Mill crushed material storage part, mill crushed material storage part lid, and mill crushed material storage part lid door

Abstract

To provide a mill that allows a crushed material storage part, lid, and door to be fitted to each other reliably when a material to be crushed stored in the crushed material storage part is being crushed, and to prevent positional deviation of a shaft and a crushing part.SOLUTION: A cylindrical crushed material charging part 111 and a rim 112 on the circumference of the crushed material charging part are provided. The rim part has three or more groove parts and a first inclination inclined toward the center of the cylinder and has a second inclination inclined toward the center point between the adjacent grooves with each of the grooves as an apex so that a crushing part can be taken out easily from a mill crushed material storage part. Also, since the crushing part can be taken out keeping the state in which the particle size is adjusted to an appropriate size, there is no burden of adjusting the particle size to an appropriate size each time the crushing part is taken out. The crushed material storage part, a crushed material storage part lid 12, and a crushed material storage part lid door 13 are fitted to each other reliably even when the material to be crushed is being crushed, and the material to be crushed can be milled uniformly to an appropriate particle size since the position of the crushing part is not shifted.SELECTED DRAWING: Figure 4

Description

Background Art

[0001] The present invention relates to a storage unit for an object to be crushed used in a mill for crushing objects to be crushed such as beans such as coffee beans, tea, or dried foods such as dried small fish, and a lid thereof.

[0002] In order to extract coffee from coffee beans, an operation of crushing the coffee beans to an appropriate particle size by a mill is performed. Such mills include a blade grinder that rotates a propeller-shaped blade and crushes the beans by impact, a conical cutter that inserts a frustum of a cone having a plurality of inner blades screwed on the outer peripheral surface into a cylinder having a plurality of outer blades screwed on the inner peripheral surface, and crushes the beans that enter between the outer blades and the rotating inner blades, a flat cutter formed by oppositely arranging a pair of flat plates each having a plurality of blades radially screwed on the opposing surfaces, and a roll grinder formed by oppositely arranging a pair of circular bar-shaped members each having a plurality of blades provided on the outer peripheral surface.

[0003] As an important requirement for crushing coffee beans to an appropriate particle size by a mill, it is required that a lid that supports a shaft connecting a storage unit that stores the object to be crushed and a crushing unit is securely fixed so that the position of the crushing unit for crushing the object to be crushed does not shift during the crushing operation.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, even in the inventions according to Patent Document 1 and Patent Document 2, in order to clean and sweep the inside of the object-to-be-crushed storage part neatly with a conventional mill, it is necessary to take out the crushing part from the object-to-be-crushed storage part. To take out the crushing part, it is necessary to remove parts and the like, and when returning it to the original state, it is found that it takes at least the same amount of labor and time as the operation of taking out the crushing part, and there is also a burden of readjusting to an appropriate particle size again.

Means for Solving the Problems

[0006] In order to solve the above problems, the inventions of Claim 1 and Claim 2 are provided with a cylindrical object-to-be-crushed input part and a flange part on the circumference of the object-to-be-crushed input part. The flange part has three or more groove parts and a first inclination inclined toward the center of the cylinder, and the angle of the first inclination is 5 degrees to 55 degrees.

[0007] Furthermore, the invention of Claim 3 has a second inclination that inclines toward the center point between adjacent groove parts with each of the groove parts as the apex, and the angle of the second inclination is 1 degree to 45 degrees.

[0008] In addition, the invention of Claim 4 is a mill object-to-be-crushed lid that is detachable from the mill object-to-be-crushed storage part according to Claim 2, and includes a top surface part, a top surface side surface part whose angle with the top surface part is the same as the angle of the first inclination, and the same number of first claw parts as the number of the groove parts on the top surface side surface part. The flange part and the side surface part are in close contact, the groove part and the claw part are engaged, and by rotating the mill object-to-be-crushed lid, as a result of the second inclination of the flange part, the claw part presses and fixes the mill object-to-be-crushed storage part. In Claim 5, a door having a similar structure is engaged with the invention of Claim 4.

