Beverage illumination device

Abstract

To provide a beverage illumination device that is capable of reducing height to achieve compactness, allowing for easy attachment and detachment, and enhancing retention force.SOLUTION: A beverage illumination device according to one embodiment is a beverage illumination device 1 that is attached to a beverage container containing a beverage to emit light onto the beverage through the beverage container. The beverage illumination device 1 includes: a cylindrical part 3 having an opening 3b into which the beverage container is inserted; a light-emitting element 6 that emits light onto the beverage container inserted into the cylindrical part 3 through the opening 3b; and a projection 4 that protrudes from the inner circumferential surface 3f of the cylindrical part 3 and fixes the beverage container to the cylindrical part 3 by coming into contact with the outer circumferential surface of the beverage container inserted into the cylindrical part 3 via the opening 3b.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a beverage light emitting device that irradiates light onto a beverage. [Background technology]

[0002] Patent Document 1 describes a coaster with a light source on which a transparent container containing a sparkling beverage containing a grain hydrolyzate is placed. The coaster with a light source includes a base and an intermediate member connected to the upper part of the base. The intermediate member has a connecting part connected to the base, a transparent part located on the upper part of the connecting part, and a translucent part located on the upper part of the transparent part. The base has a mounting part having a concave shape, a light source placed inside the mounting part, and a power cable connected to the light source, and the power cable is drawn out from a drawer formed in the mounting part.

[0003] Furthermore, the coaster with the light source includes a control unit that controls the light from the light source and a remote control unit for remotely controlling the control unit. The light source irradiates light onto a transparent container that contains the sparkling beverage containing the grain hydrolysate, thereby lighting up the sparkling beverage containing the grain hydrolysate.

[0004] Patent Document 2 describes a glass light-emitting device. The glass light-emitting device includes a main body having a glass-accommodating recess formed on the upper surface side, and a hollow cylindrical section located on the lower surface side of the main body. A battery storage section for storing a battery is formed adjacent to the hollow cylindrical section. The hollow cylindrical section has a hollow portion, and a lamp is inserted into the hollow portion from the bottom recess side and the lamp is held in the hollow portion. A bottom cover that covers the bottom recess is rotatably attached to the bottom recess.

[0005] The bottom periphery of the glass elastically fits into the recess of the main body. The outer periphery of the recess has multiple U-shaped notches formed at equal intervals, so that when the bottom periphery of the glass is inserted, the peripheral wall of the recess elastically deforms to hold the glass. The lamp irradiates light from the bottom of the held glass. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2015-47186 A [Patent Document 2] Japanese Patent Application Publication No. 11-252 Summary of the Invention [Problem to be solved by the invention]

[0007] In the above-mentioned glass light emitting device, the bottom cover is rotatably attached to the bottom recess where the lamp is inserted. This glass light emitting device is composed of multiple parts, so the structure is complicated and large. The main body of this glass light emitting device has a storage recess, and the peripheral wall of the storage recess has a cut-out formed therein and elastically deforms to hold the glass.

[0008] Therefore, it is necessary to form a cut in the peripheral wall, which makes the height of the glass light emitting device high. If the height of the glass light emitting device is high, it is difficult to attach and detach it from the glass, and it may not look good when attached to the glass. Furthermore, in this glass light emitting device, the glass is held by the elastic deformation of the peripheral wall, so there is room for improvement in terms of holding force.

[0009] An object of the present disclosure is to provide a beverage lighting device that can be made compact by reducing the height, can be easily attached and detached, and has high holding power. [Means for solving the problem]

[0010] The beverage light emitting device according to the present disclosure is (1) a beverage light emitting device that is attached to a beverage container that contains a beverage and irradiates light onto the beverage through the beverage container. The beverage light emitting device includes a cylindrical part having an opening into which the beverage container is inserted, an irradiating element that irradiates light onto the beverage container inserted into the interior of the cylindrical part from the opening, and a protrusion that protrudes from the inner peripheral surface of the cylindrical part and fixes the beverage container to the cylindrical part by abutting against the outer peripheral surface of the beverage container inserted into the interior of the cylindrical part from the opening.

[0011] This beverage light-emitting device has a cylindrical part with an opening, and an illuminating element irradiates light onto a beverage container inserted into the cylindrical part through the opening. Thus, the beverage container containing the beverage is irradiated with light, so that the beverage drinker can enjoy watching the illuminated beverage. In this beverage light-emitting device, the beverage container is inserted into the cylindrical part through the opening, so that the beverage light-emitting device is attached to the beverage container. Thus, this beverage light-emitting device can be made into a single component, so that the configuration can be simplified and miniaturization can be achieved. This beverage light-emitting device has a convex part protruding from the inner peripheral surface of the cylindrical part, and the convex part abuts against the outer peripheral surface of the beverage container inserted into the cylindrical part. The convex part abuts against the outer peripheral surface of the beverage container, and the cylindrical part is fixed to the beverage container, so that the beverage light-emitting device is attached to the beverage container. The convex part protruding from the inner peripheral surface abuts against the outer peripheral surface of the beverage container, so that the formation of the above-mentioned notch or the like is unnecessary, so that the height of the beverage light-emitting device can be reduced and the appearance of the beverage light-emitting device when attached can be improved. By reducing the height of the beverage light emitting device, it is easy to attach and detach the beverage light emitting device to and from the beverage container. Furthermore, by the convex portion abutting against the outer circumferential surface of the beverage container inserted inside the cylindrical portion, the holding force to the beverage container can be increased.

[0012] (2) In the above (1), the beverage light-emitting device may include a plurality of protrusions arranged along the circumferential direction of the cylindrical portion. In this case, the plurality of protrusions arranged along the circumferential direction of the cylindrical portion abut against the outer circumferential surface of the beverage container, thereby further increasing the holding force of the beverage light-emitting device relative to the beverage container.

[0013] (3) In the above (1) or (2), the cylindrical portion and the protruding portion may be made of a flexible material. In this case, the cylindrical portion and the protruding portion can be deformed due to their flexibility when the beverage light-emitting device is attached to the beverage container, so that the beverage light-emitting device can be more easily attached to and detached from the beverage container.

[0014] (4) In any of the above (1) to (3), the convex portion may have a flat top surface that contacts the outer circumferential surface of the beverage container. In this case, the flat top surface of the convex portion contacts the outer circumferential surface of the beverage container, thereby increasing the area of ​​the convex portion that contacts the beverage container. Therefore, the holding force of the beverage light-emitting device to the beverage container can be further increased.

