JP2004256171A - Foaming drink dispensing cock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hygienic foaming drink dispensing cock for surely operating a lever member smoothly. <P>SOLUTION: The cock body 31 of this foaming drink dispenser cock has a beer dispense nozzle 43 and a foam dispense nozzle 44 diverted from a liquid passage 38. An annular groove 46 partially communicating with the nozzle 44 is scored on the inside peripheral face of the passage 38 where the passage 45 of the nozzle 44 is communicated. A lever member 32 is connected through an open hole 62 on a slider 55 provided movably in the passage 38. A foam dispensing path 67 communicable with the nozzle 44 and the hole 62 is provided on the slider 55. The path 67 is so structured that only when the lever member 32 is primarily operated for dispensing beer, the hole 62 and the nozzle 44 are positioned to be communicable. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a sparkling beverage dispensing cock for dispensing a sparkling beverage such as beer, and more particularly, to a sparkling beverage dispensing cock capable of selecting and dispensing a sparkling beverage and foam by lever operation.

  A device for discharging a sparkling beverage by lever operation, for example, a beer discharging cock used as a sparkling beverage discharging cock used in a beer server has a nozzle for discharging beer to a mug, and a nozzle for discharging foam to a mug. The valve body is provided with various valve mechanisms for opening and closing the liquid flow path and the foam flow path in the cock main body so that beer and foam can be separately poured out from each nozzle. That is, the slider arranged to slide in close contact with the liquid passage formed inside the cock body is configured to slide in the liquid passage by tilting operation of the lever member connected to the slider. Further, the valve seat provided on one end surface of the slider is always urged by an elastic member disposed on the other end surface side of the slider so as to press against the bubble discharging valve body, and the valve seat is provided on the bubble discharging valve body. The opening of the pore formed and communicated with the beer passage is closed. Then, when the slider is slid toward the other end face against the elasticity of the elastic member by the lever member, the beer flowing out of the opening of the opened fine hole when the valve seat is separated from the bubble discharging valve body. The bubble is generated by colliding with the valve seat, and the bubble flows to the bubble discharging nozzle.

  The above-described beer pouring cock has a long nozzle for discharging foam, so that the amount of foam remaining on the inner surface of the nozzle increases, which causes deterioration in taste. This problem is not solved simply by shortening the foam ejection nozzle, but simply shortening the foam ejection nozzle will cause a turbulent flow of vigorous foam to be poured into the mug. This causes excessive foaming and hinders the production of high quality fine textured foam.

Therefore, an annular groove is engraved on the inner peripheral surface of the cock main body, and the foam generated by the beer flowing out from the opening of the pore colliding with the valve seat flows through the annular groove to the foam discharging nozzle. There is one configured as described above (for example, see Patent Document 1). According to this configuration, since the foam temporarily enters the annular groove and becomes weak, the excess of foam can be suitably prevented when the foam ejection nozzle is shortened.
JP-A-2002-332096

  In the beer pouring cock, a connecting rod of the lever member is inserted into a radially opened recess formed in the slider, and the slider slides left and right in the liquid passage in response to a tilting operation of the lever member. It is configured. In this case, since the slider slides in the liquid passage, the diameter of the slider is set to be smaller than the inner diameter of the liquid passage, so that a small gap exists between the two. Therefore, when the slider repeatedly slides in the liquid passage by the tilting operation of the lever member, bubbles flowing into the annular groove may enter the concave portion of the slider through the gap and accumulate in the concave portion.

  When the foam accumulated in the concave portion is left for a long period of time, particularly in a viscous material such as beer foam, the movement of the connecting rod in the concave portion is inhibited, and the tilting operation of the lever member can be performed smoothly. Invites difficulties that disappear. In addition, there is a possibility that the inside of the concave portion becomes dirty and becomes unsanitary.

  That is, the present invention has been proposed in view of the problems inherent in the sparkling beverage pouring cock described above, and has been proposed to appropriately solve the problem, and ensures smooth operation of the lever member, and is hygienic. It is an object of the present invention to provide a simple sparkling beverage pouring cock.

