JP3015804U - Draft beer pouring cock - Google Patents

Abstract

(57) [Summary] [Purpose] When the valve member is opened and draft beer is poured out,
(EN) A draft beer pouring cock in which CO ₂ gas in draft beer is not released and a froth is not excessively foamed without being swirled. [Composition] An inlet pipe is provided at the front and an outlet pipe is provided at the rear, and an intermediate chamber communicating with the inlet pipe and the outlet pipe and having a valve seat portion at the rear end is provided in the middle of these. Inside the intermediate chamber, a valve member having a valve body with a rear bubble-attaching portion attached to and detached from the valve seat portion is arranged so as to be movable in the front-rear direction. The volume change rate of the beer flow path in the intermediate chamber is minimized.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a draft beer pouring cock called a draft cock attached to a draft beer dispenser.

[0002]

[Prior art]

 Conventionally, this type of draft beer pouring cock is shown in FIG. 2, which is provided with an inlet pipe 1 in the front and an outlet pipe 2 in the rear, and the inlet pipe 1 and the outlet in the middle thereof. An intermediate chamber 4'communicated with the pipe 2 and having a valve seat portion 3 formed at a rear end thereof is provided, and a rear foamed portion 7 is attached to and detached from the valve seat portion 3 inside the intermediate chamber 4 '. A valve member 6 provided with a body 5 is arranged so as to be movable in the front-rear direction, and 8 is an operation handle for moving the valve member 6 to open and close the valve seat portion 3.

However, since the internal volume of the intermediate chamber 4'when the valve member 6 is in the closed position shown by the solid line in FIG. 2 is large, the beer flow passage volume and the valve member in this case are large. The volume change rate with the volume of the beer flow path formed when 6 moves to the open position shown by the chain line becomes large, and when the valve member 6 is opened and draft beer is poured out, it becomes a vortex flow state. There is a problem that CO ₂ gas in draft beer is likely to be released and foaming increases too much.

[0004]

[Problems to be solved by the device]

Therefore, the purpose of the present invention is to solve the problem of the conventional draft beer pouring cock as described above, and when the valve member is opened and the draft beer is poured, a swirl state does not occur and the CO in the draft beer is not generated. ₍₂₎ It is to provide a draft beer pouring cock that does not release gas and causes excessive foaming.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is provided with an inlet pipe in the front and an outlet pipe in the rear, and communicates with the inlet pipe and the outlet pipe in the middle thereof, and a valve seat portion at the rear end. Is provided with an intermediate chamber in which a valve element with a rear bubble-attaching portion attached to and detached from the valve seat is provided inside the intermediate chamber, and the valve member is movably arranged in the front-rear direction. In the draft beer pouring cock, the volume change rate of the beer passage in the intermediate chamber between the time when the valve member is closed and the time when the valve member is opened is minimized.

[0006]

[Action]

In this invention as described above, when draft beer is dispensed using this, when the valve member is in the closed position, the volume of the beer flow path formed and when the valve member is moved to the open position, When the volume change rate with the volume of the beer flow path formed is minimized and the valve member is opened and draft beer is poured out, there is no vortex flow state and the CO ₂ gas in the draft beer is It does not release and does not foam too much.

[0007]

【Example】

In the embodiment of the present invention shown in FIG. 1, the same parts as those in the prior art are designated by the same reference numerals, and the description thereof will be omitted. When the valve member 6 is in the closed position shown by the solid line in FIG. 1, the volume of the intermediate chamber 4 is small, so that the volume of the beer flow path formed at this time and the valve member 6 are shown by the chain line. The rate of volume change with the volume of the beer flow path formed when moving to the open position shown is minimized, and when the valve member 6 is opened and draft beer is poured out, there is no vortex state, The CO ₂ gas in the green beer is not released, and the foaming does not increase too much.

[0008] Figure 3 per the embodiment and the conventional example of this invention, the former intermediate chamber volume of 4 950 mm ^3, with the latter it has become a 2441Mm ^3, the volume ratio of 1 / 2.6 The results of pouring were shown at a container internal pressure of 1.5 kgf / cm ² and a temperature of 5 to 6 ° C. The results showed that the pouring time was 16 seconds and 15 seconds, respectively. It was found that the foam height ratio was 60% in the conventional example and excessive foaming occurred, whereas the foam ratio in the Example was 18%, which was an appropriate foaming ratio.

[0009]

[Effect of device]

The invention is as described above, and the inlet pipe is provided in the front and the outlet pipe is provided in the rear, and the valve seat portion is formed at the rear end in communication with the inlet pipe and the outlet pipe in the middle thereof. A valve member having a valve body in which a rear bubble-attaching portion is attached to and detached from the valve seat portion is provided inside the intermediate chamber, and the valve member is arranged so as to be movable in the front-rear direction. Since the volume change rate of the beer flow path in the intermediate chamber between the time when the beer is closed and the time when the beer is opened is minimal, when the valve member is opened and draft beer is poured out, there is no vortex flow and there is The effect is that the CO ₂ gas in the gas is not liberated and the bubbling does not increase too much.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an embodiment of the present invention.

FIG. 2 is a vertical sectional front view of a draft beer pouring cock of the same type as the present invention.

FIG. 3 is a table showing the pouring test results of this device and the conventional example.

[Explanation of symbols]

 1 inlet pipe 2 outlet pipe 3 valve seat portion 4 intermediate chamber 5 valve body 6 valve member 7 bubble portion 8 operation handle

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[Procedure amendment]

[Submission date] April 12, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

FIG. 3 is a chart showing the results of a pouring test of this device and a conventional example.

Claims (1)

[Scope of utility model registration request] 1. An intermediate chamber in which an inlet pipe is provided in the front and an outlet pipe is provided in the rear, and an intermediate chamber communicating with the inlet pipe and the outlet pipe and having a valve seat portion at the rear end is provided in the middle of these. The
In a draft beer pouring cock in which a valve body having a rear bubble-attaching portion attached to and detached from a valve seat portion is provided inside the intermediate chamber, in a draft beer pouring cock, the valve member is closed. A draft beer pouring cock, characterized in that the volume change rate of the beer flow passage in the intermediate chamber between the time of opening and the time of opening is minimized.