Stirring device

Abstract

To provide a stirring device that can reduce the powdery texture in beverages made by mixing powdered food with water.SOLUTION: A stirring device 1 that stores protein powder and water, and generates a protein liquid by shaking, includes: a storage part 10 which stores powder and water and vertically extends; an upper opening / closing part 11 which is located at the top of the storage part 10 in order to put the powder and water and dispense the protein liquid; a coil spring 20 which is housed inside the storage part 10 and has a constant winding diameter, whose pitch of a central part is dense, and whose pitches of both sides of the central part are loose; a middle plug 21 which is attached to one end of the coil spring, positioned at the top of the storage part 10, and suspends the coil spring 20 inside the storage part 10; and a collision body 22 which is attached to the other end of the coil spring 20, and comes into contact with the bottom surface of the storage part 10 when the storage part 10 is shaken and the coil spring 20 is extended.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mixing device for mixing powdered food and water. [Background technology]

[0002] Conventionally, an example of this type of technology is described in Patent Document 1. Patent Document 1 discloses a whisk that has a storage section with an inner space extending vertically and a grip-shaped exterior, an opening / closing section, and a coil spring with a constant winding diameter that is freely movable vertically inside the storage section, stores a liquid in which a liquid (e.g., water) and a substance to be dispersed therein (e.g., oil, powder, grains, etc.) are mixed in the storage section, disperses the substance to be dispersed in the liquid by shaking, and enables a user to create a whisk by shaking the whisk up and down or left and right with their hands. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6964923 Summary of the Invention [Problem to be solved by the invention]

[0004] Meanwhile, people who are trying to increase muscle mass and strength are recommended to drink protein within 30 minutes after exercise, which is also called the golden time. For this reason, more and more people are carrying water bottles containing protein so that they can drink protein after exercise. In recent years, therefore, there has been a demand for a stirring device that can reduce the powderiness and create a protein liquid that is easy to swallow in order to make protein easier to drink.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a stirring device that solves such problems and makes it possible to reduce the powdery texture of a beverage made by mixing powdered food with water. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention has the following configuration.

[0007] (1) A stirring device that contains a substance to be dispersed (e.g., protein powder) and a liquid (e.g., water) and generates a liquid (e.g., a protein liquid) by dispersing the substance to be dispersed in the liquid by shaking the device, A vertically extending storage section (e.g., storage section 10) for storing the object to be dispersed and the liquid; An upper opening / closing part (e.g., an upper opening / closing part 11) provided at the upper part of the storage part for putting in the object to be dispersed and the liquid and discharging the liquid material; A coil spring (e.g., coil spring 20) that is stored inside the storage section, has a constant winding diameter, a dense pitch in the center, and a sparse pitch on both sides of the center; An inner plug (e.g., inner plug 21) attached to one end of the coil spring and disposed in the upper portion of the storage section so as to cause the coil spring to hang down inside the storage section; and a collision body (e.g., collision body 22) attached to the other end of the coil spring and contacting the bottom surface of the storage section when the storage section is shaken to expand the coil spring.

[0008] According to (1), the user can put the material to be dispersed and the liquid into the agitator and shake it by hand, causing the coil spring to vibrate and swing, thereby agitating the material to be dispersed in the liquid, and can immediately take it out of the storage section and use it. By providing a pitch of the coil spring with a density, it is easy to maintain the vibration and swing using the coil spring as a weight. Furthermore, the dense pitch part of the coil spring stirs the liquid, resulting in a shearing effect. In particular, by providing the dense pitch part in the center, when the agitator 1 is shook up and down, the sparse part of the coil spring from the center to the upper part expands and contracts greatly, and the sparse part of the coil spring from the center to the lower part expands and contracts less than the sparse part above. This makes it possible to arrange a large number of turns of the coil spring in the lower part of the storage section, and it is possible to break down materials that tend to settle in the lower part of the storage section, such as powdered materials. This makes it possible to reduce the powdery texture of powdered foods and produce a liquid that is easy to swallow. In addition, at the moment that the impact body hits the bottom of the storage unit, the upper part of the coil spring expands while the lower part of the coil spring contracts. This allows the impact of the impact body hitting the bottom of the storage unit to be absorbed by the lower part of the coil spring, making it possible to reduce the impact noise when the storage unit is shaken.

[0009] (2) In paragraph (1), The impact body is A cylindrical portion (e.g., cylindrical portion 220) into which the end of the coil spring can be inserted A donut-shaped flat plate portion (e.g., flat plate portion 222) extending from the upper end of the cylindrical portion toward the central axis of the cylindrical portion; A sector-shaped recess (e.g., recess 22a) formed at a corner between the cylindrical portion and the flat plate portion, The dent is, A wall portion (e.g., wall portion 225) extending vertically along the central axis from a part of the hole, A horizontal surface portion (e.g., horizontal surface portion 226) extending from the end of the wall portion to the cylindrical portion; A pair of side surfaces (e.g., side surfaces 227, 227) extending from both circumferential sides of the wall surface portion along both circumferential sides of the horizontal surface portion; and a cutout portion (e.g., cutout 228, 228) formed by cutting out a base portion of the pair of side portions where the side portions join to the horizontal surface portion and the cylindrical portion, The stirring device according to claim 1, wherein the notch has a width that allows an end of the coil spring to be inserted therethrough.

[0010] According to (2), it is possible to attach an impact body to the end of the coil spring by inserting the end of the coil spring into the cutout and clamping the horizontal surface between the spring or by engaging two adjacent windings on the upper and lower surfaces of the cutout.

[0011] (3) In the agitation device according to (2), a plurality of protrusions (e.g., notches 228, 228) protruding downward are formed on the lower end surface of the cylindrical portion.

[0012] According to (3), when the impact body collides with the bottom surface of the storage section, the impact body collides with a plurality of protrusions (for example, small protrusions 220a, 220a), so that the impact area of ​​the impact body can be made small, thereby reducing the impact noise.

[0013] (4) In the stirring device according to (2), a plurality of bulging portions (e.g., bulging portions 222a, 222a) bulging toward the central axis of the cylindrical portion are formed on the inner end face of the flat portion.

[0014] According to (4), by forming a bulge on the inner end surface of the flat plate portion, the area of ​​the underside of the inner flat plate portion can be increased, making it possible to apply water pressure to the bottom surface of the storage section more efficiently and dispersing sediment near the bottom surface of the storage section.

[0015] (5) The agitator according to any one of (2) to (4), wherein a plurality of holes (for example, long holes 224) are formed in the flat surface of the flat portion.

[0016] According to (5), since a plurality of holes are formed in the flat surface of the flat plate portion, when the impact body moves up and down, sediment near the bottom surface of the storage section passes through the holes and easily moves to the lower portion of the coil spring.