In order to solve the above problems and achieve the intended purpose, the sparkling beverage pouring cock according to the present invention is:
A sparkling beverage dispensing nozzle and a foam dispensing nozzle branching from a liquid passage in the cock body, a slider that slides in close contact with the liquid passage, and are inclined through a recess formed in the slider. A lever member for sliding the slider in the liquid passage, an annular groove engraved on an inner peripheral surface of the cock main body and communicating with the foam ejection nozzle, and the lever inserted into the liquid passage and A valve mechanism connected to the lever member, the valve mechanism closing the foamed beverage supply port communicable with the liquid passage and the foam supply port communicable with the annular groove before the operation of the lever member; The foamed beverage supply port is opened by closing the foamed beverage supply port by the first operation, and the foamed beverage is discharged from the foamed beverage discharge nozzle through the liquid passage, and the foamed beverage supply port is opened by the second operation of the lever member. Foam while closed In the foaming beverage extraction cock operates to dispense the foam obtained from the foam beverage opens the mouth from the foam dispensing nozzle through said annular groove,
A foam discharge passage which is formed in the slider and which can communicate the concave portion and the foam discharge nozzle;
When the slider slides in the liquid passage by at least the second operation of the lever member, the foam discharge path is closed on the inner peripheral surface of the cock main body, and communicates the concave portion and the foam discharge nozzle. It is characterized in that it is provided at a position where it does not.

In order to solve the above problems and achieve the intended purpose, a sparkling beverage pouring cock according to another invention of the present application is:
A sparkling beverage dispensing nozzle and a foam dispensing nozzle branching from a liquid passage in the cock body, a slider that slides in close contact with the liquid passage, and are inclined through a recess formed in the slider. A lever member for sliding the slider in the liquid passage, an annular groove engraved on an inner peripheral surface of the cock main body and communicating with the foam ejection nozzle, and the lever inserted into the liquid passage and A valve mechanism connected to the lever member, the valve mechanism closing the foamed beverage supply port communicable with the liquid passage and the foam supply port communicable with the annular groove before the operation of the lever member; The foamed beverage supply port is opened while the foamed beverage supply port is closed by the first operation, and the foamed beverage is discharged from the foamed beverage discharge nozzle through the liquid passage, and the foamed beverage supply port is opened by the second operation of the lever member. Foam while closed In the foaming beverage extraction cock operates to dispense the foam obtained from the foam beverage opens the mouth from the foam dispensing nozzle through said annular groove,
A bubble discharge path is formed in the bottom of the concave portion of the slider so that the concave portion and the bubble discharging nozzle can communicate with each other, and a taper that is inclined downward toward the bubble discharge path is provided at the bottom of the concave portion. The lever member is configured to contact the tapered surface.

  According to the sparkling beverage pouring cock according to the present invention, in a configuration in which the foam obtained from the sparkling beverage flows to the foam pouring nozzle through an annular groove formed in the cock body, the slider and the lever member are connected to each other. Bubbles that have entered the coupling recess from the annular groove can be discharged to the foam discharge nozzle from a foam discharge passage formed in the slider. Therefore, the operation of tilting the lever member can always be performed smoothly without leaving the bubbles remaining in the recess for a long period of time. In addition, the inside of the concave portion is less likely to become dirty, and becomes sanitary.

  Furthermore, by forming a tapered surface at the bottom of the concave portion, the bubbles that have entered the concave portion can be more quickly discharged from the foam discharge path and prevented from remaining in the concave portion, and the sanitary condition is maintained. obtain.

  Next, a sparkling beverage pouring cock according to the present invention will be described below with reference to the accompanying drawings, taking a preferred embodiment. In the embodiment, a beer pouring cock used in a beer server will be described as an example of a sparkling beverage pouring cock, but the present invention can be used for a dispenser for pouring a foaming beverage other than beer.

  FIG. 1 is a sectional view of a beer pouring cock according to the first embodiment, FIG. 2 is an enlarged view of a main part thereof, and FIG. 3 is an exploded view. The beer pouring cock 30 is used when pouring beer into a mug, and as shown in FIG. 3, a cock body 31 and a lever inserted into the cock body 31 and manually tilted. It is composed of a member 32 and a valve stem assembly part 33 housed in the cock body 31, and is fastened by a female screw member 35 to a downstream end portion of a beer supply pipe 34 in a beer server (not shown).

  The cock body 31 has a cylindrical shape in which the liquid passage 38 penetrates along the central axis, and a lever member is provided on the left side of the upper wall (the side opposite to the connection with the beer supply pipe 34). A vertical hole 39 into which the distal end portion of the vertical hole 32 is inserted, and an annular projection 40 protruding around the outer opening of the vertical hole 39 are formed. At the end of the cock body 31 on the side of the female screw member 35, a bulged portion 41 having an enlarged diameter of the liquid passage 38 is formed, and a connecting portion between the bulged portion 41 and the liquid passage 38 is a smooth hemisphere. Is formed. A male screw 42 screwed with the female screw member 35 is formed on the outer peripheral wall portion of the enlarged diameter portion 41. In addition, the opening part which becomes the boundary of the enlarged diameter part 41 and the liquid passage 38 becomes the beer supply port (foamed beverage supply port) 37a.

