Illumination equipment

Abstract

To provide a light emitting tool which can simplify the constitution of a light transmission body by reducing the number of components constituting the light transmission body, and which can easily replace a film-like member.SOLUTION: A light emitting tool includes: a first light transmission body constituent 7 in which a first engagement part 11 is provided; a second light transmission body constituent 9 in which a second engagement part 13 is provided, which can be freely attached to / detached from the first light transmission body constituent 7, which forms a cylindrical portion 15 including a part 19 to be locked and a light transmission body body part 17 protruding from one end of the cylindrical portion 15 by engaging the second engagement part 13 with the first engagement part 11 and being installed at the first light transmission body constituent 7; and a grip part 5 which includes a light emitting part 27 and a locking part 29, and in which the light emitting part 27 emits light toward the light transmission body body part 17 when the cylindrical portion 15 is installed so that the part 19 to be locked is locked to the locking part 29.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a light emitting device. [Background technology]

[0002] Conventionally, a light emitting device 201 having a light transmitting body 203 and a gripping part 205 as shown in Fig. 13 is known. The light transmitting body 203 is formed by joining two members 207 and 209 to each other using, for example, an adhesive. The light transmitting body 203 is shaped like a certain kind of container having a narrow opening 211 and a large internal space 213.

[0003] The gripping part 205 is provided with a light emitting part 215 configured with an LED. The gripping part 205 is placed at the opening 211 of the light transmitting body 203 so that the light emitted by the light emitting part 215 is irradiated into the internal space 213 of the light transmitting body 203.

[0004] In the light emitting device 201, a film-like member 217 is placed inside the light transmitting body 203. Then, the light emitted by the light emitting part 215 passes through the film-like member 217 and the light transmitting body 203, and comes out to the outside of the light transmitting body 203.

[0005] Furthermore, in the light emitting device 201, the internal space 213 of the light transmitting body 203 is wider than the opening 211 of the light transmitting body 203. When replacing the film-like member 217, it is necessary to pass the film-like member 217 through the narrow opening 211. Therefore, in the light emitting device 201, it is extremely difficult to replace the film-like member 217 once it has been installed.

[0006] In view of this, a light emitting device 301 as shown in Fig. 14 has been proposed (see Patent Document 1). The light emitting device 301 is configured to include a light transmitting body 303, a gripping portion 305, and a film-like member 307. In the light emitting device 301, the light transmitting body 303 is configured to include two members 309, 311. The two members 309, 311 are detachable from each other. This makes it easy to replace the film-like member 307.

[0007] The gripping part 305 is provided with a light emitting part 313. A film-like member 307 is placed inside the light transmitting body 303, the gripping part 305 is placed at an opening 315 of the light transmitting body 303, and the light emitting part 313 emits light. As a result, the light emitted by the light emitting part 313 passes through the film-like member 307 and the light transmitting body 303, and comes out to the outside of the light transmitting body 303. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent No. 6839428 Summary of the Invention [Problem to be solved by the invention]

[0009] Incidentally, in the light emitting device 301, a male thread forming portion 317 is provided protruding from the member 309, and a male thread forming portion 319 is also provided protruding from the member 311. Then, by screwing a nut member 323 into a male thread portion 321 formed by placing the member 311 on the member 309, an engagement state between the members 309 and 311 is ensured at the tip portions (ends opposite to the grip portion 305) of the members 309 and 311.

[0010] The locked state of members 309 and 311 at the base ends (ends on the gripping portion 305 side) of members 309 and 311 is ensured by the ring-shaped member and gripping portion 305.

[0011] However, although the film-like member 307 of the light emitting device 301 can be easily replaced, the number of parts constituting the light transmitting body 303 is large, making the structure of the light transmitting body 303 complicated.

[0012] An object of the present invention is to provide a light-emitting device that can simplify the configuration of a light-transmitting body by reducing the number of parts that make up the light-transmitting body, and that allows easy replacement of a film-like member. [Means for solving the problem]

[0013] The invention described in claim 1 includes a first light-transmitting body construct having a first engaging portion; a second light-transmitting body construct having a second engaging portion, which is detachable from the first light-transmitting body construct and is installed on the first light-transmitting body construct by engaging the second engaging portion with the first engaging portion to form a tubular portion having an engaged portion and a light-transmitting body main body portion protruding from one end of the tubular portion and connected to an outside space through the inside of the tubular portion; and a gripping portion having a light-emitting portion and an engaging portion, whereby the light-emitting portion emits light toward the light-transmitting body main body portion when the tubular portion is installed such that the engaged portion is engaged with the engaging portion. The first light-transmitting body structure has a first contact portion, the second light-transmitting body structure has a second contact portion, the first contact portion is a portion that contacts the second light-transmitting body structure when the second light-transmitting body structure is placed on the first light-transmitting body structure, the second contact portion is a portion that contacts the first light-transmitting body structure when the second light-transmitting body structure is placed on the first light-transmitting body structure, the first engagement portion is formed of a part of the first contact portion, and the second The engaging portion is formed of a part of the second contact portion, the first engaging portion is formed of a convex portion having an "L" shaped cross section, the second engaging portion is also formed of a convex portion having an "L" shaped cross section, and when the second light transmitting body structure is placed on the first light transmitting body structure, the convex portion of the first light transmitting body structure fits into a portion where a convex portion of the second light transmitting body structure is not present, and the convex portion of the second light transmitting body structure fits into a portion where a convex portion of the first light transmitting body structure is not present. It is a light-emitting device.

