JP7128453B2 - Tableware collection device - Google Patents

Description

The present invention relates to a tableware collecting device.

In recent years, securing workers has become socially difficult, and even in restaurants, for example, automatic machines such as conveyors that transport used tableware from the customer seats to the kitchen are widespread (for example, patent See Reference 1).

Japanese Patent No. 4271069

In recent years, with the decrease in the working population, there is a demand for automation of work in restaurants. An example of work that is desired to be automated in a restaurant is the work of collecting used tableware left in the seats. When collecting used tableware from the seats of a restaurant, for example, a worker carries the tableware using a bucket into which a large number of tableware can be put. As a method of automating this, for example, it is conceivable to place used tableware on a conveyor that connects the customer seats and the kitchen.

By the way, restaurants use trays on which a plurality of tableware can be placed in order to efficiently serve food and drinks. Therefore, in a restaurant that uses such trays, when used tableware is transported using a conveyor that connects the customer seats and the kitchen, the tray carrying the used tableware is placed on the conveyor. Therefore, if the tray carried by the conveyor is not removed from the conveyor, the next tray cannot be carried by the conveyor.

Therefore, it is desired that the conveyor be provided with a mechanism for automatically removing the tray placed on the conveyor from the conveyor at the end of the conveying path of the conveyor. When lifting an article, there are two possible methods: a method of grasping the article from above and a method of pushing up the article from below. However, for example, a belt-type conveyor inevitably adopts a form in which articles are placed on a sheet-like belt, so it is difficult to push up articles placed on the belt from below. However, since a plurality of dishes are placed on the tray on which the dishes are placed in various states, it is also difficult to pick up the tray on which the dishes are placed from above by a machine.

Therefore, the present application discloses a technique that enables automatic lifting of trays for tableware that are transported on a transport path using a conveyor.

In order to solve the above-mentioned problems, in the present invention, a conveying path extending from the conveyor at the terminal end of the conveyor is formed by a group of rollers, and a tray is pushed by a pushing-up device that is pushed in and out upward through a gap between a plurality of rollers. decided to push it up.

Specifically, the present invention is a tableware collecting apparatus, comprising: a conveyor on which trays carrying used tableware are placed; a push-up device that is pushed in and out upward from the gaps between the plurality of rollers of the roller group.

In such a tableware collecting device, the conveying path extending from the conveyor is formed by a group of rollers, and the tray is pushed up by a pushing-up device that is put in and taken out from the gap between the rollers. Since the push-up device is put in and out through the gap between the rollers, it does not interfere with the rollers. Therefore, even if the conveyor on which the trays carrying the used dishes are placed is of any type, for example, a belt conveyor or a crescent chain conveyor, the trays conveyed by the conveyor can be pushed up.

The push-up device may have a shape that fits in the gap between the rollers, and may have a push-up member that is shaped so as not to interfere with the rollers even when moved up and down. If the push-up device pushes up the tray with such a member, the tray can be stably pushed up by the push-up member.

Further, the roller group may be divided into left and right sides with the center line of the conveying path interposed therebetween, and may have rollers that are independently rotatable on the left and right sides. If the roller group has such a form, for example, even if the conveying path is curved, the tray can move smoothly along the conveying path.

Further, the tableware collecting device may further include an elevating device which is provided above the pushing-up device and supports the tray pushed up by the pushing-up device with a pair of claws from both sides of the tray. If the tableware collecting apparatus is equipped with such a lifting device, it is possible to stock the trays pushed up by the lifting device.

With the tableware collecting device described above, it is possible to automatically raise trays for tableware that are conveyed on a conveying path using a conveyor.

FIG. 1 is an overall configuration diagram of a tableware collecting device according to an embodiment. FIG. 2 is a diagram showing the internal structure of the housing of the ordered food and drink conveying device. FIG. 3 is a diagram showing the internal structure of the stocker. FIG. 4 is a diagram showing a state in which the push-up plate is positioned above the rollers. FIG. 5 is a flow chart showing the operation of the tableware collecting device. FIG. 6 is a first diagram showing movement of the tableware tray realized in the tableware collecting device. FIG. 7 is a second diagram showing movement of the tableware tray realized in the tableware collecting device.

Embodiments of the present invention will be described below. The embodiments shown below are aspects of the present invention, and do not limit the technical scope of the present invention. Each of the embodiments and modifications shown below is suitable for, for example, restaurants serving various food and drink such as sushi, beverages, rice bowls such as ramen and udon, fried chicken and tempura.