[0017] (6) In paragraph (1), The inner plug is A cylindrical plug portion (e.g., a cylindrical portion 210) that can be inserted into the upper end portion of the storage portion and into which an end portion of the coil spring can be inserted; A flange portion (e.g., flange portion 211) extending outward from the upper end of the inner plug cylindrical portion; A donut-shaped center plug flat portion (e.g., flat portion 212) extending from the lower end of the center plug cylindrical portion toward the central axis of the center plug cylindrical portion; A fan-shaped center plug recess (e.g., recess 21a) is formed at a corner between the center plug cylindrical portion and the center plug flat portion, The dent in the inner plug is, A plug wall portion (e.g., wall portion 215) extending vertically along the central axis from a part of the hole, A plug horizontal surface portion (e.g., horizontal surface portion 216) extending from the end of the plug wall portion to the plug cylindrical portion; A pair of inside plug side portions (e.g., side portions 217, 217) extending from both circumferential sides of the inside plug wall surface portion along both circumferential sides of the inside plug horizontal surface portion; and a middle plug notch portion (e.g., notch 218, 218) formed by cutting out a base portion of the middle plug side portion and the middle plug horizontal surface portion and the middle plug cylindrical portion, The stirring device according to claim 1, wherein the inner plug notch has a width that allows an end of the coil spring to be inserted therethrough.

[0018] According to (6), it is possible to attach an impact body to the end of the coil spring by inserting the end of the coil spring into the center plug cutout portion and clamping the horizontal surface of the center plug between the springs, or by engaging two adjacent windings on the upper and lower surfaces of the center plug cutout portion.

[0019] (7) In (6), a protrusion (e.g., protrusion 219) is formed on the horizontal surface of the inside plug so as to face the wall surface of the inside plug; An agitator characterized in that an end of the coil spring can be inserted between an outer surface of the inner plug wall portion and an inner surface of the protrusion portion.

[0020] According to (7), by disposing the end of the coil spring between the outer surface of the inner plug wall portion and the inner surface of the protrusion, it is possible to guide the end of the coil spring into the cutout portion.

[0021] (8) In the stirring device of (7), a sloping surface (e.g., sloping surface 219a) that slopes upward toward the central axis of the inner plug cylindrical portion is formed on the outer circumferential side of the tip of the protrusion.

[0022] According to (8), since an inclined surface is formed on the protrusion, when the inner plug is inserted into the upper end of the storage section, the inclined surface comes into contact with the edge of the storage section, making it possible to smoothly insert the inner plug into the upper end of the storage section.

[0023] (9) The stirring device according to any one of (6) to (8), characterized in that a plurality of holes (for example, long holes 214) are formed in the flat surface of the center plug flat portion.

[0024] According to (9), the liquid in the storage section can easily move to the upper part of the storage section through the hole in the inner plug flat plate section. This makes it easier to move the liquid to the upper opening and closing section, so that when the stirring device is shaken up and down, the liquid in the storage section can be moved up and down, facilitating stirring. Effect of the Invention

[0025] According to the present invention, it is possible to provide a stirring device that makes it possible to reduce the powdery texture of a beverage made by mixing powdered food with water. [Brief description of the drawings]

[0026] [Figure 1]1 is a diagram showing the external appearance of an agitation device 1 in one embodiment of the present invention. [Diagram 2] FIG. 1 is an exploded perspective view showing components of an agitator 1 according to a first embodiment of the present invention. [Diagram 3] FIG. 1 is a diagram showing the appearance of an agitator 13 of an agitation device 1 according to a first embodiment of the present invention. [Figure 4] FIG. 2 is a perspective view showing the appearance of an inside plug 21. [Diagram 5] 13 is a diagram showing the appearance of the vicinity of a protrusion 219. FIG. [Figure 6] 2 is a side view showing a state in which an inner plug 21 is attached to one end of a coil spring 20. FIG. [Figure 7] 2 is a perspective view showing the appearance of a collision body 22. FIG. [Figure 8] 13 is a perspective view showing the appearance of a modified example of the impactor 22. FIG. [Figure 9] 13 is a view of a modified example of the impactor 22 as viewed from below. FIG. [Figure 10] FIG. 2 is a diagram for explaining in detail the pitch density of the coil spring and the wire diameter that constitutes the coil spring. [Figure 11] FIG. 2 is a diagram for explaining in detail the pitch density of the coil spring and the wire diameter that constitutes the coil spring. [Figure 12] FIG. 2 is a diagram for explaining in detail the pitch density of the coil spring and the wire diameter that constitutes the coil spring. [Figure 13] 1 is an explanatory diagram showing a comparison of the weight of protein powder adhering to the sieve meshes when a coil spring 20 is attached to a storage section 10 and when it is not attached. [Figure 14] 1 is an explanatory diagram showing a comparison of the powder sieving time when a coil spring 20 is attached to a storage section 10 and when it is not attached. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, components having the same reference numerals have the same configuration and function.

[0028] Fig. 1 is a diagram showing the appearance of an agitation device 1 in one embodiment of the present invention. Fig. 2 is an exploded perspective view showing components of the agitation device 1 in the first embodiment of the present invention. Fig. 3 is a diagram showing the appearance of an agitation unit 13 of the agitation device 1 in the first embodiment of the present invention.

[0029] [composition] The stirring device 1 includes a storage section 10, an upper opening / closing section 11, a cap section 12, and a stirring section 13. The stirring device 1 puts an object to be dispersed (e.g., protein powder) and a liquid (e.g., water) in the storage section 10, further attaches the stirring section 13, attaches the upper opening / closing section 11 to which the cap section 12 is attached to the storage section 10 to seal the storage section 10, and shakes the storage section 10 up and down and left and right to stir, thereby generating a liquid body in which the object to be dispersed in the liquid is dispersed. The user can remove the cap section 12 to take out the liquid body. In the following description, an example will be described in which protein powder is put in the storage section 10 as the object to be dispersed and water is put in the storage section 10 as the liquid, and protein liquid is generated as the liquid body by stirring.

[0030] The storage section 10 is a cylindrical container with a bottom that can store protein liquid. The bottom of the storage section 10 is formed in a disk shape with an outer diameter of about 70 mm, and the side of the storage section 10 extends from the bottom while gradually reducing in diameter. Therefore, the storage section 10 is a conical container that is close to a cylinder with a missing top, and has a gentle constriction at the upper and lower parts of the center. As a result, the center part is thick, making it easy for the user to hold. Furthermore, the storage section 10 is made of a transparent or semi-transparent and flexible material such as polyethylene or polypropylene, and the state of separation, precipitation, dispersion, etc. of the contents can be visually confirmed, and the protein liquid inside can be pushed out by pressing the storage section 10 with the hand holding it. The material of the storage section 10 may be colored or may be colored in a light color. The storage section 10 may also be made of a transparent material with a design drawn on it.

[0031] The size of the storage section 10 depicted in FIG. 1 can be, for example, 170 mm in height and 60 mm in diameter at the center when held by a person. A diameter of 50 to 70 mm, a height of 150 to 170 mm, and a volume of about 280 to 400 mm are suitable for a person to hold and swing. 1 is drawn to have a shape close to a cylinder, but other shapes are also possible. To increase the storage capacity, the center part may be made slightly wider, and to prevent the agitator 1 from slipping out of the hand when shaking it, the center part may be made to have an easy-to-grip shape, for example, a shape that can be easily gripped by placing the fingers on it.