[0014] The invention described in claim 2 is a light-emitting device described in claim 1, which has a film-like member that is formed into a shape that fits along the inner surface of the light-transmitting body main body and is placed inside the light-transmitting body main body so as to fit along the inner surface of the light-transmitting body main body.

[0015] The invention described in claim 3 is a light-emitting device as described in claim 1 or claim 2, which has a light-transmitting body support body installed in the tubular portion to maintain the engagement state between the first light-transmitting body structure and the second light-transmitting body structure before the engaged portion is engaged with the engaging portion.

[0016] The invention described in claim 4 is such that the first light transmitting body construct is formed with a semi-cylindrical first tubular portion forming portion and a bowl- or dish-shaped first light transmitting body main body forming portion protruding from one end of the first tubular portion forming portion in the tube extension direction, so that a first concave surface is formed in the first light transmitting body construct, and the second light transmitting body construct is formed with a semi-cylindrical second tubular portion forming portion and a bowl- or dish-shaped second light transmitting body main body forming portion protruding from one end of the second tubular portion forming portion, so that a second concave surface is formed in the second light transmitting body construct. The light-emitting device according to any one of claims 1 to 3, wherein, when the second light-transmitting body structure is placed on the first light-transmitting body structure, an edge portion of the first light-transmitting body main body forming portion of the first light-transmitting body structure is in contact with an edge portion of the second light-transmitting body main body forming portion of the second light-transmitting body structure, and when the second light-transmitting body structure is placed on the first light-transmitting body structure, a linear edge portion of the semi-cylindrical first tubular portion forming portion of the first light-transmitting body structure is in contact with a linear edge portion of the semi-cylindrical second tubular portion forming portion of the second light-transmitting body structure.

[0017] The invention described in claim 5 is The "L"-shaped convex portion constituting the first engagement portion is provided on the edge portion of the first light transmission body main body forming portion over a predetermined length in the extension direction of the edge portion of the first light transmission body main body forming portion, and protrudes toward the second light transmission body construct when the second light transmission body construct is placed on the first light transmission body construct, and the "L"-shaped convex portion constituting the second engagement portion is provided on the edge portion of the second light transmission body main body forming portion over a predetermined length in the extension direction of the edge portion of the second light transmission body main body forming portion, and protrudes toward the first light transmission body construct when the second light transmission body construct is placed on the first light transmission body construct. The light emitting device is as described above. Effect of the Invention

[0018] According to the present invention, it is possible to reduce the number of parts that make up the light-transmitting body, thereby simplifying the structure of the light-transmitting body, and it is also possible to provide a light-emitting device in which the film-like member can be easily replaced. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is a diagram showing a schematic configuration of a light emitting device according to an embodiment of the present invention, where (b) is a view taken along the line IB in (a). [Diagram 2] 2A is a view showing a cross section taken along line IIA-IIA in FIG. 1, and FIG. 2B is a view showing a cross section taken along line IIB-IIB in FIG. [Diagram 3]FIG. 3 is a diagram showing a first light-transmitting body structure (second light-transmitting body structure) that forms the light-transmitting body of a light-emitting device according to an embodiment of the present invention, where (b) is a view taken along the arrow IIIB in (a). [Figure 4] FIG. 4(b) is a view taken along the line IVB in FIG. 4(a), showing a first film-like member structure (second film-like member structure) forming a film-like member of a light-emitting device according to an embodiment of the present invention. [Diagram 5] 4A and 4B are diagrams showing a grip portion of the light-emitting tool according to the embodiment of the present invention. [Figure 6] FIG. 2 is a diagram showing a light-transmitting body supporting body of a light-emitting device according to an embodiment of the present invention, and (b) is a view taken along the line VIB in (a). [Figure 7] FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a first modified example. [Figure 8] FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a second modified example. [Figure 9] FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a third modified example, showing a state in which the first light-transmitting body structure and the second light-transmitting body structure are closed. [Figure 10] FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a third modified example, showing a state in which the first light-transmitting body structure and the second light-transmitting body structure are in the middle of being opened. [Figure 11] FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a third modified example, showing a state in which the first light-transmitting body structure and the second light-transmitting body structure are opened. [Figure 12] FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a fourth modified example. [Figure 13] FIG. 1 is a diagram showing a schematic configuration of a conventional light-emitting device. [Figure 14] FIG. 1 is a diagram showing a schematic configuration of a conventional light-emitting device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The light emitting device 1 according to the embodiment of the present invention is used by being held by a participant of an event held at a concert venue, for example, and is configured with a light transmitting body 3 and a grip part 5, as shown in Fig. 1. The light emitting device 1 may also be called a penlight.

[0021] Here, for convenience of explanation, a given direction is defined as a vertical direction, another given direction perpendicular to the vertical direction is defined as a horizontal direction, and a direction perpendicular to the vertical and horizontal directions is defined as a thickness direction.