FIG. 1 is an overall configuration diagram of a tableware collecting device 1 according to an embodiment (an example of the “tableware collecting device” referred to in the present application). The tableware collecting device 1 includes a lowering conveying device 3 that conveys trays on which used tableware is placed (hereinafter referred to as "tableware trays") from the customer seats of the restaurant to the kitchen, and the tableware trays conveyed by the lowering conveying device 3 are temporarily stored. and a control device (not shown) for controlling the lowering conveying device 3 and the stocker 4 . The downward conveying device 3 is built in the housing of the ordered food and drink conveying device 2 that conveys food and drink from the kitchen to the seating area.

The ordered food/drink transport device 2 forms a transport path from the kitchen to the audience seating area, and transports the food/drinks prepared in the kitchen in response to the customer's order to the seating area. In the audience seating area, for example, as shown in FIG. It is equipped with an order terminal 9 that is designed to An ordered food/drink conveying device 2 receives an order from a customer sitting at one of the seats 7 at an order terminal 9 and transports food/drink prepared in a kitchen to the customer's seat 7 seated by the customer who has placed the order. Note that the ordered food and drink conveying device 2 can also be installed in a stand-up restaurant without counter seats or the like.

A housing of the ordered food/drink conveying apparatus 2 is provided with a tableware insertion port 5 for inserting a tableware tray into a lowering conveying apparatus 3 incorporated in the housing of the ordered food/drink conveying apparatus 2 . The tableware inlet 5 is provided near the top surface of the table 6 so that the tableware can be easily transferred from the table 6 to the lowering conveying device 3. - 特許庁In addition, the tableware inlet 5 is provided at a position corresponding to each customer seat 7 so that the customer sitting at each customer seat 7 can easily lower the tableware tray from the table 6 and transfer it to the conveying device 3 . The tableware inlet 5 is provided with a door that can be opened and closed manually or automatically by button operation.

FIG. 2 is a view showing the structure inside the housing of the ordered food and drink conveying apparatus 2. As shown in FIG. The downward conveying device 3 forms a conveying path of a belt conveyer for conveying tableware trays from the customer seating area to the kitchen inside the housing of the ordered food conveying device 2 . The belt conveyor of the downward conveying device 3 that conveys the tableware trays from the customer seating area to the kitchen is a conveyor that circulates a belt having a width equal to or wider than the width of the tableware trays, which are substantially rectangular in top view. A connecting path 8 extends from the end of the belt conveyor of the lowering conveying device 3 on the kitchen side. The connecting path 8 has a plurality of rollers and forms a right-curved conveying path from the end of the lower conveying device 3 toward the stocker 4 .

1 and 2 show that the counter-type table 6 is provided along the conveying path of the order-ordered food conveying device 2, the restaurant to which the tableware collecting device 1 is applied is It is not limited to such a form. For example, so-called box seats may be provided along the transport path of the ordered food/drink transport device 2, or counter seats and box seats may be provided in a mixed state. Further, in FIG. 1, the ordered food/drink conveying device 2 forms a linear conveying path, and the lowering conveying device 3 also forms a linear conveying path like the ordered food/drink conveying device 2. The ordered food conveying device 2 and the lowering conveying device 3 may form a conveying path having corner portions, for example, by combining a plurality of belt conveyors. In addition, since the stocker 4 is arranged on the side of the conveying path formed by the ordered food conveying device 2, there is a connecting path 8 that forms a right-curved conveying path from the terminal end of the lowering conveying device 3 toward the stocker 4. However, for example, the stocker 4 is arranged at the end of the order food conveying device 2, and the connecting path 8 forming the conveying path from the end of the lowering conveying device 3 toward the stocker 4 is linear. good too.

FIG. 3 is a diagram showing the internal structure of the stocker 4. As shown in FIG. As shown in FIG. 3, the stocker 4 includes an elevating device 41 for vertically elevating the tableware tray, and a push-up device 50 for pushing upward the dish tray drawn out from the communication path 8 at the bottom of the elevating device 41. Prepare. Rollers 57F and 57R are provided at the bottom of the lifting device 41 to support the tableware tray delivered from the connecting path 8 from below. The conveying path formed by the rollers 57F, 57R and the rollers 81L, 81R of the connecting path 8 has a downward slope that gradually descends from the terminal end of the downward conveying device 3 toward the lower part of the lifting device 41 . Stoppers 58F and 58R for stopping the movement of the tableware tray that slides on the rollers 57F and 57R after being extended from the connecting path 8 are provided at the lower part of the lifting device 41 on the side opposite to the connecting path 8. there is The inclination of the connecting path 8 is a very gentle inclination angle so that the tableware does not overturn even if the tableware tray comes into contact with the stoppers 58F and 58R and stops. Therefore, the tableware tray that slides on the rollers 81L and 81R of the connecting path 8 forming a curve with a predetermined curvature and moves to the lower part of the lifting device 41 touches the stoppers 58F and 58R, thereby moving the connecting path 8. Dishes do not overturn even when stopped at the bottom.