Advantages of the Invention

[0009] According to the inventions of Claim 3 and Claim 5, even in a mill operated manually, even when the object to be crushed stored in the object-to-be-crushed storage part is being crushed, the object-to-be-crushed storage part, the lid, and the door are surely engaged, and displacement of the shaft and the crushing part can be prevented.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

[11] are crushed.

Figure 3

Figure 4

Figure 5

[11] , the lid

[12] of the material to be crushed storage section, and the door

[13] of the lid of the material to be crushed storage section.

Figure 6

[11] according to the present invention.

Figure 7

[11] according to the present invention.

Figure 8

[112] of the material to be crushed storage section

[11] according to the present invention.

Figure 9

[112] of the material to be crushed storage section

[11] according to the present invention.

Figure 10

[112] of the material to be crushed storage section

[11] according to the present invention.

Figure 11

[12] of the material to be crushed storage section according to the present invention.

Figure 12

[12] of the material to be crushed storage section according to the present invention.

Figure 13

[122] of the lid

[12] of the material to be crushed storage section according to the present invention.

Figure 14

[13] of the lid of the material to be crushed storage section according to the present invention.

Figure 15

[132] of the door

[13] of the lid of the material to be crushed storage section according to the present invention.

Figure 16

[132] of the door

[13] of the lid of the material to be crushed storage section according to the present invention.This is a bottom view explaining the shape of the stopper portion 134 of the cover door 13 of the object-to-be-crushed storage portion according to the present invention.

Figure 17

Figure 18

Figure 19

Figure 20

Figure 21

Figure 22

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are examples for explaining the present invention and are not intended to limit the present invention only to those embodiments. Further, the present invention can be variously modified without departing from its gist. Furthermore, the same reference numerals are given to the same components in each drawing as much as possible, and duplicate explanations are omitted.

[0012] Figure 1 is an external perspective view of the mill 1 according to the present invention. The mill 1 includes a crushed material storage section 11 for temporarily storing crushed materials M such as beans like coffee beans, tea, or dried foods like dried small fish, and a crushing section 16 for crushing the crushed materials that fall from the crushed material storage section 11. Further, Figure 2 is a cross-sectional view of the mill 1 according to the present invention, showing how the coffee beans CB introduced into the crushed material storage section 11 are crushed by the crushing section 16.

[0013] As shown in Figures 1 and 2, the crushed material storage section 11 may be formed in a cylindrical shape like a doorknob as shown in the figure, or the shape does not matter. One end side of the shaft 5 penetrates through the through hole 123. At one end of the shaft 5, one end of a rotating arm 8 for rotating the shaft 5 is attached, and at the other end of the rotating arm 8, a knob 9 that a user grips is rotatably attached.

[0014] As shown in the figure, coffee beans CB as the crushed material M are introduced into the crushed material storage section 11 from the crushed material input section 111 at the upper part. When the knob 9 is manually rotated, it is crushed by the crushing section 16 and becomes coffee bean powder CBp. Here, although there are various shapes of the crushing section 16, the shape of the crushing section 16 is not defined in the mill 1.

[0015] When the crushed material storage section 11 and the crushed material storage section lid 12 can be easily detached to take out the crushing section 16 from the crushed material storage section 11, there is a concern that the position of the crushed material storage section lid 12 may shift due to the vibration of crushing, and the shaft 5 and the crushing section 16 may also shift, and it may not be possible to grind to an appropriate particle size. To solve this concern, the structures of the crushed material storage section 11, the crushed material storage section lid 12, and the crushed material storage section lid door 13 of the present invention will be described below.

[0016] Figure 3 is an external perspective view of the upper part of the mill 1 according to the present invention, and Figure 4 is an external perspective view of the upper part of the mill 1 according to the present invention disassembled into the crushed material storage section 11, the crushed material storage section lid 12, and the crushed material storage section lid door 13. As shown in both figures, the upper part of the mill 1 is formed with the crushed material storage section 11, the crushed material storage section lid 12, and the crushed material storage section lid door 13 in a fitted state. Hereinafter, the structures of each part will be described.

