JP2003252433A - Circulation type food and drink conveying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulation type food and drink conveying device capable of traveling on an endless conveying passage in the stable state so that the food and drink conveying body is not disturbed even in a turn passage or a by-path passage. <P>SOLUTION: In the circulation type food and drink conveying device conveyed utilizing magnetic force of a magnet 17, front and rear magnets 24, 25 are provided on a food and drink conveying body 3 at a space on two-dividing line O-O passing a center of the conveying body and at least each one midway magnet 26, 26 is provided between these front and rear magnets 24, 25 at right/ left symmetrical positions against the two-dividing line O-O. The magnets disposed below the conveying passage are constituted as a large number of circulation-travelably conveying magnets 17 installed at a constant space. The conveying magnets 17 and the front and rear magnets 24, 25 are arranged such that different magnetic poles of the magnet are opposed to each other (S and N). The conveying magnets 17 and the midway magnet 26 are arranged such that the same magnetic poles of the magnet are opposed to each other (S and S). <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulation system for carrying a food / drink carrier placed on an endless carrier path having at least a turning circuit by utilizing the magnetic force of a magnet arranged below the carrier path. Type food and drink conveying device.

[0002]

2. Description of the Related Art As a circulation type food and drink conveying device used in a sushi restaurant, which is commonly referred to as a revolving sushi, conventionally, as shown in FIG. 10 to FIG. There is known a circulation type food and drink conveying device that conveys by using a magnetic force that does not damage the conveying path. FIG. 10 is a side view of a conventional circulation type food and drink conveying device using magnetic force, FIG. 11 is a plan view of a conveyance tray, and FIG. 12 is a conventional circulation type food and drink conveying device using a magnetic force. FIG. 13 is a plan view of the device, and FIG. 13 is a plan view of a conventional circulation type food and drink conveying device using a magnetic force having a bypass path.

As shown in FIG. 10, the conventional circulation type food and drink conveying apparatus described above is mounted on a conveying apparatus 01 and is conveyed on a conveying tray 02 as a food and drink conveying body made of synthetic resin or crockery. Sushi plate 03 is placed.

In FIG. 10, a magnet type transport mechanism 07 is provided in the guide duct 06. The transport mechanism 07 is an endless drive chain 08 that circulates inside the food and drink counter and a drive chain 08. A permanent magnet 010, which is a circulating transfer magnet, is attached to the upper part of the bracket 09 fixed to the upper end of the guide duct at regular intervals so that the upper end surface is close to the back surface of the guide duct 06.

As is apparent from FIG. 11, the bottom plate 02a of the carrying tray 02 has a permanent magnet 04 serving as a front magnet on a two-divided line OO passing through the center of the carrying tray 02.
And two permanent magnets 05, 05 that are symmetrically arranged with respect to the two-division line OO and serve as rear magnets.
In this case, the front magnet 04 is buried so that the S pole is above and the N pole is below, and the rear magnet 05 is buried so that the N pole is above and the S pole is below. On the other hand, the circulating transfer magnet 010 that moves downward is arranged so that the S pole is located above.

According to the example shown in FIG. 11, in the circulating carrier magnet 010, the front magnet 04 fixed to the bottom of the carrier tray 02 is arranged so that the south pole is located above. Since the N poles are all located below and the rear magnets 05 are all located such that the S poles are located below, the transport trays 0 are arranged on the circulation transport magnets 010 in a row.
When 2 is placed, the carrier tray 02 receives a repulsive force due to the magnetic force substantially upward, and the circulating carrier magnet 010
And the front magnet 04 are attracted to each other.

When the circulating carrier magnet 010 is circulated in a predetermined direction by the drive chain 08, the rear magnet 05 of the carrier tray 02 is arranged in the middle of the circulating carrier magnet 010 and has the same magnetic pole as the circulating carrier magnet 010. Since it is the (S pole), it receives a repulsive force and always tries to stabilize between the two circulating carrier magnets 010. Therefore, the transport tray 02 circulates at the same speed as the traveling speed of the circulating transport magnet 010. Furthermore, since a repulsive force exists between the circulating transport magnet 010 and the rear magnet 05, the transport path is less likely to be damaged during the circulating transport of the transport tray 02.