[0022] The light transmitting body 3 is composed of a first light transmitting body construct 7 and a second light transmitting body construct 9. The first light transmitting body construct 7 is provided with a first engagement portion 11. The second light transmitting body construct 9 is provided with a second engagement portion 13.

[0023] The second light transmitting body construct 9 is adapted to be easily attached and detached (detachably attached) to the first light transmitting body construct 7. The second engaging portion 13 is engaged with the first engaging portion 11 to place the second light transmitting body construct 9 on the first light transmitting body construct 7, whereby the cylindrical portion 15 and the light transmitting body main body portion 17 are formed.

[0024] A locked portion 19 is provided on the outer periphery of the cylindrical portion 15. The locked portion 19 may be provided on another portion, such as the inner periphery of the cylindrical portion 15. The light-transmitting body main body 17 protrudes in the vertical and horizontal directions from one end of the cylindrical portion 15 in the extending direction of the tube (extending direction of the central axis of the tube; vertical direction). The light-transmitting body main body 17 is also connected to the space outside the light-transmitting body 3 through the inside of the cylindrical portion 15.

[0025] The fact that the second light-transmitting body structure 9 can be easily attached and detached to the first light-transmitting body structure 7 also means that the first light-transmitting body structure 7 can be easily attached and detached to the second light-transmitting body structure 9.

[0026] As already understood, the light transmitting body 3 is formed by the cylindrical portion 15 and the light transmitting body main body 17. The second light transmitting body construct 9 is placed on the first light transmitting body construct 7, thereby forming the light transmitting body 3, for example, without using anything else. In the light transmitting body 3, for example, an opening 21 is formed only at the other end of the cylindrical portion 15.

[0027] It is assumed that there is no liquid leakage from the contact area where the first light transmitting body construct 7 and the second light transmitting body construct 9 are in direct contact with each other in a state where the second light transmitting body construct 9 is placed on the first light transmitting body construct 7. In this hypothetical case, water is poured into the light transmitting body 3 from which there is no liquid leakage, with the cylindrical portion 15 on top and the light transmitting body main body portion 17 on the bottom. Then, water will not leak from the light transmitting body 3 unless it overflows from the opening 21 of the cylindrical portion 15.

[0028] Further, a first contact portion 23 exists in the first light transmitting body construct 7, and a second contact portion 25 exists in the second light transmitting body construct 9. The first contact portion 23 is a portion that contacts the second light transmitting body construct 9 in a state in which the second light transmitting body construct 9 is placed on the first light transmitting body construct 7. The second contact portion 25 is a portion that contacts the first light transmitting body construct 7 in a state in which the second light transmitting body construct 9 is placed on the first light transmitting body construct 7.

[0029] The first engagement portion 11 is formed of a part of the first contact portion 23 (the part opposite the gripping portion 5; the part at the vertical tip side), and the second engagement portion 13 is formed of a part of the second contact portion 25 (the part opposite the gripping portion 5; the part at the vertical tip side).

[0030] The gripping part 5 is configured to include a light emitting part 27 and a locking part 29. When the cylindrical part 15 of the light transmitting body 3 is placed on the gripping part 5 such that the locked part 19 is locked to the locking part 29, the light emitted by the light emitting part 27 is irradiated toward the light transmitting body main body part 17.

[0031] A second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7, and the locked portion 19 of the tubular portion 15 is locked to the locking portion 29 of the holding portion 5, so that the first light-transmitting body construct 7, the second light-transmitting body construct 9, and the holding portion 5 are integrated together.

[0032] The light emitting device 1 is also provided with a film-like member 31. The film-like member 31 is formed into a shape that fits along the inner surface of the light transmitting body main body 17, and is disposed inside the light transmitting body main body 17 so as to fit along the inner surface 18 of the light transmitting body main body 17.

[0033] That is, when the film-like member 31 is placed on the light transmitting body 3, the film-like member 31 is deployed so as to be approximately parallel to the inner surface 18 of the light transmitting body main body part 17. The film-like member 31 is either slightly separated from the inner surface 18 of the light transmitting body main body part 17 or in contact with the inner surface 18 of the light transmitting body main body part 17.

[0034] The light emitted by the light-emitting section 27 passes through the film-like member 31 and further through the light-transmitting body 3 to emerge outside the light-transmitting body 3. As a result, when the light-emitting device 1 is viewed, the light-transmitting body 3 and the film-like member 31 appear to be shining.

[0035] In addition, the light emitted by the light-emitting section 27 is diffused or irregularly reflected as it passes through the film-like member 31, which makes the overall luminous intensity of the film-like member 31 uniform, making the light emission appear more beautiful, for example.

[0036] The film-like member 31 is formed in a thin membrane shape, has low rigidity, and is easily deformed, for example, by the application of force by a person's finger. However, if the deformation is due to a force of a person's finger, the film-like member 31 returns to its original shape that conforms to the inner surface 18 of the light-transmitting body main body 17 by removing the force or applying an appropriate force in the opposite direction.

[0037] The film-like member 31 is composed of, for example, a first film-like member structure 33 and a second film-like member structure 35, similar to the first light-transmitting body structure 7 and the second light-transmitting body structure 9.

