JP3945957B2 - Coffee mill equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coffee mill device used in a coffee beverage extraction device such as a cup vending machine, and more particularly to a coffee mill device that prevents bean clogging in a coffee mill.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a coffee beverage extraction device such as a cup vending machine has a coffee mill that pulverizes coffee beans to a predetermined particle size to produce ground beans and supplies the ground beans to the extractor. This coffee mill has, for example, a pair of crushing blades formed in a disk shape and arranged to face each other, and the coffee beans stored in the coffee bean storage unit are fed between the rotating crushing blades for crushing. Thus, ground beans are formed and supplied to the extractor, and the particle size of the ground beans can be adjusted by changing the interval between the grinding blades.
[0003]
[Problems to be solved by the invention]
However, according to the conventional coffee mill apparatus, the coffee beans may come into close contact with each other in the coffee bean storage unit or the coffee mill supply path based on the grain shape and contact state of the coffee beans, thereby causing clogging of the beans. Therefore, there is a problem that a state in which the coffee beans are not sent to the coffee mill occurs, the supply of the ground beans is stagnant, and the ground beans cannot be supplied to the extractor. In particular, deeply roasted coffee beans have a surface covered with oil and fat, and this oil and fat easily adheres to the coffee mill supply path and other coffee beans. The troublesome work of disassembling the place where the bean jam has occurred, removing the jammed coffee beans, and reassembling the place is necessary.
[0004]
Therefore, an object of the present invention is to provide a coffee mill device that can prevent clogging of coffee beans without complicating the configuration and without requiring a special control operation.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention has a fixed blade fixed to a main body and a rotary blade rotatably supported by the main body opposed to each other, and the coffee blade supplied to the main body is driven to rotate the rotary blade. In the coffee mill device for pulverizing to form ground beans, a coffee bean passage for guiding the coffee beans supplied to the main body to the fixed blade and the rotary blade, and a coffee bean passage disposed and rotating. the have a coffee bean scattering means for scattering the coffee beans fall into the bean feed member, the bean feed member, the rotary blade end the and beans feeding member for supplying the coffee beans, which rotates the rotary blade by And a wire having an elastic force that is coaxially wound around the rotating shaft of the rotary blade, and the coffee bean scattering means is provided at a free end of the wire. Providing coffee mill apparatus characterized by comprising a cap-shaped member having a projecting portion formed at predetermined intervals in the circumferential direction.
Furthermore, in order to achieve the above-mentioned object, the present invention has a fixed blade fixed to the main body and a rotary blade rotatably supported by the main body, and rotationally drives coffee beans supplied to the main body. In the coffee mill apparatus which grind | pulverizes and forms a ground bean, the coffee bean path which guide | induces the said coffee bean supplied to the said main body to the said fixed blade and the said rotary blade, and it arrange | positions at the said coffee bean path and rotates And a bean feeding member for supplying the coffee beans to the rotating blade, and a coffee bean scattering means for scattering the coffee beans falling on the rotating bean feeding member. A wire having an elastic force fixed to the blade and coaxially wound around the rotation axis of the rotary blade; and the coffee bean scattering means folds the free end of the wire. Providing coffee mill apparatus characterized by comprising a projecting portion formed by the gel.
[0006]
According to the above-described coffee mill device, the coffee beans supplied to the main body are scattered by the coffee bean scattering means, so that the coffee beans collide with the clogged portion in the coffee bean passage to eliminate the clogging.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a coffee mill device of the present invention will be described in detail with reference to the drawings.
[0008]
FIG. 1 (a) shows a coffee beverage extraction apparatus according to a first embodiment of the present invention, and guides a coffee bean storage unit 1 for storing coffee beans and coffee beans falling from the coffee bean storage unit 1 downward. A coffee bean induction unit 2 that rotates, a coffee mill 3 that crushes coffee beans supplied via the coffee bean induction unit 2 to make ground beans, and a crushing blade (described later) provided inside the coffee mill 3 is rotated. Mill motor 4, powder chute 6 that guides ground beans that are crushed by coffee mill 3 and discharged from discharge unit 3 </ b> B to an extractor (described later), and hot water is added to ground beans that are fed through powder chute 6. An extractor 16 that extracts the coffee liquid by passing it at a predetermined high pressure, and a coke produced by mixing the diluted raw water and auxiliary materials such as cream and sugar into the coffee liquid according to the sales form. Having a cup 17 for receiving a heating beverages.
[0009]
FIG. 1B shows a cross section of the coffee mill 3, which has a structure in which the coffee beans B are filled from the coffee bean storage unit 1 (not shown) to the inside of the main body 32, and is rotatable inside the main body 32. A crushing blade 30 that crushes coffee beans that are stored, a rotating shaft 4A of a mill motor 4 that rotates the crushing blade 30, a fixed blade 31 that is fixed in the main body 32 so as to face the crushing blade 30, and a rotating shaft 4A. A wire 33 </ b> A for conveying coffee beans that is helically attached to the outer peripheral portion of the paper, a grinding blade adjustment member 36 that rotatably supports the grinding blade 30 via a bearing 35, and between the grinding blade adjustment member 36 and the main body 32. And a cap-shaped bean scattering member 38 that is fixed to one end of the wire 33 </ b> A and rotates based on the rotation of the rotating shaft 4 </ b> A. Covered by a lid 3C provided on the surface.
