JP7339091B2 - Conveyor and inspection system - Google Patents

Description

The present invention relates to technology for inspecting luggage.

As a technique for inspecting baggage, Patent Document 1 discloses that a guide member corresponding to the side surface shape of an object to be inspected is used so that the object to be inspected is guided along the side surface of the object to be inspected. is disclosed.

JP 2011-102745 A

For example, in an airport or the like, an inspection is performed to examine objects inside baggage while the baggage is being conveyed by a conveying device, in order to prevent dangerous goods from being brought into the baggage. Depending on the package, there are items that are elongated and do not want to be transported by laying them on their side due to the contents, but if they are transported vertically, there is a risk of overturning due to the application of some force. There is
SUMMARY OF THE INVENTION In view of the above background, an object of the present invention is to prevent an object to be inspected from overturning during transportation.

In order to solve the above-mentioned problems, the present invention comprises two conveying surfaces that form an angle of less than 180 degrees and move in the same direction and at the same speed, so that the troughs of the two conveying surfaces are on the lower side. Each conveying surface is inclined with respect to the horizontal plane, and a plurality of belt portions arranged side by side on one side of the endless belt constituting one of the two conveying surfaces constitutes the other of the two conveying surfaces. In a first aspect, there is provided a conveying device for

According to the conveying device of the first aspect, it is possible to prevent the object to be inspected from falling over while being conveyed.

According to the conveying device of the first aspect, compared to the case where both of the two conveying surfaces are formed of endless belts, the size of the device in the width direction can be reduced.

In the conveying device according to the first aspect, a configuration in which the belt portion is guided so that the angle formed by the belt portion and the outer peripheral surface of the endless belt becomes small in a region where an object is not conveyed is a second aspect. may be adopted.

According to the conveying device of the second aspect, when a region for accommodating the belt portion is provided on the outer peripheral surface side of the conveying device, the belt portion can be accommodated in that region.

In the conveying device according to the first aspect, a third aspect is a configuration in which the belt portion is guided so that the angle formed by the belt portion and the inner peripheral surface of the endless belt becomes small in a region where no object is conveyed. may be adopted as

According to the conveying device of the third aspect, when a region for accommodating the band portion is provided on the inner peripheral surface side of the conveying device, the band portion can be accommodated in that region.

In the conveying device according to the second or third aspect, the angle formed by the belt portion and the endless belt approaches the angle of less than 180 degrees in the area before the area where the object is conveyed in the area where the object is not conveyed. A fourth aspect may employ a configuration in which the belt portion is guided in such a manner as to

According to the conveying device of the fourth aspect, it is possible to prevent the band portion from returning to the position at the time of conveying.

The present invention comprises two conveying surfaces that form an angle of less than 180 degrees and move in the same direction at the same speed, and each conveying surface is positioned with respect to a horizontal plane so that the troughs of the two conveying surfaces face downward. A fifth aspect of the present invention provides a conveying device in which the end sides of the endless belt forming one of the two conveying surfaces and the endless belt forming the other of the two conveying surfaces engage with each other in a region for conveying an object. .

According to the conveying device of the fifth aspect, it is possible to make it easier to synchronize the moving speeds of the two conveying surfaces than in the case where the edges are linear.

In the conveying apparatus of the fifth aspect, a constitution is adopted as a sixth aspect in which the width of the one of the two conveying surfaces having a smaller angle with respect to the horizontal plane is narrower than the width of the other conveying surface. good too.

According to the conveying device of the sixth aspect, the installation space of the conveying device can be reduced.

The present invention comprises a conveying device according to the fifth or sixth aspect, and an inspection device for inspecting an object conveyed by the conveying device, wherein the inspection device inspects the two conveying surfaces in the area for inspecting the object in the conveying direction. An inspection system for irradiating inspection waves to both is provided as a seventh aspect.

According to the inspection system of the seventh aspect, it is possible to apply inspection waves to an object conveyed in contact with both of the two conveying surfaces.

In the inspection system of the seventh aspect, a configuration in which the two transport surfaces form an obtuse angle may be employed as an eighth aspect.