[0038] The first film-like member construct 33 and the second film-like member construct 35 are formed into a shape that conforms to the inner surface 18 of the light transmitting body main body 17, for example, by press molding using a mold. The first film-like member construct 33 and the second film-like member construct 35 may be formed into a shape that conforms to the inner surface 18 of the light transmitting body main body 17, for example, by vacuum molding using a mold. Therefore, in a state where no external force other than gravity is applied to the first film-like member construct 33 and the second film-like member construct 35, the first film-like member construct 33 is slightly smaller than the curved surface of the inner surface 18 of the light transmitting body main body 17. In addition, the first film-like member construct 33 has a shape that is roughly similar to the curved surface of the inner surface 18 of the light transmitting body main body 17. Similarly, the second film-like member structure 35 is slightly smaller than the curved surface of the inner surface 18 of the light transmitting body main body 17 and has a shape roughly similar to the curved surface of the inner surface 18 of the light transmitting body main body 17 .

[0039] In a state where the film-like member 31 is placed in the light transmitting body main body 17, the film-like member 31 hardly moves relative to the light transmitting body main body 17 (light transmitting body 3).

[0040] The light emitting device 1 is also provided with a light transmitting body support 37. The light transmitting body support 37 is arranged to be installed on the tubular portion 15 (on the tip side of the tubular portion 15 in the vertical direction; on the light transmitting body main body portion 17 side in the vertical direction). The light transmitting body support 37 maintains the engagement state between the first light transmitting body construct 7 and the second light transmitting body construct 9 before the locked portion 19 of the tubular portion 15 is locked with the locking portion 29 of the grip portion 5.

[0041] As shown in FIG. 6, the light transmitting body support 37 is formed of, for example, a ring-shaped member, and as shown in FIG. 1, is adapted to fit into the cylindrical portion 15 on the outside thereof like a hoop.

[0042] In a state where the second light transmitting body construct 9 is installed on the first light transmitting body construct 7 and further the light transmitting body support 37 is installed on the cylindrical portion 15, the first light transmitting body construct 7, the second light transmitting body construct 9 and the light transmitting body support 37 are integrated. However, the light transmitting body support 37 is configured to be able to move in one predetermined direction (towards the longitudinal base end) relative to the first light transmitting body construct 7 and the second light transmitting body construct 9. With this movement, the light transmitting body support 37 is configured to move away from the cylindrical portion 15 of the first light transmitting body construct 7 and the second light transmitting body construct 9.

[0043] As shown in FIG. 3 and other figures, the first light transmitting body constructing body 7 is formed with a semi-cylindrical first cylindrical portion forming part 39 and a bowl-shaped or dish-shaped (deep dish-shaped) first light transmitting body main body forming part 41. The first light transmitting body main body forming part 41 protrudes while spreading laterally from one end of the first cylindrical portion forming part 39 in the tube extension direction. This forms a first concave surface 43 in the first light transmitting body constructing body 7. The first concave surface 43 forms a part of the inner surface 18 of the light transmitting body 3. Note that detailed shapes of the first contact part 23 and the second contact part 25 are omitted in FIG. 3.

[0044] A semicylinder is one of two three-dimensional shapes formed when a cylinder is divided into two by a plane including the central axis.

[0045] The second light transmitting body construct 9, like the first light transmitting body construct 7, is formed with a semi-cylindrical second cylindrical portion forming portion 45 and a bowl-shaped or dish-shaped (deep dish-shaped) second light transmitting body main body forming portion 47 protruding from one end of the second cylindrical portion forming portion 45. This forms a second concave surface 49 in the second light transmitting body construct 9. The second concave surface 49 forms the remaining portion of the inner surface 18 of the light transmitting body 3.

[0046] The straight edge 51 of the first tubular portion forming portion 39 of the first light-transmitting body structure 7 and the curved edge 53 of the first light-transmitting body main body forming portion 41 of the first light-transmitting body structure 7 form the first contact portion 23, and are formed approximately on one plane 59.

[0047] Almost the entire first concave surface 43 is visible when viewed from a direction (thickness direction) perpendicular to one plane 59. Also, as shown in Fig. 3(a), the entire first concave surface 43 may be completely visible when viewed from a direction perpendicular to one plane 59.

[0048] The embodiment in which the entire first concave surface 43 is completely visible will be further described. The entire space 57 surrounded by the flesh of the first light transmitting body construct 7, one plane 59, and the semicircular surface (plane perpendicular to the vertical direction) 55 at the end of the first cylindrical portion forming portion 39 is provisionally filled with a solid. After this, the solid is moved in a direction perpendicular to the one plane 59 and away from the first light transmitting body construct 7 (toward the front side of the paper in FIG. 3(a)). If the entire first concave surface 43 is completely visible, the solid is moved away from the first light transmitting body construct 7 without getting caught by the first cylindrical portion forming portion 39 and the first light transmitting body main body forming portion 41.

[0049] The shape of the first light transmitting body construct 7 and the shape of the second light transmitting body construct 9 are approximately the same. A straight edge 52 of the second cylindrical portion forming portion 45 of the second light transmitting body construct 9 and a curved edge 54 of the second light transmitting body main body portion forming portion 47 of the second light transmitting body construct 9 form a second contact portion 25, and are formed approximately on one plane 59.