The connecting path 8 is composed of rollers 81L arranged on the left side of the center line of the course and rollers 81R arranged on the right side of the center line of the course. Each roller 81L, 81R is rotatable independently of each other. Therefore, the connecting path 8 is divided into left and right sides across the center line of the course, and is composed of rollers 81L and 81R that are independently rotatable on the left and right sides. Therefore, the connecting path 8 moves the dish tray as follows.

That is, the tableware tray transferred from the terminal end of the lowering conveying device 3 to the connecting path 8 having a downward slope begins to descend the connecting path 8 while rolling on the rollers 81L and 81R by its own weight. The rollers 81L and 81R forming the curve of the communication path 8 are rotatable independently of each other, and the rotation axes of the rollers 81L and 81R are perpendicular to the center line of the communication path 8. Therefore, from the viewpoint of the tableware tray, as the tableware tray moves over the rollers 81L and 81R in order, the angle of the rotation direction of the rollers 81L and 81R in contact with the tableware tray gradually changes to the corner. It will change inward. Since the dish tray basically advances along the rotation direction of the rollers 81L and 81R in contact with the dish tray, if the angle of the rotation direction of the rollers 81L and 81R in contact with the dish tray changes, the dish tray will move. This route will follow. As a result, the dish tray is traversed inboard of the corner so as to be closer to the centerline of the path of the connecting path 8 without going out of the corner. As a result, the tableware tray smoothly descends the slope of the connecting path 8 and reaches the bottom of the lifting device 41 .

A push-up device 50 at the bottom of the lifting device 41 has a form that fits in the gap between the rollers 57F and 57R. A rod 52 that supports the plate 51 from below, a pulley 54 connected to the lower end of the rod 52 via a crank 53, and a push-up motor 56 that rotates the pulley 54 via a drive belt 55 are provided. A lower end of the crank 53 is connected to the pulley 54 at a position eccentric from the center of the pulley 54 . Also, the rod 52 is attached to a linear guide that is vertically slidable. Therefore, when the pulley 54 is rotated by the push-up motor 56, the push-up plate 51 fixed to the upper end of the rod 52 moves up and down. Then, the rod is arranged so that the push-up plate 51 is above the rollers 57F and 57R at the top dead center of the crank 53 that performs the crank operation, and below the rollers 57F and 57R at the bottom dead center of the crank 53. The length of 52 and the amount of eccentricity of crank 53 are designed. Therefore, when the push-up plate 51 is positioned below the rollers 57F and 57R, the push-up plate 51 does not hinder the advance of the tableware tray moving from the connecting path 8 to the lower part of the lifting device 41. When the push-up motor 56 is activated while the tableware tray is supported by the rollers 57F and 57R, and the push-up plate 51 rises above the rollers 57F and 57R, the tableware tray supported by the rollers 57F and 57R is pushed up. The plate 51 pushes up. In this embodiment, the crank 53 is driven by the motor 56 via the pulley 54, but the rod 52 is not limited to this type of drive system. This embodiment may have a form in which the pulley 54 and the drive belt 55 are omitted, for example, a form in which the crank 53 is directly driven by an orthogonal shaft motor.

The lifting device 41 also includes a lifting mechanism 41L that supports the tableware tray on the left side, and a lifting mechanism 41R that supports the tableware tray on the right side. The lifting mechanism 41L includes lifting belts 43L and 44L to which claws 46L for supporting the tableware tray are attached at regular intervals. The lifting belt 43L is stretched over two pulleys 42L arranged respectively at the upper portion and the lower portion of the lifting device 41, and is given an appropriate tension. Similarly to the lifting belt 43L, the lifting belt 44L is also stretched over two pulleys 45L arranged at the upper and lower portions of the lifting device 41, and is given an appropriate tension. The pulley 42L and the pulley 45L in the lower part of the lifting device 41 are connected to each other by the same rotating shaft, and are driven to rotate by a drive belt 49A that rotates by power transmitted from the lifting motor 47 via the pulley 48. be. Therefore, when the lift motor 47 operates to rotate the pulleys 42L and 45L, the claws 46L attached to the lift belts 43L and 44L move up and down.

