JP2003322090A - Tube pump and food and drink supplying device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tube pump capable of preventing a back flow of liquid. <P>SOLUTION: A spindle 24 having both end parts fixed to a pair of rotating plates 23 is inserted into a guide groove 25 formed on a roller plate 22 in a circumferential direction to rotatably hold the rotating plates 23 and 23 on the roller plates 22 and 22. By slidably inserting a rotary shaft 26 of a roller 20 into an oblong hole 27 formed longer in the radial directions of the roller plates 22 and 22 and connecting the rotary shaft 26 to the spindle 24 via a link member 28, rotational force is transformed to a linear motion by the link member 28 and is transmitted to the rotary shaft 26 when rotating the rotating plates 23 reversely, and the roller 20 is moved in a direction for separating the roller 20 from a tube 7. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube pump for pressing a tube to deliver the liquid in the tube by rotating a roller plate having a plurality of rollers arranged on the circumference in a forward direction, and the tube pump. The present invention relates to a food and drink supply device using.

[0002]

2. Description of the Related Art In recent years, a food and drink supply device used to provide favorite drinking water or the like is provided with a packaging container filled with juice or the like in addition to a type in which juice or the like is provided in a can. , In many cases, juice is infused into paper cups from the packaging container to meet the demand. In particular, the latter can be offered in a paper cup that is easy to handle and does not need to be recovered, such as coffee and juice, and shakes provided at fast food restaurants. It is low in cost, so it has recently become popular. However, unlike the ones that are pre-packaged in cans and sold,
In order to maintain the customer's trust, it is necessary to constantly inject a predetermined amount of drinking water into a paper cup or the like, and therefore many have a tube pump built-in. As one of the tube pumps, for example, there is one disclosed in Japanese Patent Laid-Open No. 7-217541 as shown in FIGS.

FIG. 17 is a view showing a tube pressing state of a conventional tube pump 100. FIG. 18 is a diagram showing a tube open state of the conventional tube pump 100. In the tube pump 100, a roller holding member 103 is rotatably provided in a space 102 formed in a main body 101,
A plurality of rollers 104 provided on the roller holding member 103 presses the tube 105 to deliver the drinking water in the tube 105.

A drive shaft 106 for transmitting a drive force of a motor (not shown) is provided in the space 102 of the main body 101, and a roller holding member 103 is mounted on the drive shaft 106.
The roller holding member 103 is formed by rotatably fitting a pair of rotary supports 108 to both ends of a rotary drive body 107 connected to the drive shaft 106.
Are rotatably supported by the rotary supports 108, 108. The rollers 104 are configured to linearly reciprocate in the radial direction by a cam mechanism.

A rotary shaft 109 that rotatably supports each roller 104 is held in a state that it is inserted into an elongated hole 110 formed in a pair of rotary supports 108 in the radial direction, and both ends thereof are rotationally driven. Are in contact with a plurality of cams 111 ... Each cam 111
The rotary shaft 107 is configured to be pushed outward when the rotary drive body 107 rotates in the forward direction, and to be pushed inward when the rotary drive body 107 is rotated in the reverse direction. A tube 105 for connecting to a packaging container (not shown) filled with drinking water is assembled between the roller 104 and the inner wall of the space 102 of the main body 101.

In such a conventional tube pump 100, when the rotary drive body 107 is normally rotated in a predetermined direction (the direction of the arrow shown in FIG. 17), each cam 111 is normally rotated and pushes the rotary shaft 109 outward so that the length of the rotary shaft 109 increases. 1 along the hole 110
It is moved to the pressing position shown in 7. Each roller 104 is
When moving integrally with the rotary shaft 111 to the pressing position shown in FIG. 17, the rotational force of the drive shaft 106 causes the rotary drive body 107, the cam 111 of the rotary drive body 107, the long hole 110 of the rotary support body 108, and the rotary shaft 109 to rotate. It is transmitted through the rotary drive body 107 and is rotated integrally with the inner wall 102 of the main body 101 to sequentially crush and deform the tube 105, thereby continuously delivering a fixed amount of drinking water in the X direction. To do.

Then, when the operation of the food and drink supply device is stopped for a long time, the rotary drive body 107 is rotated in the reverse direction to the predetermined direction (the direction of the arrow shown in FIG. 18), and the roller 1 is rotated.
The pressing force of 04 on the tube 105 is released. When the rotary driver 107 is rotated in the reverse direction, the cam 111 and the rotary shaft 10 are rotated.
The positional relationship with 9 is displaced from the state shown in FIG. 17 to the state shown in FIG. 18, and the rotary shaft 109 is pushed up by the cam 111, and becomes a free state. Therefore, each roller 1
When 04 touches the tube 105, the tube 105
Is pushed inward by the restoring force of the tube 105
Do not crush.

Therefore, according to the tube pump 100,
When the tube pump 100 is stopped for a long period of time, as shown in FIG. 18, if the roller holding member 103 is rotated in the reverse direction so that each roller 104 can be pushed inward, the tube 105 can be extended to the roller 104. It is possible to prevent crushing for a time and plastic deformation. When the tube 7 is plastically deformed, the flow rate of the stock solution filled between the closed portions crushed by the roller 104 varies, which is effective in that it can be avoided.

[0009]

[Patent Document 1] Japanese Patent Application Laid-Open No. 7-217541 (3rd to 7th)
(Page 4, Figures 1 and 3)

[0010]

However, the conventional tube pump 100 has a problem that the drinking water in the tube 105 flows backward when the roller holding member 103 is reversed. In the tube pump 100, as shown in FIG.
While the rotating shaft 109 and the cam 111 are in direct contact with each other and the roller holding member 103 is normally rotated, the rotating shaft 109 receives an outward pressing force from the cam 111 and, at the same time, via the roller 104. The tube 105 receives an inward reaction force. Therefore, when the roller holding member 103 is rotated in the reverse direction as shown in FIG. 18, frictional resistance is generated between the rotary shaft 109 and the cam 111, and the rotary shaft 109 rotates together with the rotary drive body 107 via the cam 111. There was an occasion. In this case, the roller 104 moves integrally with the rotating shaft 109, so that the drinking water in the tube 105 is Y
It was pushed back in the direction and was flowing backwards. Usually, the tube 105 is crushed by the roller 104 so that food and drink from a packaging container (not shown) to the tube pump are not exposed to the atmosphere. It may be pushed back into the packaging container (not shown) through the tube 105 and contaminate the whole food and drink in the packaging container, which is not preferable in terms of hygiene.

