JPH0237094Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention relates to a beverage extraction device that extracts the extract from raw material powder such as coffee powder through hot water.

(Prior art) As this type of device used in vending machines etc., as seen in Japanese Utility Model Application Publication No. 165086/1986,
There is a known system in which a predetermined amount of coffee powder, which is a raw material, is supplied to the extraction mechanism via a shutter each time a certain command is given, and in this state, boiling water is pumped into the coffee powder to extract the coffee powder extract. There is.

(Problem to be solved by the invention) However, the tip of the shooter faces the inside of the extraction mechanism when coffee powder is supplied, and for this reason, steam and moisture from the previous extraction operation remaining in the extraction mechanism can cause the tip of the shoot to become particularly dry. A portion of coffee powder often adheres to the inner wall surface and remains. If such a situation is repeated, the coffee powder will solidify into a thick layer, which will not only cause problems in extracting the coffee powder, but also cause the solidified coffee powder to rot, impairing hygiene. There was a problem that there was a risk of it being lost.

In other words, in the past, there was no means to remove the raw material powder adhering to the shooter, and as a result, the raw material powder remained in the shooter, impairing the extraction of the raw material powder and hygiene. The aim is to solve the conventional problems.

[Structure of the idea]

(Means for Solving the Problem) In order to achieve this purpose, this invention has the tip of the shooter facing into the cylinder of the extraction mechanism, and feeds raw material powder into the cylinder through this shooter. In the device that extracts the extract by feeding hot water into the raw material powder, the shooter is rotatably supported, elastically biased in the direction of one rotation by a spring, and driven at one end of the shooter. an operating body interlocked with the source, and the action of the operating body rotates the shooter against the spring so that its tip faces into the cylinder, and in this state is latched by a latching mechanism; When the locking mechanism is released, the shooter is rotated by the biasing force of the spring and brought into contact with the receiving portion.

(Function) The shooter rotates against the spring by the operation of the operating body, and this rotation causes the distal end of the shooter to face into the cylinder, and this state is maintained by the latching mechanism. In this state, the raw material powder is supplied into the cylinder through the shooter. After the raw material powder is supplied into the cylinder, the latching of the shooter by the latching mechanism is released, and as a result of this release, the shooter rotates under the biasing force of the spring and comes into contact with the receiving portion. The raw material powder adhering to the inside of the shutter is peeled off and falls due to the shock caused by this contact, so that the raw material powder does not remain attached to the shutter.

(Example) An example of this invention will be described below with reference to the drawings. In the figure, reference numerals 1 and 1 are side plates provided facing each other, and a receiver 2 is disposed below between these side plates 1 and 1, and a filter tape 3 is placed on the upper surface of this receiver 2.
are in contact with each other so that they can run freely. An extraction cylinder 4 with an open top and bottom is provided between the side plates 1 and 1 so as to be able to move up and down, and this cylinder 4 has pins 5 and 5 on both outer surfaces.
These pins 5, 5 are slidably fitted into vertically elongated guide holes 6, 6 formed in both side plates 1, 1, and this cylinder 4 normally has an opening at its lower end that is connected to the filter tape. It is supported so as to be in close contact with the receiver 2 with 3 in between. A pressurizing piston 7 is slidably inserted into the cylinder 4 via O-rings 8, 8, and a shallow recess 10 is formed in the lower surface of the piston 7. Transparent members 11 such as the above are stretched.

An operating body 15 and an elevating body 16 are provided between the side plates 1, 1, each of which is formed by integrating a pair of parallel levers. The operating body 15 and the elevating body 16 each have one end connected to a support shaft 17,
It is rotatably supported via 18. A balance cylinder 19 is provided on the free end side of the operating body 15, and this balance cylinder 19 has pins 20, 20 on both outer surfaces. shaped guide hole 2
1 and 21 in a slidable manner. Operating body 15
Horizontally long notch holes 22, 22 are formed in the free ends of the pins 20, 22.
20, thereby the balance cylinder 19
is supported relative to the operating body 15. A balance piston 24 is slidably housed in the balance cylinder 19 via an O-ring 23, and the piston 24 creates a balance chamber 25 in the cylinder 19.
is formed. The balance piston 24 is elastically urged downward by a spring 26, and the cross-sectional area of the piston 24 is the same as that of the pressurizing piston 7, and
It is integrally connected to the pressurizing piston 7 via a rod 27. Furthermore, both pistons 7, 2
A hot water supply hose 28 is provided between the balance cylinder 19 and the inside of the extraction cylinder 4, and a hot water supply hose 29 is connected to the upper end surface of the balance cylinder 19. ing. The elevating body 16 is urged upward by a spring 30, and has notched grooves 31, 31 at its free end.
are loosely engaged with pins 5, 5 protruding from both sides of the extraction cylinder 4.