[0050] The first light transmitting body construct 7 and the second light transmitting body construct 9 will be further described. The first light transmitting body construct 7 and the second light transmitting body construct 9 have slightly different shapes of their edges (contact parts 23, 25) except for a semicircular edge 61 at the end of the first cylindrical portion forming part 39 and a semicircular edge 63 at the end of the second cylindrical portion forming part 45. That is, the first light transmitting body construct 7 and the second light transmitting body construct 9 have the same shapes except for the edges (contact parts 23, 25).

[0051] In addition, the first film-like member structure 33 that constitutes the film-like member 31 is slightly smaller than the curved surface of the concave surface 43 of the first light-transmitting body main body forming portion 41 of the first light-transmitting body structure 7, and has a shape that is roughly similar to the curved surface of the concave surface 43 of the first light-transmitting body main body forming portion 41.

[0052] The second film-like member construct 35 constituting the film-like member 31 is slightly smaller than the curved surface of the concave surface 49 of the second light transmitting body main body forming part 47 of the second light transmitting body construct 9, and has a shape that is generally similar to the curved surface of the concave surface 49 of the second light transmitting body main body forming part 47. Furthermore, the shape of the first film-like member construct 33 and the shape of the second film-like member construct 35 are generally the same.

[0053] When the second light-transmitting body structure 9 is placed on the first light-transmitting body structure 7, the edge 53 of the first light-transmitting body main body forming portion 41 of the first light-transmitting body structure 7 is in contact with the edge 54 of the second light-transmitting body main body forming portion 47 of the second light-transmitting body structure 9.

[0054] Furthermore, when the second light-transmitting body structure 9 is placed on the first light-transmitting body structure 7, the linear edge portion 51 of the semi-cylindrical first tubular portion forming portion 39 is in contact with the linear edge portion 52 of the semi-cylindrical second tubular portion forming portion 45.

[0055] Furthermore, in the light emitting device 1, the outer shape of the light transmitting body main body 17 formed by placing the second light transmitting body construct 9 on the first light transmitting body construct 1 is smoothly curved no matter what direction it is viewed from. That is, there are no unsightly protrusions on the outer shape of the light transmitting body main body 17, and it appears to be smoothly curved. Even if there is a very small protrusion on the outer shape of the light transmitting body main body 17, as long as it is not an unsightly protrusion, it is considered that there is no unsightly protrusion on the outer shape of the light transmitting body main body 17.

[0056] In addition, the light emitting device 1 may be in an embodiment in which the outer contour of the light transmitting body portion 17 is smoothly curved when viewed from any direction, except for the boundary between the tubular portion 15 and the light transmitting body portion 17.

[0057] To further explain this aspect, when the light-transmitting body 3 is viewed from any one direction, the outline (curved outline) of the light-transmitting body main body 17 emerges. This outline is smoothly curved except for the end in the extension direction (the end showing the boundary between the tubular portion 15 and the light-transmitting body main body 17). The curved outline of the light-transmitting body main body 17 is drawn in a two-dimensional coordinate system. The curved outline of the light-transmitting body main body 17 drawn in the two-dimensional coordinate system is continuously and smoothly curved. Furthermore, the curved outline of the light-transmitting body main body 17 is differentiable at all points except for the end in the extension direction.

[0058] A more detailed description will now be given of the light emitting device 1. The first light transmitting body construct 7 and the second light transmitting body construct 9 are made of a transparent or semi-transparent synthetic resin, and are rigid so as to be hardly deformed.

[0059] The first cylindrical portion forming portion 39 of the first light-transmitting body constructing body 7 is formed in a semi-cylindrical shape. The central axis of the semi-cylinder extends vertically. A male thread portion 65 constituting the locked portion 19 is formed on the outer circumferential surface of the first cylindrical portion forming portion 39. A tip end portion of the outer circumferential surface of the first cylindrical portion forming portion 39 is a male thread non-forming portion 67 where the male thread portion 65 is not formed. The thread diameter of the male thread portion 65 and the outer diameter of the male thread non-forming portion 67 are approximately equal to each other.

[0060] The first light transmitting body main body forming part 41 is formed in a shape obtained by appropriately modifying a predetermined plate-like member, and is formed in a deep dish shape with a bottom plate part 69 and a side plate part 71. The bottom plate part 69 stands up from the edge of the side plate part 71 by a predetermined height in the thickness direction. When the first light transmitting body main body forming part 41 is viewed in the thickness direction, it is formed in a heart shape.

[0061] 2(a), the first engagement portion 11 of the first light transmitting body main body forming portion 41 is configured with an "L" shaped protrusion 73. The engagement portion 11 is formed at a location indicated by a two-dot chain line L1 in FIG.

[0062] As shown in FIG. 2(b), a rectangular convex portion 75 is formed on the first contact portion 23 of the first light transmission body main body forming portion 41 other than the first engagement portion 11.