According to the inspection system of the eighth aspect, better inspection results can be obtained than when the two conveying surfaces form an acute angle.

Diagram showing the appearance of the baggage inspection system The figure showing an example of the load which a conveying apparatus conveys A diagram showing an example of the movement of the band in the first transition state. A diagram showing an example of movement of the band in the second transition state. The figure showing the conveying apparatus of a modification. The figure showing an example of a movement of the belt part in the 1st transition state of a modification. The figure showing the conveying apparatus of a modification. Enlarged view of edges and edges The figure showing the conveying apparatus of a modification. Represents a modified transport device

[1] Embodiment FIG. 1 shows the appearance of a luggage inspection system 1 according to an embodiment. The luggage inspection system 1 is a system that performs processing for inspecting luggage (mainly luggage to be brought into the cabin) at an airport, for example, for items that are prohibited to be brought in (prohibited items) such as knives. be. The baggage inspection system 1 is an example of the "inspection system" of the present invention.

FIG. 1(a) shows the baggage inspection system 1 viewed from above vertically. FIG. 1(b) shows the luggage inspection system 1 viewed in the horizontal direction. FIG. 1(c) shows the baggage inspection system 1 viewed in the conveying direction A1. A baggage inspection system 1 includes a conveying device 2 and a scanner device 3 . The transport device 2 is a device that transports a package to be inspected. The scanner device 3 is a device that inspects a package conveyed by the conveying device 2, and is an example of the "inspection device" of the present invention.

The conveying device 2 includes a belt conveyor 10 , a band group 20 , a band support member 30 and an accommodation support member 40 . The belt conveyor 10 is a device that conveys a package, which is an object to be inspected, in the conveying direction A1. The belt conveyor 10 comprises a belt 11 , two drive rollers 12 and a plurality of support rollers 13 . The belt 11 is an endless belt having an outer peripheral surface 111 and an inner peripheral surface 112 .

The outer peripheral surface 111 is a surface on which a load conveyed by the conveying device 2 is placed, and is an example of the "conveying surface" of the present invention. A drive roller 12 and a support roller 13 are provided on the inner peripheral surface 112 side of the belt 11 . The two drive rollers 12 are rotated by a motor and gears (not shown) to rotate the belt 11 . The plurality of support rollers 13 support the belt 11 by contacting the inner peripheral surface 112 from the vertically downward side.

The belt 11 is supported by two drive rollers 12 and a plurality of support rollers 13, and transports the load in a transport area B1 in which the outer peripheral surface 111 is substantially flat. As shown in FIG. 1(c), the belt conveyor 10 is installed so that the outer peripheral surface 111 forms an angle θ1 with respect to the horizontal direction A2. This means that the rotation axes of the inner peripheral surface 112, the drive roller 12 and the support roller 13 also form an angle θ1 with respect to the horizontal direction A2.

The belt group 20 is a plurality of belt-like portions connected to one side edge 113 of the outer peripheral surface 111 of the belt 11 . The band group 20 includes band portions 21-1, 21-2, 21-3, 21-4, . , 21-n (n is a natural number). In the following description, each band is referred to as "band 21" when not distinguished from each other.

The belt portion 21 is in the shape of an elongated plate like a belt, and one end in the longitudinal direction is connected to the edge 113 of the belt 11 . The plurality of band portions 21 are arranged side by side along the edge 113 without gaps. The band portion 21 has folds at the portion connected to the belt 11 , and in this embodiment, is connected so as to be bent until it comes into close contact with the outer peripheral surface 111 of the belt 11 .

The belt 11 and the band portion 21 are, for example, one that was originally an endless belt and is processed to form the shape of the band portion 21 by making a cut at one end. In addition, each belt portion 21 may be connected to the belt 11 using a connecting means such as a seal or a hinge. Hereinafter, of the two surfaces of the band portion 21, the surface on the side of the outer peripheral surface 111 that faces the outer peripheral surface 111 when the band portion 21 is bent toward the outer peripheral surface 111 is referred to as the surface 211. The opposite outer surface shall be referred to as the back surface 212 . The belt portion 21 rotates together with the belt 11 to which it is connected.