[0032] The upper end of the storage section 10 has a flat plate portion 10a extending inwardly in a doughnut shape and a cylindrical portion 10b extending upward from the flat plate portion 10a. The flat plate portion 10a extends a length approximately equal to the thickness of the lower cylindrical portion 11a of the upper opening / closing portion 11, which will be described later. The cylindrical portion 10b has a screw thread on its side. In other words, an opening is formed at the upper end of the storage section 10 by the cylindrical portion 10b.

[0033] The upper opening / closing part 11 is attached to the upper end of the storage part 10, and narrows the opening at the upper end of the storage part 10, making it easier for the user to drink the liquid stored inside the storage part 10. The upper opening / closing part 11 is composed of a lower cylindrical part 11a formed in a cylindrical shape with an outer diameter substantially the same as the outer diameter of the flat part 10a of the storage part 10, a flat part 11b extending inward from the upper end of the lower cylindrical part 11a in a doughnut shape, and an upper cylindrical part 11c extending upward from the edge of a hole in the center of the flat part 11b. The central axis of the lower cylindrical part 11a and the central axis of the upper cylindrical part 11c are aligned. A screw groove is formed on the inner side surface of the lower cylindrical part 11a to screw into the screw thread formed at the upper end of the storage part 10. A screw thread is formed on the outer side surface of the upper cylindrical part 11c to screw into the cap part 12.

[0034] The cap portion 12 is made of a cylindrical body with a closed upper side, and a screw groove is formed on the inner side surface of the cylindrical shape to screw into the screw thread formed on the outer side surface of the upper cylindrical portion 11c.

[0035] After storing protein powder and water in the storage section 10, the upper opening / closing section 11 to which the cap section 12 is attached is screwed to the upper part of the storage section 10, thereby maintaining airtightness such that water does not spill from the storage section 10 to the outside. When the upper opening / closing section 11 is screwed to the storage section 10, the outer side surface of the storage section 10 and the outer side surface of the upper opening / closing section 11 are roughly flush with each other, and the lower surface of the lower cylindrical section 11a abuts against the flat plate section 10a. In this embodiment, the airtightness of the storage section 10 is maintained by screwing the upper opening / closing section 11 to the storage section 10, but it is not limited to the screw type, and other opening / closing means such as a fitting type can be used as long as the airtightness can be maintained such that the protein liquid does not spill even if the storage section 10 is shaken by hand with the upper opening / closing section 11 fastened to the storage section 10.

[0036] As shown in FIG. 3, the stirring section 13 includes a coil spring 20, an inner plug 21 attached to one end of the coil spring 20, and a collision body 22 attached to the other end of the coil spring 20.

[0037] The stirring section 13 is disposed inside the storage section 10 to which the upper opening / closing section 11 is attached, and by inserting the coil spring 20 into the storage section 10 from the side of the impact body 22 and fitting the inner plug 21 into the upper end of the storage section 10, the coil spring 20 is held inside the storage section 10 with the impact body 22 spaced apart from the bottom surface of the storage section 10. The design of coil spring 20 (the pitch and the wire diameter constituting the coil spring) will be described later with reference to Figs. 10 to 12. Coil spring 20 has an upper portion fixed to the upper end of storage section 10 and hangs down inside storage section 10, while the lower portion is free to move, including vibrate and swing. Coil spring 20 can be made of a material such as iron (steel), stainless steel, titanium, titanium alloy, aluminum, or plastic. The wire constituting coil spring 20 may have various surfaces and unevenness on its surface.

[0038] The coil spring 20 is a coil spring with a constant winding diameter. The winding diameter is smaller than the horizontal size of the inside of the storage section 10, so that when a user holds the storage section 10 in his / her hand and shakes it, the coil spring 20 has a spatial space that allows it to move, including vibrate and swing. Here, vibration refers to the movement of the coil spring 20 in the direction of its central axis, and swing refers to the movement of the coil spring 20 swinging in a direction perpendicular to the direction of its central axis.

[0039] The coil spring 20 has about 7 or 8 turns in the center, which is tightly wound so that adjacent coils abut against each other in the normal state, and the multiple turns of the coils on both sides of the center have some space between adjacent coils in the normal state. The length of the coil spring 20 is preferably 50 to 70 percent of the inner height of the storage section 10. If it is too short, the stirring efficiency of the entire liquid material will be reduced. If it is too long, the freedom of movement, including vibration and swinging, will be reduced.

[0040] The coil spring 20 swings and vibrates, exerting a shearing effect on the protein powder. In addition, if the surface of the coil spring 20 has various faces and is uneven, the surface shape of the coil spring 20 also exerts a shearing effect on the protein powder. As a result, the protein powder is made finer and more uniform, and dispersion in water is promoted.

[0041] 4A and 4B are perspective views showing the appearance of the inside plug 21, with FIG. 4A being a view of the inside plug 21 seen from diagonally below, and FIG. 4B being a view of the inside plug 21 seen from diagonally above.

[0042] The center plug 21 is a cap body that can be fitted into the upper end of the storage section 10, and includes a cylindrical portion 210, a donut-shaped flange portion 211 extending radially outward from the upper end of the cylindrical portion 210, and a donut-shaped inner flat portion 212 extending radially inward from the lower end of the cylindrical portion 210.

[0043] The outer diameter of flange portion 211 is approximately the same as the outer diameter of the upper part of storage portion 10, and the outer diameter of cylindrical portion 210 is approximately the same as the inner diameter of the upper part of storage portion 10. Cylindrical portion 210 can be inserted into cylindrical portion 10b of storage portion 10, and by inserting and pushing cylindrical portion 210 into cylindrical portion 10b, the lower surface of flange portion 211 abuts against the upper end surface of storage portion 10. Therefore, downward movement of inside plug 21 is restricted by flange portion 211.

[0044] A hole 213 is formed in the center of the inner flat plate portion 212, and arc-shaped long holes 214 are formed at multiple locations on the outer periphery of the inner flat plate portion 212. The inner diameter of the hole 213 is set to be shorter than the outer diameter of the coil spring 20.

[0045] Also, a sector-shaped recess 21a is formed at a part of the corner formed by the cylindrical portion 210 and the inner flat plate portion 212. This recess 21a is formed by cutting out a part of the corner formed by the cylindrical portion 210 and the inner flat plate portion 212 in a sector shape, and this cut-out part is covered by the wall surface portion 215, the horizontal surface portion 216, and the side surface portions 217, 217. That is, the wall surface portion 215 extends vertically upward from the edge of the hole portion 213. Also, the horizontal surface portion 216 extends from the upper end portion of the wall surface portion 215 toward the upper end of the cylindrical portion 210 at the cut-out portion. Furthermore, the side surface portions 217, 217 extend from both circumferential sides of the wall surface portion 215 along both circumferential sides of the horizontal surface portion 216. The inner flat plate portion 212 and the wall surface portion 215 are perpendicular to each other, and the lower surface of the inner flat plate portion 212 and the lower surface of the wall surface portion 215 are parallel to each other.