A drive shaft 33 that rotates in conjunction with a drive source such as a motor (not shown) is inserted between the side plates 1, 1, and first and second cams 34, 35 are attached to this drive shaft 33. The first cam 34 has a cam groove 37 formed by hollowing out the plate surface in a predetermined annular shape,
A receiving ring 38 provided at the intermediate portion of the operating body 15 is fitted into this cam groove 37 . Also, the second cam 35
has its peripheral edge in contact with a receiving ring 40 provided at the intermediate portion of the elevating body 16.

Reference numeral 51 denotes a shutter that guides coffee powder into the cylinder 4. This is rotatably supported via a support shaft 52, and is biased clockwise by a spring 53. A shaft 50 is provided as a receiving portion at a distance and opposite to this. A horizontally protruding locking piece 54 is integrally formed at the upper end of the shooter 51, and this locking piece 54 is attached to the operating body by the biasing force of the spring 53.
It elastically abuts against a pin 55 provided at the free end of 5. An outlet port 56 is formed at the lower end of the shooter 51, and a notch 57 is formed at the upper side of the extraction cylinder 4.
7 so that the tip of the outlet port 56 is connected to the cylinder 4.
It is coming within.

A hanging body 60 is provided inside one side plate 1 in parallel with the operating body 15, and this hanging body 60 is rotatably supported via a support shaft 61 at an intermediate portion near one end. The edge on the end side serves as a hook 62 and faces the front wall of the upper end of the shutter 51 in close proximity to it,
A square hole 63 is also formed in the side surface of one end.
An interlocking pin 64 is provided protruding from the side surface of the operating body 15.
This interlocking pin 64 is loosely inserted into the square hole 63 and is in contact with its upper edge.

Next, the operation will be explained. When an extract extraction command is input from the standby state shown by the solid line in FIG. 1, coffee powder is supplied into the extraction cylinder 4 from a raw material container (not shown) through the shutter 51. After this, each cam 34, 35 along with the drive shaft 33
rotates a certain angle clockwise. The cam groove 37 of the first cam 34 allows the operation body 15 to move toward the support shaft 1.
It is rotated downward about 7 as a fulcrum. Along with this, the piston 7 descends together with the balance cylinder 19, and the piston 7 enters the extraction cylinder 4 and collides with the upper surface of the coffee powder, and the downward movement of the piston 7 is controlled in accordance with this collision. The movement of the body 15 is loosened, and accordingly the balance piston 24 resists the spring 26, that is, the spring 2
The operating body 15 is moved up relative to the balance cylinder 19 while being compressed, and the operation of the operating body 15 is stopped in the middle of this movement. The spring 26 is compressed in this manner, and its reaction force pressurizes the coffee powder in the cylinder 4 via the pressurizing piston 7, so that the coffee powder is compactly compressed.

As the operating body 15 rotates downward, the pin 55 first disengages from the latching piece 54 of the shooter 51, and then
In response to this, the shooter 51 rotates very slightly clockwise about the support shaft 52, and its upper end front wall abuts against the hook 62 of the hook 60. As the rotation of the operation body 15 further progresses, the interlocking pin 64 comes into contact with the lower edge of the square hole 63 and presses the operation body 15, and in response, the latch body 60 uses the support shaft 61 as a fulcrum. The hook 62 rotates clockwise and the shutter 5
This separation causes the shooter 51 to rotate strongly clockwise around the support shaft 52 due to the biasing force of the spring 53, and the outlet 56 separates from the notch 57 of the cylinder 4. At the same time, the back surface of the shooter 51 comes into contact with the shaft 50 in an impactful manner. In this state, the piston 7 enters the cylinder 4.