[0017] First, the crushed material storage unit 11 will be described. FIG. 5 is an external perspective view of the crushed material storage unit 11 according to the present invention, FIG. 6 is a plan view of the crushed material storage unit 11 according to the present invention, FIG. 7 is a cross-sectional view showing the vertical angle of the edge portion 112 of the crushed material storage unit 11 according to the present invention, FIG. 8 is a cross-sectional view showing the horizontal angle of the edge portion 112 of the crushed material storage unit 11 according to the present invention, and FIG. 9 is a bottom view showing the horizontal angle of the edge portion 112 of the crushed material storage unit 11 according to the present invention.

[0018] As shown in FIG. 5, the crushed material storage unit 11 is cylindrical, and the crushed material input unit 111 for inputting the crushed material M is annular. An edge portion 112 is provided around the crushed material input unit 111. As shown in the cross-sectional view of FIG. 7, the cross-section of the edge portion 112 is trapezoidal and has an inclination (hereinafter, the angle in the vertical direction is referred to as "first inclination r1") toward the central portion of the crushed material input unit 111. The angle of the first inclination r1 is preferably 5 degrees to 55 degrees, and more preferably 25 degrees to 35 degrees.

[0019] As shown in FIGS. 6 to 9, three or more groove portions 112a to 112c may be provided in the edge portion 112. The groove portions 112a to 112c are grooves that fit with the first claw portions 122a to 122c described later, and the size does not matter as long as they can fit with the first claw portions 122a to 122c.

[0020] The positions of the groove portions 112a to 112c are not particularly limited as long as they can fit with the first claw portions 122a to 122c, but as shown in FIGS. 6 and 9, they are preferably arranged equally.

[0021] As shown in FIGS. 8 and 9, the height 112h of the edge portion 112 is not defined, but has an inclination (hereinafter, the angle in the horizontal direction is referred to as "second inclination r2") that inclines in the circumferential direction as shown by the arrow toward the center point 112t1 between the adjacent groove portions 112a and 112b with the groove portions 112a and 112c as the vertices. The center points 112t2 between the groove portions 112b and 112c and the center point 112t3 between the groove portions 112c and 112a may have the same shape.

[0022] The angle of the second inclination r2 is preferably from 1 degree to 45 degrees, more preferably from 25 degrees to 35 degrees. As will be described later, the second inclination r2 tightens the fitting between the groove portions 112a to 112c and the first claw portions 122a to 122c, which will be described later, resulting in a strong fitting.

[0023] Next, the lid 12 for the crushed material storage section will be described. FIG. 10 is an external perspective view of the lid 12 for the crushed material storage section according to the present invention, FIG. 11 is a bottom view of the lid 12 for the crushed material storage section according to the present invention, and FIG. 12 is a cross-sectional view showing the vertical angle of the top surface side portion 122 of the lid 12 for the crushed material storage section according to the present invention.

[0024] As shown in FIGS. 10 and 11, the lid 12 for the crushed material storage section serves as a lid for the crushed material input section of the crushed material storage section 11, and is composed of a top surface portion 121, a top surface side portion 122, and the same number of first claw portions 122a to 122c as the number of the groove portions 112a to 112c on the top surface side portion 122. In the bottom view, it is in a fan shape with a central angle of 180 degrees or more. A through hole 123 may be provided at the central position of the lid 12 for the crushed material storage section in order to penetrate one end side of the shaft 5.

[0025] As shown in FIG. 12, the angle r3 formed by the top surface portion 121 and the top surface side portion 122 is equal to the first inclination r1 of the ridge portion 112 described above, or preferably the difference between r1 and r3 is within 5 degrees. Due to the approximation of r1 and r3, the ridge portion 112 and the top surface side portion 122 are in close contact.

[0026] As shown in FIGS. 10 to 12, three or more first claw portions 122a to 122c may be provided on the top surface side portion 122. The first claw portions 122a to 122c are claws that fit with the groove portions 112a to 112c, and the size does not matter as long as they can fit with the groove portions 112a to 112c.

[0027] The positions of the first claw portions 122a to 122c are not particularly limited as long as they can be fitted with the groove portion 112. However, as shown in FIGS. 10 and 11, they are preferably arranged equally. Further, the height 122h of the first claw portions 122a to 122c is not limited as long as it can be fitted with the groove portion 112. However, considering the adhesion, it is preferably several millimeters longer than the height 112h of the groove portion 112.

