIG. 4, the main body 6a is made of a resin material, a metal material, or the like, and the motor 7 is accommodated in the main body 6a. The motor 7 is disposed in the main body 6 a so that the shaft 7 a faces the back side of the traveling carriage 6. A bevel gear 9a is attached to the tip of the shaft 7a.

  Furthermore, each wheel 8 is pivotally supported by the shaft 8a at the left and right end portions of the front portion and the rear portion of the main body portion 6a. Of these wheels 8, the tip of the shaft 8a of the wheel 8 pivotally supported at the right end of the rear portion of the traveling carriage 6 is disposed so as to protrude into the main body 6a.

  A bevel gear 9b that engages with the bevel gear 9a is attached to the tip of the shaft 8a. That is, the wheel 8 pivotally supported at the right end of the rear portion of the traveling carriage 6 constitutes a drive wheel 8b that is driven to rotate independently of the other wheels 8 when the motor 7 is driven. Furthermore, the other wheels 8 constitute a driven wheel 8c.

  As shown in FIG. 3 to FIG. 4, two guide rollers 10 are juxtaposed in the left and right direction at the lower end of the main body 6 a at the front and rear. These guide rollers 10 are pivotally supported so as to be rotatable in the horizontal direction. When the traveling carriage 6 is placed on the traveling rail 3, the guide rollers 10 are arranged in the gap 11 between the traveling rails 3. ing. For this reason, each guide roller 10 is in contact with the side end portions of the two traveling rails 3 while the traveling carriage 6 is traveling, and guides the traveling carriage 6 so as not to be detached from the traveling rail 3.

  Moreover, as shown in FIGS. 2-4, the hanging rod 12 which faces the downward direction is attached to the approximate center of the horizontal direction of the lower end part of the main-body part 6a. An intermediate member 13 formed in a U-shape facing downward in a front view is further attached to the lower end portion of the hanging rod 12 (see FIG. 3). Although not specifically shown, the suspension bar 12 is attached to the intermediate member 13 so as to be relatively rotatable in the horizontal direction.

  And between the front-and-rear intermediate members 13, a connecting rod member 14 facing in the front-rear direction is attached. The front and rear traveling carts 6 are connected to each other through the connecting rod 14, the intermediate members 13, and the suspension rod 12. Furthermore, the upper end portion of the carrier 5 is attached to the lower end portions of these intermediate members 13.

  Specifically, the carrier 5 includes an upper saddle member 5a facing in the front-rear direction, a vertical saddle member 5b extending downward from a front end portion and a rear end portion of the upper saddle member 5a, It is comprised from the mounting plates 5c and 5d for mounting the container 2 attached to the upper part and lower end part between the eaves 5b, and the upper eaves 5a is attached to both the intermediate members 13. It is suspended from the front and rear traveling carts 6. In the present embodiment, the container 2 is placed only on the placing plate 5d attached to the lower end between the vertical saddle members 5b. However, depending on the size of the container 2, the container is placed on the placing plate 5c. 2 may be placed.

  A power storage device 15 for driving the motor 7 of the traveling carriage 6 is attached to the lower end portion of the mounting plate 5d attached to the lower end portion between the vertical saddle members 5b. The power storage device 15 can be charged in an extremely short time. Note that the power storage device 15 in this embodiment can be charged in an almost instantaneous charging time of several seconds to several minutes.

  And each motor 7, the electrical storage apparatus 15, and the control apparatus are connected by the wiring which is not shown in figure. Furthermore, a support bracket 19 having a contact portion 21 connected to the power storage device 15 and a control device by a wiring (not shown) is attached to the left end portion of the connection rod 14 (see FIG. 3).

  Next, the charging station C will be described. As shown in FIGS. 1 and 3, the charging station C is provided on a straight road 3b that travels immediately after the cart unit 4 that travels on the travel rail 3 travels on the curved road 3c. 4 power storage devices 15 can be charged.

  A plurality of (three in this embodiment) charging plugs 17 for charging the power storage device 15 are attached to the straight path 3b in the charging station C. The charging plug 17 includes a transceiver (not shown) for wireless communication such as a wireless LAN, and is connected to a predetermined power source installed in the factory.

  As shown in FIG. 3, a bracket 17a attached to the traveling rail 3, an electric cylinder 17b attached to the bracket 17a, an arm portion 17c that can be expanded and contracted in the front-rear direction by driving the electric cylinder 17b, and an arm portion It is comprised from the terminal 17d of two right and left attached to the front-end | tip of 17c.