[0046] Notches 218, 218 extending along the circumferential direction of the cylindrical portion 210 are formed in the portion of the side portion 217, 217 where it joins with the horizontal surface portion 216 and in a part of the cylindrical portion 210. According to this embodiment, the angle of the notch end of the portion of the notch 218, 218 formed in the cylindrical portion 210 with respect to the central axis of the cylindrical portion 210 is set to about 85 degrees. The portion of the notch 218 formed in the wall portion 215 has upper and lower surfaces of the notch 218, 218 slightly inclined so that the notch width narrows toward the wall portion 215. The notch width of the notch 218, 218 is set to a width that allows two revolutions of the coil spring 20 to be inserted. The lower surface of the notch 218 is flush with the upper surface of the inner flat plate portion 212.

[0047] A protrusion 219 is formed at the center of the outer periphery on the lower surface of the horizontal surface portion 216, protruding downward. As shown in FIG. 4(a), the lower portion of the protrusion 219 is formed in a sector shape with both circumferential sides formed in a semicircle when viewed from below. The outer surface of the protrusion 219 is flush with the cylindrical portion 210, the inner surface of the protrusion 219 faces the outer surface of the wall portion 215, the length from the inner surface of the protrusion 219 to the central axis of the cylindrical portion 210 is set to be slightly larger than the radius of the outer periphery of the coil spring 20, and the length from the outer surface of the wall portion 215 to the central axis of the cylindrical portion 210 is set to be slightly smaller than the radius of the outer periphery of the coil spring 20. That is, it is possible to pass the coil spring 20 between the inner surface of the protrusion 219 and the outer surface of the wall portion 215.

[0048] According to this embodiment, inside plug 21 has a shape that is line-symmetrical with respect to an imaginary plane that includes the central axis of cylindrical portion 210 and the center of protrusion 219, and two long holes 214 are formed on each side of the imaginary line.

[0049] 5A and 5B are diagrams showing the external appearance of the vicinity of the protrusion 219, with FIG. 5(a) being a side view of the vicinity of the protrusion 219 and FIG. 5(b) being a perspective view of the vicinity of the protrusion 219.

[0050] 5, the corners of the tip of protrusion 219 are chamfered. Also, on the outer periphery of the tip of protrusion 219, inclined surface 219a is formed, which slopes upward toward the central axis of cylindrical portion 210. The corners formed on the outside of inside plug 21 are also chamfered.

[0051] As shown in FIG. 3, curved plate-like protrusions 210a are formed at two corners between the horizontal surface portion 216 and the inner flat plate portion 212 on the inner surface of the cylindrical portion 210, and these two protrusions and the center of the protrusion 219 are arranged at 120 degrees with respect to the central axis of the cylindrical portion 210. The thickness from the inner surface of each of the two protrusions 210a to the outer surface of the cylindrical portion 210 is approximately the same as the thickness of the protrusion 219. Therefore, when the inner plug 21 is attached to one end of the coil spring 20, the outer periphery of the coil spring 20 inserted into the inner plug 21 can abut against the inner surfaces of the two protrusions 210a and the protrusion 219, and the coil spring 20 is prevented from moving outward more than necessary. This makes it possible to approximately align the central axis of the coil spring 20 with the central axis of the inner plug 21.

[0052] 6 is a side view showing a state in which the inside plug 21 is attached to one end of the coil spring 20. When attaching the inside plug 21 to one end of the coil spring 20, first, the inner flat plate portion 212 is opposed to one end of the coil spring 20, and one end of the coil spring 20 is opposed to one notch 218 of the inside plug 21. Then, the inside plug 21 is rotated to insert one end of the coil spring 20 into one notch 218, pass through the inner surfaces of the two protrusions 210a, insert into the other notch 218, pass through the inner surface of the protrusion 219, and insert into one notch 218. In this way, one end of the coil spring 20 is inserted into the inside plug 21 by one turn or more, and a part of the one end of the coil spring 20 is positioned below the horizontal surface portion 216 and the other part is positioned above the inner flat plate portion 212, whereby the inside plug 21 is attached to one end of the coil spring 20.

[0053] When attaching the inner plug 21 to a coil spring 20 whose end is tightly wound (for example, see FIG. 10(a)), the first turn is inserted through the notches 218, 218, and the second turn is inserted through one of the notches 218, and the end of the coil spring 20 is rotated, and the coil spring 20 is placed on the horizontal surface portion 216 without being inserted through the other notch 218. In this way, the horizontal surface portion 216 is sandwiched between the springs, and the inner plug 21 is held at one end of the coil spring 20.

[0054] When attaching the inner plug 21 to a coil spring 20 whose end is not densely wound (for example, see FIG. 10(c)), the first turn is inserted through the notches 218, 218, and the second turn is inserted through at least one of the notches 218, and the coil spring 20 may or may not be inserted through the other notch 218, and may even be placed on the horizontal surface portion 216. In this way, the coil spring 20 abuts against the upper and lower surfaces of one of the notches 218 in a slightly compressed state, whereby the coil spring 20 engages with the notch 218, and the inner plug 21 is held at one end of the coil spring 20.

[0055] 7A and 7B are perspective views showing the external appearance of the impactor 22, with FIG. 7A being a view of the impactor 22 seen from diagonally above, and FIG. 7B being a view of the impactor 22 seen from diagonally below.

[0056] The impact body 22 includes a cylindrical portion 220 and a donut-shaped inner flat plate portion 222 extending radially inward from the upper end of the cylindrical portion 220 .

[0057] The outer diameter of the cylindrical portion 220 is shorter than the inner diameter of the cylindrical portion 220 of the inside plug 21 , and the inner diameter of the cylindrical portion 220 is set to be approximately the same as the outer diameter of the coil spring 20 .

[0058] A hole 223 is formed in the center of the inner flat plate portion 222, and arc-shaped long holes 224 are formed in multiple locations on the outer periphery of the inner flat plate portion 222. The inner diameter of the hole 223 is set to be shorter than the outer diameter of the coil spring 20. Seven long holes 224 are formed at equal intervals.

[0059] Also, a sector-shaped recess 22a is formed at a part of the corner formed by the cylindrical portion 220 and the inner flat plate portion 222. This recess 22a is formed by cutting out a part of the corner formed by the cylindrical portion 220 and the inner flat plate portion 222 in a sector shape, and this cut-out part is covered by the wall surface portion 225, the horizontal surface portion 226, and the side surface portions 227, 227. That is, the wall surface portion 225 extends vertically downward from the edge of the hole portion 223. Also, the horizontal surface portion 226 extends from the lower end of the wall surface portion 225 toward the lower end of the cylindrical portion 220 at the cut-out part. Furthermore, the side surface portions 227, 227 extend from both circumferential sides of the wall surface portion 225 along both circumferential sides of the horizontal surface portion 226. The inner flat plate portion 222 and the wall surface portion 225 are perpendicular, and the upper surface of the inner flat plate portion 222 and the upper surface of the wall surface portion 225 are parallel.