Therefore, an object of the present invention is to provide a tube pump capable of preventing backflow of liquid.

[0012]

Therefore, in order to solve the above-mentioned problems, a tube pump according to a first aspect of the present invention is a tube pump in which a roller plate having a plurality of rollers arranged on the circumference thereof is rotated in a normal direction. In a tube pump that presses to deliver liquid in a tube, while holding a rotating plate that is rotatably held with respect to a roller plate and that is connected to drive means, and a spindle that is connected to the rotating plate,
It has a pair of link plates that rotatably hold the roller at a position apart from the support shaft, forms a guide for moving the roller in the direction perpendicular to the tube on the roller plate, and when the roller plate reverses, A pair of link plates separates the roller from the tube.

The invention described in claim 2 is the same as claim 1
The invention described in (1) is characterized in that it has an urging means for urging the roller in a direction of separating it from the support shaft.

The invention described in claim 3 is the same as claim 1
Alternatively, the invention according to claim 2 is characterized in that the roller plate is formed with a guide groove through which the support shaft is movably inserted.

The invention described in claim 4 is the same as that of claim 1.
The invention according to any one of claims 3 to 3, further comprising a brake member that applies a braking force to the roller plate,

Further, the invention according to claim 5 is a tube pump for pressing a tube to deliver the liquid in the tube by positively rotating a roller plate in which a plurality of rollers are arranged on the circumference, The rotary plate is rotatably held with respect to the roller plate and has a rotary plate connected to the drive means, and a biasing means connected to the rotary plate and the roller for biasing the roller in the centrifugal direction of the roller plate. The urging force of the urging means is weakened when the plate is reversed.

The invention according to claim 6 is the same as claim 5
In the invention described in (1), the urging means is a U-shaped spring,
A guide groove is formed in a circumferential direction around a position eccentric from the center of the rotary plate with respect to the rotary plate, one end of the U-shaped spring is connected to the roller, and the other end of the U-shaped spring is inserted into the guide groove. do it,
When it is connected to the roller plate and the rotating plate reverses, U
It is characterized in that one end of the character spring moves in the guide groove so that the opening is widened.

Further, the invention according to claim 7 is a tube pump for pressing a tube to deliver the liquid in the tube by positively rotating a roller plate in which a plurality of rollers are arranged on the circumference, The roller plate is characterized in that a convex portion for regulating the tube width is formed between the rollers.

The invention described in claim 8 is the invention according to claim 7.
In the invention described in (3), the protrusion is formed on the roller.

Further, according to a ninth aspect of the present invention, a tube pump that presses the tube to deliver the liquid in the tube by rotating the roller plate, in which a plurality of rollers are arranged on the circumference, in a normal direction, is used. In a food and drink supply device for weighing an object and supplying it to a receiver, while holding a rotating plate which is rotatably held with respect to a roller plate and which is connected to a driving means and a support shaft which is connected to the rotating plate, It has a pair of link plates that rotatably hold the roller at a position apart from the support shaft, forms a guide for moving the roller in the direction perpendicular to the tube on the roller plate, and when the roller plate reverses, The pair of link plates has a tube pump for separating the roller from the tube.

According to a tenth aspect of the present invention, in the invention according to the ninth aspect, there is provided an urging means for urging the roller in a direction of separating from the support shaft.

The invention described in claim 11 is characterized in that, in the invention described in claim 9 or 10, a guide groove is formed in the roller plate so that the support shaft is movably inserted therein. To do.

According to a twelfth aspect of the present invention, in the invention according to the ninth to eleventh aspects, there is provided a brake member for applying a braking force to the roller plate.

Further, the invention described in claim 13 is a tube pump for pressing a tube to deliver the liquid in the tube by rotating the roller plate, in which a plurality of rollers are arranged on the circumference, in a normal direction. In a food and drink supply device for weighing an object and supplying it to a receiver, a rotary plate that is rotatably held with respect to a roller plate and is connected to a driving means, and is connected to the rotary plate and a roller, and the roller is a roller plate. Urging means for urging in the centrifugal direction, and when the rotating plate is reversed, the urging force of the urging means is weakened.

According to a fourteenth aspect of the present invention, in the invention according to the thirteenth aspect, the urging means is a U-shaped spring, and the position is eccentric from the center of the rotary plate with respect to the rotary plate. A guide groove is formed in the circumferential direction, and one end of the U-shaped spring is connected to the roller, the other end of the U-shaped spring is inserted into the guide groove, and is connected to the roller plate. , One end of the U-shaped spring moves in the guide groove to widen the opening.

Further, the invention according to claim 15 is a tube pump that presses a tube to deliver the liquid in the tube by rotating the roller plate, in which a plurality of rollers are arranged on the circumference, in the normal direction. In the food / beverage supply device which measures a substance and supplies it to a receiver, a convex portion for regulating a tube width is formed between the rollers in the roller plate.

The invention described in claim 16 is characterized in that, in the invention described in claim 15, it is formed by providing the convex portion on a roller.

The invention described in claim 7 or 8 may be combined with the invention described in any one of claims 1 to 6 as appropriate. Further, claim 15 or claim 16
The invention described in (1) may be combined with the invention described in (9) to (14) as appropriate.

That is, when the rotary plate is rotated in the reverse direction, the pair of link plates convert the rotational force of the rotary plate into a linear motion and transmit it to the roller, and the roller moves along the guide in the direction perpendicular to the tube. And separate it from the tube,
The roller does not move in the reverse direction in a state where the tube is crushed by being directly transmitted with the rotational force of the rotary plate, and it is possible to prevent the liquid such as food and drink in the tube from flowing backward.

Further, the roller is urged by the urging means in the centrifugal direction and pressed against the tube, and when the rotating plate reverses, the pair of link plates opposes the urging force and separates the roller from the tube. Therefore, the tube can be reliably crushed and continued until the rotating plate reverses.

Further, at the start of the normal rotation of the rotary plate, the support shaft moves in the guide groove and the rotary plate and the roller plate do not rotate integrally, but when the support shaft is locked in the guide groove. Since the rotating plate and the roller plate start to rotate in the forward direction, the roller completely crushes the tube before pumping the liquid such as food and drink, and the liquid such as food and drink always flows at an accurate flow rate. It can be sent by pressure. Further, when the rotation plate starts rotating in the reverse direction, the support shaft moves in the guide groove and the rotation plate and the roller plate do not rotate integrally, but when the support shaft is locked in the guide groove, Since the roller plate and the roller plate start to rotate in reverse, the roller does not move in the reverse direction while pressing the tube, and the reverse flow of the stock solution can be more reliably prevented.