Further, the front magnet 04 arranged on the dividing line OO of the carrying tray 02 is stabilized in the traveling direction. That is, since the circulating transfer magnet 010 moves substantially in the lower center of the upper surface plate 06a which is the transfer surface, the front magnet 0
4 follows the movement of the circulating transport magnet 010, and the transport tray 02 is stable without meandering to the left or right or changing the direction.

[0009]

However, the above-mentioned conventional circulation type food and drink conveying device is capable of stable traveling when the conveying tray is traveling on a straight road, but the straight road and the straight road are connected to each other. When the traveling path is not a straight line such as a connecting circuit or a bypass path for changing the transportation path, the transportation tray 02 sometimes causes an unstable rolling phenomenon.

More specifically, FIG. 12 is a plan view of the carrying tray used in the above-mentioned circulating type food and drink carrying device when the carrying tray is traveling in the turning circuit. According to FIG. In the process in which the transport tray 02 swings to the swivel entrance position P0, the swivel first position P1, the swivel second position P2, and the swivel third position P3, the front magnet 04 follows the circulating transport magnet 010 and the transport path (one point). Although it moves along the chain line), the rear magnet 05 is governed by the magnetic forces of the two circulating carrier magnets 010, and therefore the circulating carrier magnet 01
0 is not at a symmetrical position equidistant from the moving conveyance path, and the rear part of the conveyance tray 02 turns slightly inward and turns again at the original position, that is, with respect to the conveyance path at the end of turning. It will return to a symmetrical position at a distance.

More specifically, referring to FIG. 12, the position of the rear magnet 05 of the carrying tray 02 at P2 is equal to the left and right positions with respect to the line segment x connecting the circulating carrying magnets 010a and 010b. Therefore, as shown in the transport tray 02 at P3, as the transport path approaches the turning outlet, the position of the rear magnet 05 moves so as to be even with respect to the transport path. This means that the rear part of the transport tray 02 returns to the normal trajectory in the vicinity of the swivel outlet, so that the transport tray 02 swings back and forth, and even if the transport tray 02 returns to a straight road, the roll motion becomes unstable for a while. I will have a presentation.

Further, as shown in FIG.
2 is the right side straight transport path 013 to the left side straight transport path 01
4 is a conveyance roller R provided on the bypass path 012.
When the transport tray 02 comes into contact with the guide member 015R on the right side in the case where the transport tray 02 is short-cut and transported, the transport magnet 010a, which has been pulling the front magnet 04, advances on the straight transport path 013 as it is. In the transport tray 02 in which the front traction force is lost, the rear magnet 05 is only subjected to the repulsive force by the rear transport magnet 010b, and the transport tray 02 is laterally rotated slightly along the guide member 015 after all. It will be moved and carried to the roller R.

The carrying tray 02 carried into the roller R in this manner does not rotate sufficiently and the guide member 015 on the left side is not rotated.
Since it is thrown into the left straight transport path 014 along L and tries to return to the regular position by magnetic force after the throw, the congestion of the transport tray 02 may occur near the entrance of the left straight transport path 014. .

The present invention has been made to solve the above-mentioned problems, and enables a food and drink carrier to travel on an endless carrier path in a stable state without disturbance even in a turning circuit or a bypass path. An object is to provide a circulation type food and drink conveying device.

[0015]

In order to achieve the above object, a circulating food and drink conveying apparatus of the present invention comprises a food and drink carrier placed on an endless conveyor path having at least a turning circuit, A circulation type food and drink conveying device which conveys by utilizing the magnetic force of a magnet arranged below a conveying path, wherein the food and drink conveying device is provided in front of the food and drink conveying device at intervals on a dividing line passing through the center of the conveying device. A rear magnet is provided, and at least one intermediate magnet is provided between the front and rear magnets and at a symmetrical position with respect to the two-division line, and a plurality of magnets are arranged below the transport path. The carrier magnets are arranged at regular intervals and are capable of circulating travel, and the carrier magnets and the front and rear magnets are arranged such that different magnetic poles of the magnets face each other, and the carrier magnets and the intermediate magnets. Is the same pole of the magnet It is characterized by being arranged such that in a direction countercurrent. According to this feature, even on the turning circuit, the front and rear of the food and drink conveying body travel in line with the conveying path of the conveying magnet, so that stable traveling without wobbling is realized even when going out from the rotating circuit to a straight road. it can.