[0060] Notches 228, 228 extending along the circumferential direction of the cylindrical portion 220 are formed in the portion of the base of the side portion 227, 227 with the horizontal surface portion 226 and in a portion of the cylindrical portion 220. The lower surface of the notch 228 and the upper surface of the horizontal surface portion 226 are flush with each other. According to this embodiment, the angle of the notch end of the notch 228, 228 with respect to the central axis of the cylindrical portion 220 is set to about 89 degrees. The portion of the notch 228 formed in the wall surface portion 225 has upper and lower surfaces of the notch 228, 228 slightly inclined so that the notch width narrows toward the wall surface portion 225. The notch width of the notch 228, 228 is set to a width that allows two revolutions of the coil spring 20 to be inserted. The upper surface of the notch 228 is flush with the lower surface of the inner flat plate portion 222.

[0061] According to this embodiment, the collision body 22 has a shape that is line-symmetrical with respect to an imaginary plane that includes the central axis of the cylindrical portion 220 and the center of the horizontal surface portion 226 .

[0062] When attaching the impact body 22 to the other end of the coil spring 20, first, the inner flat plate portion 222 is opposed to the other end of the coil spring 20, and the other end of the coil spring 20 is opposed to one of the notches 228 of the impact body 22. Then, the impact body 22 is rotated, and the other end of the coil spring 20 is inserted into one of the notches 228, moved along the inner surface of the cylindrical portion 220, inserted into the other notch 228, and moved along the inner surface of the cylindrical portion 220. In this manner, the impact body 22 is inserted into the other end of the coil spring 20 by about 2.5 revolutions, and a part of the other end of the coil spring 20 is positioned above the inner flat plate portion 222 and the other part is positioned below the inner flat plate portion 222, whereby the impact body 22 is attached to the other end of the coil spring 20. In addition, when the other end of the coil spring 20 is inserted through the collision body 22 for at least one turn, the tip of the other end of the coil spring 20 may be disposed on the lower surface of the horizontal surface portion 226 without being inserted through the notch 228 from the second turn onward. Furthermore, when attaching the collision body 22 to a coil spring 20 whose end is not densely wound (for example, see FIG. 10(c)), the first turn of the coil spring 20 is inserted through the notches 228, 228, and the second turn of the coil spring 20 is inserted through at least one of the notches 228, and the coil spring 20 may or may not be inserted through the other notch 228, and may even be placed on the lower surface of the horizontal surface portion 226. As a result, the coil spring 20 abuts against the upper and lower surfaces of one of the notches 228 in a slightly compressed state, so that the coil spring 20 engages with the notch 218, and the collision body 22 is attached to the other end of the coil spring 20.

[0063] Fig. 8 is a perspective view showing the appearance of a modified example of the collision body 22, Fig. 8(a) is a view of the modified example of the collision body 22 viewed from diagonally above, and Fig. 8(b) is a view of the modified example of the collision body 22 viewed from diagonally below. Fig. 9 is a view of the collision body 22 of Fig. 8(b) viewed from below.

[0064] The modified example of the impactor 22 shown in FIG. 8 is obtained by further forming a plurality of bulging portions 222a and a plurality of small projections 220a on the impactor 22 shown in FIG. The bulging portion 222a bulges toward the central axis of the cylindrical portion 220 from multiple locations (seven locations according to this embodiment) on the inner end surface of the inner flat plate portion 222 that forms the hole portion 223. The bulging portion 222a bulges slightly in a convex arc shape, and is formed in a portion of the inner end surface of the inner flat plate portion 222 that is closer to the central axis of the cylindrical portion 220 than the long hole 224. As shown in FIG. 9, the small protrusion 220a has a substantially elliptical shape when viewed from below, and bulges downward from multiple locations (eight locations according to this embodiment) on the end surface of the lower portion of the cylindrical portion 220. The small protrusion 220a bulges slightly in a convex arc shape, and the eight small protrusions 220a are arranged such that adjacent small protrusions 220a, 220a are spaced at 45 degrees from each other with respect to the central axis of the cylindrical portion 220.

[0065] The method of attaching the modified impactor 22 shown in FIG. 8 to the coil spring 20 is the same as that of the impactor 22 shown in FIG. 7, and therefore a description thereof will be omitted.

[0066] [Pitch density of coil springs] Figure 10 is a diagram detailing the pitch density of the coil spring and the wire diameter that constitutes the coil spring. Here, the material used is stainless steel SUS304. The coil spring shown in Figure 10(a) has a wire diameter of 1.4 mm and an outer diameter (winding diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 108.5 mm. The length of the densely wound part at one end (6 coils densely) with no gaps is 8.4 mm. The length of the densely wound part at the center (7 coils densely) with no gaps is 9.8 mm. The length of the densely wound part at the other end (2 coils densely) with no gaps is 2.8 mm. The length of the part between the densely wound part at one end and the densely wound part at the center (part with sparse pitch) is 38.5 mm (18 turns x 1.4 mm + 19 gaps x 0.7 mm = 25.2 mm + 13.3 mm). The length of the portion between the densely wound portion at the other end and the densely wound portion in the center (the portion with sparse pitch) is 49.0 mm (23 turns x 1.4 mm + 24 gaps x 0.7 mm = 32.2 mm + 16.8 mm).

[0067] The coil spring shown in Figure 10(b) has a wire diameter of 1.4 mm and an outer diameter (winding diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 108.5 mm. The length of the densely wound part at one end (6 coils) with no gaps is 8.4 mm. The length of the densely wound part at the center (7 coils) with no gaps is 9.8 mm. The length of the densely wound part at the other end (2 coils) with no gaps is 2.8 mm. The length of the part between the densely wound part at one end and the densely wound part at the center (part with sparse pitch) is 40.4 mm (18 turns x 1.4 mm + 19 gaps x 0.8 mm = 25.2 mm + 15.2 mm). The length of the portion between the densely wound portion at the other end and the densely wound portion in the center (the portion with sparse pitch) is 47.0 mm (21 turns x 1.4 mm + 22 gaps x 0.8 mm = 29.4 mm + 17.6 mm).

[0068] The coil spring shown in Figure 10(c) has a wire diameter of 1.4 mm and an outer diameter (wound diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 109.6 mm. There are no densely wound parts at either end, as in the coil springs shown in Figures 10(a) and (b). The length of the densely wound part (8 coils) with no space in the center is 11.2 mm. The length of the part between one end and the densely wound part in the center (part with sparse pitch) is 49.2 mm (22 turns x 1.4 mm + 23 spaces x 0.8 mm = 30.8 mm + 18.4 mm). The length of the part between the other end and the densely wound part in the center (part with sparse pitch) is 49.2 mm (22 turns x 1.4 mm + 23 spaces x 0.8 mm = 30.8 mm + 18.4 mm).