[0028] Next, the lid door 13 of the object to be crushed storage portion will be described. FIG. 13 is an external perspective view of the lid door 13 of the object to be crushed storage portion according to the present invention, FIG. 14 is a side view showing the vertical angle of the door side surface portion 132 of the lid door 13 of the object to be crushed storage portion according to the present invention, FIG. 15 is an external view for explaining the shape of the second claw portion 132a provided on the door side surface portion 132 of the lid door 13 of the object to be crushed storage portion according to the present invention, and FIG. 16 is a bottom view for explaining the shape of the stopper portion 134 of the lid door 13 of the object to be crushed storage portion according to the present invention.

[0029] As shown in FIGS. 13, 15, and 16, the lid door 13 of the object to be crushed storage portion serves to close the lid 12 of the object to be crushed storage portion after the object to be crushed M is inserted, and is composed of a door top surface portion 131 and a door side surface portion 132, and is semi-circular in a plan view. A door protrusion portion 133 used when handling the lid door 13 of the object to be crushed storage portion may be provided, and a stopper portion 134 may be provided for the purpose of preventing the tightening of the lid 12 of the object to be crushed storage portion from loosening during crushing.

[0030] As shown in FIG. 14, the angle r4 formed by the door top surface portion 131 and the door side surface portion 132 is preferably equal to the first inclination r1 of the groove portion 112 described above, or the difference between r1 and r4 is within 5 degrees. By approximating r1 and r4, the groove portion 112 and the door side surface portion 132 are in close contact.

[0031] As shown in FIGS. 14 and 16, a second claw portion 132a supported by a second claw portion support column 132b is provided on the door side surface portion 132. The height 132h of the second claw portion support column 132b is not limited as long as it can be fitted with the groove portion 112. However, considering the adhesion, it is preferably several millimeters longer than the height 112h of the groove portion 112.

[0032] The position of the second claw portion 132a supported by the second claw portion support column 132b is not particularly limited, but as shown in FIGS. 13, 15, and 16, it is preferably arranged at the center of the crushed material storage portion lid door 13.

[0033] As shown in the drawing, the door protrusion 133 is provided on the top surface of the door and is gripped when opening and closing the crushed material storage portion lid door 13. As shown in the drawing, the door protrusion 133 only needs to protrude, and its shape and position are not limited. The door protrusion 133 may not be provided.

[0034] As shown in the drawing, for the purpose of preventing the tightening of the crushed material storage portion lid 12 from loosening during crushing, a stopper portion 134 may be provided on the door back surface portion 135 of the door top surface portion 131. The role of the stopper portion 134 will be described later. <Embodiment>

[0035] Next, a structure for preventing the crushed material storage portion lid from loosening due to the vibration of crushing when the mill 1 is manually operated is shown, that is, a structure in which the crushed material storage portion 11, the crushed material storage portion lid 12, and the crushed material storage portion lid door 13 are firmly tightened.

[0036] FIG. 17 is an external perspective view, a plan view, and a cross-sectional view for explaining a state in which the crushed material storage portion lid 12 is fitted into the crushed material storage portion 11 according to the present invention.

[0037] As shown in FIG. 17a), the groove portions 112a to 112c provided in the edge portion 112 of the crushed material storage portion 11 and the first claw portions 122a to 122c provided in the crushed material storage portion lid 12 are fitted together.

[0038] FIG. 17b) is a plan view after fitting, and FIG. 17c) is a cross-sectional view. As shown in the drawing, when the crushed material storage portion lid 12 is fitted into the crushed material storage portion 11, the crushed material storage portion 11 and the crushed material storage portion lid 12 have the same inclination angles r1 and r3, so that they are in close contact with each other, the centers of the crushed material storage portion 11 and the crushed material storage portion lid 12 coincide, and it is possible to maintain horizontal.

[0039] FIG. 18 is a plan view and a bottom view for explaining a state in which a crushed material storage cover 12 is fitted into a crushed material storage part 11 according to the present invention.