When the rotation direction of the rotary plate is changed from reverse to normal, the roller abuts the tube to generate frictional resistance, and the rotary force of the rotary plate is applied to the support shaft, the pair of link plates, and the like. It is transmitted through the tube and tries to rotate with the rotating plate before the tube is completely crushed.However, the roller plate generates frictional resistance between itself and the brake member, and that frictional resistance becomes a braking force. Since the roller is prevented from rotating, the roller always starts to squeeze the tube after completely crushing the tube, so that the flow rate for pumping the stock solution can be stabilized.

When the rotating plate and the roller are connected by the urging means, if only the rotating plate is reversed, the urging force of the urging means is weakened when the rotating plate is reversed, and the rotating plate is normally rotated. On the contrary, since the urging force of the urging means becomes strong, the pressing force of the roller can be adjusted with a simple structure.

Further, a guide groove is formed in the rotary plate, and the U-shaped spring is slidably engaged with the guide groove of the rotary plate.
When connected to the roller, when the rotary plate reverses, one end of the U-shaped spring slides in the guide groove, but the guide groove is formed along the circumference centered on a position eccentric from the center of the rotary plate. Therefore, when the rotating plate reverses, the opening of the U-shaped spring expands, the fulcrum moves to a position where the load is small, and the urging force decreases, so the pressing force of the roller can be adjusted with a simple structure. can do.

Further, by forming a convex portion for regulating the tube width on the roller plate between the rollers, even if the tube is deformed at the time of stop, it is formed on the roller plate when the roller plate is normally rotated during use. The deformed tube is restored to its original shape by the convex portion. Therefore, the change in the supply flow rate due to the deformation of the tube can be reduced. Further, in this case, since the roller plate is not reversed, liquid such as food and drink in the tube does not flow backward.

By forming the convex portion on the roller, the frictional force generated between the convex portion and the tube can be reduced. Thereby, the drive source for rotating the roller plate can be downsized.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) Next, a first embodiment of a food and drink supply device according to the present invention will be described below with reference to the drawings. FIG. 7 is a schematic configuration diagram of the food and drink supply device 1. The food and drink supply device 1 is roughly divided into a container storage 3 arranged at an upper portion, and food and drink in a packaging container 4 stored in the container storage 3 (concentrated stock solution such as orange juice; It is referred to as a "stock solution".) A food and drink injecting section 5 for injecting a predetermined amount, and a water supply section 6 for receiving the injected stock solution. Packaging container 4
Are sterilized and packed undiluted solutions, and there are various forms such as plastic containers, vinyl containers, and paper containers. By the way, the illustrated food and drink supply device 1 has one set of the packaging container 4 and the food and drink injecting section 5, but may of course have two or more sets.

The food / drink injecting section 5 has a tube pump in which the tube 7 from the packaging container 4 is assembled and which injects a predetermined amount of the stock solution in the packaging container 4. A dilution water nozzle 8 for injecting a fixed amount of dilution water such as water or soda water is provided in the vicinity of the inlet of the tube 7, and a tray 9 of the water supply unit 6 is provided.
The stock solution and the dilution water are supplied to the cup 10 placed above.

FIG. 1 is a side view showing the internal structure of the food and drink injecting section 5, showing a tube pressed state. Figure 2
Is a side view showing the internal structure of the food and drink injecting section 5,
The tube is open. As shown in FIGS. 1 and 2, the food / drink injection unit 5 rotatably holds a tube guide member 11 for positioning the tube 7 and three rollers 20 arranged at equal intervals in the circumferential direction. A roller holding member 12 that operates and a pinch valve 13 that opens or closes the inlet of the tube 7 are provided in the body 14, and a cover 15 is attached to the body 14 so as to cover them. The tube pump is mainly composed of the tube 7, the roller holding member 12, the body 14, the cover 15, and the like.

FIG. 3 is a front view showing the internal structure of the food and drink injecting section 5. The tube guide member 11, the roller holding member 12, and the pinch valve 13 are
The tubes 7 are arranged in one row so that the tubes 7 can be attached from the roller holding member 12 to the pinch valve 13 only by pulling down the tube 7 held by the No. 1. The roller holding member 12 is rotatably held in a recess 16 formed in the body 14. That is, a drive shaft 17 connected to a motor (not shown) provided in the body 14 via a gear or the like is horizontally extended in the recess 16, and the roller holding member 12 is inserted through the drive shaft 17. It is arranged in the recess 16 in this state. A brake member 18 fixed to the inner wall of the recess 16 contacts the roller holding member 12 to generate a braking force for the rotation of the roller holding member 12. The brake member 18 is preferably made of rubber, plastic, or the like that is unlikely to generate dust or the like even when rubbed against the roller holding member 12.

FIG. 4 is a plan view of the roller holding member 12 in the tube pressing state. FIG. 5 is a sectional view taken along line HH of FIG. The roller holding member 12 includes a pair of roller plates 22 on both ends of a pump shaft 21 which is loosely fitted to the drive shaft 17.
22 is fixed, and rotatably holds rotating plates 23, 23 connected to the drive shaft 17. Rotating plate 2
3, 23 are connected to the roller plates 22, 22 by three support shafts 24 attached at equal intervals in the circumferential direction, and each support shaft 24 is equidistantly provided in the circumferential direction on the pair of roller plates 22, 22. Are inserted into the guide grooves 25 ... On the outside of the guide groove 25, a long hole (corresponding to “guide” in claims) 27 is formed long in the radial direction of the roller plate 22 from a position corresponding to one end of the guide groove 25. Shaft 26 that rotatably supports
Are inserted respectively. The rotary shaft 26 is connected to the support shaft 28 via a link member 28, and the rotary plates 23, 2
According to the rotation of No. 3, the linear reciprocating motion is made in the elongated hole 27.

FIG. 6 is an external perspective view of the link member 28. The link member 28 is formed by connecting a pair of link plates 29, 29 with a connecting portion 30 to form a U-shape so that the pair of link plates 29, 29 can be operated synchronously. The link member 28 has the support shaft 24 and the link plates 29, 2
The rotary shaft 26 of the roller 20 is held by the pair of link plates 29, 29 so as to dispose the roller 20 in the opening of the link member 28 while penetrating through 9 and the connecting portion 30. The pair of link plates 29, 29 have support pins 31, which slidably support the rotary shaft 26 of the roller 20,
31 is provided, and the rotation shaft 2 of the roller 20 is provided by the urging springs 32, 32 attached to the support pins 31, 31.
6 is urged in the direction away from the support shaft 24.