[0069] The coil spring shown in Figure 11(a) has a wire diameter of 1.3 mm and an outer diameter (winding diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 105.1 mm. The length of the densely wound part at one end (6 coils) with no gaps is 7.8 mm. The length of the densely wound part at the center (7 coils) with no gaps is 9.1 mm. The length of the densely wound part at the other end (2 coils) with no gaps is 2.6 mm. The length of the part between the densely wound part at one end and the densely wound part at the center (part with sparse pitch) is 38.6 mm (18 turns x 1.3 mm + 19 gaps x 0.8 mm = 23.4 mm + 15.2 mm). The length of the portion between the densely wound portion at the other end and the densely wound portion in the center (the portion with sparse pitch) is 47.0 mm (23 turns x 1.3 mm + 23 gaps x 0.8 mm = 28.6 mm + 18.4 mm).

[0070] The coil spring shown in Figure 11(b) has a wire diameter of 1.3 mm and an outer diameter (winding diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 105.1 mm. The length of the densely wound part at one end (6 coils) with no gaps is 7.8 mm. The length of the densely wound part at the center (7 coils) with no gaps is 9.1 mm. The length of the densely wound part at the other end (2 coils) with no gaps is 2.6 mm. The length of the part between the densely wound part at one end and the densely wound part at the center (part with sparse pitch) is 42.8 mm (18 turns x 1.3 mm + 21 gaps x 0.8 mm = 26.0 mm + 16.8 mm). The length of the section between the densely wound part at the other end and the densely wound part in the center (the section with sparse pitch) is 42.8 mm (18 turns x 1.3 mm + 21 gaps x 0.8 mm = 26.0 mm + 16.8 mm).

[0071] The coil spring shown in Figure 12(a) has a wire diameter of 1.3 mm and an outer diameter (winding diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 106.2 mm. The length of the densely wound part at one end (6 coils) with no gaps is 7.8 mm. The length of the densely wound part at the center (8 coils) with no gaps is 10.4 mm. The length of the densely wound part at the other end (2 coils) with no gaps is 2.6 mm. The length of the part between the densely wound part at one end and the densely wound part at the center (part with sparse pitch) is 38.7 mm (19 turns x 1.3 mm + 20 gaps x 0.7 mm = 24.7 mm + 14.0 mm). The length of the portion between the densely wound portion at the other end and the densely wound portion in the center (the portion with sparse pitch) is 46.7 mm (23 turns x 1.3 mm + 24 gaps x 0.7 mm = 29.9 mm + 16.8 mm).

[0072] The coil spring shown in Figure 12(b) has a wire diameter of 1.3 mm and an outer diameter (winding diameter) of 36 mm. The natural length of the spring (length when laid horizontally) is 106.2 mm. The length of the densely wound part at one end (6 coils) with no gaps is 7.8 mm. The length of the densely wound part at the center (8 coils) with no gaps is 10.4 mm. The length of the densely wound part at the other end (2 coils) with no gaps is 2.6 mm. The length of the part between the densely wound part at one end and the densely wound part at the center (part with sparse pitch) is 42.7 mm (21 turns x 1.3 mm + 22 gaps x 0.7 mm = 27.3 mm + 15.4 mm). The length of the portion between the densely wound portion at the other end and the densely wound portion in the center (the portion with sparse pitch) is 42.7 mm (21 turns x 1.3 mm + 22 gaps x 0.7 mm = 27.3 mm + 15.4 mm).

[0073] When mixing protein powder with water, a spring wire diameter of 1.3 to 1.4 mm is suitable.

[0074] The natural length of the spring is suitably 100 to 110 mm, which corresponds to 60% to 70% of the length of the storage section 10.

[0075] The spring pitch is preferably 7 to 8 tightly wound (closely wound) turns in the center, with a gap of 0.7 to 0.8 mm between the spring wires on both sides of the center.

[0076] Since the coil spring 20 hangs down from the upper end of the storage unit 10, when the storage unit 10 is swung up and down, the coil spring 20 moves up and down (vibrates) within the storage unit 10. This gives momentum to the movement of the coil spring, making it easier for the user to swing the stirring device 1.

[0077] In addition, the coil spring 20 has a densely wound central portion and sparsely wound both sides of the central portion, so that the upper sparse portion expands and contracts more than the central portion, and the lower sparse portion expands and contracts less than the central portion. In addition, when the impact body 22 hits the bottom of the storage section 10, the densely wound central portion moves downward due to inertia, so that the upper sparse portion expands more than the central portion, and the lower sparse portion contracts more than the central portion. Here, the protein powder has a variation in grain size, and the larger grains move downward when mixed with water. This makes it easier to apply vibrations of the lower sparse portion of the coil spring 20 to the larger grains. In addition, when the impact body 22 hits the bottom of the storage section 10, the upper sparse portion expands more than the central portion, so that the lower part of the coil spring 20 returns to the upper position more easily than a coil spring 20 whose central portion is not densely wound. This makes it easier for the user to synchronize the vibration of the coil spring 20 with the action of shaking the stirrer 1 once, so that the stirrer 1 can be shaken more rhythmically than if a coil spring 20 with a sparsely wound central portion were used.

[0078] [Mechanism of action] The action and mechanism of the stirring device 1 of this embodiment can be explained from two perspectives. First, the coil spring vibrates and swings to stir the liquid, shearing and breaking down lumps of oil, particles, and sediment into smaller pieces, which are then dispersed into the liquid.

[0079] Secondly, the mechanism of action may be due to harmonic resonance (scaling resonance) of sound. When a liquid material is stored in the storage section 10 of the stirring device 1, the upper opening / closing section 11 to which the cap section 12 is attached is closed, and a user holds the device in his / her hand and shakes it, an impact is applied to the coil spring 20. The impact causes the coil spring 20 to vibrate and swing. As the vibration and swing are transmitted, sound is generated (not limited to sounds in the audible range, but also including the possibility of sounds lower or higher than the audible range). If the user shakes the stirring device 1 multiple times, this sound also continues to be generated.

[0080] On the other hand, clumps of protein powder particles and sediment mixed in the liquid are thought to exist as molecular clusters. When these collide with each other, sound is also produced.

[0081] The sound generated by the vibration and swinging of the coil spring and the sound generated when clusters of molecules mixed in the liquid collide with each other can have a harmonic relationship. The harmonic of the sound generated by the vibration and swinging of the spring causes harmonic resonance (scaling resonance) when clusters of molecules mixed in the liquid collide with each other. This promotes mixing and stirring of the liquid, and thus the dispersion of oil, particles, sediments, etc.

[0082] Here, scaling resonance is a phenomenon in which resonance occurs at harmonics (overtones) several tens of octaves above. This is a concept used in "Music of Proteins" (Yoichi Fukagawa, Chikuma Primer Books).

[0083] Although resonance and sympathetic vibration are similar concepts, in this specification they are considered separately. For example, when two strings are fixed to the same metal frame (solid), and one of them vibrates, the other also vibrates. In this case, the vibration is transmitted through the solid body of the wooden metal frame, so it is resonance. On the other hand, when sound travels through a fluid such as water or air, resulting in vibration, it is resonance.