  The left and right terminals 17d are attached so as to face downward. Further, a support bracket 19 formed in a substantially L shape in a rear view is attached to the left end portion of the connecting rod member 14. A contact portion 21 is disposed on the support bracket 19, and the contact portion 21 has two conductors 20 connected to the power storage device 15 and the control device by wiring (not shown). The charging plug 17 constitutes the charging device in this embodiment.

  As shown in FIG. 5, the contact portion 21 is formed with two grooves 21 a that open upward and face in the front-rear direction. The conductor 20 is made of a metal material having conductivity such as copper, and is disposed in the groove portion 21a so as to face in the front-rear direction. Furthermore, the conductor 20 arranged in the groove 21a and the terminal 17d of the charging plug 17 are arranged to face each other in the vertical direction.

  When the cart unit 4 charges the power storage device 15 at the charging station C, first, when the cart unit 4 enters the charging station C, the charge amount of the power storage device 15 is measured by the control device. If the amount of charge of power storage device 15 is equal to or less than a predetermined amount, the control device stops driving motor 7 and controls the speed of carriage unit 4 in charging station C to be low speed traveling below the predetermined speed. The cart unit 4 is switched so as to be driven by inertial force. In the present embodiment, “below the predetermined speed” means a state of about 4 km / h or less.

  Further, the control device drives the electric cylinder 17 b to extend the arm portion 17 c downward, and brings the terminal 17 d into contact with the conductor 20 of the contact portion 21. The power storage device 15 can be charged in an almost instantaneous charging time of about several seconds. Therefore, the carriage unit 4 slides the terminal 17d over substantially the entire length in the front-rear direction of the conductor 20, and the charging of the power storage device 15 is completed in a short time when the terminal 17d is in sliding contact with the conductor 20. be able to.

  Further, when the charge amount of the power storage device 15 is equal to or larger than the predetermined amount, the drive of the motor 7 is maintained as it is and the cart unit 4 is allowed to pass through the charging station C. By doing in this way, unnecessary charge can be eliminated and the conveyance of the container 2 by the cart unit 4 can be made efficient.

  As described above, in the power storage device 15 in the article transporting apparatus 1 in the present embodiment, the traveling carriage 6 has the motor 7 that causes the traveling carriage 6 to travel on the traveling rail 3, and the carriage unit 4 supplies power to the motor 7. Since the power storage device 15 can be charged within a few seconds to a few minutes, the power storage device 15 can be charged almost instantly from a few seconds to a few minutes. The power storage device 15 of the carriage unit 4 can be charged without reducing the operation efficiency of the unit 4.

  Further, at least a part of the transport path is provided with a charging plug 17 that is connected to the power storage device 15 and charges the power storage device 17 while the cart unit 4 is moving, so that the cart unit 4 is moving. In order to charge, the trolley | bogie unit 4 does not get stuck in a part of conveyance path | route with the charging plug 17, and can charge the electrical storage apparatus 15 of the trolley | bogie unit 4 without reducing the operation efficiency of the trolley | bogie unit 4. it can.

  In addition, since the charging plug 17 is supported by the traveling rail 3, the charging plug 17 can be installed at any location on the conveyance path where the traveling rail 3 exists, and the traveling rail is driven by the load of the carriage unit 4. 3 is bent, the movement due to the bending is also transmitted to the charging plug 17, so that the relative positional relationship between the carriage unit 4 and the charging plug 17 is hardly changed. 15 can be smoothly connected.

  Next, an article conveying apparatus according to the second embodiment will be described with reference to FIGS. In addition, the same structure as the said Example and the overlapping structure are abbreviate | omitted. Hereinafter, the upper side of the sheet of FIG. 8 will be described as the front side (front side) of the carriage unit.

  In the charging station C according to the second embodiment, a support bracket 18 extending from the left end of the traveling rail 3 is attached. The support bracket 18 has its tip end extended to the vicinity of the left end of the connecting rod 14 of the carriage unit 4.

  As shown in FIG. 6, a contact portion 22 is attached to the left end portion of the connecting rod 14 in the second embodiment. The contact portion 22 includes a base portion 22a fixed to the left end portion of the connecting collar 14, and a swing arm portion serving as a carriage side moving portion in the present invention pivotably supported from the base portion 22a in the horizontal direction. 22b and two upper and lower conductors 22c attached to the tip of the swing arm portion 22b.