In the circulation type food and drink conveying apparatus of the present invention, it is preferable that the distance between the conveying magnets arranged at the constant distance and the distance between the front magnet and the rear magnet are substantially equal. By doing so, the two transport magnets can be made to substantially coincide with the front and rear magnets, so that it is possible to give a reliable transport to the food / drink transport body with less lateral shake.

In the circulation type food and drink conveying device of the present invention, it is preferable that the intermediate magnet is arranged at an equal distance from the front and rear magnets. In this way, it is possible to transport the food / drink carrier in a well-balanced manner in the front-rear direction.

In the circulation type food and drink conveying apparatus of the present invention, it is preferable that all the magnetic forces of the conveying magnets are substantially the same.
By doing so, the intermediate magnet is placed on the transport path substantially in the center of the two adjacent transport magnets, and the food and drink transporter moves while maintaining this position, so that the food and drink transporter is transported in an orderly and circulated manner. Will be.

In the circulation type food and drink conveying apparatus of the present invention, by the attraction force of the conveying magnet and the front and rear magnets to the conveying path of the food and drink conveying body, the food and drink conveying body by the conveying magnet and the intermediate magnet is moved. It is preferable that the repulsive force with respect to the transport path is larger. With this configuration, the food and drink carrier can be lifted with a comparatively light force, and the carrier path is less likely to be damaged during the circulation and transportation of the food and drink carrier.

In the circulating food and drink conveying apparatus of the present invention, it is preferable that the food and drink carrier is a food and drink container having the front, middle and rear magnets at the bottom. With this, only the food and drink container can be directly transported, and the handling of the transport device is simple.

In the circulation type food and drink conveying device of the present invention, it is preferable that the food and drink carrier is a carrying tray having a food and drink container on an upper part thereof and having the front, middle and rear magnets on a bottom part. By doing this, it is not necessary to attach a magnet or a magnetic body to the food and drink container, and not only the cost of the food and drink container itself can be reduced, but also when the food and drink container is lifted, there is no magnetic effect, which makes the customer feel uncomfortable. Never give.

In the circulating food and drink conveying apparatus of the present invention, it is preferable that the endless conveying path has a bypass path connecting the conveying paths. By doing so, the food and drink carrier can maintain a stable posture even when passing through the bypass path and smoothly transfer to the next path.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external oblique view in which the circulation type food and drink conveying device of the present invention (hereinafter abbreviated as a conveying device) is applied to the conveyance of sushi, and FIG. 2 is a main part taken along line II-II of FIG. 5 is an enlarged vertical front view, FIG. 3 is a vertical side view taken along the line III-III of FIG. 2, FIG. 4 is a bottom view of the food / drink carrier, and FIG.
[Fig. 3] is a schematic view showing the arrangement relationship of magnets of the present invention.

In FIG. 1, a conveyor 2 is provided endlessly on the upper surface of the food / drink counter 1. 3 is a food and drink container made of synthetic resin or seto products that is placed on the carrying device 2 and carried, that is, a sushi plate serving as a food and drink carrier, on which sushi 4 which is food and drink is placed. . Thread bottom 3a of this sushi plate 3 (Fig. 2)
A permanent magnet, which will be described in detail later, is fixed to the center of the bottom plate of the above as shown in FIG.

The transporting device 2 is constructed as shown in FIGS. 2 and 3, and the transporting device 2 is provided on the upper surface of the base 5 standing upright adjacent to the inner end of the food and drink counter 1 (the right end in FIG. 2). Two support brackets 6 are fixed. On the support bracket 6, a rectangular duct-shaped resin duct 7 having a horizontally long rectangular cross section is attached endlessly along the food and drink counter 1.

Guide members 9 functioning as covers are fixedly attached to both side surfaces and an upper surface of the duct 7 so that upward guide portions 9a, 9a project from the both guide members 9 along the conveying path. Has been formed.

On the upper surface of the upper surface plate 7a, which is the outer upper surface of the duct 7, the thread bottom portion 3a forming an annular outer peripheral portion of the bottom surface of the sushi plate 3 is formed.
The flat bottom surface of is in sliding contact. At the time of this sliding contact, the tapered back surface 3b of the sushi plate 3 comes into close proximity to the upper inner edges of the above-mentioned upward guide portions 9a, 9a of the guide member 9, and the sushi plate 3 is conveyed. When moving, it is prevented from largely moving to the left and right.