[0084] In the case of the stirring device 1 of this embodiment, the vibration is transmitted from the coil spring 20 to the molecules of the grains, sediments, etc. through the fluid (liquid). Therefore, it should be called resonance. It is considered that harmonic resonance or scaling resonance of sound is functioning.

[0085] In the agitator 1 of this embodiment, when the macro behavior of the liquid is considered, the liquid moves when the user shakes it, impacting the coil spring and vibrating and rocking the coil spring. On the other hand, when the micro behavior of the liquid is considered, clusters (lumps of molecules stuck together) of particles, sediments, etc. contained in the liquid are subjected to a force that reduces the size of the clusters due to harmonic resonance or scaling resonance. This causes a shear effect, which reduces the clusters of particles, sediments, etc., and results in uniform mixing. This makes it possible for the agitator 1 of this embodiment to produce a protein liquid that is more pleasant to the touch.

[0086] In the stirring device 1 of this embodiment, since the center of the coil spring 20 is dense, when the stirring device 1 is swung up and down, the upper part of the coil spring 20 from the center to the inner plug 21 expands and contracts greatly, and the lower part of the coil spring 20 from the center to the collision body 22 expands and contracts less than the upper part. Therefore, at the moment when the collision body 22 collides with the bottom surface of the storage section 10, the upper part of the coil spring 20 expands, while the lower part of the coil spring 20 contracts. As a result, the impact when the collision body 22 collides with the bottom surface of the storage section 10 is absorbed by the lower part of the coil spring 20, so that it is possible to reduce the collision sound. In particular, as shown in FIG. 9, if the collision body 22 has a small protrusion 220a, the small protrusion 220a collides with the bottom surface of the storage section 10, so that the area of ​​the collision body 22 that collides with the bottom surface of the storage section 10 is reduced, and it is possible to reduce the collision sound. Moreover, the lower part of the coil spring 20 is more likely to return upward, making it easier for the user to synchronize the action of shaking the stirrer 1 with the vibration of the coil spring 20, so that the stirrer 1 can be shaken rhythmically.

[0087] In the agitator 1 of this embodiment, when the agitator 1 is swung up and down, water pressure can be applied to the bottom surface of the storage section 10 by the end surface of the cylindrical section 220, the lower surface of the inner flat plate section 222, and the lower surface of the horizontal surface section 226 of the collision body 22, and the precipitate of the protein powder near the bottom surface of the storage section 10 can be dispersed. Moreover, since the lower part of the coil spring 20 is present near the bottom surface of the storage section 10 where the precipitate is dispersed, it is possible to position many winding parts of the coil spring 20 near the dispersed precipitate, and the vibration of the coil spring 20 can be applied efficiently to the precipitate. In particular, as shown in Figures 8 and 9, if the collision body 22 has a bulging section 222a, the area of ​​the lower surface of the inner flat plate section 222 can be increased, so that water pressure can be applied more efficiently to the bottom surface of the storage section 10, and the precipitate near the bottom surface of the storage section 10 can be dispersed. In addition, since the long hole 224 is formed in the inner flat plate portion 222, when the impact body 22 moves up and down, sediment near the bottom surface of the storage portion 10 passes through the long hole 224 and easily moves to the lower portion of the coil spring 20.

[0088] In the stirrer 1 of this embodiment, the inner plug 21 also has an elongated hole 214 formed in the inner flat plate portion 212, so that the liquid in the storage section 10 can easily move through the elongated hole 214 to the upper portion of the storage section 10. This makes it easy to move the liquid to the upper cylindrical portion 11c of the upper opening / closing portion 11, so that when the stirrer 1 is shaken up and down, the liquid in the storage section 10 can be moved up and down, promoting stirring.

[0089] In the agitator 1 of this embodiment, the inside plug 21 is formed with a protrusion 219 facing the wall surface portion 215, and the protrusion 219 serves as a guide that leads one end of the coil spring 20 to the notch 218, making it easy to attach the coil spring 20 to the inside plug 21. Moreover, since an inclined surface 219a is formed on the outer circumferential portion of the tip of the protrusion 219, when the cylindrical portion 210 of the inside plug 21 is inserted into the upper end portion of the storage portion 10, the inclined surface 219a comes into contact with the opening edge portion of the storage portion 10, making it possible to smoothly insert the inside plug 21 into the upper end portion of the storage portion 10 without the protrusion 219 becoming an obstacle.

[0090] In the stirring device 1 of this embodiment, the portion formed on the wall surface portion 215 in the notch 218 of the inside plug 20 is inclined so that the notch width narrows toward the wall surface portion 215, so that when the coil spring 20 of two turns is inserted into the notch 218, the coil spring 20 of two turns can be engaged with the notch 218. This makes it possible to stabilize the inside plug 21 attached to one end of the coil spring 20. Similarly, the portion formed on the wall surface portion 225 in the notch 228 of the impact body 22 is inclined so that the notch width narrows toward the wall surface portion 225, so that when the coil spring 20 of two turns is inserted into the notch 228, the coil spring 20 of two turns can be engaged with the notch 228. This makes it possible to stabilize the impact body 22 attached to the other end of the coil spring 20.

[0091] [Sieve permeability test] Next, a protein powder sieving test using the stirring device 1 of this embodiment will be described. In this test, water and protein powder are placed in the storage section 10 of the agitator 1, the agitator 1 is shaken to mix, and the mixture is passed through the meshes of a sieve. The time it takes for the powder to pass through the meshes and the weight of the protein powder adhering to the meshes are then measured. In other words, the shorter the time it takes for the powder to pass through the meshes and the smaller the weight of the protein powder adhering to the meshes, the more fine the particles of the protein powder in the mixture are made by the agitation.

[0092] <Preparations> In addition to the stirring device 1, the following equipment is required for the protein powder sieve test: Protein powder: 10g, Water: 100ml, Powder sieve: Wire diameter 0.16 mm, mesh size 0.50 mm square, Timer, scale, Prepare the following.

[0093] <Test Method> First, the weight of the flour sieve is measured in advance. Water and protein powder are placed in the container 10, and the container 10 is shaken 10 times to mix. After that, the protein liquid in the container 10 is transferred to a powder sieve, and the time it takes for the protein liquid to pass through the powder sieve is measured. Next, the powder sieve through which the protein liquid has passed is dried and then weighed, and the weight of the powder sieve is calculated by calculating the difference between the weight of the powder sieve through which the protein liquid has passed and the weight of the powder sieve before the protein liquid has passed, thereby obtaining the weight of the protein powder adhering to the meshes of the sieve.

[0094] <Test Results> The above test was carried out in two ways: with the coil spring 20 attached to the storage section 10, and without the coil spring 20 attached to the storage section 10. Fig. 13 is an explanatory diagram showing a comparison of the weight of protein powder adhering to the sieve mesh when the coil spring 20 is attached to the storage section 10 and when it is not attached, and Fig. 14 is an explanatory diagram showing a comparison of the powder sieving time when the coil spring 20 is attached to the storage section 10 and when it is not attached. As a result of the above test, the following values ​​were obtained as shown in Figs. 13 and 14.