[0040] As shown in FIG. 18a), after fitting the groove parts 112a to 112c provided in the edge part 112 of the crushed material storage part 11 and the first claw parts 122a to 122c provided in the crushed material storage cover 12, tightening is performed in the direction of the arrow.

[0041] After tightening, as shown in FIG. 18b) and as shown in FIG. 18c), the crushed material storage part 11 is tightened with the first claw parts 122a to 122c provided in the crushed material storage cover 12.

[0042] FIG. 19 is a diagram for explaining the tightening principle when the crushed material storage cover 12 is fitted into the crushed material storage part 11 according to the present invention.

[0043] FIG. 19a) is a diagram of a state in which the first claw part 122a provided in the crushed material storage cover 12 is fitted into the groove part 112a provided in the edge part 112 of the crushed material storage part 11.

[0044] FIG. 19b) is a diagram in which the crushed material storage cover 12 is rotated. When the crushed material storage cover 12 rotates clockwise, the first claw part 122a hits the inclination r2 of the edge part 112 of the crushed material storage part 11. As the rotation further proceeds, due to the inclination r2 of the edge part 112 of the crushed material storage part 11, the load increases and the tightening strength increases.

[0045] FIG. 20 is a plan view and a perspective view for explaining a state in which a crushed material storage cover door 13 is fitted into the crushed material storage part 11 and the crushed material storage cover 12 according to the present invention.

[0046] FIG. 20a) shows, in a plan view, a state in which the crushed material storage cover 12 is fitted into the crushed material storage part 11 according to the present invention. As shown in FIG. 18b), by rotating the crushed material storage cover 12, the groove part 112b provided in the edge part 112 of the crushed material storage part 11 appears.

[0047] As shown in Fig. 20b), the second claw portion 132a of the crushed material storage portion lid door 13 is fitted into the groove portion 112b provided in the edge portion 112 of the crushed material storage portion 11.

[0048] Fig. 21 is a diagram explaining the tightening principle when the crushed material storage portion lid door 13 is fitted to the crushed material storage portion 11 and the crushed material storage portion lid 12 according to the present invention.

[0049] As shown in Fig. 21a), the second claw portion 132a of the crushed material storage portion lid door 13 is fitted into the groove portion 112b provided in the edge portion 112 of the crushed material storage portion 11, and the crushed material storage portion lid door 13 is rotated to the left to tighten the crushed material storage portion 11. The rotation direction is opposite to that of the crushed material storage portion lid 12, but the principle of fixing the crushed material storage portion lid door 13 to the crushed material storage portion 11 is the same as the principle of fixing the crushed material storage portion lid 12 to the crushed material storage portion 11. That is, the crushed material storage portion lid door 13 rotates in the reverse direction of the tightening rotation direction of the crushed material storage portion lid 12 to tighten the crushed material storage portion 11.

[0050] Fig. 21b) is a bottom view of the state in which the crushed material storage portion lid door 13, the crushed material storage portion lid 12, and the crushed material storage portion 11 are fixed, as viewed from the bottom surface direction. The crushed material storage portion lid door 13 tightens the crushed material storage portion 11, and at the same time, the second claw portion support column 132b provided on the crushed material storage portion lid door 13 advances toward the through hole 123 due to the inclination r1 provided in the edge portion 112 of the crushed material storage portion 11 to tighten the crushed material storage portion lid 12. According to this principle, the crushed material storage portion lid door 13 tightens both the crushed material storage portion lid 12 and the crushed material storage portion 11, and the crushed material storage portion lid 12 is fixed more firmly.

[0051] Fig. 22 is a cross-sectional view explaining the reason why the stopper portion 134 is necessary when the crushed material storage portion lid door 13 is fitted to the crushed material storage portion 11 and the crushed material storage portion lid 12 according to the present invention.

[0052] Figure 22a) is a diagram showing a state in which the crushed material storage part lid door 13, the crushed material storage part lid 12, and the crushed material storage part 11 are fixed. When the crushed material storage part lid 12 rotates counterclockwise in the same direction as the tightening direction of the crushed material storage part lid door 13, the tightening between the crushed material storage part lid 12 and the crushed material storage part 11 is loosened. Therefore, a stopper part 134 is provided to prevent this.