Depending on the position during rotation, the band 21 is in four different states: a conveying state, a first transitional state, an accommodated state, and a second transitional state. First, the transport state will be described. When the portion of the outer peripheral surface 111 of the belt 11 to which the band 21 is connected is located in the above-described transport area B1, the belt 21 and the outer peripheral surface 111 are in a state of transporting a load. In the example of FIG. 1, the belt portions 21-n, 21-1, and 21-2 are the belt portions 21 in the conveying state. The belt portion 21 is supported on the back surface 212 side by the belt portion support member 30 in the conveyed state.

The belt portion support member 30 is a plate-like member provided on the back surface 212 side of the belt portion 21 in the conveying state. The strap support member 30 has a support surface 301 that contacts the back surface 212 of the strap 21 . In this embodiment, the band support member 30 is fixed so that the support surface 301 forms an angle θ1 with respect to the vertical direction A3. Therefore, the back surface 212 of the belt portion 21 in contact with the support surface 301 and the front surface 211 of the belt portion 21 parallel to the back surface 212 form an angle θ1 with respect to the vertical direction A3 in the conveying state, similarly to the support surface 301. .

Accordingly, the surface 211 of the belt portion 21 forms a right angle with the outer peripheral surface 111 which is inclined by an angle θ1 with respect to the horizontal direction A2 in the conveying state. Since the outer peripheral surface 111 is inclined so that the belt portion 21 side is vertically downward, when placing a load on the outer peripheral surface 111, it is stably placed so as to lean against the belt portion 21.例文帳に追加

FIG. 2 shows an example of a package conveyed by the conveying device 2. As shown in FIG. In FIG. 2, the belt 11 and the belt portion 21 viewed in the conveying direction A1 and the load 5 to be conveyed are shown. An end portion 213 of the surface 211 of the belt portion 21 is connected to one side edge 113 of the outer peripheral surface 111 of the belt 11 . The end portion 213 and the edge side 113 are positioned most vertically downward of the surface 211 and the outer peripheral surface 111 . Therefore, the surface 211 and the outer peripheral surface 111 form a trough portion C1 having a trough-like shape that is lower than the surroundings.

The luggage 5 is a thin bag in the shape of a rectangular parallelepiped, and if it is desired to be more stable, it should be laid down with its largest surface in contact with the outer peripheral surface 111 as shown in FIG. 2(a). Also, if it is placed in the central portion of the outer peripheral surface 111, for example, it may slide down to the trough portion C1 side due to the inclination of the outer peripheral surface 111. FIG. Therefore, if the bottom of the luggage 5 is brought into contact with the surface 211 of the band portion 21 from the beginning as shown in FIG.

However, depending on the contents of the bag, you may not want to lay it down. In that case, as shown in FIG. 2(b), it is preferable to place the load 5 so as to lean it against the surface 211 of the belt portion 21. As shown in FIG. Since the baggage 5 is in the shape of a rectangular parallelepiped and has right-angled corners, by bringing the corners into close contact with the troughs C1, the baggage 5 is stabilized in a state where it will not slide down any more. In addition, when the package 5 is placed on a horizontal surface, it will fall down with a slight impact. can be suppressed.

As described above, the surface 211 of the band portion 21 and the outer peripheral surface 111 of the belt 11 form two conveying surfaces that form an angle of 90 degrees and move in the same direction (conveying direction A1) at the same speed. In the conveying device 2, each conveying surface is inclined with respect to the horizontal plane so that the trough portions C1 of the two conveying surfaces (the surface 211 and the outer peripheral surface 111) are vertically downward. A plurality of band portions 21 arranged side by side on one side edge 113 of the belt 11 constituting one of the two conveying surfaces (outer peripheral surface 111) constitutes the other of the two conveying surfaces (surface 211).

Next, the first transitional state and the accommodated state of the belt portion 21 will be described. The first transitional state is a state in which the belt portion 21 is in the middle of transitioning from the conveying state to the accommodating state. In the example of FIG. 1, straps 21-3, 21-4, and 21-5 are straps 21 in the first transition state. The accommodated state is a state in which the belt portion 21 is accommodated in the gap between the belt 11 and the accommodation support member 40 in this embodiment. In the example of FIG. 1, band portions 21-6, .