  On the lower wall portion of the cock body 31, two nozzles 43 and 44 branched from the liquid passage 38 are provided so as to hang down at a predetermined length. That is, the beer discharging nozzle (foamed beverage discharging nozzle) 43 provided on the side of the enlarged diameter portion 41 is formed of a long cylindrical body, and the foam provided near the vertical hole 39 for attaching the lever member 32 is provided. The pouring nozzle 44 is formed of a short tubular body. As shown in FIG. 3, an annular groove 46 formed in the inner peripheral surface of the cock main body 31 is provided in the liquid passage 38 to which the passage 45 of the foam discharging nozzle 44 communicates with the liquid passage 38 in a range that slightly overlaps with the opening of the passage 45. The annular groove 46 and the bubble discharging nozzle 44 are configured to partially communicate with each other. In the passage 48 of the beer discharging nozzle 43, air holes 49a and 49b communicating with the passage 48 are formed from the upper wall of the cock body 31.

  The lever member 32 is provided at its distal end with a ball 50 that is freely rotatable in the annular projection 40. 51 are protruded. A lid member 52 is fitted around the ball body 50 to fit the annular projection 40 in a liquid-tight manner to prevent leakage of beer or foam.

  The valve stem assembly 33 slidably housed in the liquid passage 38 of the cock body 31 includes a slider 55 that slides in close contact with the inner peripheral surface of the liquid passage 38, a bulged portion 41 of the liquid passage 38, Is composed of a sealing member 56 that closes the opening on the opposite side while sliding along the liquid passage 38, an elastic member 57 including a coil spring interposed between the slider 55 and the sealing member 56, and a valve member 60. Basically configured. The valve mechanism 36 is constituted by the sealing member 56, the elastic member 57, and the valve member 60 except for the slider 55, and the valve mechanism 36 is connected to the slider 55 and moves in the liquid passage 38.

  The slider 55 has a central through-hole 61 penetrated along the central axis, and has an opening 62 as a concave portion communicating with the central through-hole 61 and opening outward (upward) in the radial direction. The connecting rod 51 of the lever member 32 is inserted into the opening 62 from above, and the slider 55 moves left and right according to the tilting operation of the lever member 32. A conical concave ring-shaped seal member 63 serving as a valve seat is attached to the right end (the enlarged diameter portion 41 side) end surface concave portion of the slider 55, whereas the left end surface of the slider 55 is The spring seat 64 of the elastic member 57 is formed. In the slider 55, a bubble discharge path 67 penetrating radially outward (downward) from the bottom surface of the opening 62 in a direction opposite to the opening side of the opening 62 is formed. The opening 62 and the foam discharge nozzle 44 can communicate with each other. The inner diameter of the foam discharge passage 67 is set to a size that allows the foam that has entered the opening 62 to be quickly discharged.

  The sealing member 56 has a spring seat 65 of an elastic member 57 formed on the left end side thereof, and a bottomed hole 66 is formed from the right end surface along the central axis. A female screw is threaded on the peripheral surface.

  The valve member 60 has a rod shape, and an annular seal member 71 is attached to the neck of the first valve body 70 having a bulged head. By sitting on the inner peripheral surface (valve seat 37) of the enlarged diameter portion 41 of the main body 31, the beer supply port 37a is closed, and the supply of beer from the beer supply pipe 34 to the liquid passage 38 is shut off. It is configured as follows. A large-diameter portion 72 is provided at the center of the valve member 60, and a second valve body 73 seated on a ring-shaped seal member 63 provided on the slider 55 is provided on the opposite side of the head from the large-diameter portion 72. Is formed.

  A bottomed through-hole 74 is formed along the central axis from the distal end surface of the head (first valve body) 70 of the valve member 60 to the center of the large-diameter portion 72. From the bottom of the through hole 74 to the contact surface (end surface) of the second valve body 73 with the ring-shaped seal member 63, a small hole 75 as a through hole for the sparkling beverage is formed. As shown in FIG. 2, the bubble supply port 75a opened at the contact surface of the second valve body 73 in the small hole 75 is opposite to the bubble discharge nozzle 44 with respect to the center axis of the valve member 60, that is, It is provided on the lever member 32 side (upper side). A rod 76 extends along the center axis from the large-diameter portion 72 on the side opposite to the head, and this rod 76 is inserted into the center through hole 61 of the slider 55, and is threaded at its tip. The male screw 77 is screwed into the bottomed hole 66 of the sealing member 56, so that the sealing member 56 and the valve member 60 move integrally. A groove 78 is formed on the outer periphery of the large diameter portion 72 in the circumferential direction.