[0063] The second cylindrical portion forming portion 45 of the second light-transmitting body constructing body 9 is also formed in a semi-cylindrical shape. The central axis of the semi-cylinder extends vertically. A male thread portion 65 constituting the locked portion 19 is also formed on the outer circumferential surface of the second cylindrical portion forming portion 45. The tip side portion of the outer circumferential surface of the second cylindrical portion forming portion 45 is a male thread non-forming portion 67 where the male thread portion 65 is not formed. The thread diameter of the male thread portion 65 and the outer diameter of the male thread non-forming portion 67 are approximately equal to each other.

[0064] The second light transmitting body forming part 47 is also formed into a shape obtained by appropriately modifying a predetermined plate-like member, and is formed into a deep dish shape having a bottom plate part 69 and a side plate part 71. When the second light transmitting body forming part 47 is viewed in the thickness direction, it is formed into a heart shape.

[0065] 2(a), the second engagement portion 13 of the second light transmitting body main body forming portion 47 is configured with an “L” shaped protrusion 77. The engagement portion 13 is also formed at the location indicated by the two-dot chain line L1 in FIG.

[0066] As shown in FIG. 2(b), a rectangular convex portion 79 is formed on the second contact portion 25 of the second light transmitting body main body forming portion 47 other than the second engagement portion 13.

[0067] 2(a), in a state where the second light transmitting body construct 9 is placed on the first light transmitting body construct 7, the convex portion 73 of the first light transmitting body construct 7 fits into a portion where the convex portion 77 of the second light transmitting body construct 9 does not exist. Also, the convex portion 77 of the second light transmitting body construct 9 fits into a portion where the convex portion 73 of the first light transmitting body construct 7 does not exist.

[0068] 2(b), in a state where the second light transmitting body construct 9 is placed on the first light transmitting body construct 7, the convex portion 75 of the first light transmitting body construct 7 fits into a portion where the convex portion 79 of the second light transmitting body construct 9 does not exist. Also, the convex portion 79 of the second light transmitting body construct 9 fits into a portion where the convex portion 75 of the first light transmitting body construct 7 does not exist.

[0069] This prevents the second light transmitting body construct 9 from moving in the vertical and horizontal directions relative to the first light transmitting body construct 7. Furthermore, as can be seen from Fig. 2(a), movement in the thickness direction is also almost impossible because it is fixed at the tip end side in the vertical direction.

[0070] The light transmitting body support 37 is, for example, made of a highly rigid synthetic resin and formed into a circular ring shape as shown in Fig. 6. With the second light transmitting body construct 9 placed on the first light transmitting body construct 7, the light transmitting body support 37 fits into the male thread non-forming portion 67 of the cylindrical portion 15 outside the male thread non-forming portion 67. This prevents the second light transmitting body construct 9 from moving in the thickness direction relative to the first light transmitting body construct 7.

[0071] As shown in Fig. 4, the first film-like member construct 33 is formed into a shape obtained by appropriately modifying a predetermined thin plate-like member, and is formed into a deep dish shape having a bottom plate portion 81 and a side plate portion 83. When the first film-like member construct 33 is viewed in the thickness direction, it is formed into a heart shape. The second film-like member construct 35 is formed into the same shape as the first film-like member construct 33.

[0072] The grip part 5 is configured with a cylindrical housing 85 with a bottom made of a highly rigid synthetic resin. The central axis of the cylinder of the housing 85 extends vertically. An opening 87 is formed at the tip of the grip part 5 in the vertical direction.

[0073] Inside the housing 85, there are provided a battery 89, a control unit 91 including a CPU and a memory, the light emitting unit 27, and a light diffusing member 93. Under the control of the control unit 91, the light emitting unit 27 emits light in a predetermined pattern. The light emitted by the light emitting unit 27 passes through the light diffusing member 93 and reaches the inside of the light transmitting body 17.

[0074] A female screw portion 95 constituting the locking portion 29 is provided at the vertical tip inside the housing 85. By mounting the second light-transmitting body construct 9 on the first light-transmitting body construct 7, a male screw portion 65 is formed on the outer periphery of the cylindrical portion 15. By screwing the female screw portion 95 into the male screw portion 65, the gripping portion 5 is mounted on the light-transmitting body 3. Note that the female screw portion 95 may be configured in a different form depending on the change in the locked portion 19.

[0075] Here, the assembly of the light emitting device 1 will be described.

[0076] In the initial state, the gripping portion 5, the first light transmission body construct 7, the second light transmission body construct 9, the first film-like member construct 33, the second film-like member construct 35, and the light transmission body support 37 are separate.

[0077] In the above initial state, the first film-like member structure 33 is placed on the first light transmitting body structure 7 , and the second film-like member structure 35 is placed on the second light transmitting body structure 9 .

[0078] Next, the second light transmission body construction 9 is placed on the first light transmission body construction 7 , and the light transmission body support 37 is placed on the first light transmission body construction 7 and the second light transmission body construction 9 .

[0079] Next, the gripping portion 5 is placed on the first light-transmitting body construct 7 and the second light-transmitting body construct 9, and the light emitting device 1 is obtained.

[0080] In the light-emitting device 1, the light-transmitting body 3 is formed by a first light-transmitting body construct 7 having a first engagement portion 11 and a second light-transmitting body construct 9 having a second engagement portion 13 and being easily detachable from the first light-transmitting body construct 7.