FIG. 3 shows an example of movement of the strap 21 in the first transitional state. FIG. 3 shows the belt 11, the band support member 30 and the storage support member 40 as viewed from the conveying direction A1, and only one band 21 for the sake of clarity. A guide member 50 is provided in the housing support member 40 . The guide member 50 is a member that guides the belt portion 21 from the conveying state to the storing state.

The guide member 50 is a rod-shaped member, one end of which is fixed to the housing support member 40 . The guide member 50 is provided at a position where it comes into contact with the band portion 21 that has passed through the conveying region B1 and reached the non-conveying region B2 where no cargo is conveyed, that is, the band portion 21 that has entered the first transition state after finishing the conveying state. ing. In this embodiment, the non-conveying area B2 is an area after the outer peripheral surface 111 of the belt 11 is no longer flat and curved upward along the driving roller 12 .

FIG. 3( a ) shows the belt portion 21 in a conveying state before contacting the guide member 50 . FIG. 3B shows the belt portion 21 passing through the transport area B1 and transitioning from the transport state to the first transition state, with the back surface 212 contacting the guide member 50 and bending toward the belt 11 . FIG. 3( c ) shows the band portion 21 which is further bent toward the belt 11 by the force received from the contacting guide member 50 and whose back surface 212 is in contact with the housing support member 40 .

After FIG. 3C, the belt portion 21 is further folded by the force received from the housing support member 40, and as shown in FIG. is accommodated in an accommodation area D1 provided in the . When the belt portion 21 is completely accommodated in the accommodation area D1, the first transition state ends and the accommodation state is entered. The surface 211 of the belt portion 21 in the accommodated state faces the outer peripheral surface 111, but the surface 211 and the outer peripheral surface 111 may be in contact with each other or may have a gap therebetween.

As described above, in the guide member 50, the angle formed by the band portion 21 and the outer peripheral surface 111 of the belt 11 is smaller than that in the conveying state in the area ahead of the conveying area B1, that is, in the non-conveying area B2 where no cargo is conveyed. The belt portion 21 is guided so as to be The angle formed by the band portion 21 and the outer peripheral surface 111 of the belt 11 is the angle formed by the surface 211 of the band portion 21 on the outer peripheral surface 111 side and the outer peripheral surface 111 .

The angle formed by the surface 211 and the outer peripheral surface 111 in the conveying state is 90 degrees as shown in FIG. 3(a). It is possible to view the angle formed by the surface 211 and the outer peripheral surface 111 as 270 degrees. The angle on the facing side (that is, 90 degrees for the surface 211 and the outer peripheral surface 111) shall be referred to.

By the guide member 50 performing the above-described guidance, when a region for housing the band portion 21 such as the housing region D1 is provided on the outer peripheral surface 111 side of the conveying device 2, the band portion 21 can be accommodated in that region. can be done. The belt portion 21 accommodated in the accommodation area D1 moves in the direction opposite to the conveying direction A1 together with the belt 11. As shown in FIG. While the belt portion 21 is in the accommodated state, the outer peripheral surface 111 of the belt 11 is substantially flat as in the conveyed state.

When the belt 11 reaches the driving roller 12 on the opposite side, the outer peripheral surface 111 becomes a curved surface along the driving roller 12 . Therefore, since the connecting portion of the belt 21 with the belt 11 also moves along the drive roller 12 , the belt 21 comes out of the housing area D<b>1 and gradually separates from the housing support member 40 . At this point, the strap 21 exits the housed state and enters the second transitional state. The second transitional state is a state in which the belt portion 21 is in the middle of transitioning from the housed state to the transported state.

In the example of FIG. 1, straps 21-6 through 21-42 are in the accommodated state, straps 21-43, 21-44, and 21-45 are in the second transition state, and straps 21-46 are in the second transition state. to the belt portion 21-2 are in the conveying state.
FIG. 4 shows an example of movement of the strap 21 in the second transitional state. FIG. 4 shows the belt 11, the band support member 30 and the housing support member 40 as viewed in the conveying direction A1, and only one band 21 for the sake of clarity.