A magnet type transport mechanism 12 is provided in the duct 7, and the transport mechanism 12 is an endless chain rail bolted onto a support substrate 13 fixed to the upper surface of the guide duct 7. 14, an endless drive chain 15 which is guided by the chain rail 14 to circulate inside the food and drink counter 1, and an upper end surface of a bracket 16 which is fixed to the upper end of the drive chain 15 at regular intervals. Is composed of a permanent magnet 17 which is a conveying magnet mounted so as to be close to the back surface of the guide duct 7.

All of the carrier magnets 17 have the same magnetic force, and the N poles or the S poles are uniformly arranged so as to face the same direction (vertical direction). In the present embodiment, 54 so that the south poles of all the carrier magnets 17 face upward.
The magnets are arranged at m / m pitches and are configured as columnar magnets having a magnetic force in the vicinity of 4500 Gauss.

As shown in FIG. 2, another permanent magnet 19 is attached downward to the lower surface of another downward bracket 18 fixed to the bracket 16. A metal piece (not shown) fixed to the bottom surface of the drinking cup 21 is adsorbed by the lower permanent magnet 19 to be circulated and conveyed in an inverted state. The drinking cup container 21 being transported can be removed by the customer, and it is taken out on the food and drink counter 1 so that the customer can put tea into it and drink. Reference numeral 22 is a hot water heater provided upright on the upper surface of the food and drink counter 1.

Furthermore, the permanent magnets provided on the sushi plate 3 are, as shown in FIG.
4, 25 are arranged so as to face the south pole of the carrier magnet 17 so that the north pole is located below, and the two intermediate magnets 26, 26 are located so that the south pole is located below.

The front and rear magnets 24 and 25 are located on the bisector OO of the sushi plate 3 which is a food and drink carrier, and are approximately 5 in number.
The intervals of 0 m / m are provided. Two intermediate magnets 2
Reference numerals 6 and 26 are substantially in the middle of the front and rear magnets 24 and 25, and are arranged at symmetrical positions with respect to the bisecting line OO. Since the pitch of the carrier magnet 17 is 54 m / m,
The two carrier magnets 17 can be made to substantially coincide with the front and rear magnets 24, 25, and the attraction action thereof can provide the sushi plate 3 with a reliable carrier with less lateral shake.

The intermediate magnets 26, 26 receive the repulsive force of the carrier magnet 17 traveling with the chain 15 and the two carrier magnets 1.
Located in the center of 7, 17, this repulsive force
Since it is larger than the suction force by 4, 25, the thread bottom portion 3a
Is conveyed with its bottom surface in sliding contact with the top plate 7a. During this transportation, the customer can grab the favorite sushi plate 3 by hand and take it out.

The carrying function of the above embodiment will be described in detail. When the carrying magnet 17 is circulated in the direction of the arrow shown in FIG.
Since 6 and 26 try to secure a stable position, they will circulate at the same speed as the traveling speed of the transport magnet 17. Furthermore, since a repulsive force exists between the transport magnet 17 and the intermediate magnets 26, 26, the food and drink container can be lifted with a comparatively light force, and the transport path is damaged when the food and drink container is circulated and transported. It gets harder. In addition, since the attraction force acts on the front magnet 24 and the rear magnet 25, the sushi plate 3 can be stably run with less shaking to the left and right with respect to the conveying direction.

Further, according to this embodiment, since all the carrier magnets 17 have substantially the same magnetic force, the intermediate magnets 26, 2 are provided on the carrier path substantially in the center of the two adjacent carrier magnets 17.
Since 6 is stable and the sushi plate 3 moves while maintaining this position, the sushi plate 3 is circulated and conveyed at regular intervals.

Next, the behavior of the food and drink carrier passing through the turning circuit will be described with reference to FIG. FIG. 6 is a schematic view of a food / drink carrier that moves in a turning circuit. The food / drink carrier 3 has a swirl entrance position P0, a swirl first position P1,
It turns to the turning second position P2 and the turning third position P3, and proceeds to the straight road again.

Since the front and rear transport magnets 17 transport the front magnets 24 and the rear magnets 25 so as to be surely placed on the orbit of the turning circuit, the rear end portion of the food and drink transporting body 3 is at the position P.
The direction can be evenly changed little by little from 1 to P3, and an unstable rolling phenomenon does not occur even when entering a straight road.