Here, as shown in FIGS. 4 and 5, the roller holding member 12 is provided with an alignment mechanism for aligning the tube 7 with the roller 20 between the link members 28. Between the pair of roller plates 22 and 22, the tube guide blocks 33 and 33 are attached to the tube 7
The guide pins 34, 34 are arranged so as to face each other so as to sandwich
The roller guides 22 and 22 are inserted so as to penetrate the tube guide blocks 33 and 33. A tube guide holder 35, which is made by molding plastic into a cylindrical hollow shape, is attached to the tip ends of the guide pins 34, 34, and the tube 7 is placed along the inner wall of the cover 15 so that the roller 2
It is designed to be aligned with 0.

Next, the food / beverage supply device 1 having the above structure
The action of will be described. As shown in FIG. 1, the food / beverage supply apparatus 1 crushes the tube 7 with the roller 20 to provide two closed points, and waits in a state where the closed points are filled with the stock solution. Then, for example, when the user selects orange juice from the food / drink supply device 1, as shown in FIG. 7, the cup 10 is placed on the water supply tray 9, and the drink injecting unit 5 transfers the orange juice to the cup 10. A predetermined amount of the stock solution is discharged, and a predetermined amount of water is injected from the dilution water nozzle 8 into the cup 10.

When the drink injecting section 5 receives an orange juice supply command, a motor (not shown) rotates the drive shaft 17 in a predetermined direction, causing the rotary plate 23 to move in the direction of the arrow in FIG. In order to rotate the roller holding member 1 in the direction of K1), its rotational force is transmitted to the support shaft 24, the guide grooves 25, 25, and the roller plates 22, 22.
2 rotates in the normal direction K1 of FIG. Roller holding member 1
When 2 rotates 120 degrees, only the amount of the stock solution filled between the two closed positions of the tube 7 is squeezed by the roller 20 and pumped downward. At the same time, the undiluted solution flows from the packaging container 4 into the tube 7, and the next roller 20
The tube 7 is then crushed and closed again. Therefore, the flow rate of the undiluted solution pumped in one rotation is only that filled between the two closed portions, and if the motor (not shown) rotates the drive shaft 17 by a predetermined amount, the cup 10 will reach a predetermined amount. Will be injected.

Then, the pinch valve 13 opens the inlet of the tube 7 when there is an orange juice supply command, but at other times, the inlet of the tube 7 is crushed and hermetically sealed so that the outside air is not exposed. It is designed to prevent it. This is to maintain the cleanliness of the tube 7, because if the stock solution in the tube 7 comes into contact with the outside air, there is a concern that mold will be generated, microorganisms will propagate, and the stock solution will corrode.

On the other hand, for example, when the food and drink supply device 1 is stopped for a long time, the rotating plate 23 is provided to prevent the tube 7 from being plastically deformed by the pressing force of the roller 20.
In the direction of the arrow in FIG. 2 (hereinafter referred to as “reverse direction”).
K2 is rotated to separate the roller from the tube 7 as shown in FIG. When a motor (not shown) rotates the drive shaft 17 in a direction opposite to the predetermined direction, the rotary plates 23, 23 rotate in the reverse direction, and the support shaft 24 moves along the guide groove 25 in the reverse direction K2 in FIG. The link member 28 converts the rotary motion of the support shaft 24 into a linear motion and transmits the linear motion to the rotary shaft 26.
6 is moved inward along the slot 27 to separate the roller 20 from the tube 7. When the support shaft 24 is locked at the end of the guide groove 25, the rotational force of the rotary plate 23 is transmitted from the support shaft 24 to the roller plate 22, and the roller holding member 12 rotates in the reverse rotation direction K2 in FIG. To do. Also in this case, the pinch valve 13 closes the tube 7 so as to keep the tube 7 clean.

Further, when the food / beverage supply device 1 is put into the standby state again, a motor (not shown) rotates the drive shaft 17 in a predetermined direction to rotate the rotary plate 23 in the forward rotation direction K1 in FIG.
The support shaft 24 moves along the guide groove 25 of the roller plate 22 in the forward rotation direction K1 of FIG. The link member 28 converts the rotary motion of the support shaft 24 into a linear motion and transmits the linear motion to the rotary shaft 26, moves the rotary shaft 26 outward along the elongated hole 27, and presses the roller 20 against the tube 7. The tube 7 is filled with the undiluted solution sent from the packaging container 4, so that a predetermined amount of undiluted solution is filled between the closed portions closed by the rollers 20.

Therefore, the food and drink supply device 1 according to the present embodiment
According to this, when the rotating plates 23, 23 are reversed, the rotating plate 2
Only 3 and 23 rotate, and the link member 28 converts the rotary motion of the support shaft 24 into a linear motion to move the rotary shaft 26 inward along the guide 27 and separate the roller 20 from the tube 7. The roller 20 does not move in the reverse direction K2 of FIG. 2 in a state in which the rotating force of the rotating plates 23, 23 is directly transmitted and the tube 7 is crushed, and the stock solution in the tube 7 flows backward into the packaging container 4. It can be prevented. Therefore, the stock solution in the packaging container 4 is not contaminated and the cleanliness can be maintained.

Further, according to the food and drink supply device 1 of the present embodiment, the roller 20 includes the support shaft 2 via the link member 28.
In addition to being pushed outward by 4, the urging spring 32 urges the rotating plates 23, 23 in a direction in which the urging spring 32 separates from the support shaft 30, that is, a direction in which the urging spring 32 vertically presses the tube 7. The tube 7 can be surely kept crushed by the roller 20 until it is reversed.

Further, according to the food and drink supply device 1 of the present embodiment, when the rotating plates 23, 23 start to rotate in the normal direction, the support shaft 24 moves in the guide grooves 25, 25, and the rotating plates 23, 23 23 and the roller plates 22 and 22 do not rotate integrally, but when the support shaft 24 is locked in the guide grooves 25 and 25, the roller plates 22 and 22 and the rotating plates 23 and 23 integrally rotate in the forward direction. Therefore, the roller 20 completely crushes the tube 7 and then starts squeezing the tube 7, so that the stock solution can be constantly fed at an accurate flow rate. Further, when the rotation plate 23 starts to rotate in the reverse direction, the support shaft 24 moves in the guide grooves 25 and 25, and the roller plate 22 and the rotation plates 23 and 23 do not rotate integrally, but the support shaft 24 does not rotate. When locked to 25, 25, the roller plate 22 and the rotary plates 23, 23
The rollers 20 do not move in the reverse direction K2 in FIG. 2 while pressing the tube 7, and the reverse flow of the stock solution can be prevented more reliably. Therefore, the roller 20 can be moved along the guide only by forming the simple arc-shaped guide groove 25 without providing a complicated cam mechanism unlike the tube pump 100 of the related art.

