Ordered food and drink conveying apparatus

This application claims priority to Japanese Patent Application No. 2016-164289 filed on Aug. 25, 2016, the entire contents of which are incorporated by reference herein.

The present invention pertains to an ordered food and drink conveying apparatus.

Over the recent years, restaurants have been providing foods and drinks by use of conveying apparatuses (refer to, e.g., Patent documents 1-3).

Patent Document

[Patent document 1] Japanese Patent Application Laid-Open Publication No. 2005-185326

[Patent document 2] Japanese Patent Application Laid-Open Publication No. 2008-099885

[Patent document 3] Japanese Patent Application Laid-Open Publication No. H11-164764

Problems to be Solved by the Invention

Exemplified as apparatuses that convey ordered foods and drinks to customer seats from a kitchen are a circulation type conveying apparatus to circulate the foods and drinks between the kitchen and the customer seats, and a non-circulation type conveying apparatus to convey the foods and the drinks to the customer seats from the kitchen in a one-way manner. Each of these conveying apparatuses includes a conveying path having a breadth adjusted to a size of a dish or a tray on which to place the food and the drink to be conveyed. Hence, when desiring to convey foods and drinks by using large and small dishes or trays having various sizes, for example, it follows that a conveying path having a relatively large breadth is provided.

However, when a conveying apparatus including the conveying path having the relatively large breadth is provided at a store often using the small dishes for conveying the foods and the drinks, a space for the conveying apparatus becomes futile, resulting in inability of effectively utilizing an area within a limited space of store. When the customer seats are provided on both sides of the conveying path, the conveyance efficiency decreases as far as being unable to simultaneously convey the foods and the drinks to the customer seats on one side and to the customer seats on the other side.

Under such circumstances, the present application discloses an ordered food and drink conveying apparatus capable of restricting an exclusive area and improving conveyance efficiency while enabling conveyance of large and small dishes or trays having various sizes.

Means for Solving the Problems

To solve the problems described above, the present invention prepares a mode for synchronizing motions of conveyors and a mode for asynchronizing the motions thereof as a function of a controller that controls operations of a plurality of conveyors arranged in a side-by-side relationship.

Specifically, an ordered food and drink conveying apparatus disclosed by the present application includes: a plurality of conveyors being arranged in a side-by-side relationship and conveying foods and drinks to customer seats from a kitchen; and a controller controlling motions of the plurality of conveyors, synchronizing the motions of the plurality of conveyors in a first mode selected when there are foods and drinks being so placed as to straddle the plurality of conveyors, and asynchronizing the motions of the plurality of conveyors in a second mode selected when there are none of the foods and the drinks being so placed as to straddle the plurality of conveyors.

The thus-configured ordered food and drink conveying apparatus is capable of synchronizing or asynchronizing the motions of the respective conveyors corresponding to the mode to be selected, and is thereby enabled to convey the foods and the drinks on a dish or a tray having a size large enough not to be placed on one conveyor when selecting, e.g., the first mode without installing a conveyor having a large breadth. When selecting the second mode, it is feasible to simultaneously convey the foods and the drinks to a variety of conveying target places by the respective conveyors. The thus-configured ordered food and drink conveying apparatus is therefore capable of restricting the exclusive area and improving the conveyance efficiency while enabling the conveyance of the large and small dishes or trays having the various sizes.

It is to be noted that the controller may control the motions of the plurality of conveyors, based on any one of the first mode and the second mode selected via an operation means installed at a kitchen. With the ordered food and drink conveying apparatus being equipped with the controller such as this, a staff member at the kitchen is able to switch over the mode with his or her own intention.

The controller may control the motions of the plurality of conveyors, based on any one of the first mode and the second mode selected corresponding to outputs of sensors detecting placement states of the foods and the drinks being placed on the plurality of conveyors. In this case, the sensors may detect existence or non-existence of objects straddling the plurality of conveyors, and the controller may control the motions of the plurality of conveyors, based on the first mode, when the sensors detect the objects straddling the plurality of conveyors, and may control the motions of the plurality of conveyors, based on the second mode, when the sensors detect none of the objects straddling the plurality of conveyors. With the ordered food and drink conveying apparatus being equipped with the controller such as this, the mode corresponding to the conveying object is automatically selectable even when the staff member at the kitchen does not operate to switch over the mode.

Effects of the Invention

The ordered food and drink conveying apparatus is capable of restricting the exclusive area and improving the conveyance efficiency while enabling the conveyance of the large and small dishes or trays having the various sizes.

FIG. 1 is a diagram of a whole configuration of an ordered food and drink conveying apparatus according to an embodiment.

FIG. 2A is a first diagram illustrating screens displayed on an operation panel.