  As shown in FIG. 4, in the valve stem assembly part 33 of the beer pouring cock 30 having the above-described structure, a rod 76 is inserted into the center through hole 61 of the slider 55 and the elastic member 57, and the tip of the rod 76 The parts are screwed into the bottomed holes 66 of the sealing member 56, so that the four parts are assembled as an integrated part. Then, the valve stem assembly 33 is inserted into the liquid passage 38 of the cock main body 31, and the distal end of the connecting rod 51 of the lever member 32 inserted into the vertical hole 39 of the main body 31 is The lid member 52 is screwed to the annular projection 40 in a liquid-tight manner while being connected so as to sandwich the rod body 76 in the opening 62.

  Finally, the male screw 42 provided on the outer peripheral wall of the enlarged diameter portion 41 is inserted into the female screw member 35 and tightened, whereby the beer pouring cock 30 is connected to the beer server. (See FIG. 1). When the valve stem assembly 33 is assembled to the cock main body 31, the elastic member is provided in an inner peripheral surface of the main body 31 and a space S defined by the sealing member 56 and the slider 55 as shown in FIG. 57 are stored. A communication passage 79 communicating with the passage 45 of the foam discharge nozzle 44 penetrates through a lower wall portion of the cock main body 31 defining the arrangement space S. The valve stem assembly part 33 moves left and right through the liquid passage 38 when beer or foam is poured out. In any state, the communication passage 79 is provided so that the arrangement space S always communicates with the foam discharge nozzle 44. (See FIGS. 5 to 8).

  When the beer pouring cock 30 is washed, it is disassembled into the state shown in FIG. 4, that is, the lever member 32, the cock body 31, and the valve stem assembly 33, and the valve stem assembly 33 is further removed. It is not necessary to disassemble each of the parts (55, 56, 57, 60) so that cleaning can be easily performed.

  As is clear from FIGS. 1 and 2, in the beer pouring cock 30 according to the first embodiment, the elastic member 57 having a large gap portion into which the foam enters is located on the left end portion side of the foam pouring nozzle 44 in the cock main body 31 ( It is housed in an arrangement space S defined at a portion separated from the beer discharge nozzle 43), and as described later, a structure in which foam or beer poured into a mug does not flow is provided at an arrangement position of the elastic member 57. Has become.

  In the state shown in FIGS. 1 and 2, that is, in the state of the neutral position of the lever member 32 (state before operation), the resilient force of the elastic member 57 causes the slider 55 to move its ring-shaped seal member 63 to the second valve. The bubble supply port 75a of the pore 75 opened at the contact surface of the body 73 is closed. The annular seal member 71 of the head (first valve body 70) of the valve member 60 receives the liquid pressure of beer from the beer supply pipe 34 and is pressed by the valve seat 37. The beer supply port 37a that communicates with the liquid passage 38 is also closed. Further, at the neutral position of the lever member 32, the foam discharge passage 67 of the slider 55 is closed on the inner peripheral surface of the liquid passage 38 on the side opposite to the annular groove 46 from the passage 45 of the foam discharge nozzle 44, and It does not communicate with the foam discharge nozzle 44. However, at this time, the distance between the opening of the bubble discharge passage 67 and the opening of the passage 45 is set to be short, and as described later, the bubbles that have entered the opening 62 are transferred to the bubble discharge passage 67 and the slider 55. It is configured to be able to discharge to the bubble discharging nozzle 44 from a slight gap generated between the outer peripheral surface of the main body and the inner peripheral surface of the cock body 31. Further, when the first operation of tilting the lever member 32 to the left (toward the side separated from the beer discharge nozzle 43) is performed, the slider 55 moves rightward in the liquid passage 38, so that the foam discharge path 67 is moved. When a second operation of tilting the lever member 32 to the right side (a side close to the beer discharging nozzle 43) is performed, the slider 55 is in communication with the entire passage 45 of the foam discharging nozzle 44 (see FIG. 5). Moves left in the liquid passage 38, the foam discharge passage 67 is largely separated from the opening of the passage 45 of the foam discharge nozzle 44, and is closed on the inner peripheral surface of the cock main body 31. 44 is set so as not to communicate (see FIG. 7). That is, the foam discharge path 67 of the first embodiment communicates with the passage 45 of the foam ejection nozzle 44 only during the first operation of the lever member 32 so that the opening 62 communicates with the foam ejection nozzle 44. Has become.