[0081] As a result, when replacing the film-like member 31, it is sufficient to separate the light-transmitting body 3 into the first light-transmitting body construct 7 and the second light-transmitting body construct 9, facilitating replacement of the film-like member 31. In addition, since the light-transmitting body 3 is composed of only the first light-transmitting body construct 7 and the second light-transmitting body construct 9, the number of parts that make up the light-transmitting body 3 is reduced, and the configuration of the light-transmitting body 3 is simplified.

[0082] Furthermore, in the light emitting device 1, the first engagement portion 11 of the first light transmitting body construct 7 is configured from a part of the first contact portion 23, and the second engagement portion 13 of the second light transmitting body construct 9 is configured from a part of the second contact portion 25. This makes it easy to give the light transmitting body 3 an appearance with a neat shape without any unnecessary protrusions for joining the light transmitting body constructs 7, 9 to each other.

[0083] Furthermore, in the light-emitting device 1, the film-like member 33 is formed into a shape that conforms to the inner surface 18 of the light-transmitting body main body portion 17, and is arranged to be installed inside the light-transmitting body main body portion 17 so as to conform to the inner surface 18 of the light-transmitting body main body portion 17.

[0084] This makes it easier to install the film-like member 31 on the light-transmitting body 3, and after the film-like member 31 is installed, the position of the film-like member 31 relative to the light-transmitting body 3 is stabilized. Even if the light-emitting device 1 is shaken strongly, the occurrence of problems such as the film-like member 31 being displaced can be prevented.

[0085] Furthermore, in the light emitting device 1, the light transparent body support 37 maintains the engaged state between the first light transparent body construct 7 and the second light transparent body construct 9 before the locked portion 19 is locked by the locking portion 29. This allows the first light transparent body construct 7 and the second light transparent body construct 9 to be properly maintained in provisionally locked state in cooperation with the respective locking portions 11, 13, making it easier to install the gripping portion 5 on the light transparent body 3.

[0086] In the light emitting device 1, the first light transmitting body construct 7 is formed to include a first cylindrical portion forming portion 39 and a first light transmitting body main body forming portion 41, and thus a first concave surface 43 is formed in the first light transmitting body construct 7. The second light transmitting body construct 9 is also formed in the same manner as the first light transmitting body construct 7, and thus a second concave surface 49 is formed in the second light transmitting body construct 9.

[0087] Furthermore, when the second light-transmitting body structure 9 is placed on the first light-transmitting body structure 7, the edge 53 of the first light-transmitting body main body forming portion 41 of the first light-transmitting body structure 7 and the edge 53 of the second light-transmitting body main body forming portion 47 of the second light-transmitting body structure 9 are in contact with each other.

[0088] This makes it easy to eliminate undercut portions when molding the first light transmission body structure 7 and the second light transmission body structure 9, and allows the manufacturing costs of the mold and the like to be reduced.

[0089] Moreover, according to the light emitting device 1, the external contour of the light transmitting body main body 17 is smoothly curved in any direction when viewed. This gives the light transmitting body 3 a streamlined shape, and also minimizes the risk of damage to the light emitting device 1 or other objects even if the light emitting device 1 is swung and accidentally hits something else.

[0090] Incidentally, the manner of engagement between the first light transmission body construct 7 and the second light transmission body construct 9 may be modified as shown in Figs.

[0091] 7, a snap 97 that rotates relative to the first light transmission body construct 7 is provided on the first light transmission body construct 7, and the first contact portion 23 of the first light transmission body construct 7 is aligned with the second contact portion 25 of the second light transmission body construct 9. In this state, as shown in FIG. 7(a), the snap 97 is rotated in the direction of the arrow.

[0092] As a result, as shown in Fig. 7(b), the first engaging portion 11 and the second engaging portion 13 engage with each other. In the state shown in Fig. 7(b), the snap 97 fits into a recess provided in the first light transmitting body construct 7 or the second light transmitting body construct 9, and does not protrude from the first light transmitting body construct 7 or the second light transmitting body construct 9. The first light transmitting body construct 7 and the snap 97 are integrally molded.

[0093] In the embodiments shown in Figures 7 to 12, the first light-transmitting body structure 7 and the second light-transmitting body structure 9 are rectangular and angular, but they do not have to be formed in such a shape, and the outer shape may be a smooth shape such as a heart shape.

[0094] In the embodiment shown in FIG. 8, a hinge portion 99 is used as the first engagement portion 11 and the second engagement portion 13. The hinge portion 99 is integrally formed with the first light-transmitting body construct 7 and the second light-transmitting body construct 9. In the embodiment shown in FIG. 8, the hinge portion 99 is disposed outside the first engagement portion 11 and the second engagement portion 13, and protrudes slightly from the first engagement portion 11 and the second engagement portion 13. Therefore, in the embodiment shown in FIG. 8, the hinge portion 99 may be disposed inside the first engagement portion 11 and the second engagement portion 13, and the hinge portion 99 may not protrude at all from the first engagement portion 11 and the second engagement portion 13.

[0095] In the embodiment shown in Figures 9 to 11, the shape of hinge portion 99 is different from that shown in Figure 8. That is, in the embodiment shown in Figures 9 to 11, hinge portion 99 is configured to include a rectangular flat portion 109 surrounded by slit 105 and bending line 107 (dashed line in Figure 9, solid line in Figures 10 and 11).