The elevating mechanism 41R is similar to the elevating mechanism 41L, and the elevating mechanism 41R includes elevating belts 43R and 44R to which claws 46R for supporting the tableware tray are attached at regular intervals. The lifting belt 43R is stretched over two pulleys 42R, and the lifting belt 44L is stretched over two pulleys 45R. The pulley 42R and the pulley 45R in the lower part of the lifting device 41 are connected to each other by the same rotating shaft, and are rotationally driven by the power of the lifting motor 47 transmitted from the lifting mechanism 41L via the driving belt 49B. . Therefore, when the lift motor 47 operates to rotate the pulleys 42R and 45R, the claws 46R attached to the lift belts 43R and 44R move up and down.

The lifting mechanism 41L and the lifting mechanism 41R operate so that the belt surfaces of the lifting belts 43L and 43R facing each other and the belt surfaces of the lifting belts 44L and 44R facing each other move upward. The claws 46L and 46R attached to the belt surfaces of the lifting belt 43L and the lifting belt 43R facing each other and the belt surfaces of the lifting belt 44L and the lifting belt 44R facing each other have the same height. The lifting mechanism 41L and the lifting mechanism 41R are synchronously operated so as to be the same.

FIG. 4 shows a state in which the push-up plate 51 is positioned above the rollers 57F and 57R. When the elevating mechanism 41L and the elevating mechanism 41R operate, the opposing claws 46L and 46R move upward while maintaining the same height, as indicated by arrows in FIG. When the push-up device 50 operates, the push-up plate 51 moves above the rollers 57F and 57R, and the push-up plate 51 moves below the rollers 57F and 57R. As can be seen by comparing FIGS. 3 and 4, the lifting of the push-up plate 51 and the lifting of the claws 46L and 46R are synchronized. That is, in the stocker 4, at the timing when the push-up plate 51 rises and reaches the top dead center of the crank 53, the claw 46L rotates toward the lifting mechanism 41R side at the pulleys 42L and 45L in the lower part of the lifting device 41. Then, at the pulleys 42R and 45R in the lower part of the lifting device 41, the claw 46R turns toward the lifting mechanism 41L. Therefore, when the tableware tray is placed on the push-up plate 51, when the push-up plate 51 rises and reaches the top dead center of the crank 53, the tableware trays placed on the push-up plate 51 face each other at the lower part of the lifting device 41. It is supported by claws 46L and 46R rotating in the direction and lifted upward.

The operation of the tableware collecting device 1 will be described below. FIG. 5 is a flow chart showing the operation of the tableware collecting device 1. As shown in FIG. The operation of the tableware collecting device 1 will be described along the flowchart shown in FIG.

When the tableware tray on which the used tableware used by the customer at the audience seat 7 is placed is thrown into the tableware insertion port 5 and the lid of the tableware insertion port 5 is closed, the control device of the tableware recovery device 1 moves the lowering conveying device 3. The motor is started to operate the lowering conveying device 3 (S101). Then, when the control device of the tableware collecting device 1 detects that the tableware tray placed on the lowering conveying device 3 has approached the end of the lowering conveying device 3 (S102), the rotation speed of the motor of the lowering conveying device 3 is reduced. to decelerate the lowering conveying device 3 (S103). The approach of the tableware tray placed on the downward conveying device 3 to the terminal end of the downward conveying device 3 can be detected, for example, by an optical sensor or the like installed near the terminal end of the downward conveying device 3 . When the control device of the dish collecting device 1 detects that the tableware tray placed on the lowering conveying device 3 has arrived at the end of the lowering conveying device 3 (S104), it cuts off the power supply to the motor of the lowering conveying device 3. to stop the lowering conveying device 3 (S105).