  Regarding the dimensional position in the main part of the beer pouring cock 30, the position of the foam supply port 75 a on the second valve body 73 side of the small hole 75, that is, the arrangement position of the ring-shaped seal member 63 is It is designed to overlap the position of the engraved annular groove 46. Further, the air holes 49a and 49b are located at positions matching the concave grooves 78 formed on the outer periphery of the large diameter portion 72 of the valve member 60. When the valve member 60 moves leftward from this position, the air is released. The communication between the holes 49a and 49b and the concave groove 78 is cut off (see FIG. 5). Further, the annular groove 46 and the passage 45 of the bubble discharging nozzle 44 are formed by an extension line of an open surface which has a substantially conical shape of the ring-shaped sealing member 63 and is expanded toward the large-diameter portion 72 of the valve member 60. It is shifted by the length from the contact point with the inner peripheral surface of the groove 46 to the inner surface of the passage 45.

[Operation of Embodiment 1]
Next, the operation of the beer pouring cock configured as described above will be described.

  As described above, when the lever member 32 is in the neutral position (the position in FIGS. 1 and 2), neither beer nor foam is poured out. That is, before the operation of the lever member 32, the annular seal member 71 of the first valve body 70 is seated by being resiliently pressed by the valve seat 37 due to the liquid pressure of the beer, and the beer supply port 37a is closed. The supply of beer from the beer supply pipe 34 to the liquid passage 38 in the cock main body 31 is shut off. Further, since the slider 55 is urged in the direction of the valve member 60 by the elastic member 57, the ring-shaped seal member 63 provided on the right end face of the slider 55 is pressed by the second valve body 73, Therefore, the bubble supply port 75a of the pore 75 is closed. That is, the supply of beer to the beer discharging nozzle 43 and the supply of foam to the foam discharging nozzle 44 are both in a cutoff state.

  When the lever member 32 is in the neutral position, the concave groove 78 formed on the outer periphery of the large diameter portion 72 of the valve member 60 matches the air holes 49a and 49b formed in the cock body 31. , The outside air is introduced into the beer discharging nozzle 43. Thereby, the beer remaining on the inner surface of the beer discharging nozzle 43 by the previous beer discharging operation is easily dropped and discharged by the introduced air. Further, the foam discharge path 67 of the slider 55 is closed on the inner peripheral surface of the cock body 31 and is not in communication with the foam discharge nozzle 44. However, at this time, since the separation length between the foam discharge path 67 and the passage 45 of the foam discharge nozzle 44 is short, the foam that has entered the opening 62 by the previous foam discharge operation is The fluid flows into the passage 45 from a slight gap formed between the outer peripheral surface of the slider 55 and the inner peripheral surface of the cock body 31.

  When pouring beer into the mug, a first operation of tilting the lever member 32 to the left in FIG. 5 is performed as shown in FIG. 6, the slider 55 moves in the direction of the beer supply pipe 34 integrally with the valve member 60, and the first valve body 70 is separated from the valve seat 37. Therefore, the beer supply port 37a is opened, and the beer flows into the liquid passage 38 from the beer supply pipe 34, enters the beer discharge nozzle 43, and is discharged into a mug (not shown).

  In this state, that is, when the large diameter portion 72 of the valve member 60 slides in the direction of the valve seat 37, the communication between the concave groove 78 of the large diameter portion 72 and the air holes 49a and 49b is cut off. Therefore, external air is not introduced into the beer discharging nozzle 43 through the air holes 49a and 49b, and excessive foaming due to air mixing during beer discharging is prevented. In addition, due to the right movement of the slider 55 by the first operation, the foam discharge path 67 is brought into a state of being in full communication with the path 45 of the foam discharge nozzle 44. Therefore, the foam that has entered the opening 62 by the previous foam ejection operation flows into the passage 45 through the foam discharge passage 67.

  When the lever member 32 is returned to the original neutral position in order to stop the beer pouring, the state shown in FIGS. 1 and 2 is obtained, and the concave groove 78 and the air holes 49a and 49b are in a position where they match. Thereby, the outside air is introduced into the beer discharge nozzle 43, and the beer remaining in the nozzle 43 is easily discharged outside the nozzle. Further, the foam discharge passage 67 of the slider 55 is closed on the inner peripheral surface of the cock body 31.