A guide member 60 is provided on the band support member 30 . The guide member 60 is a member that guides the belt portion 21 from the housed state to the conveyed state. The guide member 60 is a bar-shaped member that is bent at two points, and one end of which is fixed to the band support member 30 . The guide member 60 passes through the accommodation area D1 in the non-conveyance area B2 where no cargo is conveyed and reaches the area B3 in front of the conveyance area B1. It is provided at a position in contact with the belt portion 21 .

FIG. 4A shows the belt portion 21 in an accommodated state accommodated in the accommodation area D1. FIG. 4(b) shows the band 21 coming out of the accommodation area D1 and moving from the accommodation state to the second transition state. The belt portion 21 in the second transitional state is no longer restrained by the housing support member 40 and contacts the distal end side of the guide member 60, so that the end portion 213 connected to the outer peripheral surface 111 is the axis. The side opposite to the portion 213 starts to rotate away from the outer peripheral surface 111 .

The belt portion 21 is further rotated as shown in FIG. 4(c) by the guidance of the guide member 60, and rotated to a position where the surface 211 forms a right angle (90 degrees) with the outer peripheral surface 111 as shown in FIG. 4(d). Then, it enters the transport state for transporting the load. The guide member 60 has a shape in which the side fixed to the belt support member 30 bypasses the belt 21 so as not to interfere with the movement of the guided belt 21 .

As described above, the guide member 60 is configured such that the angle formed by the band portion 21 and the outer peripheral surface 111 of the belt 11 in the non-conveying region B2 where the cargo is not conveyed is the area before the conveying region B1 where the cargo is conveyed. The belt portion 21 is guided so as to approach the angle (90 degrees in this embodiment). By providing the guide member 60 as described above, it is possible to prevent the belt portion 21 from returning to the position at the time of transportation.

The belt portion 21 thus brought into the conveying state conveys the load together with the belt 11. - 特許庁An inspection area F1 shown in FIG. 1 is provided in the transport path along which the transport device 2 transports the package. The inspection area F1 is a space where baggage inspection is performed by the scanner device 3 . The scanner device 3 is a device that captures a transmitted image (transmissive image) of an object passing through the inspection area F1 for baggage inspection.

As shown in FIG. 1(c), the scanner device 3 includes an irradiation unit 4 that irradiates electromagnetic waves to packages passing through the inspection area F1. The electromagnetic wave that the irradiating unit 4 irradiates the baggage is an electromagnetic wave in a frequency band that passes through the baggage but has a different transmittance depending on the substance of the contents of the baggage, such as X-rays. The electromagnetic wave emitted by the irradiation unit 4 for inspection of the baggage is an example of the "inspection wave" of the present invention.

Further, the irradiation unit 4 irradiates both the surface 211 of the belt portion 21 and the outer peripheral surface 111 of the belt 11 with electromagnetic waves in the inspection area F1. By irradiating the electromagnetic waves in this way, it is possible to allow the inspection waves to hit an object that is conveyed in contact with both of the two conveying surfaces (the surface 211 and the outer peripheral surface 111). The scanner device 3 generates an image drawn with shading according to the intensity of the electromagnetic wave that has passed through the baggage as a transmission image of the baggage.

[2] Modifications Each of the embodiments described above is merely an example of implementation of the present invention, and may be modified as follows. Also, each embodiment and each modification may be combined as necessary.

[2-1] Accommodated state The accommodation method of the belt portion 21 in the accommodated state is not limited to that described in the embodiment.
FIG. 5 shows a conveying device 2a of this modified example. The conveying device 2a includes a belt conveyor 10a, a band group 20a having a plurality of band portions 21a, a band portion support member 30a, and a guide member 50a, but does not include a storage support member 40 unlike the embodiment.