[0015] (5) In any of the above (1) to (4), the beverage lighting device may include a substrate on which an irradiation element is mounted. The cylindrical portion may have a bottom portion in which a through hole is formed penetrating the cylindrical portion in an axial direction, which is a direction in which the axis of the cylindrical portion extends. The substrate may be fixed to the bottom portion with the irradiation element inserted in the through hole. In this case, a substrate on which an irradiation element is mounted is provided, and the substrate is fixed to the bottom portion with the irradiation element inserted in the through hole in the bottom portion of the cylindrical portion. By mounting the irradiation element on the substrate and inserting it into the through hole, the height of the beverage lighting device can be further reduced.

[0016] (6) In the above (5), the beverage light-emitting device may include a battery that is mounted on the substrate and inserted into the through-hole. The illumination element may obtain power from the battery and emit light. In this case, the beverage light-emitting device can be battery-powered, further simplifying the configuration. Furthermore, by inserting the battery into the through-hole in the bottom, the height of the beverage light-emitting device can be reduced.

[0017] (7) In any of the above (1) to (6), the beverage light emitting device may include a timer that stops the light emission a certain time after the emitting element starts emitting light. In this case, the timer can be set to a time to stop the light emission depending on the state of the dispensed beverage. As a specific example, the time to stop the light emission can be set to the time from when the beer-taste beverage is dispensed into the beverage container to when the frosty mist disappears. Effect of the Invention

[0018] According to the present disclosure, it is possible to reduce the height and achieve a compact size, to facilitate attachment and detachment, and to increase the holding power. [Brief description of the drawings]

[0019] [Figure 1] 1 is a side view showing a beverage light emitting device and a beverage container according to an embodiment; [Diagram 2] 1 is a perspective view showing a beverage lighting device according to an embodiment; [Diagram 3] FIG. 1 is a plan view showing a beverage lighting device according to an embodiment. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5] 1 is a flowchart illustrating an example of steps of a beverage serving method using a beverage lighting device according to an embodiment. [Figure 6] 13 is a cross-sectional view showing a beverage light emitting device according to a modified example. FIG. [Figure 7] 13(a) and (b) are plan views showing a beverage lighting device according to a further modified example. [Figure 8] 10(a) is a perspective view showing a beverage light emitting device according to a second embodiment, and (b) is a plan view showing the beverage light emitting device according to the second embodiment. [Figure 9] 13A is a perspective view showing a beverage light emitting device according to a second embodiment in an upside-down state, and FIG.13B is a bottom view showing the beverage light emitting device according to the second embodiment. [Figure 10] 10(a) is a perspective view showing an example of a substrate and an illuminating element of a beverage lighting device according to a second embodiment, and (b) is a cross-sectional view showing a state in which the substrate of (a) is attached to the beverage lighting device. [Figure 11] 13(a) is a perspective view showing a beverage light emitting device according to a third embodiment, and (b) is a plan view showing the beverage light emitting device according to the third embodiment. [Figure 12] 13A is a perspective view showing a beverage light emitting device according to a third embodiment in an upside-down state, and FIG.13B is a bottom view showing the beverage light emitting device according to the third embodiment. [Figure 13] FIG. 11 is a perspective view showing a beverage light emitting device according to a fourth embodiment. [Figure 14] FIG. 13 is a perspective view showing a beverage light emitting device according to a fifth embodiment. [Figure 15] FIG. 13 is a perspective view showing a state in which the beverage light emitting device according to the fifth embodiment is in use. [Figure 16] 13(a) is a side view showing a beverage light emitting device according to a sixth embodiment, and (b) is a perspective view showing a beverage light emitting device according to a seventh embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, an embodiment of the beverage light emitting device according to the present disclosure will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are given the same reference numerals, and duplicated descriptions are omitted as appropriate. The drawings may be partially simplified or exaggerated for ease of understanding, and the dimensional ratios and the like are not limited to those shown in the drawings.

[0021] (First embodiment) FIG. 1 is a side view showing a state where a beverage light-emitting device 1 according to this embodiment is illuminating a beverage D. In this embodiment, the beverage D is a sparkling beverage. The beverage D is poured into a beverage container C from a faucet of a beverage server, for example. The beverage D comprises a liquid L and foam B located on top of the liquid L inside the beverage container C. The beverage container C is a container capable of containing the beverage D, such as a glass, a mug, or a cup. As an example, the beverage container C may be a plastic cup. The beverage container C has transparency that allows light H, which will be described later, to pass through. As an example, the shape of the beverage container C in a plan view is circular.

[0022] Beverage D contains, for example, a fermented alcoholic drink containing a gas such as carbon dioxide, and has foaming properties such that a layer of foam B is formed on liquid L when poured into beverage container C, and foam retention properties such that the formed foam B is maintained for a certain period of time or more. As a specific example, beverage D is a beverage that exhibits a NIBEM value of 50 seconds or more. The NIBEM value is an index that indicates the foam retention properties of a beverage, promulgated by EBC (European Brewery Convention) law.

[0023] Beverage D may be a beer-taste beverage. Beer-taste beverages include beverages that taste like beer and beverages that give the drinker the sensation of drinking beer. Beer-taste beverages with an alcohol content of 1% or more are also called beer-taste alcoholic beverages. In addition, beer-taste beverages include beer, happoshu, non-alcoholic beer, and liqueur (e.g., beverages classified as "liqueur (sparkling) (1)" under the Liquor Tax Act) that use malt as an ingredient.

[0024] The beverage D may be a sparkling beverage other than a beer-taste beverage. The beverage D may be, for example, a chuhai, sour, highball, RTD (Ready To Drink), cola, soda, cider, or the like, which has at least one of the foaming characteristics and foam retention characteristics described above. In this embodiment, an example in which the beverage D is beer will be described.

[0025] The foam B of the beverage D contains so-called fine bubbles, which are different from the coarse bubbles generated, for example, by the impact of the liquid L on the beverage container C. The fine bubbles are creamy bubbles that improve the design and mouthfeel of the beverage D, and are desirably generated in large quantities in order to function as a lid to prevent the loss of the aroma or carbon dioxide gas of the liquid L and to prevent oxidation of the liquid L. The fine bubbles are also generated from the frosty mist F that appears at the boundary between the liquid L and the foam B. The frosty mist F is a misty layer that appears at the boundary between the liquid L and the foam B, and is, for example, an aggregate of fine bubbles with an outer diameter of 20 μm or less. The amount of the frosty mist F varies depending on the type (brand) of the beverage D, the ingredients of the beverage D, or the method of pouring the beverage D.

[0026] The frosty mist F is generated by the application of gas pressure when the beverage D is dispensed into the beverage container C. The frosty mist F can be generated not only by gas pressure, but also by other factors such as ultrasound. For example, the frosty mist F regenerates bubbles B when the beverage D is consumed, and has the effect of improving the retention of fine bubbles. Specifically, when the beverage D is consumed, the frosty mist F comes into contact with the liquid L, bubbles B, or the beverage container C and is stimulated, causing new bubbles B to be regenerated from the frosty mist F. As the frosty mist F appears more clearly and the amount of frosty mist F increases, the amount of regenerated bubbles B increases.

