JP3229908B2 - Draft beer barrel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a commercial draft beer barrel,
In particular, it relates to a safety device for removing a fitting.

[0002]

2. Description of the Related Art Conventionally, as an example of this type of draft beer fitting, when a draft is attached to a base with a dispenser attached, a gas valve is opened and gas is fed into the draft beer barrel from an outer peripheral portion of the gas valve. In addition, a configuration is known in which a beer valve is opened to send draft beer from the draft beer barrel body through the inside of the gas valve.

As another example of the fitting for draft beer barrels, a gas valve is opened, and gas is sent into the draft beer barrel from the outer periphery of the gas valve, and draft beer is delivered from the draft beer barrel through the inside of the gas valve. The configuration is known.

In any of the above-described conventional examples, when cleaning or repairing the draft beer barrel and the fitting, the gas valve of the fitting is pressed and opened to release the residual pressure in the draft beer barrel. After ensuring safety, remove the fitting from the base of the draft beer barrel body.

[0005]

However, in the configuration of the above-mentioned conventional example, the fitting can be removed from the base without opening the gas valve to release the residual pressure in the draft beer barrel main body. For this reason, when cleaning and repairing the draft beer barrel and the fitting, the fitting is removed from the base without opening the gas valve, and when there is residual pressure in the draft beer barrel, the fitting is removed while the fitting is removed. Gas is not discharged to the outside due to packing interposed between the fitting and the base, or press-fitting between a female screw and a male screw removably screwing the base and the fitting. As a result, if there is residual pressure in the draft beer barrel main body, the fitting may vigorously jump out of the base due to the residual pressure at the terminal end where the fitting is removed from the base, which may lead to personal injury, which is dangerous.

The present invention solves the above-mentioned conventional problems. When the fitting is removed from the mouthpiece of the draft beer barrel main body, the residual pressure in the draft beer barrel main body can be reliably released. It is an object of the present invention to provide a draft beer barrel that can always be safely removed to improve safety.

[0007]

The technical means of the present invention for attaining the above object is to provide a method for mounting a draft beer barrel between a base and a fitting bush removably screwed inside the base. In the draft beer barrel sealed with the packing interposed, while the fitting is being rotated and removed from the die, the draft beer can be communicated with the outside so as to communicate with the outside of the draft beer barrel. A hole is formed.

The exhaust gas hole is preferably formed so that the inside of the draft beer barrel can communicate with the outside at an initial position when the fitting is removed from the mouthpiece so that the gas in the draft beer barrel can be discharged. .

[0009]

According to the present invention, the residual pressure in the draft beer barrel can be released by opening the draft beer barrel through the exhaust gas hole to open the draft beer barrel while the fitting is being rotated and removed from the base. When the fitting is removed from the base, the residual pressure in the draft beer barrel main body can be reliably released.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. 1 and 2 show a draft beer barrel according to a first embodiment of the present invention. FIG. 1 is a sectional view showing a state in which a fitting is attached, and FIG. 2 is a sectional view showing a state in which the fitting is being removed.

As shown in FIGS. 1 and 2, a hole 3 is formed in the center of an upper mirror 2 of a draft beer barrel 1 made of stainless steel, and a base of a base 4 is fixed to an edge of the hole 3 by welding. I have. The fitting 26 will be described. The bush 5 is inserted into the base 4 and the upper part in the draft beer barrel main body 1, and the male screw 7 formed on the upper outer circumference of the bush 5 can be removed from the female screw 6 formed on the upper inner circumference of the base 4. Is screwed into. Between the annular projection 8 formed on the inner periphery of the base of the base 4 and the annular step 9 formed on the outer periphery of the intermediate portion of the bush 5 and between the outer peripheral surface of the bush 5 and the inner peripheral surface of the base 4 A packing 10 made of an O-ring is interposed and sealed in a compressed state. The packing 10 is fitted to the outer periphery of the bush 5 in a press-contact state before the bush 5 is assembled into the base 4 and the draft beer barrel main body 1.
The outer diameter of 0 is substantially equal to the inner diameter of the base 4 or slightly smaller than the inner diameter of the base 4.