[0010]
The crushing blade 30 has a key 30A that is key-coupled to the rotating shaft 4A, and rotates based on the rotation of the rotating shaft 4A and is slidably coupled in the length direction of the rotating shaft 4A.
[0011]
The main body 32 is pulverized by a bean introduction portion 32A provided continuously to the coffee bean guiding portion 2, a screw portion 32B that is screw-engaged with the screw portion 36A of the pulverizing blade adjusting member 36, the pulverizing blade 30 and the fixed blade 31. There is a ground bean discharging section 32C for discharging ground beans.
[0012]
The crushing blade adjustment member 36 has a screw portion 36A that is screw-engaged with the screw portion 32B of the main body 32, and rotates by gear-driving a gear portion 36B formed at an end portion with a distance adjusting motor (not shown). The grinding blade 30 is moved in the axial direction of the shaft 4A.
[0013]
The bean scattering member 38 has protrusions 38A formed at intervals of 180 degrees on the outer peripheral portion. For example, three protrusions 38A may be provided at intervals of 120 degrees, or four may be provided at intervals of 90 degrees. In this case, it is necessary to consider so as not to cause vibration or the like when the rotating shaft 4A rotates at high speed. The bean scattering member 38 can be formed, for example, by pressing a metal material such as aluminum or stainless steel, but may be a resin material such as plastic having a predetermined mechanical strength as another material.
[0014]
FIG. 2 shows the bean scattering member 38 according to the first embodiment, in which (a) is a perspective direction, (b) is a front direction, and (c) is a state as viewed from an axial direction (mill motor 4 side). . The bean scattering member 38 is fixed by the wire 33A being pressed against the inner peripheral portion of the bean scattering member 38 based on the elastic force of the wire 33A. The wire 33 </ b> A has a fixing portion 33 </ b> B fixed to the crushing blade 30. By fixing the fixing portion 33 </ b> B to the crushing blade 30, the bean scattering member 38 is attached together with the rotating shaft 4 </ b> A when the mill motor 4 rotates. The wire 33A rotates. If the coffee beans hit the protrusions 38A of the bean scattering member 38 during the rotation of the mill motor 4, the coffee beans are repelled and fly away. The protruding portion 38A of the bean scattering member 38 has a good coffee bean scattering state when the distance L ₁ from the wall surface of the bean introducing portion 32A is arranged at a position 1.5 to 2 times that of the coffee bean. Has been confirmed by the inventors.
[0015]
FIG. 3 shows a state in which coffee beans are clogged inside the coffee mill 3, and clogging of coffee beans occurs due to close contact between the coffee beans at the cross-sectionally reduced portion of the bean introduction portion 32 </ b> A. Once such bean clogging occurs, the clogged portion is compacted by the weight of the coffee beans supplied from above the paper surface, resulting in a strong clogging.
[0016]
Below, operation | movement of the coffee mill apparatus of this invention is demonstrated, referring drawings.
[0017]
By rotating the mill motor 4, the coffee beans B around the rotating shaft 4A are fed in the direction of the grinding blade 30 and the fixed blade 31 based on the feeding operation of the wire 33A. The coffee beans are filled with the coffee beans B from the coffee bean storage unit 1 to the inside of the main body 32. However, the coffee beans pass through the cross section of the bean introduction unit 32A depending on the shape, size, and roasting degree of the beans. May decrease and may cause clogging of beans.
[0018]
FIG. 4 shows an operation in which the bean scattering member 38 repels coffee beans, and when beans are clogged, coffee beans reaching the vicinity of the wire 33A are reduced. In this state, when the coffee beans that have fallen on the wire 33A hit the protrusions 38A of the bean scattering member 38, the coffee beans are repelled and fly as shown in the figure. In the figure, coffee beans are attached to the upper part of the inner wall of the bean introduction part 32A, and the repelled coffee beans bounce up in the bean introduction part 32A and hit the attached coffee beans directly to break the clogging. . As a result, the adhering coffee beans are dropped to ensure the passage of the coffee beans.
[0019]
According to the coffee mill apparatus described above, the coffee beans supplied from the bean introduction part 32A are blown off at the protrusions 38A of the rotating bean scattering member 38 and applied to the bead clogging portion so that the bean clogging is broken. Can prevent bean clogging. Further, by generating a force for flipping off the coffee beans and scattering them to the bean introduction part 32A based on the rotation of the mill motor 4, a special control operation can be dispensed with.
[0020]
FIG. 5 shows a coffee mill apparatus according to the second embodiment of the present invention, which is different from the coffee mill apparatus according to the first embodiment in the configuration in which the end portion of the wire 33A is bent to provide the bean scattering portion 33C. is doing. In the figure, the illustration of coffee beans filled in the main body 32 is omitted. In addition, about the part which has the same structure and function as the coffee mill apparatus of 1st Embodiment, since the same quote number is attached | subjected, the overlapping description is abbreviate | omitted.