Next, the control device of the tableware collecting device 1 determines whether or not the uppermost storage space of the storage spaces of the tableware trays formed by the claws 46L and 46R over a plurality of stages in the stocker 4 is vacant. (S106). Whether or not the uppermost storage space of the multiple storage spaces in the stocker 4 is empty can be detected by, for example, an optical sensor provided near the top of the lifting device 41 . When it is determined that the uppermost storage space of the multiple storage spaces in the stocker 4 is vacant and the stocker 4 is not in operation, the control device of the tableware collecting device 1 turns the motor of the lowering conveying device 3 on for a certain period of time. is activated to temporarily operate the lowering conveying device 3, and the tableware tray at the end of the lowering conveying device 3 is moved from the lowering conveying device 3 to the connecting path 8 (S107). When the tableware tray at the end of the lowering conveying device 3 moves from the lowering conveying device 3 to the connecting path 8 , the tableware tray moves by its own weight to the lower part of the lifting device 41 along the slope formed by the connecting path 8 . When the control device of the tableware collecting device 1 detects that the tableware tray has moved to the lower part of the lifting device 41 (S108), it operates the lifting motor 56 so that the lifting plate 51 moves up and down one reciprocation and faces each other. The lifting motor 47 is operated for a predetermined period of time so that the claws 46L and 46R move upward by one step (S109). The control device of the tableware collecting device 1 operates the push-up motor 56 and the lifting motor 47 in this way, so that the tableware tray located under the lifting device 41 is moved to the bottom of the plurality of storage spaces in the stocker 4. Move to storage space.

FIG. 6 is a first diagram showing movement of the tableware tray realized in the tableware collecting device 1. FIG. As shown in FIG. 6(A), when the tableware tray T on which the used tableware used by the customer at the audience seat 7 is placed is thrown into the tableware inlet 5 and the button is operated, the tableware collection device 1 is controlled. The apparatus activates the motor of the lower carrier 3 to operate the lower carrier 3 . When the sensor 3S detects that the tableware tray T placed on the lowering conveying device 3 has arrived at the terminal end of the lowering conveying device 3, the control device of the tableware collecting device 1 detects that the tableware tray T has reached the terminal end of the lowering conveying device 3, as shown in FIG. 6(B). , the lowering conveyor 3 is stopped. Then, the control device of the tableware collecting device 1 temporarily activates the lowering conveying device 3 to move the tableware tray T at the end of the lowering conveying device 3 from the lowering conveying device 3 as shown in FIG. 6(C). Move to contact route 8. When the tableware tray T at the end of the lowering conveying device 3 is placed on the connecting path 8, it moves to the stocker 4 by its own weight, as shown in FIG. 6(D).

FIG. 7 is a second diagram showing movement of the tableware tray realized in the tableware collecting device 1. FIG. When the tableware tray T at the end of the downward conveying device 3 is placed on the connecting path 8, it slides on the connecting path 8 by its own weight, as shown in FIG. 7(A). Then, when the tableware tray T moves to the lower part of the lifting device 41, it comes into contact with the stoppers 58F and 58R and stops as shown in FIG. 7(B). When the tableware tray T reaches the lower part of the lifting device 41, the control device of the tableware collecting device 1 operates the push-up motor 56 so that the push-up plate 51 moves up and down one reciprocation, and the claws 46L and 46R facing each other are moved. The elevating motor 47 is operated for a certain period of time so as to move upward by one step. Then, the tableware tray T placed on the push-up plate 51 is pushed up by the push-up plate 51 as shown in FIG. 7(C). Then, as shown in FIG. 7(D), the tableware tray T placed on the push-up plate 51 is lifted while being supported by the claws 46L and 46R from the left and right sides, and the claws 46L and 46R facing each other are lifted. It is arranged in the lowermost storage space of the multiple storage spaces formed in the stocker 4 .

With the tableware collecting apparatus 1 of the above embodiment, the tableware tray T conveyed by the lowering conveying apparatus 3 can be automatically raised by the push-up apparatus 50 of the stocker 4 . Therefore, with the tableware collecting device 1, the tableware trays T transported by the lowering transport device 3 can be stocked in a state of being stacked in multiple stages by the lifting device 41. - 特許庁Therefore, the staff of the restaurant collectively processes a plurality of tableware trays T stocked in the stocker 4 without collecting the tableware trays T from the table 6 every time the customer sitting on the customer seat 7 finishes eating. be able to.