[0027] As described above, the frosty mist F is a misty layer that appears at the boundary between the liquid L and the bubbles B, so it is possible to beautifully light up the frosty mist F when irradiated with light H. The beverage light emitting device 1 irradiates the beverage D with light H from below, causing the frosty mist F to emit light.

[0028] The beverage light-emitting device 1 is detachably attached to the bottom C1 of the beverage container C. The bottom C1 has an outer peripheral surface C2 with which a convex portion 4 of the beverage light-emitting device 1, which will be described later, abuts. The beverage light-emitting device 1 irradiates light H onto the beverage D through the beverage container C while attached to the bottom C1 of the beverage container C. That is, the beverage light-emitting device 1 is attached to the beverage container C that contains the beverage D and irradiates light H onto the beverage D through the beverage container C. The light H passes through the liquid L and is reflected by the bubbles B. Therefore, the frosty mist F can be made to shine by the light H from the irradiation element 6 and the light H reflected by the bubbles B. When the light H is irradiated onto the beverage D, which is a sparkling beverage, the light H can illuminate the bubbles B, so that the brilliance of the bubbles B can be enjoyed.

[0029] Fig. 2 is a perspective view showing the beverage lighting device 1. As shown in Fig. 2, the beverage lighting device 1 has a cylindrical shape with a bottom. For example, the beverage lighting device 1 includes a mounting part 2 to which a beverage container C is attached, and a substrate 5. For example, the mounting part 2 has a cylindrical shape with a bottom, and the substrate 5 is fixed to the bottom of the mounting part 2.

[0030] For example, the mounting part 2 is made of a flexible material. The flexible material is a material that can be bent by hand, and an example of such a material is a rubber material. The mounting part 2 has a cylindrical part 3 having an opening 3b into which the beverage container C is inserted. The cylindrical part 3 has a side part 3c that extends in an axial direction D1, which is the direction in which the axis X of the cylindrical part 3 extends, and a circumferential direction D2, and a bottom part 3d that extends in a direction intersecting the axial direction D1.

[0031] For example, the side portion 3c has a cylindrical shape, and the bottom portion 3d has a circular shape. For example, the side portion 3c has an inner peripheral surface 3f facing the beverage container C, and the bottom portion 3d has a bottom surface 3g facing the beverage container C. As an example, the bottom surface 3g is a flat surface. The cylindrical portion 3 has a through hole 3h penetrating the bottom portion 3d in the axial direction D1.

[0032] The mounting portion 2 has a protrusion 4 protruding from an inner peripheral surface 3f of the cylindrical portion 3. For example, the cylindrical portion 3 and the protrusion 4 are made of a flexible material. The protrusion 4 abuts against an outer peripheral surface C2 of a beverage container C inserted into the cylindrical portion 3 from the opening 3b. The protrusion 4 is provided to fix the beverage container C inserted into the cylindrical portion 3 from the opening 3b inside the cylindrical portion 3. The protrusion 4 will be described in detail later.

[0033] FIG. 3 is a plan view showing the beverage lighting device 1. FIG. 4 is a cross-sectional view of the beverage lighting device 1 taken along line AA. As shown in FIG. 3 and FIG. 4, the substrate 5 is fixed to the bottom 3d of the cylindrical part 3. The substrate 5 has an upper surface 5b facing the beverage container C and a lower surface 5c facing the opposite side to the upper surface 5b. For example, the substrate 5 is fixed to the lower surface 3j of the bottom 3d. As an example, the substrate 5 is fixed to the lower surface 3j by an adhesive. However, the substrate 5 may be fixed to the lower surface 3j by a means other than an adhesive, and the means for fixing the substrate 5 to the lower surface 3j is not particularly limited.

[0034] The beverage light emitting device 1 includes an irradiation element 6 that irradiates light H. The irradiation element 6 irradiates light H to a beverage container C inserted into the inside of the cylindrical part 3 through the opening 3b. The irradiation element 6 is mounted on a substrate 5. The irradiation element 6 is mounted on an upper surface 5b of the substrate 5. The irradiation element 6 irradiates light H upward.

[0035] The substrate 5 is fixed to the bottom 3d of the cylindrical part 3 with the irradiation element 6 inserted into the through hole 3h of the cylindrical part 3. As an example, the irradiation element 6 is an LED light source that emits LED light. However, the type of the irradiation element 6 is not particularly limited. For example, the beverage light emitting device 1 has a plurality of irradiation elements 6.

[0036] The multiple irradiation elements 6 are arranged on a virtual circle E1 centered on the center O of the beverage light emitting device 1 in a plan view (when viewed along the axial direction D1). For example, the multiple irradiation elements 6 are arranged along the circumferential direction D2. As an example, the number of irradiation elements 6 is four. For example, four irradiation elements 6 are arranged to form a rectangular shape (for example, a square shape) in a plan view. However, the number and arrangement of the irradiation elements 6 are not particularly limited.

[0037] The beverage light emitting device 1 has a battery 7 that supplies power to the irradiation element 6. As an example, the battery 7 is a button battery. The battery 7 is mounted on the upper surface 5b of the substrate 5. The battery 7 supplies power to the irradiation element 6 via the substrate 5. The irradiation element 6 obtains power from the battery 7 and emits light H. The battery 7 is mounted on the substrate 5 and inserted into the through hole 3h of the cylindrical part 3. For example, in a plan view, the battery 7 is disposed between a pair of irradiation elements 6. For example, the beverage light emitting device 1 has a plurality of batteries 7 (for example, two batteries). The plurality of batteries 7 are arranged, for example, on an imaginary straight line Y passing through the center O.

[0038] For example, the beverage light-emitting device 1 has a switch 8 for turning on and off the irradiation elements 6. As an example, the switch 8 is mounted on the lower surface 5c of the substrate 5. A user of the beverage light-emitting device 1 (e.g., a person drinking the beverage D) can turn on and off the irradiation elements 6 by operating the switch 8. For example, multiple irradiation elements 6 are turned on and off simultaneously by operating the switch 8. However, the switch may be one that turns on and off each irradiation element 6 individually, and the form of the switch is not particularly limited.

[0039] The beverage light emitting device 1 may include a timer 9 that stops the emission of light H after a certain time has elapsed since the emission element 6 started emitting light H. For example, the timer 9 is exposed on the lower surface 5c of the substrate 5. For example, the timer 9 can set the emission time of light H by the emission element 6. The emission element 6 automatically stops emitting light H after the time set by the timer 9 has elapsed since the emission of light H started.