Further, the behavior of the food and drink carrier 3 when passing through the bypass will be described with reference to FIGS. 7 to 9. FIG. 7 is a plan view showing a state where the leading food / drink carrier is approaching the bypass path, and FIG. 8 is a plan view showing a state immediately before the food / drink carrier is separated from one straight path. 9 is a plan view showing a state immediately before the food / drink carrier is thrown into the opposite straight transport path. FIG.

In FIG. 7, the first food / drink carrier 3-1.
When the contact member comes into contact with the right guide member 31R provided in the bypass path 30, the transport magnet 17-1, which has been pulling the front magnet 24 up to now, advances along the right straight transport path 32 as it is. Will be lost. However, since the rear magnet 25 has an attractive force with respect to the adjacent carrier magnet 17-2, the rear magnet 25 is on the right straight carrier path 32 until it is separated from the carrier magnet 17-2, as shown in FIG. Of the food / drink carrier 3-1 at the top of the bypass 3
The direction can be largely changed on the drive roller R of 0 according to the angle of the right guide member 31R.

The food / drink carrier 3 with the carrier magnet 17-2 at the top
When the food conveyance body 3-1 is separated from the rear magnet 25 of -1 and travels on the right side linear conveyance path 32, the food / drink conveyance body 3-1 is moved toward the left side linear conveyance path 33 side by the driving roller R as shown in FIG. Be carried. At this time, since the front magnet 24 faces the front in the traveling direction, the front magnet 24 is easily attracted by the transport magnet 17 along the left guide member 31L. Food and drink carrier 3-1
The food and drink transport body 3-2 subsequent to the above is also in the transport start state by the drive roller R. Therefore, unlike the conventional one, there is no congestion on the bypass 30.

If the food / drink carrier 3 is driven by the drive roller R,
Even when the front magnet 24 does not face the conveying magnet 17 on the left side linear conveying path 33 side without performing the normal rotation above, the rear magnet 25 exists at a position 180 degrees away from the front magnet 24. Therefore, the magnet closer to either one is attracted to the carrier magnet 17. Therefore, the food / drink carrier 3 does not rotate largely on the drive roller R as compared with the conventional one having only one magnet for attraction.

In particular, in the present invention, since the magnets attached to the food / drink carrier 3 are arranged symmetrically, there is also an advantage that the front and rear directions of the food / drink carrier 3 need not be taken into consideration when the magnets are placed on the conveyance path. is there.

Although the embodiments of the present invention have been described above with reference to the drawings, the concrete constitution is not limited to these embodiments. For example, a synthetic resin or a setomono is used instead of directly attaching a magnet to the sushi plate 3. Place the sushi plate on the carrier tray as a food and drink carrier made of
Rear and intermediate magnets may be provided. further,
One each of the intermediate magnets across the dividing line, that is, a total of 2
Although the description has been given on the case of arranging them individually, if they are substantially line symmetric with respect to the dividing line, an even number such as a total of 4 or 6 can be appropriately selected. Further, in the above embodiment, the permanent magnets are used in order to simplify the configuration by omitting the complicated power feeding device and the like, but it goes without saying that they may be electromagnets.

[0044]

According to the present invention, the following effects can be obtained.

(A) According to the invention described in claim 1, since the front and rear sides of the food and drink conveying body also travel along the conveying path of the conveying magnet on the turning circuit, the turning circuit is changed to a straight path. Even when you get out, you can achieve stable running without wobbling.

(B) According to the invention of claim 2, 2
Since the two conveying magnets can be made to substantially coincide with the front and rear magnets, it is possible to provide the food and drink conveying body with a reliable conveyance with little lateral deviation.

(C) According to the third aspect of the invention, it is possible to convey the food and drink conveying body which is balanced in the front-rear direction.

(D) According to the invention as set forth in claim 4, the intermediate magnet is placed on the substantially central transport path of the two adjacent transport magnets 17, and the food / drink transport body holds this position. Since it moves as it is, it will be circulated and transported at regular intervals.

(E) According to the fifth aspect of the invention, the food and drink carrier can be lifted with a comparatively light force, and the carrier path is less likely to be damaged when the food and drink carrier is circulated and conveyed.

(F) According to the invention described in claim 6, only the food and drink container can be directly transported, and the handling of the transport device is simple.

(G) According to the invention described in claim 7, it is not necessary to attach a magnet or a magnetic body to the food and drink container, so that not only the cost of the food and drink container itself can be reduced but also when the food and drink container is lifted. Since it is not affected by magnetism, it does not give a strange feeling to customers.