Furthermore, the food and drink supply device 1 of the present embodiment
According to the above, when the rotary plate 23 is rotated in the forward direction to move the tube pump from the tube open state shown in FIG. 2 to the tube pressing state shown in FIG. A frictional resistance is generated between them, and the rotational force of the rotary plate 23 is transferred from the support shaft 24 to the link member 28 and the rotary shaft 2.
Although it is transmitted via 6 and tries to rotate with the rotary plate 23 before the tube 7 is completely crushed, the roller plate 22 of the roller holding member 12 generates frictional resistance between itself and the brake member 18, and Since the frictional resistance serves as a braking force to prevent the roller plate 22 from rotating, the roller 20
Can always squeeze the tube 7 and then start squeezing the tube 7 to stabilize the flow rate for pumping the stock solution.

(Second Embodiment) Next, a second embodiment of the food and drink supply device of the present invention will be described. Figure 8
[Fig. 6] is a plan view of a roller holding member 40 used in the food and drink feeding device of the second embodiment, showing a tube pressed state. FIG. 9 is a plan view of the roller holding member 40 used in the food and drink feeding device of the second embodiment, showing a tube open state. The food and drink supply device of the second embodiment differs from the food and drink supply device 1 of the first embodiment in the structure of the roller holding member 40 attached to the food and drink injecting unit 5. Therefore, here, the roller holding member 40 different from the first embodiment will be described in detail, and the same components as those of the first embodiment will be denoted by the same reference numerals in the description and drawings.

In the roller holding member 40, as shown in FIGS. 8 and 9, the rotating plate 43 is rotatably held by the roller plate 42 which holds the roller 20 rotatably, and the drive shaft 17 is held by the rotating plate 43. It is designed to be connected. On the roller plate 42, a rotary shaft 44 that rotatably supports the roller 20 is held movably in the centrifugal direction,
A guide groove 45 is formed in the circumferential direction on the rotary plate 43, and a U-shaped spring 46 is arranged so as to bias the rotary shaft 44 in the centrifugal direction. The U-shaped spring 46 has one end connected to the rotary shaft 44, and the other end inserted into the guide groove 45 and connected to the roller plate 42. Here, U-shaped spring 46
Has an urging force in the direction of opening the opening.

FIG. 10 is an enlarged view of part A of FIG. In the guide groove 45, an insertion portion 45a for inserting the end portion of the U-shaped spring 46 is formed in the radial direction of the rotary plate 43, and the insertion portion 4 is formed.
An arcuate sliding portion 45b is formed so as to be connected to 5a. The sliding portion 45b is formed in a circumferential direction centered on a point M2 located at a position eccentric from the center M1 of the rotary plate 43. The point M2 is eccentric in this manner because the distance between the end of the sliding portion 45b on the side of the insertion portion 45a and the end on the side opposite to the insertion portion 45a to the center M1 of the rotation plate 43 is changed. In order to move the fulcrum of the U-shaped spring 46 to a position where the load becomes large when 43 rotates forward, and to move the fulcrum of the U-shaped spring 46 to a position where the load becomes small when the rotary plate 43 reverses. Is.

More specifically, the point M2 is the insertion portion 45a.
Is provided on the axis C rotated by D degrees in the reverse direction of the roller holding member 40 (arrow direction K4 in the drawing of FIG. 9) about the axis B of the center M1 as a base point, and along the circumference around the point M2. The sliding portion 45b is formed. The sliding portion 45b includes the axis B of the insertion portion 45a and the forward rotation direction of the roller holding member 40 with the axis B as the center point of the center M1 (arrow direction K in FIG.
It is formed between the axis E rotated by F degrees in 3).
In this embodiment, D = 65 and F = 60.

The food and drink supply device of the second embodiment is
It works as follows. As shown in FIG. 8, when the rotary plate 43 is normally rotated in the direction of arrow K3 in the figure, one end of the U-shaped spring 46 is locked to the end of the guide groove 45 on the side of the insertion portion 45a, and the rotational force thereof is changed. Is transmitted from the guide groove 45 to the U-shaped spring 46 and the roller holding member 42, and the roller holding member 42 rotates in the forward direction integrally with the rotary plate 43. Here, the sliding portion 45b
Has a longer distance from the end on the side of the insertion portion 45a to the center M1 of the rotating plate 43 than the end on the side opposite to the insertion portion 45a, the U-shaped spring 46 transmits the force in the direction of compressing the opening. , The fulcrum moves to the rotary shaft 44 side, and the biasing force becomes stronger.
Therefore, the roller 20 presses the tube 7 with a predetermined pressing force to surely crush the tube 7, and when the roller 20 rotates in the forward direction integrally with the roller holding member 40, the stock solution filled between the closed portions of the tube 7 is laddered. And pump down.

On the other hand, the rotary plate 43 moves in the direction of arrow K in FIG.
When it is reversed to 4, the end of the U-shaped spring 46 moves in the sliding portion 45b from the end on the insertion portion 45a side to the end on the non-insertion portion 45a side and is locked to the end on the non-insertion portion 45a side. The rotational force is transmitted from the guide groove 45 of the rotating plate 43 to the U-shaped spring 46 and the roller holding member 42, and the roller holding member 42 is integrally rotated with the rotating plate 43 in the reverse direction. Here, the anti-insertion portion 45
Since the distance from the end on the side of the insertion portion 45a to the rotary plate M1 is shorter at the a-side end, the U-shaped spring 46 has a fulcrum whose opening extends from the dimension W1 shown in FIG. 8 to the dimension W2 shown in FIG. Moves toward the side opposite to the rotation shaft 44, and the biasing force weakens. Therefore, the roller 20 is pushed back toward the center of the roller holding member 42 by the restoring force of the tube 7, and does not crush the tube 7 when it reverses integrally with the roller holding member 40.

Therefore, according to the food and drink supplying apparatus of the second embodiment, the U-shaped spring 46 is changed depending on the rotating direction of the rotating plate 43.
Since the position of the fulcrum is changed to adjust the magnitude of the urging force, the pressing force of the tube 7 can be adjusted with a simpler structure than the first embodiment.