  Next, as shown in FIG. 7, a second operation of tilting the lever member 32 rightward in FIG. 7 is performed in order to pour the foam into the mug. Thereby, as shown in the enlarged view of the main part of FIG. 8, the slider 55 moves to the left against the elasticity of the elastic member 57. At this time, the first valve body 70 is pressed against the valve seat 37 by the liquid pressure of the beer, and the valve member 60 is in a position where it does not further move leftward with the beer supply port 37a closed. That is, when the lever member 32 is tilted rightward, the slider 55 moves to the left, the ring-shaped seal member 63 is separated from the second valve body 73, and the bubble supply port 75a of the fine hole 75 is opened.

  As a result, the beer in the beer supply pipe 34 enters the through hole 74 that is opened on the end face of the head of the first valve body 70, and is ejected from the bubble supply port 75 a of the fine hole 75. The pores 75 are set to have a sufficiently small inner diameter like an orifice, and the beer squirts vigorously and collides with the opposed valve seat, that is, the ring-shaped seal member 63. This gives the beer a fine foam. Since the foam has no other place to go, it flows down from the top along the annular groove 46 of the cock main body 31, and the momentum is suppressed. Then, the foam enters the passage 45 of the foam ejection nozzle 44 and is later poured onto the upper surface of the beer stored in the mug. Since the bubbles flowing down the annular groove 46 are separated from the elastic member 57 by the slider 55 that slides in the liquid passage 38 in close contact, the place where the elastic member 57 is disposed may become a bubble pool. Absent. As shown in FIG. 8, the foam discharge passage 67 of the slider 55 is closed at a great distance from the opening of the passage 45 of the foam discharge nozzle 44, and therefore enters the passage 45 from the annular groove 46. Bubbles are prevented from entering the foam discharge passage 67 from a gap between the inner peripheral surface of the cock body 31 and the outer peripheral surface of the slider 55.

  7 and 8, the slider 55, which slides in close contact with the inner peripheral surface of the liquid passage 38, is moved by the pressing of the first valve body 70 against the valve seat 37, as shown in FIGS. The volume of the space S in which the elastic member 57 is disposed close to the regulated plug member 56 and interposed between the two members 55, 56 is reduced. Since the installation space S communicates with the passage 45 of the foam discharging nozzle 44 via the communication passage 79, when the air existing in the installation space S is compressed, the air is The foam is discharged to the passage 45 of the foam discharge nozzle 44 through the communication passage 79. That is, the air in the arrangement space S is not discharged to the outside of the cock main body 31 through the outer periphery of the sealing member 56, and it is possible to prevent the bubbles and beer from leaking together with the air and to contaminate the outer surface. You.

  In the first embodiment, the position of the annular groove 46 is adjusted so that the beer squirting from the pores 75 and colliding with the ring-shaped sealing member 63 does not flow down by directly entering the foam discharging nozzle 44. Since the nozzle 45 is displaced from the position of the passage 45 in the dispensing nozzle 44 toward the enlarged diameter portion 41, the force of bubbles entering the nozzle 44 is further reduced. For this reason, even if the length of the foam discharging nozzle 44 is short, the bubbles flow down the foam discharging nozzle 44 as a laminar flow without disturbing the bubbles at the time of foam discharging. In other words, it is not necessary to increase the length of the foam ejection nozzle 44 in order to weaken the force of the foam, and it is possible to set the nozzle 44 to a minimum necessary short length.

  When the lever member 32 is returned to the original neutral position in order to stop foaming, the state shown in FIG. 1 is obtained, and the slider 55 is elastically pressed by the elastic member 57 so that the ring-shaped seal member 63 is , And the sealing member 63 closes the bubble supply port 75 a of the fine hole 75. After the generation of the foam is stopped, a part of the foam remains in the annular groove 46.

  As described above, in the configuration in which the slider 55 slides left and right in the liquid passage 38 in response to the tilting operation of the lever member 32, the inner peripheral surface of the cock main body 31 and the outer peripheral surface of the slider 55 A slight gap is inevitably present. Therefore, when the above-described foam is repeatedly poured, the foam remaining in the annular groove 46 formed on the inner peripheral surface of the cock main body 31 is transferred to the opening 62 of the slider 55 through the gap. There is a risk of getting in and collecting. However, in the first embodiment, as described above, when the slider 55 moves to the right when beer is discharged, the opening 62 and the foam discharging nozzle 44 are communicated with each other via the foam discharge path 67, and the opening is performed. The foam that has entered 62 can be discharged to the nozzle 44. Therefore, the bubbles do not remain in the opening 62 for a long period of time, and the operation of inclining the lever member 32 can always be smoothly performed, and the sanitary condition can be improved.