(H) According to the invention described in claim 8, the food and drink carrier can maintain a stable posture even when passing through the bypass path, and can smoothly transfer to the next path.

[Brief description of drawings]

FIG. 1 is an external oblique view in which the circulation type food and drink conveying device of the present invention is applied to convey sushi.

FIG. 2 is an enlarged vertical sectional front view of a main part of line II-II in FIG.

3 is a vertical cross-sectional side view taken along the line III-III in FIG.

FIG. 4 is a bottom view of the food and drink carrier.

FIG. 5 is a schematic view showing a positional relationship of magnets of the present invention.

FIG. 6 is a schematic diagram of a food and drink carrier of the present invention that moves in a rotating circuit.

FIG. 7 is a plan view showing a state in which the leading food / drink carrier is approaching a bypass path.

FIG. 8 is a plan view showing a state immediately before the food / drink carrier is separated from one straight path.

FIG. 9 is a plan view showing a state immediately before a food and drink carrier is thrown into a straight path on the opposite side.

FIG. 10 is a side view of a conventional circulation type food and drink conveying device using magnetic force.

FIG. 11 is a plan view of a carrying tray used in a conventional circulation type food and drink carrying device.

FIG. 12 is a plan view of a conventional circulation type food and drink conveying device using a magnetic force, which has a rotating circuit.

FIG. 13 is a plan view of a conventional circulation type food and drink conveying device using a magnetic force having a bypass path.

[Explanation of symbols]

1 food and drink counter 2 Conveyor 3 Sushi plate (food and drink carrier) 3a thread bottom 3b Tapered back surface 3-1 Lead food and drink carrier 3-2 Subsequent food and drink carrier 4 sushi 5 bases 6 Support bracket 7 ducts 7a Top plate 9 Guide member 9a Upward guide part 12 Magnet type transport mechanism 13 Support substrate 14 Chain rail 15 drive chain 16, 18 bracket 17 Transport magnet 19 permanent magnet 21 cup of tea 22 water heater 24 front magnet 25 rear magnet 26 Intermediate magnet 30 Bypass 31R Right guide member 31L Left guide member 32 Right-hand straight conveying path 33 Left straight conveying path P0-P3 Position of food and drink carrier on the rotating circuit R drive roller

Claims (8)

[Claims] 1. A circulation type food and drink conveying device for conveying a food and drink carrier placed on an endless conveyor path having at least a turning circuit by utilizing a magnetic force of a magnet arranged below the conveyor path. The food and drink carrier is provided with front and rear magnets at intervals on the two-part dividing line passing through the center of the carrier, and between the front and rear magnets and on the two-part dividing line. On the other hand, at least one intermediate magnet is provided at each symmetrical position, and the magnets disposed below the transport path are configured as transport magnets that can be circulated while being installed at a large number of fixed intervals. The rear magnets are arranged so that different magnetic poles of the magnets face each other, and the carrier magnet and the intermediate magnet are arranged so that the same magnetic poles of the magnets face each other. Circulating food and drink transport equipment . 2. The interval between the carrier magnets arranged at a constant interval and the interval between the front magnet and the rear magnet are substantially equal to each other.
The circulating food and drink conveying device according to. 3. The circulation type food and drink conveying device according to claim 1, wherein the intermediate magnet is arranged at an equal distance from the front and rear magnets. 4. The circulation type food and drink conveying device according to claim 1, wherein the magnetic forces of the conveying magnets are all substantially the same. 5. The repulsive force of the conveyance magnet and the intermediate magnet with respect to the conveyance path of the food and drink carrier is greater than the attraction force of the conveyance magnet and the front and rear magnets with respect to the conveyance path of the food and drink conveyance body. The circulation type food and drink conveying device according to any one of claims 1 to 4. 6. The food and drink carrier has a bottom portion, the front portion,
A food and drink container having an intermediate magnet and a rear magnet.
6. The circulation type food and drink conveying device according to any one of 1 to 5. 7. The circulation type according to claim 1, wherein the food / drink carrier is a carrying tray on which a food / drink container is placed and which has the front, middle, and rear magnets on the bottom. Food and drink carrier. 8. The circulating food and drink conveying apparatus according to claim 1, wherein the endless conveying path has a bypass path connecting the conveying paths.