FIG. 5 shows the conveying device 2a viewed from the side of the band support member 30a. I have to. The belt portion 21a before the belt portion 21a-1 is in the conveying state, the belt portions 21a-2 to 21a-8 are in the first transition state, and the belt portions after the belt portion 21a-9 are in the storage state. The belt portion 21a in the accommodated state is accommodated in an accommodation area D2 provided on the inner peripheral surface 112a side of the belt 11a of the belt conveyor 10a.

The guide member 50a is a member that guides the band portion 21a from the conveying state to the accommodating state. More specifically, the guide member 50a moves the belt portion 21a so that the angle formed by the belt portion 21a and the inner peripheral surface 112a of the belt 11a in the non-conveyance region B2 where no cargo is conveyed is smaller than that in the conveying state. guide. This angle and guide method will be described with reference to FIG.

FIG. 6 shows an example of movement of the belt portion 21a in the first transition state of this modified example. FIG. 6 shows the belt 11a and the band support member 30a as seen from the conveying direction A1, and for the sake of clarity, only one band 21a is shown and the guide member 50a is omitted. FIG. 6(a) shows the belt portion 21a in the conveying state. In the first transition state, the belt portion 21a rotates as shown in FIGS. 6(b) and 6(c), and enters the accommodation state where it is accommodated in the accommodation area D2 as shown in FIG. 6(d). .

In the accommodated state, the back surface 212a of the belt portion 21a faces the inner peripheral surface 112a of the belt 11a. That is, the angle formed by the band portion 21a and the inner peripheral surface 112a of the belt 11a is the angle formed by the inner peripheral surface 112a and the back surface 212a, which is the surface on the inner peripheral surface 112a side, as described in the embodiment. Also, the angle formed by the back surface 212a and the inner peripheral surface 112a is the angle on the side to which those surfaces face, so in the conveying state it is 270 degrees as shown in FIG. 6(a).

The angle formed by the back surface 212a and the inner peripheral surface 112a becomes smaller as the belt portion 21a rotates, and is approximately 180 degrees in FIG. 6(b), approximately 90 degrees in FIG. In the housed state of d), it is approximately 0 degrees. Note that the belt portion 21a is formed by making a cut in one endless belt and processing it, but since the endless belt is an elastic member such as rubber, the belt portion 21a also bends toward the inner peripheral surface 112a and rotates. there is

In addition, the longitudinal dimension E1 shown in FIG. It is smaller than the distance L1. In this modified example, the guide member 50a guides the band portion 21a so that the band portion 21a can be accommodated in the accommodation region D2 provided on the inner peripheral surface 112 side of the conveying device 2a. can be made

[2-2] Two Conveying Surfaces The two conveying surfaces for conveying packages are not limited to those described in the embodiment.
FIG. 7 shows a conveying device 2b of this modified example. FIG. 7(a) shows the conveying device 2b viewed from above vertically. FIG. 1(b) shows the conveying device 2b viewed in the conveying direction A1. The conveying device 2b includes a belt conveyor 10b and a belt conveyor 20b.

The belt conveyor 10b has an endless belt 11b, and the belt conveyor 20b has an endless belt 21b. As shown in FIG. 7B, the belt conveyor 10b is installed so that the outer peripheral surface 111b forms an angle θ1 with respect to the horizontal direction A2. It is installed at an angle of θ1 with respect to . Therefore, the outer peripheral surface 111b and the outer peripheral surface 211b form an angle of 90 degrees.

The belt 11b conveys the load in the conveying area B1 where the outer peripheral surface 111b is substantially flat. One edge 213b of the outer peripheral surface 111b of the belt 21b is connected to or is in contact with one edge 113b of the outer peripheral surface 111b of the belt 11b.
FIG. 8 shows an enlarged view of the edge 113b and the edge 213b. 8A shows the edge 113b and the edge 213b before connection, and FIG. 8B shows the edge 113b and the edge 213b after connection.

Both the edge 113b and the edge 213b have a shape similar to teeth of a straight gear, and when the outer peripheral surface 111b and the outer peripheral surface 211b form an angle of 90 degrees, as shown in FIG. They are designed to mesh with each other. Therefore, the outer peripheral surface 111b of the belt 11b and the outer peripheral surface 211b of the belt 21b constitute two conveying surfaces that move in the same direction at the same speed. The edge 113b and the edge 213b are no longer meshed in the non-transport area B2, but are maintained in the meshed state in the transport area B1.