[0040] As described above, when the beverage D is poured into the beverage container C, the frosty mist F is generated. The frosty mist F gradually decreases as time passes from the pouring of the beverage D into the beverage container C, and disappears after a certain time has passed from the pouring. This certain time is, for example, 30 seconds or more and 5 minutes or less. Therefore, by setting the certain time in the timer 9, it is possible to enjoy the lighting up of the frosty mist F by the irradiation element 6, and the irradiation element 6 can be automatically turned off after the frosty mist F disappears.

[0041] Next, the protrusion 4 will be described in more detail. The protrusion 4 is provided to fix the beverage container C to the cylindrical part 3. The protrusion 4 comes into contact with the outer peripheral surface C2 of the beverage container C inserted inside the cylindrical part 3, thereby preventing the beverage container C from falling out of the cylindrical part 3 and making it possible to lift the beverage light emitting device 1 together with the beverage container C.

[0042] For example, the protrusion 4 has a rectangular shape in a plan view. As an example, the protrusion 4 has an outer side surface 4b extending in both the radial direction D4 and the axial direction D1 of the beverage light-emitting device 1 in a plan view, a top surface 4c extending along the circumferential direction D2 at an end opposite to the inner peripheral surface 3f as viewed from the outer side surface 4b, and an upper surface 4d facing vertically upward. The outer side surface 4b, the top surface 4c, and the upper surface 4d are, for example, flat surfaces. For example, the protrusion 4 has a pair of outer side surfaces 4b, and the pair of outer side surfaces 4b are aligned along the circumferential direction D2. The top surface 4c abuts against the outer peripheral surface C2 of the beverage container C.

[0043] For example, the beverage light emitting device 1 has a plurality of protrusions 4. The plurality of protrusions 4 are arranged along the circumferential direction D2. The number of protrusions 4 is, for example, 3 or more. However, the number of protrusions 4 may be 4 or more, 6 or more, 8 or more, or 12 or more. The number of protrusions 4 may be 36 or less, 18 or less, 12 or less, or 8 or less. In this way, the number of protrusions 4 can be changed as appropriate. In this embodiment, an example in which the number of protrusions 4 is 8 is shown.

[0044] In a plan view, the top surfaces 4c of the multiple convex portions 4 are arranged along a virtual circle E2 centered on the center O of the beverage light-emitting device 1. For example, the diameter Z1 of the virtual circle E2 is smaller than the minimum value Z2 (see FIG. 1) of the diameter of the outer circumferential surface C2 of the beverage container C. In this case, when the beverage container C is inserted into the cylindrical portion 3 in a state in which the cylindrical portion 3 is bent and expanded, the contact force of the convex portions 4 against the outer circumferential surface C2 of the beverage container C can be strengthened. However, the diameter Z1 may be approximately the same as the minimum value Z2, or may be slightly smaller than the minimum value Z2. The diameter Z1 is smaller than the diameter of the inner circumferential surface 3f of the cylindrical portion 3 in a plan view.

[0045] In the beverage lighting device 1 of this embodiment, the convex portion 4 abuts against the outer peripheral surface C2 of the beverage container C inserted inside the cylindrical portion 3, making it possible to reduce the height A1 (length in the axial direction D1) of the beverage lighting device 1 while ensuring the holding force of the beverage lighting device 1 against the beverage container C.

[0046] If the beverage light-emitting device 1 did not have the protrusion 4, the outer peripheral surface C2 of the beverage container C inserted into the cylindrical part 3 would come into contact with the inner peripheral surface 3f of the cylindrical part 3. In this case, in order to ensure the holding force of the beverage light-emitting device 1, the height A1 of the beverage light-emitting device 1 must be increased to increase the contact area of ​​the inner peripheral surface 3f with the outer peripheral surface C2 of the beverage container C.

[0047] In contrast, when the beverage light-emitting device 1 has the protruding portion 4, the outer peripheral surface C2 of the beverage container C inserted inside the cylindrical portion 3 comes into contact with the protruding portion 4 protruding from the inner peripheral surface 3f. In this case, the protruding portion 4, which has a small contact area and a large pressure, comes into contact with the outer peripheral surface C2 of the beverage container C, so a strong holding force can be maintained without increasing the height A1 of the beverage light-emitting device 1. As a result, the height A1 can be reduced.

[0048] For example, if the ratio of the height A1 of the beverage lighting device 1 to the width A2 of the beverage lighting device 1 (the length in the direction perpendicular to the axial direction D1; if the shape of the beverage lighting device 1 in a planar view is circular, the diameter of the beverage lighting device 1) is 1:N (N is a positive real number), the value of N is 2 or more. In other words, the height A1 is half or less of the width A2. The value of N may be 3 or more, or 4 or more. The upper limit of the value of N is, for example, 4 or 5. In this way, the value of N can be changed as appropriate.

[0049] Next, an example of a beverage serving method according to this embodiment will be described with reference to FIG. 5. An example of a method of serving a beverage D using the beverage light emitting device 1 will be described below. First, the beverage light emitting device 1 is attached to a beverage container C (step S1). The beverage light emitting device 1 is attached to the beverage container C, for example, by a provider of the beverage D (for example, a staff member of a store that serves the beverage D). At this time, the bottom C1 of the beverage container C is pushed into the opening 3b of the cylindrical portion 3, the cylindrical portion 3 is bent, and the beverage container C is inserted into the cylindrical portion 3, and for example, the multiple protrusions 4 come into contact with the outer peripheral surface C2 of the bottom C1 of the beverage container C.

[0050] Next, beverage D is poured into beverage container C (step S2). For example, with beverage container C equipped with beverage light emitting device 1 placed under a faucet of a beverage server, the provider of beverage D operates the faucet to pour beverage D into beverage container C. The provider of beverage D, for example, pulls the lever of the faucet to pour liquid L into beverage container C, and then pushes the lever of the faucet to pour foam B into beverage container C, thereby pouring beverage D with foam B on top of liquid L. For example, the frosty mist F described above is generated as beverage D is poured.

[0051] Then, the irradiation element 6 is turned on (step S3). The irradiation element 6 may be turned on before step S2 (dispensing the beverage D). For example, the provider of the beverage D presses the switch 8 located on the underside of the beverage light emitting device 1 to turn on the irradiation element 6. At this time, the timer 9 may set the lighting time of the irradiation element 6 (the time from when the irradiation element 6 starts to light up until when the irradiation element 6 automatically turns off). The lighting time of the irradiation element 6 may be set according to the generation time of the frosty mist F.