FIG. 2B is a second diagram illustrating screens displayed on an operation panel.

FIG. 3 is a flowchart of contents of control carried out by a controller for the ordered food and drink conveying apparatus.

FIG. 4A is a first diagram illustrating states of conveying foods and drinks.

FIG. 4B is a second diagram illustrating states of conveying foods and drinks.

FIG. 5A is a first diagram illustrating positions of fitting sensors.

FIG. 5B is a second diagram illustrating positions of fitting sensors.

FIG. 5C is a third diagram illustrating positions of fitting sensors.

An embodiment of the invention of the present application will hereinafter be described. The embodiment to be illustrated below is one aspect of the invention of the present application but does not limit in any way the technical scope of the invention of the present application. The embodiment and a modified example, which will hereinafter be illustrated, are suited to restaurants for serving a variety of foods and drinks instanced by sushi, beverages, bowls of wheat flour noodles and other equivalent noodles, deep-fried chickens, deep-fired fishes and vegetables, Chinese soup noodles, and grilled pieces of meat.

FIG. 1 is a diagram of a whole configuration of an ordered food and drink conveying apparatus according to the embodiment. An ordered food and drink conveying apparatus 10 is an apparatus configured to convey dishes of foods and drinks prepared upon receiving ordered from customers to tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 from a kitchen 2 of a restaurant, and forms, as illustrated in FIG. 1 , a conveying path passing aside of the respective tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 at which customers sit to eat and drink. The ordered food and drink conveying apparatus 10 includes main belt conveyors 20 L, 20 R forming a conveying path leading to the tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 from a side of the kitchen 2 of the restaurant, and auxiliary belt conveyors 30 L, 30 R provided in extension from the main belt conveyors 20 L, 20 R on the side of the kitchen 2 to elongate the conveying path. Note that the main belt conveyors 20 L, 20 R are rectilinearly shaped in the present embodiment, and, however, a plurality of main belt conveyors 20 L, 20 R may also be combined to form a conveying path including corner areas.

The main belt conveyors 20 L, 20 R are respectively provided with drive motors capable of controlling rotations independently of each other. The auxiliary belt conveyors 30 L, 30 R are also respectively provided with the drive motors capable of controlling the rotations independently of each other. The respective drive motors are connected to an unillustrated controller, and are controlled based on operation contents inputted to an operation panel and signals given from respective sensors. Operations of the ordered food and drink conveying apparatus 10 , which are attained by the controller, will hereinafter be described.

The controller for the ordered food and drink conveying apparatus 10 , upon performing a conveyance starting operation on the operation panel, operates the auxiliary belt conveyors 30 L, 30 R and the main belt conveyors 20 L, 20 R, thereby conveying the foods and the drinks to the tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 from the kitchen 2 . FIG. 2A is a first diagram illustrating screens displayed on the operation panel. FIG. 2B is a second diagram illustrating screens displayed on an operation panel. FIG. 3 is a flowchart of contents of control carried out by the controller for the ordered food and drink conveying apparatus 10 .

The controller for the ordered food and drink conveying apparatus 10 determines whether a switchover button 41 of a conveying method is pressed against an operation panel 40 (S 101 ). The controller, when making an affirmative determination in step S 101 , executes a switchover process to a conveyance mode (S 102 ). To be specific, the controller changes a setting value of the conveyance mode, which is stored in a self-memory of the controller. An operation screen corresponding to a setting state of the conveyance mode is displayed on the operation panel 40 . For example, when the conveyance mode is an “asynchronous mode”, as illustrated in FIG. 2A , such an illustration is displayed that the conveyors are separated into two lines, i.e., a right-side line and a left-side line; and, when the conveyance mode is a “synchronous mode”, as illustrated in FIG. 2B , an illustration of one line of thick conveyor is displayed. Accordingly, when the controller executes the switchover process of the conveyance mode in step S 102 , the display screen of the operation panel 40 is switched over.

The controller makes a negative determination in step S 101 , or, when executing the process in step S 102 , determines whether a table selection button 42 is pressed against the operation panel 40 (S 103 ). The controller, when making the negative determination in the process of step S 103 , executes processes again in step S 101 but omits a series of processes from step S 104 to step S 110 . The controller, when making the affirmative determination in the process of step S 103 , determines whether the currently selected conveyance mode is the “synchronous mode” (S 104 ). Specifically, the controller refers to the setting value of the conveyance mode, which is stored in the self-memory of the controller.