Thus, in the conveying device 2b, the edge sides (the edge side 113b and the edge side 213b) are meshed in the transport area B1 for transporting objects.

When the belt portion shown in the embodiment is used, the belt portion is bent each time the belt rotates, so that the connection portion is likely to deteriorate. In this modified example, since endless belts are used for both of the two conveying surfaces, deterioration such as that of the belt portion is less likely to occur, and the durability of the conveying device can be enhanced. In addition, since the edges are meshed with each other, it is easier to synchronize the moving speeds of the two conveying surfaces than when the edges are linear.

On the other hand, if both of the two conveying surfaces are composed of endless belts, driving rollers for rotating the endless belts must be provided on both, and the dimensions in the normal direction of the conveying surfaces are increased compared to the belt portion of the embodiment. easy to grow. On the other hand, in the case where the band portion constitutes one conveying surface as in the embodiment, the dimension in the width direction of the conveying device can be made smaller than in the case where both of the two conveying surfaces are constituted by endless belts. can.

[2-3] Width of Conveying Surfaces The relationship between the widths of the two conveying surfaces is not limited to those described in the above examples. The "width" referred to here is the dimension in the direction orthogonal to the conveying direction. For example, in the conveying device 2 of the embodiment, the width of the outer peripheral surface 111 of the belt 11 is larger than the width of the surface 211 of the band portion 21 .

Further, in the conveying device 2b shown in FIG. 7, the width of the outer peripheral surface 111b of the belt 11b is larger than the width of the outer peripheral surface 211b of the belt 21b. In any of these, the width of the conveying surface of the two conveying surfaces with the smaller angle to the horizontal plane (the one with the smaller inclination) is wider than the width of the other conveying surface. The relationship may be reversed.

FIG. 9 shows a conveying device 2c of this modified example. The conveying device 2c includes a belt 11c and a belt portion 21c, and an outer peripheral surface 111c of the belt 11c and a surface 211c of the belt portion 21c constitute two conveying surfaces. The width E11 of the outer peripheral surface 111c, which is the conveying surface of the two conveying surfaces with the smaller angle to the horizontal plane (the one with the smaller inclination), is narrower than the width E12 of the surface 211c, which is the other conveying surface. .

However, in the conveying device 2c, each of the conveying surfaces is inclined with respect to the horizontal plane so that the troughs C2 of the two conveying surfaces are on the lower side in the vertical direction, as in the embodiment. In FIG. 9, the conveying device 2c is conveying a plate-shaped article 5. In FIG. For example, in the conveying device 2 of the embodiment, placing the load 5 with its wide surface 511 in close contact with the outer peripheral surface 111 of the belt 11 is more stable than putting it in close contact with the surface 211 of the belt portion 21 . can.

However, in the conveying device 2c, the width E11 of the outer peripheral surface 111c is narrower than the width E12 of the surface 211c. and become unstable. Therefore, in the conveying device 2c, as shown in FIG. 9, the wide surface 511 of the article 5 is likely to be placed in close contact with the surface 211c.

In this case, since each conveying surface is inclined with respect to the horizontal plane so that the trough portion C2 is downward in the vertical direction, the load 5 leans against the surface 211c and stands up on the horizontal surface. Compared to the case, it is less likely to fall down and is stable. As described above, in this modified example, even if the width of the outer peripheral surface of the belt is narrowed, the plate-shaped load can be stably conveyed. The width of the entire conveying device can be reduced, and the installation space for the conveying device can be reduced.

[2-4] Angle Formed by Conveying Surfaces In each of the above examples, the angle formed by the two conveying surfaces in the conveying device was 90 degrees, but the angle is not limited to this and may be less than 90 degrees or 90 degrees. degree or more, and the angle formed by the two conveying surfaces should be at least less than 180 degrees.
FIG. 10 shows the transport apparatus of this modification as viewed in the transport direction A1.