[0052] Next, the beverage D with the beverage light emitting device 1 attached and the illumination element 6 turned on is served to the customer (step S4). The customer is, for example, a customer of the store that serves the beverage D. By serving the beverage D with the illumination element 6 turned on and the frosty mist F illuminated with light H, the customer can see the glittering frosty mist F and enjoy it.

[0053] As described above, since the beverage light emitting device 1 is attached to the beverage container C, the customer can drink the beverage D while the light H is irradiated onto the frosty mist F. In other words, the customer can visually enjoy the beverage D by looking at the illuminated frosty mist F, and can also enjoy drinking the beverage D.

[0054] After the beverage D has been served, the irradiation element 6 is turned off (step S5). The irradiation element 6 may be turned off by the customer pressing the switch 8, or may be turned off automatically after a time set in the timer 9 has elapsed. After the irradiation element 6 is turned off, the irradiation element 6 may be turned on again by pressing the switch 8.

[0055] It should be noted that step S5 may be omitted. Furthermore, the beverage light emitting device 1 may be removed from the beverage container C. The beverage light emitting device 1 may be removed from the beverage container C by the customer or by the provider of the beverage D. Through the above steps, a series of steps in the beverage serving method is completed.

[0056] Next, the effects obtained from the beverage light-emitting device 1 according to this embodiment will be described in more detail. The beverage light-emitting device 1 has a cylindrical part 3 with an opening 3b formed therein, and the illumination element 6 illuminates light H onto a beverage container C inserted into the cylindrical part 3 through the opening 3b. Thus, the light H is illuminated onto the beverage container C containing the beverage D, so that the beverage D can be illuminated with light H, allowing a drinker of the beverage D to enjoy seeing the illuminated beverage D.

[0057] In the beverage light emitting device 1, the beverage container C is inserted into the cylindrical part 3 through the opening 3b, thereby mounting the beverage light emitting device 1 on the beverage container C. Therefore, the beverage light emitting device 1 can be made into a single component, simplifying the configuration and realizing miniaturization. The beverage light emitting device 1 has a convex part 4 protruding from the inner peripheral surface 3f of the cylindrical part 3, and the convex part 4 abuts against the outer peripheral surface C2 of the beverage container C inserted into the cylindrical part 3. The convex part 4 abuts against the outer peripheral surface C2 of the beverage container C to fix the cylindrical part 3 to the beverage container C, thereby mounting the beverage light emitting device 1 on the beverage container C.

[0058] The protrusion 4 protruding from the inner peripheral surface 3f abuts against the outer peripheral surface C2 of the beverage container C, eliminating the need to make cuts into the cylindrical portion as in the conventional method, thereby reducing the height A1 of the beverage lighting device 1 and improving the appearance when the beverage lighting device 1 is attached. By reducing the height A1 of the beverage lighting device 1, the beverage lighting device 1 can be easily attached to and detached from the beverage container C.

[0059] Furthermore, the convex portion 4 abuts against the outer peripheral surface C2 of the beverage container C inserted inside the cylindrical portion 3, thereby increasing the holding force for the beverage container C. As a result, even when the beverage container C is lifted up to drink the beverage D, the beverage light emitting device 1 is lifted up together with the beverage container C, allowing the user to enjoy the illumination of the beverage D while drinking the beverage D.

[0060] As described above, the beverage light emitting device 1 may include a plurality of protrusions 4 arranged along the circumferential direction D2 of the cylindrical part 3. In this case, the plurality of protrusions 4 arranged along the circumferential direction D2 of the cylindrical part 3 abut against the outer circumferential surface C2 of the beverage container C, so that the holding force of the beverage light emitting device 1 with respect to the beverage container C can be further increased.

[0061] As described above, the cylindrical part 3 and the protruding part 4 may be made of a flexible material. In this case, the cylindrical part 3 and the protruding part 4 can be deformed due to their flexibility when the beverage light emitting device 1 is attached to the beverage container C, so that the beverage light emitting device 1 can be attached to and detached from the beverage container C more easily.

[0062] As described above, the protrusion 4 may have a flat top surface 4c that contacts the outer circumferential surface C2 of the beverage container C. In this case, the flat top surface 4c of the protrusion 4 contacts the outer circumferential surface C2 of the beverage container C, thereby increasing the area of ​​the protrusion 4 that contacts the beverage container C. This further increases the holding force of the beverage light-emitting device 1 to the beverage container C.

[0063] As described above, the beverage lighting device 1 may include a substrate 5 on which the irradiation element 6 is mounted. The cylindrical portion 3 may have a bottom 3d in which a through hole 3h is formed penetrating the cylindrical portion 3 in the axial direction D1, which is the direction in which the axis X of the cylindrical portion 3 extends. The substrate 5 may be fixed to the bottom 3d with the irradiation element 6 inserted into the through hole 3h. In this case, the substrate 5 on which the irradiation element 6 is mounted is provided, and the substrate 5 is fixed to the bottom 3d with the irradiation element 6 inserted into the through hole 3h of the bottom 3d of the cylindrical portion 3. The height A1 of the beverage lighting device 1 can be further reduced by mounting the irradiation element 6 on the substrate 5 and inserting it into the through hole 3h.

[0064] As described above, the beverage lighting device 1 may include the battery 7 inserted into the through-hole 3h while mounted on the substrate 5. The illumination element 6 may obtain power from the battery 7 and emit light H. In this case, the beverage lighting device 1 can be battery-powered, further simplifying the configuration. Furthermore, the height A1 of the beverage lighting device 1 can be reduced by inserting the battery 7 into the through-hole 3h of the bottom 3d.

[0065] As described above, the beverage light emitting device 1 may include a timer 9 that stops the emission of light H after a certain time has elapsed since the emission element 6 started emitting light H. In this case, the time to stop the emission of light H can be set according to the state of the dispensed beverage D. As a specific example, the time to stop the emission of light H can be set to match the time from when the beer-taste beverage D is dispensed into the beverage container C to when the frosty mist F disappears.

[0066] Next, a beverage light-emitting device 11 according to a first modified example will be described with reference to Fig. 6. A portion of the configuration of the beverage light-emitting device 11 is the same as a portion of the configuration of the beverage light-emitting device 1 described above. Therefore, in the following, the same components as those of the beverage light-emitting device 1 will be denoted by the same reference numerals and will not be described as appropriate.

[0067] The beverage lighting device 11 differs from the beverage lighting device 1 in that it includes a substrate covering part 12. The substrate covering part 12 includes an upper covering part 13 located above the substrate 5, and a lower covering part 14 located below the substrate 5. The upper covering part 13 is placed on the bottom surface 3g of the cylindrical part 3. As an example, the upper covering part 13 has a film shape. For example, the upper covering part 13 is attached to the bottom surface 3g.