  Specifically, the swing arm portion 22b is disposed by being urged by a spring (not shown) provided in the base portion 22a so that the tip portion thereof faces the left front of the cart unit 4 (see FIG. 8 (a)). Further, the tip end portion of the swing arm portion 22b is formed in a cylindrical portion 22d that faces in the vertical direction, and two upper and lower conductors 22c are attached over substantially the entire length of the outer peripheral surface of the cylindrical portion 22d.

  As shown in FIG. 7, a charging arm 23 is attached to the support bracket 18. The charging arm 23 includes a swinging arm portion 23a as a charging side moving portion in the present invention pivotally supported from the support bracket 18 so as to be swingable in the horizontal direction, and a telescopic arm capable of extending and contracting from the tip of the swinging arm 23a. It is mainly comprised from the part 23b and the upper and lower two terminals 23c attached to the front-end | tip part of the expansion-contraction arm part 23b.

  Specifically, the swing arm portion 23a is arranged with respect to the support bracket 18 by a spring (not shown) so that the tip portion thereof faces the right rear side of the traveling rail 3 (see FIG. 8A). ). The telescopic arm portion 23b is biased in the extending direction by a spring (not shown) provided in the swing arm portion 23a. Further, the distal end portion of the telescopic arm portion 23b is formed in an arcuate holding portion 23d as guide means in the present invention that can hold the cylindrical portion 22d of the swing arm portion 22b. Two upper and lower terminals 23c are attached to the inner peripheral surface of the holding portion 23d.

  In this embodiment, the charging arm 23 constitutes a charging device. Furthermore, the conductor 22c is connected to the power storage device 15 by a wiring (not shown), and the terminal 23c is connected to a predetermined power source in the factory by a wiring (not shown).

  When charging the power storage device 15 of the trolley unit 4, first, as shown in FIG. 8A, after the trolley unit 4 enters the charging station C, the control device starts the charging station of the trolley unit 4. The speed in C is controlled to be low speed traveling below a predetermined speed, and the carriage unit 4 is switched so as to travel by inertial force. In the present embodiment, “below the predetermined speed” means a state of approximately 1 km / h or less.

  Then, as shown in FIG. 8B, the cylindrical portion 22d of the contact portion 22 is held in the holding portion 23d of the charging arm 23 by the advancement of the cart unit 4, and the conductor 22c and the terminal 23c come into contact with each other. Thus, charging of the power storage device 15 is started.

  In this state, the carriage unit 4 travels with an inertial force, so that the swing arm portion 22b swings rearward against the urging force of a spring (not shown) in the base portion 22a. The moving arm portion 23a is swung toward the front side against the urging force of a spring (not shown) between the moving arm portion 23a and the support bracket 18. At the same time, the telescopic arm portion 23b is pushed into the swing arm portion 23a against the urging force of a spring (not shown) in the swing arm portion 23a by receiving a pressing force from the swing arm portion 22b ( (Refer FIG.8 (c)).

  The power storage device 15 can be charged in an almost instantaneous charging time of about several seconds. Therefore, charging of the power storage device 15 can be completed in a short time when the cart unit 4 passes the charging station C.

  Further, as shown in FIG. 8 (d), the telescopic arm portion 23b is extended toward the outside of the swing arm portion 23a by a biasing force of a spring (not shown) in the swing arm portion 23a. After the extension, the holding of the cylindrical portion 22d by the holding portion 23d is released, the contact between the conductor 22c and the terminal 23c is released, and the charging of the power storage device 15 is finished.

  When the holding of the cylindrical portion 22d is released, the swinging arm portion 23a is again moved to the right side of the traveling rail 3 shown in FIG. 8A by the biasing force of the spring (not shown) with the support bracket 18. Restored to the initial position facing backwards. Similarly, the swing arm portion 22b is restored to the initial position facing the left front of the carriage unit 4 by the biasing force of the spring in the base portion 22a.

  In addition, the charging arm 23 includes a swing arm portion 23a that is moved along the moving direction of the carriage unit 4, and the charging arm 23 and the power storage device 15 are connected via the swing arm portion 23a. In the state where the carriage unit 4 is moving, the swing arm portion 23a follows the carriage unit 4, and the charging arm 23 and the power storage device 15 can be smoothly connected.

  Further, the cart unit 4 has a swing arm portion 22b that is moved to the opposite side to the moving direction of the cart unit 4, and the charging arm 23 and the power storage device 15 are connected via the swing arm portion 22b. Thus, the swing arm portion 22 b can be connected to the charging arm 23 so as not to move in a state where the carriage unit 4 is moving.