  In addition, since it is a simple configuration in which the foam discharge passage 67 is formed in the slider 55, the processing cost does not increase significantly, and the strength of the slider 55 hardly decreases. Further, since the bubble discharge path 67 is set to have an inner diameter that can quickly discharge the bubbles that have entered the opening 62, the bubble discharge path 67 can be prevented from being clogged with dirt, and the cleaning thereof is also easy. It is.

  9 to 12 show a beer pouring cock according to the second embodiment, and its basic configuration is the same as that of the first embodiment described above. The members are denoted by the same reference numerals.

  In the second embodiment, as shown in FIG. 9, the bubble discharge path 80 formed in the slider 55 has the opening portion of the bubble discharge path 80 and the foam discharge port in a state before the operation of the lever member 32. A part of the nozzle 44 communicates with the opening of the passage 45 so that the foam that has entered the opening 62 can be discharged to the foam discharge nozzle 44 via the foam discharge path 80. Then, when the slider 55 slides in the liquid passage 38 by the first operation of the lever member 32, the bubble discharge passage 80 is in full communication with the passage 45 of the bubble discharge nozzle 44, and When the slider 55 slides in the liquid passage 38 in the opposite direction by the two operations, the opening of the bubble discharge passage 80 is completely closed on the inner peripheral surface of the cock body 31. That is, the foam discharge passage 80 of the second embodiment is entirely closed on the inner peripheral surface of the cock main body 31 only at the time of the second operation of the lever member 32, and the opening 62 communicates with the foam discharge nozzle 44. It is becoming impossible to do it.

  As shown in FIG. 10 or FIG. 11, the opening 62 is formed in a circular shape, and a tapered surface 81 that is inclined downward toward the opening of the foam discharge passage 80 is formed at the bottom of the opening 62. Thus, the foam that has entered the opening 62 can be quickly flowed toward the foam discharge path 80. Therefore, it is possible to suppress the bubbles from remaining in the opening 62, and it becomes more sanitary. When the lower end of the lever member 32 inserted into the opening 62, that is, the lower end of the connecting rod 51 abuts against the tapered surface 81 of the opening 62, and when the lever member 32 is tilted, the connecting rod 51 has a circular shape. It is comprised so that an arc-shaped movement can be performed without trouble. In addition, since the opening 62 is formed in a circular shape, the connecting rod 51 of the lever member 32 is correspondingly formed in a substantially spherical shape, thereby improving workability. Further, by forming the opening 62 in a circular shape, the workability and strength of the opening 62 are improved. That is, the opening 62 can be formed by one drilling operation with a drill, and the tapered surface 81 is also formed at one time by the tip angle of the drill, and the operation of separately forming the tapered surface 81 is omitted. And the manufacturing cost can be reduced. By forming the tapered surface 81, when cleaning the slider 55, a cleaning tool such as a brush inserted into the opening 62 from above can be suitably guided to the foam discharge path 80 via the tapered surface 81. As a result, the foam discharge path 80 can be easily cleaned.

  Here, the leading end 51a of the connecting rod 51 of the lever member 32 may be worn with time due to sliding contact with the slider 55 in accordance with the tilting operation of the lever member 32, and an appropriate moving amount of the slider 55 may not be obtained. There is. In order to cope with this wear, the tip 51a is generally rounded, but in this case, there is a disadvantage that the number of processing steps increases and the cost increases. Accordingly, in the second embodiment, the connecting rod 51 is set in advance in anticipation of the amount of wear, and as shown in FIG. Thereby, another operation of rounding the tip 51a can be omitted, and the number of processing steps can be reduced to contribute to cost reduction.

  As shown in the first and second embodiments, the foam discharge passage formed in the slider is provided on the entire inner peripheral surface of the cock main body when the slider slides in the liquid passage by at least the second operation of the lever member. It is sufficient that the foam discharge passage is completely closed and is provided at a position where the opening and the foam discharge nozzle do not communicate with each other. For example, before the operation and at the time of the first operation, the foam discharge path fully communicates with the foam discharge nozzle. It may be a configuration. In the configuration of the first embodiment, a tapered surface that is inclined downward toward the opening of the bubble discharge path may be formed at the bottom of the opening.