A conveying device 2d shown in FIG. 10(a) includes a belt 11d and a belt portion 21d. A belt portion support member 30d is provided so as to achieve an angle of less than a degree. A conveying device 2e shown in FIG. 10(b) includes a belt 11e and a belt portion 21e. is 90 degrees or more and less than 180 degrees).

By setting the angle formed by the two conveying surfaces to be less than 180 degrees, the cargo can be transported while leaning against the conveying surface that has a larger angle with respect to the horizontal plane (the one with the greater inclination). Compared to the case, the possibility of falling over is small, and it is possible to carry the load in a state closer to standing rather than laying it on a horizontal surface.

Further, when the two conveying surfaces form an obtuse angle (an angle larger than 90 degrees and smaller than 180 degrees), the electromagnetic waves emitted by the irradiation unit 4 shown in FIG. The angle between the radial direction and the conveying surface becomes close to 90 degrees. As a result, the distance that the electromagnetic wave penetrates the package becomes shorter, and the objects inside the package are less likely to overlap in the image shown by the electromagnetic wave. Therefore, it becomes easy to check the internal objects one by one, and the inspection result can be improved.

[2-5] Object to be Conveyed The present invention is applicable to applications other than baggage inspection. For example, the present invention may be applied to an inspection system that inspects a product while it is being transported in a factory, or to an inspection system that inspects a product while it is being transported in a distribution center. Therefore, the objects to be conveyed are not limited to packages, and any objects to be inspected such as products or conveyed objects may be used.

Further, for example, the conveying apparatus of the present invention may be applied to the work of visually inspecting without applying electromagnetic waves. Regardless of the inspection system or inspection work to which the present invention is applied, each transport surface should be inclined with respect to the horizontal plane so that the valleys of the two transport surfaces of the transport device are on the lower side. Therefore, it is possible to prevent the object to be inspected from overturning during transportation, as compared with the case without this inclination.

DESCRIPTION OF SYMBOLS 1... Baggage inspection system, 2... Conveying apparatus, 3... Scanner apparatus, 4... Irradiation part, 10... Belt conveyor, 11... Belt, 20... Band group, 21... Band part, 30... Band part support member, 40... Storage Support member, 50... Guide member, 60... Guide member.

Claims (8)

It has two conveying surfaces that form an angle of less than 180 degrees and move in the same direction at the same speed, and each conveying surface is inclined with respect to the horizontal plane so that the valleys of the two conveying surfaces face downward. ,
A plurality of band portions arranged side by side on one side of the endless belt constituting one of the two conveying surfaces constitutes the other of the two conveying surfaces.
Conveyor . 2. The conveying device according to claim 1 , wherein the belt portion is guided so that the angle formed by the belt portion and the outer peripheral surface of the endless belt becomes small in a region where no object is conveyed. 2. The conveying device according to claim 1 , wherein the belt portion is guided so that an angle formed by the belt portion and the inner peripheral surface of the endless belt becomes small in a region where no object is conveyed. 4. The band portion is guided so that the angle formed by the belt portion and the endless belt approaches the angle of less than 180 degrees in a region in front of a region in which an object is conveyed among regions in which the object is not conveyed. A conveying device as described. It has two conveying surfaces that form an angle of less than 180 degrees and move in the same direction at the same speed, and each conveying surface is inclined with respect to the horizontal plane so that the valleys of the two conveying surfaces face downward. ,
The end sides of the endless belt forming one of the two conveying surfaces and the endless belt forming the other of the two conveying surfaces are meshed in the area where the object is conveyed.
Conveyor . 6. The conveying apparatus according to claim 5 , wherein the width of the conveying surface having a smaller angle with respect to the horizontal plane is narrower than the width of the other conveying surface. 7. The transport apparatus according to claim 5 or 6 , and an inspection apparatus for inspecting an object transported by the transport apparatus, wherein the inspection apparatus inspects both of the two transport surfaces in an area for inspecting the object in the transport direction. An inspection system that emits waves. 8. The inspection system of claim 7 , wherein the two transport planes form an obtuse angle.

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