(Third Embodiment) Next, a third embodiment of the food and drink supply device of the present invention will be described. Figure 11
[Fig. 6] is a plan view of a roller holding member 50 used in the food and drink supply device of the third embodiment. FIG. 12 is a front view of the roller holding member 50. FIG. 13 shows A- shown in FIG.
It is sectional drawing in the A line. The food and drink supply device of the third embodiment differs from the food and drink supply device 1 of the first embodiment in the structure of the roller holding member 50 attached to the food and drink injecting section 5. Therefore, here, the roller holding member 50 different from the first embodiment will be described in detail, and the first embodiment will be described.
The same reference numerals are used in the description and the drawings for the same configurations as the embodiments.

The roller holding member 50 is shown in FIG. 11 and FIG.
As shown in FIG. 2, the drive shaft 1 is inserted into a shaft hole 51 formed at the center of a roller plate 52 that rotatably holds the roller 20.
7 are connected. Roller plate 52
A rotary shaft 54 that rotatably supports the roller 20 is movably held in the radial direction, and a U-shaped spring 56 is attached to the rotary shaft 5.
4 is arranged so as to urge the outer side 4 (in the radial direction).
One end of the U-shaped spring 56 is connected to the rotary shaft 54,
The other end is locked in the locking groove 55. Here, the U-shaped spring 56 has a biasing force in the direction of opening the opening.

Further, the roller plate 52 has a structure shown in FIG.
As shown in, the convex portion 53 is formed. This convex part 5
3 is for controlling the width of the tube 7. The convex portions 53 are respectively formed between the three rollers 20 rotatably held by the roller plate 52. That is, the convex portions 53 are formed on the roller plate 52 at three positions. By thus forming the convex portion 53 on the roller plate 52, the tube 7 crushed and deformed by the roller 20 can be restored to the original shape.

The food and drink supply device of the third embodiment is
It works as follows. When the drive shaft 17 rotates (forward rotation), its rotational force is transmitted to the roller plate 52,
The roller holding member 50 rotates (forward rotation). Here, the roller 20 is biased outward (in the direction in which the U-shaped spring opens) by the U-shaped spring 56. Therefore, the roller 20
The tube 7 is pressed down with a predetermined pressing force to squeeze the tube securely, and when the roller 7 is rotated in the forward direction integrally with the roller holding member 50, the stock solution filled between the closed portions of the tube 7 is squeezed and pumped downward. To do.

When the drive shaft 17 stops rotating (forward rotation), the roller holding member 50 stops rotating (forward rotation). In this state, the tube 7 is crushed by the roller 20. Therefore, at the next use, the tube 7
Due to the deformation, the flow rate of the undiluted solution filled between the closed positions crushed by the roller 20 may vary, and the supply flow rate may change.

However, in the food and drink supplying apparatus according to the present embodiment, when the roller holding member 50 is rotated during the next use, the portion of the tube 7 that was crushed by the roller 20 extends from the convex portion 53 to the tube 7. Receives the force to return to the original state. Therefore, when the convex portion 53 passes through the deformed portion of the tube 7, the deformation of the tube 7 is almost eliminated.

Therefore, according to the food and drink supply device of the third embodiment, it is possible to reduce the change in the supply flow rate due to the deformation of the tube 7 without rotating the roller plate 52 in the reverse direction. Moreover, since the roller plate 52 is not reversed, the stock solution in the tube 7 does not flow backward.

(Fourth Embodiment) Next, a fourth embodiment of the food and drink supply device of the present invention will be described. 14
[Fig. 8] is a plan view of a roller holding member 60 used in the food and drink supplying device of the fourth embodiment. FIG. 15 is a front view of the roller holding member 60. FIG. 16 shows A- shown in FIG.
It is sectional drawing in the A line. The food and drink supply device of the fourth embodiment differs from the food and drink supply device 1 of the first embodiment in the structure of a roller holding member 60 attached to the food and drink injecting section 5. Therefore, here, the roller holding member 60 different from the first embodiment will be described in detail, and the first embodiment will be described.
The same reference numerals are used in the description and the drawings for the same configurations as the embodiments.

The roller holding member 60 is shown in FIG. 14 and FIG.
As shown in FIG. 5, the drive shaft 1 is inserted into the shaft hole 61 formed in the center of the roller plate 62 that holds the roller 20 so as to be rotatable.
7 are connected. Roller plate 62
A rotary shaft 64 that rotatably supports the roller 20 is movably held in the radial direction, and a U-shaped spring 66 is attached to the rotary shaft 6.
4 is arranged so as to urge the outer side 4 (in the radial direction). The U-shaped spring 66 has one end connected to the rotary shaft 64 and the other end locked in the locking groove 65. Here, the U-shaped spring 66 has a biasing force in the direction of opening the opening.

The roller plate 62 is shown in FIG.
Also, as shown in FIG. 16, a roller 63 is provided. The roller 63 is for controlling the width of the tube 7. As shown in FIG. 15, one half of the roller 63 is built in the roller plate 63, and the other half projects from the surface of the roller plate 63 to form a convex portion. The roller 63 is rotatably held by the roller plate 63. The rollers 63 are provided between the three rollers 20 as shown in FIG. That is, three rollers 63 are provided on the roller holding member 60. Thus, by newly providing the roller 63 on the roller holding member 60, the tube 7 crushed and deformed by the roller 20 can be restored to the original shape.

The food and drink supply device of the fourth embodiment is
It works as follows. When the drive shaft 17 rotates (forward rotation), the rotational force is transmitted to the roller plate 62,
The roller holding member 60 rotates (forward rotation). Here, the roller 20 is biased outward (in the direction in which the U-shaped spring opens) by the U-shaped spring 66. Therefore, the roller 20
When the roller holding member 60 rotates (forward rotation) by pressing the tube 7 with a predetermined pressing force and crushing it surely,
The stock solution filled between the closed portions of the tube 7 is squeezed and pumped downward.

When the drive shaft 17 stops rotating (normal rotation), the roller holding member 60 stops rotating (normal rotation). In this state, the tube 7 is crushed by the roller 20. Therefore, at the next use, the tube 7
Due to the deformation, the flow rate of the undiluted solution filled between the closed positions crushed by the roller 20 may vary, and the supply flow rate may change.