In this way, the raw material powder is pressurized by the piston 7, and first, hot water heated to 95°C or higher is poured into the balance chamber 25 through the hot water supply hose 29.
It is supplied at a pressure of about Kg/ ^cm2 . Balance room 25
is connected to the extraction cylinder 4 via a hot water supply hose 28, so the hot water flows into the cylinder 4 and permeates into each part of the coffee powder, so that the extract of the coffee powder is transferred to the filter tape. 3 into the receiver 2.

After the extraction of the extract is completed, the drive shaft 33
At the same time, each cam 34, 35 further rotates clockwise by a certain angle. Then, due to the rotation of the second cam 35, the elevating body 16 is moved to the support shaft 1 by the biasing force of the spring 30.
8 as a fulcrum and rotates upward, and the extraction cylinder 4 rises accordingly. At the beginning of this upward movement, the pressurizing piston 7 is stopped, so that the coffee grounds remaining in the cylinder 4 are relatively pushed out from within the cylinder 4 as the cylinder 4 rises. Thereafter, the rotation of the first cam 34 causes the operating body 15 to rotate upward about the support shaft 17, and accordingly, the pressurizing piston 7 rises, and the area around the dregs is released. When the area around the dregs is opened in this manner, the filter tape 3 runs for a certain length and the dregs are discharged from above the receiver 2. Then, due to the rotation of the second cam 35, the elevating body 16 rotates downward about the support shaft 18 against the spring 30, and this rotation lowers the cylinder 4, and the opening at its lower end opens again. The piston 7 comes into contact with the receiver 2 with the filter tape 3 in between, and the piston 7 rises to the uppermost position based on the rotation of the first cam 34, and further engages the pin 55 and the locking piece 54 to release the shutter 5.
1 rotates counterclockwise against the spring 53, and the tip of the outlet 56 enters the cylinder 4 through the notch 57. With the above, one stroke of the extraction operation is completed, and each member returns to its initial standby position. By repeating such operations, extracts are sequentially extracted, and the residue is sequentially transferred via the filter tape 3 and disposed of in a predetermined disposal section.

By the way, when supplying coffee powder into the cylinder 4 via the shooter 51, since the tip of the outlet 56 faces the inside of the cylinder 4,
A portion of the coffee powder adheres to the inner wall surface of the shooter 51 due to steam moisture from the previous extraction operation remaining inside.
However, as described above, the shutter 51 then rotates clockwise with great force due to the biasing force of the spring 53 and comes into contact with the shaft 50 with an impact, which causes the coffee attached to the inner wall surface of the shutter 51 to be removed by the shock. The powder peels off and falls downward,
Therefore, the coffee powder is not left attached and solidified, the inner wall surface of the shooter 51 is always kept smooth, the coffee powder is always smoothly discharged, and hygiene is always maintained. It is maintained.

In addition, in the above-mentioned example, the case where the extract of coffee powder is extracted is cited as an example and explained, but it goes without saying that it can be similarly applied to the case where the extract of other raw material powders is extracted.

[Effect of idea]

As explained above, according to this invention, even if a part of the raw material powder adheres to the inner wall surface of the shutter, it can be removed by applying a shock to the shutter with each extraction operation, and therefore There is no possibility of raw material powder being left attached and solidifying.
For this reason, it is possible to always smoothly supply the raw material powder and maintain good hygiene at all times.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of this invention, and FIG. 2 is a plan view of the same. 4...Cylinder, 50...Shaft (receiving part), 51...
... Shooter, 52 ... Support shaft, 53 ... Spring, 56 ... Derivation part, 60 ... Latching body, 62 ...
Latch part.

Claims (1)

[Claims for Utility Model Registration] (1) The tip of the shooter is placed in front of the cylinder of the extraction mechanism, raw material powder is supplied into the cylinder through the shooter, and boiling water is pumped into the raw material powder to extract it. In this system, the shooter is rotatably supported, elastically biased in the direction of one rotation by a spring, and an operating body linked to a drive source is engaged with one end of the shooter. The operation of the operating body causes the shooter to rotate against the spring so that its tip faces into the cylinder, and this state is latched by the latching mechanism, and by releasing this latching mechanism, the shooter is rotated against the spring. A beverage brewing device characterized in that it is rotated by a biasing force and brought into contact with a receiving portion. (2) The beverage brewing device according to claim 1, wherein the latching mechanism is interlocked with the operation of the brewing mechanism.