[0095] When the coil spring 20 is not attached to the storage section 10 Weight of the flour sieve after passing the protein liquid: 23.5606g (A) Weight of the flour sieve before passing the protein liquid through it: 22.8644g (B) Weight of protein powder adhering to the sieve mesh: (A)-(B)=0.6962g Flour sifting time: 13.26 seconds

[0096] When the coil spring 20 is attached to the storage section 10, Weight of the flour sieve after the protein liquid has passed through it: 23.0224g (A) Weight of the flour sieve before passing the protein liquid through it: 22.8229g (B) Weight of protein powder adhering to the sieve mesh: (A)-(B)=0.1995g Flour sifting time: 6.04 seconds

[0097] 14 shows photographs showing the sieve surface after the stirred protein liquid is passed through with the coil spring 20 attached to the storage section 10, and the sieve surface after the stirred protein liquid is passed through without the coil spring 20 attached to the storage section 10. As is clear from FIG. 14, the amount of protein powder adhering to the powder sieve through which the stirred protein liquid is passed through with the coil spring 20 attached to the storage section 10 is less than that of the powder sieve through which the stirred protein liquid is passed through without the coil spring 20 attached (with the coil spring 20 removed).

[0098] As described above, by attaching the coil spring 20 to the storage section 10 and stirring, the time required for the protein powder to pass through the sieve mesh is reduced by more than half, and the weight of the protein powder adhering to the sieve mesh is reduced to less than one-third, compared to the case where the coil spring 20 is not attached to the storage section 10. Therefore, by attaching the coil spring 20 to the storage section 10 and stirring, it is possible to break down the particles of the protein powder in the protein liquid. This makes it possible to provide a protein liquid with reduced powderiness and good texture. By removing the cap section 12, the user can drink the protein liquid in the storage section 10 from the upper cylindrical section 11c of the upper opening / closing section 11.

[0099] Although the embodiment of the present invention has been described above, the embodiment of the present invention is not limited to the above. For example, according to the above-mentioned embodiment, the protein liquid is made by mixing protein powder with water as an example, but the protein powder is not limited to the protein powder, and the powder may be a soft drink powder. Furthermore, it may be used to drink powdered medicine. Even if it is a tablet, it may be put in the storage section 10 and dissolved in water to a certain extent, and then the stirring device 1 may be shaken up and down and left and right. The embodiment of the present invention is not limited to powder materials, and can also be used to mix liquid materials with water. [Explanation of symbols]

[0100] 1 Stirring device 10 Storage area 10a flat plate part 10b Cylindrical part 11 Upper opening and closing part 11a Lower cylindrical part 11b Flat plate part 11c Upper cylindrical part 12 Cap section 13 Stirring section 20 Coil spring 21 Inner stopper 21a Depression 22 Collider 22a Depression 210 Cylindrical part 210a Protrusion 211 Flange part 212 Inner flat part 213 Hole part 214 Slot 215 Wall part 216 Horizontal part 217 Side part 218 Notch 219 Protrusion part 219a Inclined surface 220 Cylindrical part 220a Small protrusion 222 Inner flat part 222a Bulging part 223 Hole part 224 Slot 225 Wall part 226 Horizontal part 227 Side part 228 Notch

Claims

1. 1. A stirring device that stores a substance to be dispersed and a liquid, and generates a liquid body by shaking the substance to be dispersed in the liquid, a vertically extending storage section for storing the object to be dispersed and the liquid; an upper opening / closing section provided at an upper portion of the storage section for putting in the object to be dispersed and the liquid and discharging the liquid material; a coil spring that is stored inside the storage portion, has a constant winding diameter, a dense pitch in a center portion, and a sparse pitch on both sides of the center portion; an inner plug attached to one end of the coil spring and disposed in an upper portion of the storage section to cause the coil spring to hang down inside the storage section; and a collision body attached to the other end of the coil spring that abuts against the bottom surface of the storage section when the storage section is shaken to expand the coil spring.

2. The impact body is a cylindrical portion into which an end of the coil spring can be inserted; a donut-shaped flat plate portion extending from an upper end of the cylindrical portion toward a central axis of the cylindrical portion; a sector-shaped recess formed at a corner between the cylindrical portion and the flat plate portion, The dent is, a wall portion extending perpendicularly from a portion of the hole along a central axis; a horizontal surface portion extending from an end of the wall portion to the cylindrical portion; A pair of side surfaces extending from both circumferential sides of the wall surface portion along both circumferential sides of the horizontal surface portion; a cutout portion formed by cutting out a base portion of the pair of side surface portions where the pair of side surface portions are joined to the horizontal surface portion and the cylindrical portion, 2. The stirring device according to claim 1, wherein the notch has a width that allows an end of the coil spring to be inserted therethrough.

3. 3. The stirring device according to claim 2, wherein a plurality of protrusions are formed on a lower end surface of said cylindrical portion so as to protrude downward.

4. 3. The stirring device according to claim 2, wherein a plurality of bulges are formed on an inner end face of said flat plate portion, said bulging portions bulging toward a central axis of said cylindrical portion.

5. 5. The stirring device according to claim 2, 3 or 4, wherein a plurality of holes are formed in the flat surface of the flat plate portion.

6. The inside plug is a cylindrical inner plug portion that can be inserted into an upper end portion of the storage portion and into which an end portion of the coil spring can be inserted; a flange portion extending outward from an upper end of the inner plug cylindrical portion; a donut-shaped center plug flat portion extending from a lower end of the center plug cylindrical portion toward a central axis of the center plug cylindrical portion; a sector-shaped center plug recess formed at a corner between the center plug cylindrical portion and the center plug flat portion, The dent in the inner plug is, a plug wall portion extending vertically from a portion of the hole along the central axis; a horizontal surface portion of the inner plug extending from an end of the wall portion of the inner plug to the cylindrical portion of the inner plug; A pair of inside plug side portions extending from both circumferential sides of the inside plug wall surface portion along both circumferential sides of the inside plug horizontal surface portion; a center plug notch portion formed by cutting out a base portion of the pair of center plug side portions with respect to the center plug horizontal surface portion and the center plug cylindrical portion, 2. The stirring device according to claim 1, wherein the inner plug cutout portion has a width that allows an end of the coil spring to be inserted therethrough.

7. A protrusion portion is formed on the horizontal surface portion of the inside plug so as to face the wall surface portion of the inside plug, 7. The stirring device according to claim 6, wherein an end of the coil spring can be inserted between an outer surface of the inner plug wall portion and an inner surface of the protrusion portion.

8. 8. The stirring device according to claim 7, wherein an inclined surface is formed on the outer periphery of the tip of the protrusion, the inclined surface inclining upward toward the central axis of the cylindrical portion of the inner plug.

9. 9. The stirring device according to claim 6, 7 or 8, wherein a plurality of holes are formed in the flat surface of the inner plug flat portion.

Images