[0068] The lower covering portion 14 has a side portion 14b extending downward from the cylindrical portion 3, and a bottom portion 14c extending in a direction intersecting the axial direction D1 at the lower end of the side portion 14b. The side portion 14b is provided continuous with the side portion 3c of the cylindrical portion 3. The substrate 5 is sandwiched between the bottom portions 14c and 3d. The lower covering portion 14 may be integral with the cylindrical portion 3. For example, the lower covering portion 14 may be molded integrally with the cylindrical portion 3.

[0069] As described above, in the beverage light emitting device 11, the substrate 5 is covered by the substrate covering part 12 and is not exposed, so that the substrate 5 can be protected more reliably. In the above example, the substrate covering part 12 including the upper covering part 13 and the lower covering part 14 has been described. However, the substrate covering part may include either the upper covering part 13 or the lower covering part 14. In other words, the substrate covering part may include only either the upper covering part 13 or the lower covering part 14.

[0070] FIG. 7(a) is a plan view showing a beverage lighting device 21 according to a second modified example. The beverage lighting device 21 has a convex portion 24 having a shape different from the convex portion 4 described above. The beverage lighting device 21 has 12 convex portions 24. In a plan view, the convex portions 24 are V-shaped. For example, the convex portions 24 have side surfaces 24b that extend in the axial direction D1 and are inclined with respect to the radial direction D4, and an upper surface 24c that faces vertically upward. The convex portions 24 have a pair of side surfaces 24b aligned along the circumferential direction D2, and in a plan view, the pair of side surfaces 24b are V-shaped. The upper surface 24c is triangular.

[0071] 7(b) is a plan view showing a beverage light-emitting device 31 according to a third modified example. The beverage light-emitting device 31 has 16 convex portions 34. In a plan view, the convex portions 34 are U-shaped. For example, the convex portions 34 have a curved surface 34b that extends in the axial direction D1 and is U-shaped in a plan view, and an upper surface 34c that faces vertically upward. As shown in the second and third modified examples above, in the beverage light-emitting device, the shape and number of the convex portions can be appropriately changed.

[0072] Second embodiment Fig. 8(a) is a perspective view showing a beverage light-emitting device 41 according to a second embodiment. Fig. 8(b) is a plan view showing the beverage light-emitting device 41. Fig. 9(a) is a perspective view showing the beverage light-emitting device 41 from the opposite side to that shown in Fig. 8(a). Fig. 9(b) is a bottom view showing the beverage light-emitting device 41. Fig. 10(a) is a perspective view showing a substrate 5A and an irradiation element 6A of the beverage light-emitting device 41. Fig. 10(b) is a cross-sectional view showing the state in which the substrate 5A is fitted.

[0073] As shown in Figures 8(a), 8(b), 9(a), 9(b), 10(a) and 10(b), the beverage light emitting device 41 has a cylindrical shape. The beverage light emitting device 41 has mounting parts 42A and 42B to which a beverage container C is attached, a substrate 5A and an irradiation element 6A mounted on the substrate 5A. For example, the substrate 5A on which the irradiation element 6A is mounted is detachable from the mounting parts 42A and 42B.

[0074] The mounting portion 42A and the mounting portion 42B are aligned along the axial direction of the beverage light emitting device 41. The mounting portion 42A has a cylindrical portion 43A having an opening 43b into which the beverage container C is inserted. The cylindrical portion 43A has a side portion 43c extending in the axial direction and circumferential direction of the beverage light emitting device 41, and a bottom portion 45. A substrate 5A can be placed on the bottom portion 45 of the cylindrical portion 43A.

[0075] The beverage lighting device 41 has a substrate placement section 46 on which the substrate 5A is placed, on the bottom 45. The substrate placement section 46 is L-shaped with a first section extending upward from the bottom 45 and a second section extending horizontally from above the first section, and the substrate 5A is sandwiched between the second section and the bottom 45. The beverage lighting device 41 has a plurality of substrate placement sections 46, and the plurality of substrate placement sections 46 are arranged in a rectangular shape, for example.

[0076] The side surface portion 43c has an inner peripheral surface 43f facing the beverage container C. The mounting portion 42A has a protrusion 44A protruding from the inner peripheral surface 43f of the cylindrical portion 43A. The protrusion 44A has a function similar to that of the protrusion 4 described above. For example, the upper surface of the protrusion 44A is flush with the upper surface of the cylindrical portion 43A.

[0077] The mounting portion 42B is disposed on the opposite side to the mounting portion 42A. That is, the mounting portion 42B faces away from the mounting portion 42A. The mounting portion 42B has a cylindrical portion 43B in which an opening 43g into which the beverage container C is inserted is formed. The cylindrical portion 43B has a side portion 43h extending in the axial direction and circumferential direction of the beverage light-emitting device 41, and a bottom portion 45. The bottom portion 45 of the cylindrical portion 43B is provided with a substrate placement portion 46, similar to the bottom portion 45 of the cylindrical portion 43A. The side portion 43h has an inner peripheral surface 43j facing the beverage container C. The mounting portion 42B has a protrusion 44B protruding from the inner peripheral surface 43j of the cylindrical portion 43B. The function, shape and size of the protrusion 44B are, for example, the same as the function, shape and size of the protrusion 44A described above.

[0078] The inner diameter of the mounting part 42A (cylindrical part 43A) is different from the inner diameter of the mounting part 42B (cylindrical part 43B). For example, the inner diameter of the cylindrical part 43A is larger than the inner diameter of the cylindrical part 43B. When viewed along the axial direction of the beverage light-emitting device 41, the distance from the center of the beverage light-emitting device 41 to the convex part 44A is longer than the distance from the center of the beverage light-emitting device 41 to the convex part 44B. This allows the mounting part 42A to mount a beverage container C that is thicker (has a larger outer diameter) than the beverage container C mounted on the mounting part 42B.

[0079] That is, a thicker beverage container C can be attached to the attachment part 42A when the attachment part 42A faces upward, and a thinner beverage container C can be attached to the attachment part 42B when the attachment part 42B faces upward. For example, a mug can be attached to the attachment part 42A, and a small tumbler can be attached to the attachment part 42B. Therefore, a plurality of types of beverage containers C having different outer diameters can be attached to the beverage light emitting device 41.

[0080] Third embodiment Fig. 11(a) is a perspective view showing a beverage light-emitting device 51 according to a third embodiment. Fig. 11(b) is a plan view showing the beverage light-emitting device 51. Fig. 12(a) is a perspective view showing the beverage light-emitting device 51 as viewed from the opposite side to that shown in Fig. 11(a). Fig. 12(b) is a bottom view showing the beverage light-emitting device 51. The beverage light-emitting device 51 differs from the beverage light-emitting device 41 described above in that it includes the substrate 5 of the beverage light-emitting device 1 according to the first embodiment instead of the substrate 5A.