[0021]
FIG. 6 shows a bean scattering portion 33C according to the second embodiment, where (a) is a perspective direction, (b) is a front direction, and (c) is a state viewed from an axial direction (mill motor 4 side). . The bean scattering portion 33C is formed by bending the end portion of the wire 33A and projecting it from the spiral portion. As with the first embodiment, the length L ₂ of the wire 33A is also good when the coffee beans are scattered when the length of the coffee beans is 1.5 to 2 times longer than the coffee beans from the wall surface of the bean introduction part 32A. It has been confirmed by the present inventor.
[0022]
According to the above-described coffee mill device, the processing of the wire 33A makes it possible to repel the coffee beans when the mill motor 4 rotates and to scatter the beans to the bean introduction part 32A. Therefore, the configuration can be further simplified.
[0023]
In the coffee mill device described above, the configuration in which the rotating shaft 4A of the mill motor 4 is arranged in the horizontal direction has been described. However, for example, the present invention can be applied to a configuration in which the rotating shaft 4A of the mill motor 4 is arranged in the vertical direction. . Alternatively, the surface of the wire 33A may be roughened so that the coffee beans hit during rotation are repelled.
[0024]
【The invention's effect】
As described above, according to the coffee mill device of the present invention, the coffee beans scattered in the bean scattering portion are applied to the portion of the coffee beans that caused the clogging to break the bean clogging, so the configuration is not complicated, Coffee beans can be prevented from clogging without requiring a special control action.
[Brief description of the drawings]
FIG. 1A is an explanatory diagram showing a coffee beverage extraction device according to a first embodiment of the present invention, and FIG. 1B is a cross-sectional view of the coffee mill according to the first embodiment of the present invention. FIG. 2A is a perspective view of a bean scattering member according to the first embodiment of the present invention, and FIG. 2B is a front view of the bean scattering member according to the first embodiment of the present invention. Fig. 3 is a side view of the bean scattering member according to the first embodiment of the present invention. Fig. 3 is an explanatory view showing a state in which coffee beans are packed in the coffee mill. Fig. 4 is a first embodiment of the present invention. Explanatory drawing which shows operation | movement of the coffee mill apparatus which concerns on FIG. 5 FIG. 5 is sectional drawing of the coffee mill which concerns on the 2nd Embodiment of this invention. FIG. 6A is a 2nd embodiment of this invention. The perspective view (b) of the bean scattering member is a front view (c) of the bean scattering member according to the second embodiment of the present invention. Side view of the bean scattering member according to state [Description of symbols]
DESCRIPTION OF SYMBOLS 1 Coffee bean storage part 2 Coffee bean guidance | induction part 3 Coffee mill 3B Discharge part 3C Cover 4 Mill motor 4A Rotating shaft 5 Measuring device 6 Powder chute 16 Extractor 17 Cup 30 Grinding blade 30A Key 31 Fixed blade 32 Main body 32A Bean introduction part 32B Screw Part 32C Bean discharging part 33A Wire 33B Fixed part 33C Bean scattering part 35 Bearing 36 Grinding blade adjustment member 36A Screw part 36B Gear part 37 Seal member 38 Bean scattering member 38A Protrusion part B Coffee beans

Claims (3)

A fixed blade fixed to the main body and a rotary blade rotatably supported by the main body are arranged to face each other, and coffee beans supplied to the main body are pulverized by rotating the rotary blade to form ground beans. In coffee mill equipment,
A coffee bean passage for guiding the coffee beans supplied to the main body to the fixed blade and the rotary blade;
A bean feed member that is arranged in the coffee bean passage and rotates to supply the coffee beans to the rotary blade;
Have a coffee bean scattering means for scattering the coffee beans fall into the bean feed member that rotates,
The bean feeding member has a wire having an elastic force, one end of which is fixed to the rotary blade, and is spirally wound around the rotary shaft of the rotary blade.
The coffee bean scattering means comprises a cap-like member provided at a free end of the wire and having protrusions formed at predetermined intervals in the circumferential direction . A fixed blade fixed to the main body and a rotary blade rotatably supported by the main body are arranged to face each other, and coffee beans supplied to the main body are pulverized by rotating the rotary blade to form ground beans. In coffee mill equipment,
A coffee bean passage for guiding the coffee beans supplied to the main body to the fixed blade and the rotary blade;
A bean feed member that is arranged in the coffee bean passage and rotates to supply the coffee beans to the rotary blade;
Coffee beans scattering means for scattering the coffee beans falling on the rotating bean feed member,
The bean feeding member has a wire having an elastic force, one end of which is fixed to the rotary blade, and is spirally wound around the rotary shaft of the rotary blade.
The coffee bean scattering means has a protrusion formed by bending the free end of the wire. The said 1st or 2nd structure of the said coffee bean scattering means of the structure by which the said protrusion part is arrange | positioned in the position of 1.5 times to 2 times the size of the said coffee bean from the inner wall surface of the said coffee bean channel | path . The coffee mill device according to item .

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