Further, in the tableware collecting device 1 of the above-described embodiment, the tableware tray T, which is substantially rectangular in top view, is supported from both short sides of the tableware tray T by a pair of claws 46L and 46R. Therefore, compared to the case where the tableware tray T is supported, for example, from the four corners of the tableware tray T or from both long sides of the tableware tray T with a pair of claws, the range of the portion that contacts the tableware tray T can be suppressed. . The reason for this is that, for example, in a configuration in which the tableware tray T is supported by the claws provided at the four corners of the tableware tray T, when it is possible to accommodate tableware trays T of various sizes, the claws provided at the four corners of the tableware tray T , it is necessary to cope with both the variations in the length of the long sides and the variations in the length of the short sides of the tableware tray T, and it is necessary to make the claws somewhat large. In addition, for example, in a form in which the tableware tray T is supported from both long sides by a pair of claws, the tableware tray T can cope with various center-of-gravity positions of the tableware tray T that vary depending on the state of the dishes placed on the tableware tray T. It is necessary to support a relatively wide range from the center of the long side with the nail. In this regard, if the tableware tray T is supported by the pair of claws 46L and 46R from both short sides of the tableware tray T as in the tableware collecting device 1 of the above-described embodiment, the tableware tray T is supported along the short side direction. Since the variation range of the center-of-gravity position is narrower than the variation range of the center-of-gravity position along the long side of the tableware tray T, the range of the contact portions of the claws 46L and 46R supporting the tableware tray T is limited to the four corners of the tableware tray T or It can be made smaller than when the tableware tray T is supported from both long sides by a pair of claws. If the claws 46L and 46R that support the tableware tray T are made smaller, the structure of the stocker 4 as a whole can be simplified. However, the tableware collecting device disclosed in the present application is not limited to the form in which the tableware tray T is supported from both short sides of the tableware tray T by the pair of claws 46L and 46R. can be supported by a pair of claws from both long sides of the tableware tray T.

Further, in the tableware collecting apparatus 1 of the above-described embodiment, the transfer of the tableware tray T to the lower part of the lifting device 41 is not performed by the lowering conveying device 3 but by the communication path 8 . Then, in the downward conveying device 3, when the tableware tray T conveyed by the downward conveying device 3 approaches the terminal end of the downward conveying device 3, the downward conveying device 3 is decelerated and then stopped. Then, while the stocker 4 is in operation, the lowering conveying device 3 does not move the tableware tray T to the communication path 8. - 特許庁Therefore, for example, compared with a form in which a stopper or the like is provided in the middle of the connecting path 8 to prevent the tableware tray T from entering the lower part of the lifting device 41, the possibility of overturning the tableware placed on the tableware tray T is low.

In addition, in the tableware collection|recovery apparatus 1 of the said embodiment, the stocker 4 was only one unit|set, but the stocker 4 may be provided with multiple units|sets, for example. In this case, the stockers 4 may be arranged in series on one path formed by the connecting path 8, or may be provided on each of a plurality of branch paths formed by the connecting path 8.

Further, in the tableware collecting apparatus 1 of the above-described embodiment, there is only one lowering conveying device 3, but for example, a plurality of lowering conveying devices 3 are provided in parallel, and the tableware trays drawn out from each lowering conveying device 3 are provided. A configuration in which T is conveyed to a common stocker 4 by each lowering conveying device 3 may be adopted.

Further, in the stocker 4 of the above embodiment, the claws 46L, 46R are moved by the lifting belts 43L, 43R, 44L, 44R, but the claws 46L, 46R may be moved by mechanical elements other than belts. Mechanical elements other than belts include, for example, wires, chains, ball screws, and many others.

T Tableware tray 1 Tableware collecting device 2 Ordered food and drink conveying device 3 Lowering conveying device 3S Sensor 4 Stocker 5 Tableware inlet 6 Table 7 Audience seats 8 Communication path 9 Order terminal 41 Lifting devices 41L, 41R Lifting mechanisms 42L, 42R, 45L, 45R, 48, 54 Pulleys 43L, 43R, 44L, 44R Lifting belts 46L, 46R Claws 47 Lifting motors 49A, 49B, 55 Drive belt 50 Push-up device 51 Push-up plate 52 Rod 53 Crank 56 Push-up motor 57F, 57R, 81L, 81R Roller 58F, 58R・・・ Stopper

Claims (3)

a conveyor on which trays with used tableware are placed;
a group of rollers forming a conveying path extending from the conveyor on the terminal end side of the conveyor;
a push-up device that is pushed in and out upward from the gaps between the plurality of rollers of the roller group ,
The push-up device has a form that fits in the gaps between the plurality of rollers, and is shaped so that the portion through which the plurality of rollers pass is notched so as not to interfere with the plurality of rollers even when moved up and down. A plate member having a push-up plate formed so that a part of the edge of the plate member surrounds the tray placed on the plate member from the side,
Tableware collection device. The roller group is divided into left and right sides across the center line of the conveying path, and has rollers that are independently rotatable on the left and right sides,
The tableware collecting device according to claim 1 . A lifting device is provided above the pushing-up device and supports the tray pushed up by the pushing-up device with a pair of claws from both sides of the tray,
The tableware collecting device according to claim 1 or 2 .

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