[0081] The beverage light emitting device 51 has mounting parts 52A and 52B, a substrate 5, and an irradiation element 6 mounted on the substrate 5. The substrate 5 is detachable from the mounting parts 52A and 52B. The mounting part 52A has a cylindrical part 53A similar to the above-mentioned cylindrical part 43A, and the mounting part 52B has a cylindrical part 53B similar to the cylindrical part 43B.

[0082] The beverage light-emitting device 51 has a through-hole penetrating the bottom of the cylindrical parts 53A, 53B, and this through-hole is similar to the above-mentioned through-hole 3h (see FIG. 4). In the beverage light-emitting device 51, the substrate 5 is arranged under the through-hole so as to block the through-hole. The substrate 5 may be arranged over the through-hole so as to block the through-hole, and the arrangement of the substrate 5 can be changed as appropriate. For example, a switch 8 may be mounted on the surface (lower surface) of the substrate 5 opposite to the surface on which the irradiation element 6 is mounted. In this case, the irradiation element 6 can be turned on and off by pressing the switch 8 from below.

[0083] (Fourth embodiment) Fig. 13 is a perspective view showing a beverage light emitting device 61 according to the fourth embodiment. As shown in Fig. 13, the beverage light emitting device 61 has mounting parts 62A and 62B. The mounting parts 62A and 62B face in the same direction.

[0084] The mounting portion 62A has a cylindrical portion 63A similar to the cylindrical portion 43A, and a protruding portion 64A protruding from the inner peripheral surface of the cylindrical portion 63A. The mounting portion 62B has a cylindrical portion 63B having an inner diameter smaller than that of the cylindrical portion 63A, and a protruding portion 64B protruding from the inner peripheral surface of the cylindrical portion 63B. For example, the cylindrical portion 63B is located lower than the cylindrical portion 63A, and is located inside the cylindrical portion 63A in a plan view.

[0085] The beverage light emitting device 61 has, for example, the mounting part 42B (see FIG. 9(a)) on the opposite side (lower side in FIG. 13) to the mounting parts 62A and 62B. For example, the inner diameter of the mounting part 62A is larger than the inner diameter of the mounting part 62B, which in turn is larger than the inner diameter of the mounting part 42B. This allows a beverage container C with a large outer diameter to be mounted in the mounting part 62A, a beverage container C with a medium outer diameter to be mounted in the mounting part 62B, and a beverage container C with a small outer diameter to be mounted in the mounting part 42B.

[0086] That is, when the mounting parts 62A, 62B are facing upward, a thick beverage container C can be mounted in the mounting part 62A, and a medium-thick beverage container C can be mounted in the mounting part 62B. Furthermore, when the mounting part 42B is facing upward, a thin beverage container C can be mounted in the mounting part 42B. Therefore, three or more types of beverage containers C having different outer diameters can be mounted in the beverage light emitting device 61.

[0087] Fifth embodiment Fig. 14 is a perspective view showing a beverage light emitting device 71 according to a fifth embodiment. As shown in Fig. 14, the beverage light emitting device 71 has an attachment part 72. The attachment part 72 has a cylindrical part 73 having an opening into which a beverage container C is inserted. The cylindrical part 73 is provided to prevent the inserted beverage container C from shifting out of position.

[0088] The beverage light emitting device 71 has a finger hook 74 on which the finger of a drinker who drinks a beverage is hooked. The finger hook 74 includes a first ring-shaped portion 74A and a second ring-shaped portion 74B formed at a position different from that of the first ring-shaped portion 74A. The first ring-shaped portion 74A is located diagonally above the second ring-shaped portion 74B. One end of the first ring-shaped portion 74A is located on the outer circumferential surface of the cylindrical portion 73, and the other end of the first ring-shaped portion 74A is located on the lower surface of the cylindrical portion 73. The first ring-shaped portion 74A extends in a ring shape from the outer circumferential surface of the cylindrical portion 73 to the lower surface of the cylindrical portion 73.

[0089] One end and the other end of the second ring-shaped portion 74B are located on the lower surface of the cylindrical portion 73. The second ring-shaped portion 74B is formed at a position adjacent to the first ring-shaped portion 74A. For example, the surface (opening surface) of the second ring-shaped portion 74B extending in a direction perpendicular to the axis of the second ring-shaped portion 74B is aligned on the same plane as the surface (opening surface) of the first ring-shaped portion 74A extending in a direction perpendicular to the axis of the first ring-shaped portion 74A.

[0090] As described above in the fifth embodiment, the beverage light emitting device according to one aspect of the present disclosure has the following configuration. A beverage light emitting device that is attached to a beverage container that contains a beverage and irradiates light onto the beverage through the beverage container, a cylindrical portion having an opening through which the beverage container is inserted; an illumination element that illuminates the beverage container inserted into the cylindrical portion through the opening; a finger hook portion that protrudes from the cylindrical portion to the outside of the cylindrical portion and on which a finger of a drinker who drinks the beverage can be hooked; Equipped with Beverage lighting device.

[0091] In the beverage light-emitting device 71, which is an example of the beverage light-emitting device described above, the finger hook portion 74 is provided, so that the drinker can hold the beverage container C with the hand T and hook his / her finger on the finger hook portion 74, as shown in FIG. 15. The drinker can enjoy looking at the illuminated beverage D while holding the beverage container C with the hand T. In the beverage light-emitting device 71, the pourer who pours the beverage D can hold the beverage container C with the hand T and hook his / her finger on the finger hook portion 74. For example, the pourer can hook his / her finger on the finger hook portion 74 and light up the beverage D poured into the beverage container C with the irradiation element 6, thereby entertaining the drinker of the beverage D. Furthermore, in front of a plurality of people, the pourer can hook his / her finger on the finger hook portion 74 and light up the beverage D poured into the beverage container C with the irradiation element 6, so that the plurality of people can enjoy looking at the illuminated beverage D.

[0092] The finger hook 74 has a first ring-shaped portion 74A and a second ring-shaped portion 74B. Therefore, by inserting one finger into the first ring-shaped portion 74A and another finger into the second ring-shaped portion 74B, the beverage light-emitting device 71 and the beverage container C can be easily held. For example, the drinker can insert his / her ring finger into the first ring-shaped portion 74A and his / her little finger into the second ring-shaped portion 74B. However, the types of fingers inserted into the first ring-shaped portion 74A and the second ring-shaped portion 74B are not particularly limited.