The upper part of the beer tube (down tube) 11 is inserted into the bush 5, and the beer tube 11
Is located near the bottom of the draft beer barrel 1 at its lower end,
It is movable in the axial direction. Inside the upper end of the beer tube 11, a lower portion of a gas valve 12 having an outer peripheral portion formed of rubber is fixed by press fitting or the like. Bush 5
An annular projection 13 is formed on the inner periphery of the lower end of the
On the outer periphery of the beer tube 11, a retaining disc 14 is provided. The retaining disc 14 can guide the movement of the beer tube 11 in the axial direction. The bush 5 and the inside of the draft beer barrel main body 1 are communicated with each other by a hole formed in a lower portion of the bush 5 and a notch 15 formed in the retaining disc 14.

The beer tube 11 is provided between the flange 16 of the beer tube 11 and the retaining disc 14.
A compression spring 17 is interposed on the outer periphery of the beer tube 11 and the elasticity of the compression spring 17 urges the beer tube 11 and the gas valve 12 upward integrally. As a result, the upper outer peripheral portion made of rubber of the gas valve 12 is brought into contact with the valve seat 18 provided inside the bush 5, and the drain passage 19 is closed. When the gas valve 12 and the beer tube 11 are pressed and descend against the elasticity of the compression spring 17, the gas valve 12 is separated from the valve seat 18, the gas flow path 19 is opened, and the inside of the beer barrel body 1 is opened. It is open to the outside through the gas flow path 19.

A beer valve 20 made of stainless steel is provided inside the upper part of the beer tube 11 so as to be movable in the axial direction. Beer valve 2 in beer tube 11
Step 21 and beer valve 20
The compression spring 22 is interposed between the beer valve 20 and the elasticity of the compression spring 22 urges the beer valve 20 upward. As a result, the beer valve 20 is brought into contact with the rubber valve seat 23 of the gas valve 12, and the beer flow path 24 is closed. When the beer valve 20 is pressed and descends against the elasticity of the compression spring 22, the beer valve 20 is separated from the valve seat 22, the beer flow path 24 is opened, and the inside of the draft beer barrel main body 1 has a beer flow. Road 2
4 to open to the outside.

Inside the upper end (outer end) of the bush 5, a pair of engagement projections 25 for rotation operation are provided so as to be out of phase by 180 degrees.

The fitting 26 having the above structure engages an engaging portion of a jig (not shown) with the engaging projection 25 of the bush 5 to apply a rotational force to the bush 5 in a direction in which the female screw 6 and the male screw 7 are loosened. As a result, the whole can be integrally rotated by frictional resistance due to the elasticity of the compression springs 17 and 22, and can be removed from the base 4. The exhaust gas hole 27 is formed in the lower portion of the base 4 so that the inside of the draft beer barrel main body 1 can communicate with the outside while the fitting 26 is being rotated and removed from the base 4.
Are formed at one or a plurality of locations in the direction crossing the axis. If there is residual pressure in the draft beer barrel main body 1 at the terminal end where the fitting 26 is removed from the base 4, the fitting 26 may jump out of the base 4 due to residual pressure,
If there is residual pressure in the draft beer barrel main body 1, the female screw 6 and the male screw 7 are brought into a press-contact state, and a relatively large force is required when rotating the fitting 26. Therefore, when the fitting 26 is removed from the base 4, the exhaust gas hole 27 allows the inside of the draft beer barrel main body 1 to communicate with the outside at an initial position as much as possible so that the gas in the draft beer barrel main body 1 can be discharged. It is preferable to form the base 4 as close to the bottom as possible.

The operation of the above configuration will be described below. First, a description will be given of the operation of pouring draft beer. A dispenser (not shown) is attached to the base 4, the gas valve 12 is pressed, and the gas valve 12 and the beer tube 11 are lowered against the elasticity of the compression spring 17, and The beer valve 20 is pressed, and the beer valve 20 is lowered against the elasticity of the compression spring 22. Accordingly, the gas valve 12 is separated from the valve seat 18 of the bush 5 to open the gas flow path 19 and the beer valve 2
0 is separated from the valve seat 23 of the gas valve 12 to open the beer flow path 24. Then, by sending gas into the draft beer barrel main body 1 from the gas flow path 19, draft beer in the draft beer barrel main body 1 can be discharged from the beer flow path 24 to the outside via the beer tube 11. During this time, base 4
Since the bush 5 and the bush 5 are sealed by the packing 10 and the inside of the draft beer barrel main body 1 and the exhaust gas hole 27 are shut off, there is no possibility that gas in the draft beer barrel main body 1 is discharged from the exhaust gas hole 27.