  Further, by providing the holding portion 23d for guiding the connection between the charging arm 23 and the contact portion 22, the connection between the charging arm 23 and the contact portion 22 can be smoothly performed in a state where the carriage unit 4 is moving at a predetermined speed. Can be done.

  Next, an article conveying apparatus according to Example 3 will be described with reference to FIG. In addition, the same structure as the said Example and the overlapping structure are abbreviate | omitted. In the following description, the back side in FIG. 9 is the front side (front side) of the cart unit, and the left side in FIG. 9 is the left side of the cart unit.

  As shown in FIG. 9, a coil 24 is attached to the left end portion of the connecting rod 14 in the third embodiment. The coil 24 is connected to the power storage device 15 by a wiring (not shown).

  On the other hand, a coil 25 is attached to the left end portion of the traveling rail 3 in the charging station C via a support bracket 26. The coil 25 is connected to a predetermined power source in the factory. The coils 24 and 25 are arranged so as to face each other when the carriage unit 4 travels through the charging station C. In this embodiment, the coil 25 constitutes a charging device.

  In the present embodiment, when the cart unit 4 charges the power storage device 15 at the charging station C, first, the control device of the cart unit 4 stops driving the motor 7, and the cart unit 4 in the charging station C is stopped. The speed is controlled to be low speed traveling below a predetermined speed, and the carriage unit 4 is switched so as to travel by inertial force.

  When the cart unit 4 travels on the right side of the coil 25 at a low speed, an induced electromotive force is generated in the coil 24 by the current flowing through the coil 25. The power storage device 15 is charged by the induced electromotive force generated in the coil 24.

  The power storage device 15 can be charged in an almost instantaneous charging time of about several seconds. Therefore, charging of the power storage device 15 can be completed in a short time when the cart unit 4 passes the charging station C.

  Charging of the power storage device 15 of this embodiment is performed by connecting the power storage device 15 and the charging device outside the cart unit 4 because the power storage device 15 is in contact with the charging device outside the cart unit 4. When performing, it becomes unnecessary to contact connection parts, such as a terminal, and a use part can be simplified.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the first to third embodiments, the present invention is applied to the article conveying apparatus 1 including the carriage unit 4 that can travel along the traveling rail 3 while the carrier 5 is suspended. It can also be applied to a transporting carriage of a type.

  In the first to third embodiments, when the cart unit 4 enters the charging station C, the control device stops driving the motor 7, and the speed of the cart unit 4 in the charging station C is lower than a predetermined speed. The power storage device 15 is charged in a state where it is switched so that the power storage device 15 is charged. However, the power storage device 15 may be charged while the carriage unit 4 is traveling normally at high speed in the charging station C. .

1 article transport device 2 container (article)
3 traveling rail 4 cart unit 5 carrier (conveyance support member)
6 Traveling cart 7 Motor (drive means)
15 Power storage device 17 Charging plug (charging device)
17b Electric cylinder 20 Conductor 21 Contact part 22 Contact part 22b Swing arm part (cart side moving part)
22c Conductive part 22d Cylindrical part 23 Charging arm (charging device)
23a Swing arm part (charge side moving part)
23b Telescopic arm part 23c Terminal 23d Holding part (guide means)
24, 25 Coil (charging device)
C Charging station

Claims (6)

A traveling rail disposed along the transportation path; and a carriage unit having a traveling carriage capable of traveling on the traveling rail in a state in which the transportation object support member is suspended. In the article transport apparatus that loads and transports along the transport path,
The traveling carriage has a driving unit that causes the traveling carriage to travel on the traveling rail, and the carriage unit includes a power storage device that supplies power to the driving unit, and the power storage device is within a few seconds to a few minutes. It is possible to charge with an article transporting device.   The article transport apparatus according to claim 1, wherein a charging device that is connected to the power storage device and charges the power storage device while the carriage unit is moving is provided in at least a part of the transport path.   The charging device includes a charging side moving unit that is moved along a moving direction of the cart unit, and the charging device and the power storage device are connected via the charging side moving unit. The article conveying apparatus according to claim 2.   The cart unit includes a cart side moving unit that is moved to the opposite side of the moving direction of the cart unit, and the charging device and the power storage device are connected via the cart side moving unit. The article conveying apparatus according to claim 2 or 3.   5. The article conveying apparatus according to claim 2, wherein the charging device is supported by the traveling rail.   The article conveying apparatus according to claim 2, further comprising a guide unit that guides connection between the charging device and the power storage device.

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