[0093] Sixth embodiment Fig. 16(a) is a side view showing a beverage lighting device 81 according to a sixth embodiment. As shown in Fig. 16(a), the beverage lighting device 81 includes a mounting part 82 having a cylindrical part 83, and a finger hook part 84. The finger hook part 84 differs from the above-mentioned finger hook part 74 in that the finger hook part 84 has only one ring-shaped part.

[0094] Seventh embodiment FIG. 16(b) is a side view showing a beverage light-emitting device 91 according to the seventh embodiment. As shown in FIG. 16(b), the beverage light-emitting device 91 includes a mounting portion 92 having a cylindrical portion 93 and a finger hook portion 94, and is different from the beverage light-emitting device 81 in that the finger hook portion 94 is not ring-shaped. The finger hook portion 94 has a top surface portion 94b that extends from the cylindrical portion 93 to the outside of the cylindrical portion 93 in a plan view and extends horizontally, and a curved portion 94d that extends diagonally downward from an end portion 94c of the top surface portion 94b opposite the cylindrical portion 93 to the inside of the cylindrical portion 93 in a plan view. The curved portion 94d extends from the end portion 94c to the lower end of the cylindrical portion 93. The curved portion 94d is curved to the inside of the finger hook portion 94. As described above, in the beverage light-emitting device 91, a finger can be hooked on the curved portion 94d, so that the same action and effect as the beverage light-emitting device 71 and the beverage light-emitting device 81 can be obtained.

[0095] Various embodiments and various modifications of the beverage light-emitting device according to the present disclosure have been described above. However, the beverage light-emitting device according to the present disclosure is not limited to the above-mentioned embodiments or modifications, and may be further modified within the scope of the gist described in the claims. In other words, the shape, size, material, number and arrangement of each part of the beverage light-emitting device according to the present disclosure can be appropriately changed within the scope of the above gist.

[0096] For example, in the above-described embodiment, a beverage serving method using the beverage light-emitting device 1 has been described, in which the beverage light-emitting device is attached (step S1), a beverage is dispensed (step S2), turned on (step S3), the beverage is served (step S4), and turned off (step S5). However, the contents and order of steps of the beverage serving method using the beverage light-emitting device are not limited to those in the above-described embodiment and can be changed as appropriate.

[0097] In the above-described embodiment, the beverage lighting device 1 is described that includes the substrate 5 on which the illumination element 6, the battery 7, the switch 8, and the timer 9 are mounted. However, the beverage lighting device may be a beverage lighting device other than a battery-powered device that does not include the battery 7. Furthermore, the beverage lighting device may be a beverage lighting device that does not include at least any of the substrate 5, the battery 7, the switch 8, and the timer 9.

[0098] In the above-described embodiment, an example has been described in which the beverage D poured into the beverage container C is beer, and the irradiation element 6 of the beverage light-emitting device 1 irradiates the light H onto the beer. However, the irradiation element 6 of the beverage light-emitting device 1 may irradiate the light H onto beverages other than beer. For example, the irradiation element 6 may irradiate the light H onto sparkling beverages other than beer, and beverages other than sparkling beverages. As a specific example, the irradiation element 6 may irradiate the light H onto sparkling beer, non-alcoholic beer, chuhai, sour, highball, RTD (Ready To Drink), cola, soda, cider, or the like having foam retention properties. [Explanation of symbols]

[0099] 1... Beverage light emitting device, 2... Mounting part, 3... Cylindrical part, 3b... Opening, 3c... Side part, 3d... Bottom, 3f... Inner peripheral surface, 3g... Bottom surface, 3h... Through hole, 3j... Bottom surface, 4... Convex part, 4b... Outer surface, 4c... Top surface, 4d...Top surface, 5,5A...Substrate, 5b...Top surface, 5c...Bottom surface, 6,6A...Irradiation element, 7...Battery, 8...Switch, 9...Timer, 11...Beverage light emitting device, 12...Substrate covering part, 13...Top Covering portion, 14...lower covering portion, 14b...side portion, 14c...bottom portion, 21...beverage light-emitting device, 24...convex portion, 24b...side portion, 24c...upper surface, 31...beverage light-emitting device, 34...convex portion, 34b...curved surface, 34c...upper surface, 41...beverage light-emitting device, 42A, 42B...mounting portion, 43A...cylindrical portion, 43b...opening, 43B...cylindrical portion, 43c...side portion, 43f...inner surface, 43g...opening, 43h...side Surface portion, 43j...inner peripheral surface, 44A, 44B...projection portion, 45...bottom portion, 46...substrate placement portion, 51...beverage light emitting device, 52A, 52B...mounting portion, 53A, 53B...cylindrical portion, 61...beverage light emitting device, 62A, 62B...mounting portion, 63A, 63B...cylindrical portion, 64A, 64B...projection portion, 71...beverage light emitting device, 72...mounting portion, 73...cylindrical portion, 74...finger hook portion, 74A...first ring-shaped portion, 74B... Second ring-shaped portion, 81...beverage light-emitting device, 82...mounting portion, 83...cylindrical portion, 84...finger hook portion, 91...beverage light-emitting device, 92...mounting portion, 93...cylindrical portion, 94...finger hook portion, 94b...top portion, 94c...end portion, 94d...curved portion, B...foam, C...beverage container, C1...bottom, C2...outer surface, D...beverage, E1, E2...virtual circle, F...frosty mist, H...light, L...liquid, O...center, X...axis.

Claims

1. A beverage light emitting device that is attached to a beverage container that contains a beverage and irradiates light onto the beverage through the beverage container, a cylindrical portion having an opening through which the beverage container is inserted; an illumination element that illuminates the beverage container inserted into the cylindrical portion through the opening; a protrusion protruding from an inner peripheral surface of the cylindrical portion and abutting against an outer peripheral surface of the beverage container inserted into the cylindrical portion through the opening to fix the beverage container to the cylindrical portion; Equipped with Beverage lighting device.

2. The cylindrical portion has a plurality of protruding portions arranged in a circumferential direction thereof. The beverage lighting device of claim 1 .

3. The cylindrical portion and the protruding portion are made of a flexible material. The beverage lighting device according to claim 1 or 2.

4. The convex portion has a flat top surface that contacts the outer circumferential surface of the beverage container. The beverage lighting device according to claim 1 or 2.

5. A substrate on which the irradiation element is mounted, The cylindrical portion has a bottom portion having a through hole formed therein that penetrates the cylindrical portion in an axial direction, which is a direction in which an axis of the cylindrical portion extends, The substrate is fixed to the bottom with the irradiation element inserted into the through hole. The beverage lighting device according to claim 1 or 2.

6. A battery is provided mounted on the substrate and inserted into the through hole, The illumination element obtains power from the battery and emits the light.

6. The beverage lighting device of claim 5.

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