The controller, when making the affirmative determination in the process of step S 104 , actuates all the conveyors, i.e., the main belt conveyors 20 L, 20 R and the auxiliary belt conveyors 30 L, 30 R (S 105 ). Whereas when making the negative determination in the process of step S 104 , the controller actuates the conveyors on the side of the selected table (S 106 ). For example, the selection button 42 corresponding to the table 3 L 1 or 3 L 2 is selected in a state of the “asynchronous mode” being selected, in which case the controller actuates the main belt conveyor 20 L and the auxiliary belt conveyor 30 L in a process of step S 106 . Further, for instance, the selection button 42 corresponding to the table 3 R 1 or 3 R 2 is selected in the state of the “asynchronous mode” being selected, in which case the controller actuates the main belt conveyor 20 R and the auxiliary belt conveyor 30 R in the process of step S 106 .

Note that the controller may change speeds of the main belt conveyors 20 L, 20 R and the auxiliary belt conveyors 30 L, 30 R, corresponding to the selected conveyance mode. In the “synchronous mode” selected when conveying a relatively large conveyance object straddling the two conveyors arranged in a side-by-side relationship, the controller may also set the speeds of the conveyors slower than in the “asynchronous mode” selected when conveying a relatively small conveyance object.

The controller determines, after executing the process of step S 105 or S 106 , whether the foods and drinks placed so far on the actuated auxiliary belt conveyors 30 L, 30 R are then placed on the main belt conveyors 20 L, 20 R (S 107 ). The controller may also determine whether the foods and drinks placed so far on the actuated auxiliary belt conveyors 30 L, 30 R are then placed on the main belt conveyors 20 L, 20 R, based on, e.g., detection results of sensors installed in the vicinities of boundaries between the auxiliary belt conveyors 30 L, 30 R and the main belt conveyors 20 L, 20 R, or based on an elapse time since having actuated the auxiliary belt conveyors 30 L, 30 R. The controller, when making the affirmative determination in the process of step S 107 , stops the auxiliary belt conveyors 30 L, 30 R (S 108 ). With the auxiliary belt conveyors 30 L, 30 R being stopped, even when the foods and the drinks are in the process of conveyance by the main belt conveyors 20 L, 20 R, the foods and the drinks desired to be conveyed next may be placed on the auxiliary belt conveyors 30 L, 30 R.

The controller determines, after executing the process of step S 108 , whether the foods and the drinks placed on the main belt conveyors 20 L, 20 R arrive at the tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 (S 109 ). The controller may determine whether the foods and the drinks arrive thereat, based on detection results of sensors installed in the vicinities of, e.g., the conveying target tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 , or based on an elapse time since starting the conveyance, the elapse time being preset per position of the conveying target tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 . The controller stops the main belt conveyors 20 L, 20 R when making the affirmative determination in the process of step S 109 (S 110 ).

Note that the “conveyors” are designated by the reference symbols “ 20 L, 20 R” or “ 30 L, 30 R” in the description of steps S 107 through S 110 , and the conveyors to be stopped in steps S 108 , S 110 are, however, any one or both of the conveyors designated by “ 20 L, 20 R” corresponding to the conveyance mode remaining selected by the selection button 42 , and any one or both of the conveyors designated by “ 30 L, 30 R”. The same is applied to the conveying target table that is any one of the tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 .

FIG. 4A is a first diagram illustrating states of conveying the foods and the drinks. FIG. 4B is a second diagram illustrating states of conveying foods and drinks. For example, when desiring to convey the food and the drink on a small dish 1 S conveyable by any one of the main belt conveyors 20 L, 20 R, a staff member existing in the kitchen 2 , after selecting the “asynchronous mode” on the operation panel 40 or confirming that the “asynchronous mode” has been selected, places the dish 1 S on the belt conveyor 30 L (or the auxiliary belt conveyor 30 R) and presses the selection button 42 , at which time the dish 1 S served with the food and the drink is, as illustrated in FIG. 4A , conveyed to any one of the tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 while being placed on the auxiliary belt conveyor 30 L (or the auxiliary belt conveyor 30 R) and the main belt conveyor 20 L (or the main belt conveyor 20 R). For example, when desiring to convey the foods and the drinks on a tray 1 L having a size large enough to straddle both of the main belt conveyors 20 L, 20 R, the staff member existing in the kitchen 2 , after selecting the “synchronous mode” on the operation panel 40 or confirming that the “synchronous mode” has been selected, places the tray 1 L on the auxiliary belt conveyors 30 L, 30 R and presses the selection button 42 , at which time the tray 1 L served with the foods and the drinks is, as illustrated in FIG. 4B , conveyed to any one of the tables 3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 while being placed on the auxiliary belt conveyors 30 L, 30 R and the main belt conveyors 20 L, 20 R.