However, in the beverage supply apparatus according to the present embodiment, when the roller holding member 60 rotates during the next use, the portion of the tube 7 that was crushed by the roller 20 is moved from the roller 63 to the tube 7. Receives the force to restore the original condition. Therefore, when the roller 63 passes through the deformed portion of the tube 7, the deformation of the tube 7 is almost eliminated. Here, as compared with the case where the convex portion 53 is formed on the roller plate 52 as in the third embodiment, the case where the roller 63 is provided on the roller plate 62 as in the present embodiment is different from the tube 7. Since the friction is small, the roller holding member 60 can be rotated with a small torque.

Therefore, according to the food and drink supplying apparatus of the fourth embodiment, it is possible to reduce the change in the supply flow rate due to the deformation of the tube 7 without rotating the roller plate 62 in the reverse direction. Further, since the roller plate 62 is not reversed, the stock solution in the tube 7 does not flow backward. Further, since the friction with the tube 7 can be reduced, the drive source for rotating the roller holding member 60 can be downsized.

Although one embodiment of the food and drink supply device according to the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the present invention.

(1) For example, in the above embodiment, the tube pump is built in the food and drink supply device, but the present invention is not limited to this, and it is used for a device such as a flow meter that supplies a liquid at an accurate flow rate. May be.

(2) For example, in the second embodiment, the U-shaped spring 46 is used as the urging means for urging the rotating shaft 44 of the roller 20. On the other hand, the roller plate may be provided with a protrusion that is inserted into the guide groove of the rotary plate, and the protrusion and the rotary shaft of the roller may be connected by a spring so that the biasing force of the spring is weakened when the rotary plate is reversed. .

(3) For example, the food and drink supply device according to the third or fourth embodiment and the food and drink supply device according to the first or second embodiment may be arbitrarily combined.

[0078]

As described above, according to the tube pump of the present invention, by positively rotating the roller plate in which a plurality of rollers are arranged on the circumference, the tube pump is pressed to deliver the liquid in the tube. At a roller plate, which is rotatably held with respect to the roller plate, holds a rotary plate connected to the drive means, and a spindle connected to the rotary plate, and rotatably holds the roller at a position apart from the spindle. A pair of link plates and a guide for moving the roller in a direction perpendicular to the tube are formed on the roller plate, and when the roller plate is reversed, the pair of link plates separates the roller from the tube. Does not move in the reverse direction while the tube is crushed by the rotational force of the rotating plate being directly transmitted, and the liquid such as food and drink in the tube flows backward. It is possible to prevent the cause.

According to the tube pump of the present invention,
In a tube pump that presses a tube to deliver the liquid in the tube by rotating a roller plate in which a plurality of rollers are arranged on the circumference in a normal direction, the tube pump is rotatably held with respect to the roller plate, A rotating plate connected to the rotating plate and a roller, and a biasing unit that biases the roller in the centrifugal direction of the roller plate,
When the rotating plate is reversed, the biasing force of the biasing means is weakened, so that the pressing force of the roller can be adjusted with a simple structure.

According to the tube pump of the present invention,
In a tube pump that presses a tube to deliver the liquid in the tube by rotating a roller plate, in which a plurality of rollers are arranged on the circumference, in a forward direction, the convex portion for regulating the tube width on the roller plate is the roller. Since it is formed between them, even if the tube is deformed at the time of stop, when the roller plate is normally rotated during use, the deformed tube is returned to the original shape by the convex portion formed on the roller plate. Therefore, the change in the supply flow rate due to the deformation of the tube can be reduced. Further, in this case, since the roller plate is not reversed, liquid such as food and drink in the tube does not flow backward.

According to the tube pump of the present invention,
Since the protrusion is formed on the roller, the frictional force generated between the protrusion and the tube can be reduced. Thereby, the drive source for rotating the roller plate can be downsized.

According to the food and drink supply device of the present invention,
A food and drink supply device that measures the food and drink with a tube pump that presses the tube to deliver the liquid in the tube by rotating a roller plate, in which a plurality of rollers are arranged on the circumference, in a forward direction At a roller plate, which is rotatably held with respect to the roller plate, holds a rotary plate connected to the drive means, and a spindle connected to the rotary plate, and rotatably holds the roller at a position apart from the spindle. A tube pump that has a pair of link plates, forms a guide on the roller plate that moves the roller in a direction perpendicular to the tube, and when the roller plate reverses, the pair of link plates separates the roller from the tube. Since it has, the roller does not move in the reverse direction in the state in which the rotational force of the rotating plate is directly transmitted and the tube is crushed,
It is possible to prevent backflow of liquid such as food and drink in the tube.

According to the food and drink supply device of the present invention,
A food and drink supply device that measures the food and drink with a tube pump that presses the tube to deliver the liquid in the tube by rotating a roller plate, in which a plurality of rollers are arranged on the circumference, in a forward direction In the above, there is provided a rotating plate which is rotatably held with respect to the roller plate and which is connected to the driving means, and an urging means which is connected to the rotating plate and the roller and urges the roller in the centrifugal direction of the roller plate. Since the urging force of the urging means is weakened when the rotating plate is reversed, the pressing force of the roller can be adjusted with a simple structure.

According to the food and drink supply device of the present invention,
In a food and drink supply device that presses the tube to deliver the liquid in the tube by positively rotating a roller plate in which a plurality of rollers are arranged on the circumference, a convex portion for regulating the tube width on the roller plate. Since it is formed between the rollers, even if the tube is deformed at the time of stop, if the roller plate is rotated normally during use, the deformed tube will return to its original shape due to the convex portion formed on the roller plate. Be done. Therefore, the change in the supply flow rate due to the deformation of the tube can be reduced. Further, in this case, since the roller plate is not reversed, liquid such as food and drink in the tube does not flow backward.

According to the food and drink supply device of the present invention,
Since the protrusion is formed on the roller, the frictional force generated between the protrusion and the tube can be reduced. Thereby, the drive source for rotating the roller plate can be downsized.

[Brief description of drawings]

FIG. 1 is a side view showing an internal structure of a food / drink injection unit built in a food / beverage supply device in a first embodiment of the present invention, showing a tube pressing state.

FIG. 2 is a side view showing an internal structure of a food / drink injection unit incorporated in the food / drink supply device, showing a tube open state.

FIG. 3 is a front view showing the internal structure of a food / drink injection unit incorporated in the food / beverage feeder.

FIG. 4 is likewise a plan view of the roller in a tube pressing state.

5 is a sectional view taken along line HH of FIG.

FIG. 6 is likewise an external perspective view of a link member.

FIG. 7 is likewise a conceptual diagram of a food and drink supply device.