It is sectional drawing in the neutral position state of the lever member of the beer pouring cock concerning Example 1 of this invention. It is a principal part enlarged view of FIG. FIG. 2 is an exploded view of the beer discharging cock shown in FIG. 1. FIG. 2 is an exploded view showing a state where valve stem assembly parts of the beer pouring cock shown in FIG. 1 are assembled. FIG. 2 is a cross-sectional view in which a lever member of the beer discharging cock illustrated in FIG. 1 is tilted to a beer discharging position. It is a principal part enlarged view of FIG. FIG. 2 is a sectional view in which a lever member of the beer pouring cock shown in FIG. 1 is tilted to a foam pouring position. It is a principal part enlarged view of FIG. It is a principal part expanded sectional view in the neutral position state of the lever member of the beer pouring cock concerning Example 2 of this invention. FIG. 10 is a plan view of the slider shown in FIG. 9. FIG. 9 is a cross-sectional view illustrating a slider and a lever member of the beer pouring cock according to the second embodiment in an exploded state. It is a bottom view of the lever member shown in FIG.

Explanation of reference numerals

31 cock main body, 32 lever member, 36 valve mechanism 37a beer supply port (foamed beverage supply port), 38 liquid passage 43 beer discharge nozzle (foamed beverage discharge nozzle), 44 foam discharge nozzle 46 annular groove, 55 slider, 62 opening (recess), 67 foam discharge path 75a foam supply port, 80 foam discharge path, 81 tapered surface

Claims (3)

A sparkling beverage pouring nozzle (43) and a foam pouring nozzle (44) branched from a liquid passage (38) in the cock body (31), and a slider (55) sliding in close contact with the liquid passage (38). A lever member (32) that is connected via a concave portion (62) formed in the slider (55) and tilted to slide the slider (55) in the liquid passage (38); An annular groove (46) engraved on the inner peripheral surface of the cock body (31) and communicating with the foam discharging nozzle (44); and the lever member (32) inserted in the liquid passage (38). And a valve mechanism (36) connected to the liquid passage (38) before the operation of the lever member (32). The foam supply port (75a) that can communicate with the (46) is closed, and the foamed beverage supply port (37a) is opened by closing the foam supply port (75a) by the first operation of the lever member (32) to open the foamed beverage. Through the liquid passage (38). The foam is poured out of the chisel (43), and the foamed beverage supply port (75a) is opened by closing the foamed beverage supply port (37a) by the second operation of the lever member (32) to foam the foam obtained from the foamed beverage into the annular groove ( 46) a sparkling beverage pouring cock operable to dispense from said foam pouring nozzle (44) via
The slider (55) has a foam discharge path (67, 80) that can be communicated with the recess (62) and the foam discharge nozzle (44) by being drilled in the slider (55),
When the slider (55) slides in the liquid passage (38) by at least the second operation of the lever member (32), the foam discharge path (67, 80) is provided on the inner periphery of the cock body (31). A foamed beverage dispensing cock characterized in that the foamed beverage dispensing cock is closed at a surface and provided at a position where the concave portion (62) and the foam dispensing nozzle (44) do not communicate with each other. A sparkling beverage pouring nozzle (43) and a foam pouring nozzle (44) branched from a liquid passage (38) in the cock body (31), and a slider (55) sliding in close contact with the liquid passage (38). A lever member (32) that is connected via a concave portion (62) formed in the slider (55) and tilted to slide the slider (55) in the liquid passage (38); An annular groove (46) engraved on the inner peripheral surface of the cock body (31) and communicating with the foam discharging nozzle (44); and the lever member (32) inserted in the liquid passage (38). And a valve mechanism (36) connected to the liquid passage (38) before the operation of the lever member (32). The foam supply port (75a) that can communicate with the (46) is closed, and the foamed beverage supply port (37a) is opened by closing the foam supply port (75a) by the first operation of the lever member (32) to open the foamed beverage. Through the liquid passage (38). The foam is poured out of the chisel (43), and the foamed beverage supply port (75a) is opened by closing the foamed beverage supply port (37a) by the second operation of the lever member (32) to foam the foam obtained from the foamed beverage into the annular groove (75). 46) a sparkling beverage pouring cock operable to dispense from said foam pouring nozzle (44) via
A foam discharge path (80) is provided at the bottom of the recess (62) of the slider (55) to allow communication between the recess (62) and the foam discharge nozzle (44). At the bottom of (62), a taper is formed which is inclined downward toward the foam discharge path (80), and the lever member (32) is configured to abut on the tapered surface (81). Drinking cock. When the slider (55) slides in the liquid passage (38) by at least the second operation of the lever member (32), the foam discharge path (80) is formed on the inner peripheral surface of the cock body (31). The sparkling beverage pouring cock according to claim 2, wherein the cock is closed and provided at a position where the concave portion (62) and the foam pouring nozzle (44) do not communicate with each other.

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