Next, the operation of removing the fitting 26 will be described. In the state of FIG. 1, the engaging portion of the jig is engaged with the engaging projection 25 of the bush 5 of the fitting 26,
The fitting 26 can be rotated as described above by rotating the jig and applying a rotational force to the bush 5 via the engagement portion and the engagement protrusion 25 of the bush 5. At this time, the upper step 2 of the bush 5 is
8, the fitting 26 can be rotated with a relatively small force by releasing the press-contact state between the female screw 6 and the male screw 7. Then, when the female screw 6 and the male screw 7 begin to loosen and the fitting 26 starts to come off from the base 4 together with the packing 10 as shown in FIG. 2, the draft beer barrel main body 1 is opened to the outside by the exhaust gas hole 27, and the draft beer barrel main body 1 is opened. The internal gas can be discharged to the outside through the exhaust gas hole 27, and the residual pressure in the draft beer barrel main body 1 can be released. Subsequently, by applying a rotational force to the bush 5 by operating the jig, the screws 6 and 7 can be loosened and the fitting 26 can be removed from the base 4. At this time, since the residual pressure in the draft beer barrel main body 1 is released to the outside as described above, the fitting 26 can be safely removed from the base 4 with a relatively small force. Therefore, cleaning, repair, and the like of the draft beer barrel 1 and the fitting 26 can be performed.

Next, a second embodiment of the present invention will be described. FIGS. 3 and 4 show a draft beer barrel according to a second embodiment of the present invention. FIG. 3 is a cross-sectional view showing a state in which a fitting is attached, and FIG. 4 is a cross-sectional view showing a state in which the fitting is being removed.

In the first embodiment, when a beer is dispensed to the base 4 and a draft beer is dispensed, the gas valve 12 is opened and gas is sent from the outer periphery of the gas valve 12 into the draft beer barrel body 1 and the beer is beer. Open the valve 20 and transfer the draft beer from the draft beer barrel 1 to the gas valve 1
Although the invention is applied to a draft beer barrel of a type which is sent out through the inside of the barrel 2, in the present embodiment, the gas valve is opened and gas is sent from the outer periphery of the gas valve into the draft beer barrel body, and the draft beer is transferred to the draft beer barrel. The present invention is applied to a draft beer barrel of a type that is sent out from the main body through the inside of the gas valve.

As shown in FIGS. 3 and 4, a hole 33 is formed in the center of the upper mirror 32 of the draft beer barrel 31 made of stainless steel, and the base of the base 34 is fixed to the edge of the hole 33 by welding. I have. The fitting 50 will be described. The bush 35 is inserted into the base 34 and the upper part in the draft beer barrel main body 31, and the male screw 37 formed on the upper outer periphery of the bush 35 can be removed from the female screw 36 formed on the upper inner periphery of the base 34. Is screwed on. Between the annular projection 38 formed on the inner periphery of the base of the base 34 and the annular step 39 formed on the outer periphery of the middle part of the bush 35 and between the outer peripheral surface of the bush 35 and the inner peripheral surface of the base 34 A packing 40 made of an O-ring is interposed in a compressed state and sealed. The packing 40 is fitted to the outer periphery of the bush 35 in a press-contact state before the bush 35 is assembled with the base 34 and the draft beer barrel main body 31, and the outer diameter of the packing 40 is substantially equal to the inner diameter of the base 34 or the base 34.
It is formed so as to have a slightly smaller diameter than the inner diameter of.

The upper portion of the beer tube 41 is inserted into the bush 35, and a male screw 44 formed on the outer periphery of the upper large-diameter portion 43 of the beer tube 41 is screwed into a female screw 42 formed on the inner periphery of the lower end of the bush 35. Have been. The lower end of the beer tube 41 is located near the bottom of the draft beer barrel main body 31. The inside of the bush 35 and the inside of the draft beer barrel 31 are communicated with each other by holes 45 formed at a plurality of locations below the bush 35, and holes 46 are formed at a plurality of locations at the upper end of the beer tube 41.

A gas valve 47 is vertically movable between the inner periphery of the upper end of the bush 35 and the outer periphery of the upper end of the beer tube 41 so as to be prevented from falling off. A spring receiver 48 is provided below the gas valve 47, and a compression spring 49 is interposed between the spring receiver 48 and the large-diameter portion 43 of the beer tube 41. The elasticity of the compression spring 49 causes the gas valve 47 to move upward. The inner circumference of the upper end of the bush 35 and the outer circumference of the upper end of the beer tube 41 are closed in a sealed state. When the gas valve 47 is pressed and descends against the elasticity of the compression spring 49, a flow path is formed between the gas valve 47 and the inner periphery of the upper end of the bush 35, and the hole 46 of the beer tube 41 is exposed. Open to the public.