[0053] Figure 22b) is also a diagram showing a state in which the crushed material storage part lid door 13, the crushed material storage part lid 12, and the crushed material storage part 11 are fixed. The stopper part 134 is in contact with the crushed material storage part lid 12. When a counterclockwise force acts on the crushed material storage part lid 12 in this state, a similar force is applied to the stopper part 134, and a leftward force acts on the crushed material storage part lid door 13.

[0054] Due to the characteristics of the crushed material storage part lid door 13, when the crushed material storage part lid door 13 rotates counterclockwise, the crushed material storage part lid 12 and the crushed material storage part 11 are tightened. Based on this principle, even when a counterclockwise force acts on the crushed material storage part lid 12, the tightening of the crushed material storage part lid door 13 works, and the crushed material storage part lid 12 cannot rotate counterclockwise.

[0055] By the above operations, when the crushed material storage part lid door 13, the crushed material storage part lid 12, and the crushed material storage part 11 are fixed, the crushed material storage part lid 12 will not loosen. Even when the crushed material M stored in the crushed material storage part 11 is being crushed in a manually operated state, the crushed material storage part lid door 13, the crushed material storage part lid 12, and the crushed material storage part 11 are firmly engaged, and the positions of the crushed material storage part lid 12, the shaft 5, and the crushing part 16 do not shift, so it can be uniformly ground at an appropriate particle size.

Explanation of symbols

[0056] 1 mill 5 shaft 8 rotating arm 9 knob 11 crushed material storage part 12 crushed material storage part lid 13 crushed material storage part lid door 16 crushing part 111 Fragment Input Section 112 Abyss Section 121 Top Surface 122 Top Surface Side Face 123 Through-Hole 131 Door Top Surface 132 Door Side Face 133 Door Protrusion 134 Stopper Section 135 Door Back Face 112a Groove Section a 112b Groove Section b 112c Groove Section c 122a First Claw Section a 122b First Claw Section b 122c First Claw Section c 132a Second Claw Section 132b Second Claw Section Support 112t1 Center of Groove Sections ab 112t2 Center of Groove Sections bc 112t3 Center of Groove Sections ca

Claims

1. a cylindrical crushed material input section, a flange portion on the circumference of the crushed material input section, comprising: the flange portion has a first inclination that inclines toward the center of the cylinder, the angle of the first inclination is from 5 degrees to 55 degrees, a mill crushed material storage section characterized by this.

2. the flange portion is provided with three or more groove portions, the mill crushed material storage section according to Claim 1, characterized by this.

3. the flange portion, has a second inclination with each of the groove portions as a vertex and inclining toward the center point between the adjacent groove portions, the angle of the second inclination is from 1 degree to 45 degrees, the mill crushed material storage section according to Claim 2, characterized by this.

4. a mill crushed material lid that is detachable from the mill crushed material storage section according to Claim 2, comprising a top surface portion, a top surface side surface portion whose angle with the top surface portion is the same as or the difference from the angle of the first inclination is within 5 degrees, and the same number of first claw portions as the number of the groove portions on the top surface side surface portion, the flange portion and the top surface side surface portion are in close contact, the groove portion and the claw portion are engaged, and by rotating the mill crushed material lid, as a result of the second inclination of the flange portion, the claw portion presses and fixes the mill crushed material storage section, a mill crushed material storage section lid characterized by this.

5. a mill crushed material lid door provided in the mill crushed material lid according to Claim 4, comprising a door top surface portion, a door side surface portion whose angle with the door top surface portion is the same as the angle of the first inclination, a second claw portion on the door side surface portion, and a stopper portion on the back surface of the door top surface portion, the flange portion and the door side surface portion are in close contact, the groove portion and the second claw portion are engaged, and by rotating the mill crushed material lid door, as a result of the second inclination of the flange portion, the claw portion tightens the mill crushed material storage section, and at the same time, the mill crushed material storage section lid door tightens the mill crushed material storage section lid to prevent loosening of the fixed mill crushed material storage section lid, the mill crushed material storage section lid door according to Claim 4, characterized by engaging the mill crushed material storage section lid door.

Images