The ordered food and drink conveying apparatus 10 according to the embodiment is, as described above, enabled to synchronize the main belt conveyors 20 L, 20 R arranged in the side-by-side relationship or to asynchronously operate these conveyors independently of each other. Hence, when conveying, e.g., the dishes 1 S as the relatively small conveying objects, it is feasible to simultaneously convey the foods and the drinks to any one of the tables 3 L 1 , 3 L 2 and any one of the tables 3 R 1 , 3 R 2 by asynchronously operating the main belt conveyors 20 L, 20 R independently of each other. When conveying the tray 1 L as the relatively large conveying object, it is also feasible to convey the tray 1 L having the size large enough not to be conveyed by only any one of the main belt conveyors 20 L, 20 R by simultaneously operating the main belt conveyors 20 L, 20 R so as to synchronize motions of these conveyors.

The ordered food and drink conveying apparatus 10 according to the embodiment is enabled to convey the tray 1 L larger than the breadth of the single conveyor without being equipped with the single conveyor having the breadth large enough to allow the placement of the tray 1 L, and hence it is feasible to restrict an area occupied by the conveying apparatus within a limited space of store, and high conveyance efficiency is obtained because the conveyors arranged in two lines are usable simultaneously when conveying the relatively small dishes 1 S.

Note that in the ordered food and drink conveying apparatus 10 according to the embodiment, one line of conveying path is configured by the two conveyors, i.e., the main belt conveyor 20 L ( 20 R) and the auxiliary belt conveyor 30 L ( 30 R), and each conveying path may be, however, configured by one conveyor and may also be configured by three or more conveyors in series.

In the ordered food and drink conveying apparatus 10 according to the embodiment, the conveyance mode is switched over by the switchover button 41 , and may also be automatically switched over based on a sensor for identifying whether the conveying object is placed in a way that straddles the conveyors arranged in two lines; and there may be added a function to prevent an erroneous operation of an operator by using the sensor and the switchover button 41 in combination.

The sensor for identifying whether the conveying object is placed in a way that straddles the conveyors arranged in two lines is exemplified by a non-contact type sensor instanced by an ultrasonic sensor and an optical sensor capable of identifying differences between shapes and sizes of the conveying objects, a contact type sensor for detecting a physical contact or non-contact with the conveying object, a variety of information reading means instanced by an RFID (Radio Frequency Identifier) for identifying the conveying object by reading identification information attached to the conveying object, an image analyzing device for discriminating between types of the conveying objects by analyzing images of the conveying objects, which are acquired from an image capturing device, a weight sensor for measuring a weight of the conveying object placed on the conveyor, and other various types of sensors.

FIG. 5A is a first diagram illustrating positions of fitting the sensors. FIG. 5B is a second diagram illustrating positions of fitting sensors. FIG. 5C is a third diagram illustrating positions of fitting sensors. When the RFID or the non-contact sensor is used as the sensor for identifying whether the conveying object is placed so as to straddle the 2-line conveyors, as indicated by a reference symbol A in, e.g., FIG. 5A , the sensor is disposed between the auxiliary belt conveyors 30 L, 30 R and is thereby enabled to identify whether the tray 1 L straddles the auxiliary belt conveyors 30 L, 30 R.

When the contact sensor is used as the sensor for identifying whether the conveying object is placed so as to straddle the 2-line conveyors, as indicated by a reference symbol B in, e.g., FIG. 5B , the sensor is provided so that a contact portion protrudes above a conveying surface of the conveyor from between the auxiliary belt conveyors 30 L, 30 R, thereby making it feasible to identify whether the tray 1 L straddles the auxiliary belt conveyors 30 L, 30 R. Note that FIG. 5B illustrates a state of how light emitting/receiving units for area sensors are disposed so as to interpose the auxiliary belt conveyors 30 L, 30 R from both sides on the assumption that the sensors concerned serve also as optical area sensors for detecting the dishes 1 S.

The image analyzing device for discriminating between the types of the conveying objects by analyzing the images of the conveying objects is used as the sensor for identifying whether the conveying object is placed so as to straddle the 2-line conveyors, in which case the image capturing device is, as indicated by a reference symbol C in, e.g., FIG. 5C , provided in such a position as overlooking the auxiliary belt conveyors 30 L, 30 R from above, whereby the conveying object placed on the auxiliary belt conveyors 30 L, 30 R is distinguishable from the dish 1 S or the tray 1 L.

1 S . . . dish

1 L . . . tray

2 . . . kitchen

3 L 1 , 3 L 2 , 3 R 1 , 3 R 2 . . . table

10 . . . ordered food and drink conveying apparatus

20 L, 20 R . . . main belt conveyors

30 L, 30 R . . . auxiliary belt conveyors

40 . . . operation panel

41 . . . switchover button

42 . . . selection button