The fitting 50 having the above-described structure is mounted on the bush 35 by a jig (not shown).
By applying a rotational force in the direction in which the head is loosened, the whole can be integrally rotated and removed from the base. Then, while the fitting 50 is being rotated and removed from the base 34, an exhaust gas hole 51 is provided at one or more locations in the lower part of the base 34 in the direction crossing the axis so that the inside of the draft beer barrel 31 can communicate with the outside. Is formed. Then, when the exhaust gas hole 51 removes the fitting 50 from the base 34, the inside of the draft beer barrel main body 31 is communicated with the outside at an initial position as much as possible so that the gas in the draft beer barrel main body 31 can be discharged. As in the first embodiment, it is preferable to form the base 34 as close to the lower part as possible.

The operation of the above configuration will be described below. First, the operation of pouring out draft beer will be described. A dispenser (not shown) is attached to the base 34, the gas valve 47 is pressed, and the gas valve 47 is lowered against the elasticity of the compression spring 49. Accordingly, a flow path is formed between the gas valve 47 and the inner periphery of the upper end of the bush 35, and the hole 46 at the upper end of the beer tube 41 can be exposed and opened. Then, by sending gas into the draft beer barrel main body 31 from the flow channel, draft beer in the draft beer barrel main body 31 is passed through the beer tube 41 to the hole 46 at the upper end thereof.
Can be poured out. During this time, the base 34 and the bush 35 are sealed by the packing 40, and the inside of the draft beer barrel main body 31 and the exhaust gas hole 51 are shut off.
There is no danger of being discharged from.

Next, the operation of removing the fitting 50 will be described. In the state of FIG. 3, the jig is engaged with the upper outer periphery of the bush 35, and preferably the jig is rotated while the bush 35 is pressed, so that the jig is rotated through both engagement portions (not shown). The fitting 50 can be rotated by applying a rotational force to 35. Then, when the female screw 36 and the male screw 37 begin to loosen and the fitting 50 starts to come off from the base 34 together with the packing 40 as shown in FIG. 4, the inside of the draft beer barrel main body 31 is opened to the outside through the exhaust gas hole 51, and the draft beer barrel main body 31 is opened. The gas inside is discharged to the outside through the exhaust gas hole 51, and the residual pressure in the draft beer barrel main body 31 can be released. Subsequently, by applying a rotational force to the bush 35 by operating the jig, the screws 36, 3
7 can be loosened to remove the fitting 50 from the base 35. At this time, the draft beer barrel 31
Since the residual pressure inside is outside, the fitting 50
Can be safely removed from the base 34. Therefore,
Cleaning of draft beer barrel body 31 and fitting 50,
Repair can be performed.

In addition, the present invention can be variously modified without departing from the basic technical concept.

[0028]

As described above, according to the present invention, the draft beer is opened by connecting the inside of the draft beer barrel body to the outside through the exhaust gas hole formed in the die while rotating the fitting to remove it from the die. Since the residual pressure in the barrel main body can be released, the residual pressure in the draft beer barrel main body can be reliably released when the fitting is removed from the base. Therefore, safety can be improved by always enabling safe removal.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a draft beer barrel according to a first embodiment of the present invention, with a fitting attached.

FIG. 2 is a cross-sectional view showing the same draft beer barrel in a state where a fitting is being removed.

FIG. 3 is a sectional view showing a draft beer barrel according to a second embodiment of the present invention, with a fitting attached.

FIG. 4 is a cross-sectional view showing the same draft beer barrel in a state in which a fitting is being removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Draft beer barrel main body 4 Cap 5 Bush 10 Packing 11 Beer tube 12 Gas valve 20 Beer valve 26 Fitting 27 Exhaust gas hole 31 Draft beer barrel main body 34 Cap 35 Bush 40 Packing 47 Gas valve 50 Fitting 51 Exhaust gas hole

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 51/16 B65D 8/04 B67D 1/04 B67D 1/08

Claims (1)

(57) [Claims] In a draft beer barrel sealed with a packing interposed between a base of a draft beer barrel main body and a bush of a fitting detachably screwed inside the base, the fitting is rotated to rotate the fitting. A draft beer barrel in which an exhaust gas hole is formed in the base in a direction crossing its axis so that the inside of the draft beer barrel body can communicate with the outside while being removed from the base.