FIG. 8 is a plan view of the roller holding member according to the second embodiment of the present invention, showing a tube pressing state.

FIG. 9 is likewise a plan view of the roller holding member, showing the tube open state.

FIG. 10 is likewise an enlarged view of part A of FIG.

FIG. 11 is a plan view of a roller holding member according to the third embodiment of the present invention.

FIG. 12 is likewise a front view of a roller holding member.

13 is a sectional view taken along line AA of FIG.

FIG. 14 is a plan view of a roller holding member according to the fourth embodiment of the present invention.

FIG. 15 is likewise a front view of a roller holding member.

16 is a sectional view taken along line AA of FIG.

FIG. 17 is a plan view of a conventional tube pump, showing a tube pressing state.

FIG. 18 is a plan view of a main part of a conventional tube pump, showing a tube open state.

[Explanation of symbols]

1 Food and drink supply device 4 packaging 5 Food and drink injection department 7 tubes 10 cups 14 body 15 cover 17 Drive shaft 18 Brake member 20 Laura 22 Roller plate 23 rotating plate 24 spindles 25 guide groove 26 rotation axis 27 long holes 29 link boards 42 Roller plate 43 rotating plate 44 rotation axis 45 guide groove 46 U-shaped spring 53 convex 63 Roller

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kaname Ando             850, Horinouchi Town, Kasugai City, Aichi Prefecture             Hardy Co., Ltd. Kasugai Office (72) Inventor Osamu Suematsu             850, Horinouchi Town, Kasugai City, Aichi Prefecture             Hardy Co., Ltd. Kasugai Office (72) Inventor Nobuhiro Inaba             850, Horinouchi Town, Kasugai City, Aichi Prefecture             Hardy Co., Ltd. Kasugai Office (72) Inventor Bunichiro Kameyama             2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture             Sanyo Electric Co., Ltd. (72) Inventor Nobuyuki Endo             1-1 Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa             Within Fuji Electric Co., Ltd.

Claims (16)

[Claims] 1. A tube pump that presses a tube to discharge the liquid in the tube by positively rotating a roller plate on which a plurality of rollers are arranged on the circumference, wherein the roller plate is rotatable with respect to the roller plate. A rotating plate that is held and connected to the driving means; and a pair of link plates that holds the support shaft connected to the rotation plate and that rotatably holds the roller at a position apart from the support shaft. A guide for moving the roller in a direction perpendicular to the tube is formed on the roller plate, and the pair of link plates separates the roller from the tube when the roller plate is reversed. And a tube pump. 2. The tube pump according to claim 1, further comprising an urging unit that urges the roller in a direction in which the roller is separated from the support shaft. 3. The tube pump according to claim 1, wherein the roller plate is formed with a guide groove through which the support shaft is movably inserted. 4. The tube pump according to any one of claims 1 to 3, further comprising a brake member that applies a braking force to the roller plate. 5. A tube pump that presses a tube to discharge the liquid in the tube by rotating a roller plate, in which a plurality of rollers are arranged on the circumference, in a forward direction so that the roller plate is rotatable with respect to the roller plate. A rotating plate that is held and connected to a driving unit; and an urging unit that is connected to the rotating plate and the roller and that urges the roller in the centrifugal direction of the roller plate. The tube pump is characterized in that the urging force of the urging means is weakened at the time of performing. 6. The tube pump according to claim 5, wherein the urging means is a U-shaped spring, and the urging means is arranged in a circumferential direction around a position eccentric from the center of the rotary plate with respect to the rotary plate. A guide groove is formed, one end of the U-shaped spring is connected to the roller, the other end of the U-shaped spring is inserted into the guide groove and connected to the roller plate, and when the rotating plate is reversed. A tube pump, wherein one end of the U-shaped spring is moved in a guide groove so that an opening is widened. 7. A tube pump that presses a tube to discharge the liquid in the tube by rotating a roller plate, in which a plurality of rollers are arranged on the circumference, in a normal direction, wherein the tube width is regulated by the roller plate. A tube pump characterized in that convex portions for forming are formed between the rollers. 8. The tube pump according to claim 7, wherein the convex portion is formed on a roller. 9. A food product is metered and supplied to a receptor by a tube pump that presses the tube to deliver the liquid in the tube by rotating a roller plate having a plurality of rollers arranged on the circumference in a forward direction. In the food and drink supplying device, the rotation plate is rotatably held with respect to the roller plate and holds a rotating plate connected to the driving means, and a support shaft connected to the rotation plate, and a position separated from the support shaft. And a pair of link plates for rotatably holding the roller, a guide for moving the roller in a direction perpendicular to the tube is formed on the roller plate, and when the roller plate is reversed, A pair of link plates has a tube pump which separates the roller from the tube. 10. The food and drink supply device according to claim 9, further comprising an urging means for urging the roller in a direction in which the roller is separated from the support shaft. 11. The food and drink supply device according to claim 9 or 10, wherein a guide groove into which the support shaft is movably inserted is formed in the roller plate. apparatus. 12. The food and drink supply device according to claim 9, further comprising a brake member that applies a braking force to the roller plate. 13. A tube pump that presses the tube to deliver the liquid in the tube by positively rotating a roller plate in which a plurality of rollers are arranged on the circumference of the roller plate to measure the food and drink and supply it to the receptor. In the food / drink supply device, the rotating plate is rotatably held with respect to the roller plate, and is connected to the driving means, and is connected to the rotating plate and the roller, and the roller is arranged in the centrifugal direction of the roller plate. An urging means for urging, wherein when the rotating plate is reversed, the urging force of the urging means is weakened. 14. The food and drink supply device according to claim 13, wherein the urging means is a U-shaped spring, and a circumference around a position eccentric from the center of the rotary plate with respect to the rotary plate. A guide groove is formed in the direction, one end of the U-shaped spring is connected to the roller, the other end of the U-shaped spring is inserted into the guide groove and connected to the roller plate, and the rotating plate is reversed. At one time, one end of the U-shaped spring is moved in the guide groove so that the opening is widened. 15. A tube pump that presses a tube to deliver the liquid in the tube by rotating a roller plate, in which a plurality of rollers are arranged on the circumference, in a forward direction, to measure food and drink and supply the food to a receptor. The food / drink supply device according to claim 1, wherein the roller plate is provided with protrusions for restricting a tube width between the rollers. 16. The food and drink supplying apparatus according to claim 15, wherein the convex portion is provided on a roller to form the food and drink supplying apparatus.