[0096] As shown in Fig. 9, when the first light-transmitting body construct 7 and the second light-transmitting body construct 9 are closed, there is no bending at the bending line 107. In contrast, as shown in Fig. 10 and Fig. 11, when the first light-transmitting body construct 7 and the second light-transmitting body construct 9 are open, there is bending at the bending line 107. In the state shown in Fig. 10 and Fig. 11, a valley fold is made at the bending line 107 shown in Fig. 9.

[0097] In the embodiment shown in FIGS. 9 to 11, the hinge portion 99 does not protrude either to the outside or to the inside of the first light transmission body structure 7 and the second light transmission body structure 9.

[0098] In the embodiment shown in Figure 12, the second light-transmitting body structure 9 is placed on the first light-transmitting body structure 7 by sliding the second light-transmitting body structure 9, for example, vertically relative to the first light-transmitting body structure 7.

[0099] The first engagement portion 11 of the first light transmission body structure 7 shown in Fig. 12 is formed of a "T" shaped convex portion 101. The second engagement portion 13 of the second light transmission body structure 9 shown in Fig. 12 is formed of a "T" shaped concave portion 103.

[0100] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment. [Explanation of symbols]

[0101] 1 Lighting equipment 5 Gripping part 7 First light transmitting body structure 9 Second light transmitting body structure 11 First engagement portion 13 Second engagement portion 15 Cylindrical part 17 Light transmitting body part 18 Inner surface of light transmitting body 19 Locked part 27 Light-emitting part 29 Locking part 31 Film-like material 37 Light transmitting support 39 First cylindrical portion forming portion 41 First light transmitting body main body forming section 43 First concave surface 45 Second cylindrical portion forming portion 47 Second light transmitting body body forming section 49 Second concave surface 53 Edge of first light transmitting body forming portion 54 Edge of second light transmitting body forming portion 61 Edge of first cylindrical portion forming portion 63 Edge of second cylindrical portion forming portion

Claims

1. a first light transmission body structure provided with a first engagement portion; a second light-transmitting body construct that is provided with a second engaging portion and is detachable from the first light-transmitting body construct, and that is installed on the first light-transmitting body construct by engaging the second engaging portion with the first engaging portion to form a tubular portion having a locked portion and a light-transmitting body main body portion that protrudes from one end of the tubular portion and is connected to an outside space through the inside of the tubular portion; A gripping portion including a light emitting portion and a locking portion, in which when the cylindrical portion is placed so that the locked portion is locked to the locking portion, the light emitting portion emits light toward the light transmitting body; having a first contact portion is present in the first light transmission body construction, a second contact portion is present in the second light transmission body construction, the first contact portion is a portion that contacts the second light transmission body construction when the second light transmission body construction is placed on the first light transmission body construction, and the second contact portion is a portion that contacts the first light transmission body construction when the second light transmission body construction is placed on the first light transmission body construction, the first engagement portion is formed of a part of the first contact portion, and the second engagement portion is formed of a part of the second contact portion, The first engagement portion is configured with a convex portion having an “L” shaped cross section, and the second engagement portion is also configured with a convex portion having an “L” shaped cross section, A light-emitting device in which, when the second light-transmitting body structure is placed on the first light-transmitting body structure, the convex portions of the first light-transmitting body structure fit into locations where no convex portions of the second light-transmitting body structure are present, and the convex portions of the second light-transmitting body structure fit into locations where no convex portions of the first light-transmitting body structure are present.

2. 2. The light-emitting device according to claim 1, further comprising a film-like member which is formed into a shape that conforms to the inner surface of the light-transmitting body main body and which is placed inside the light-transmitting body main body so as to conform to the inner surface of the light-transmitting body main body.

3. 3. The light-emitting device as described in claim 1 or claim 2, further comprising a light-transmitting body support member installed in the tubular portion to maintain an engaged state between the first light-transmitting body structure and the second light-transmitting body structure before the engaged portion is engaged with the engaging portion.

4. the first light transmitting body construct is formed with a semi-cylindrical first tubular portion forming portion and a bowl- or dish-shaped first light transmitting body main body forming portion protruding from one end of the first tubular portion forming portion in the tube extension direction, so that a first concave surface is formed in the first light transmitting body construct; the second light transmitting body construct is formed with a semi-cylindrical second tubular portion forming portion and a bowl- or dish-shaped second light transmitting body main body forming portion protruding from one end of the second tubular portion forming portion, so that a second concave surface is formed in the second light transmitting body construct, When the second light transmission body construct is placed on the first light transmission body construct, an edge portion of a first light transmission body main body forming portion of the first light transmission body construct is in contact with an edge portion of a second light transmission body main body forming portion of the second light transmission body construct, Further, in a state where the second light-transmitting body structure is placed on the first light-transmitting body structure, a linear edge portion of the semi-cylindrical first tubular portion forming portion of the first light-transmitting body structure is in contact with a linear edge portion of the semi-cylindrical second tubular portion forming portion of the second light-transmitting body structure.

5. The "L" shaped convex portion constituting the first engagement portion is provided on the edge portion of the first light-transmitting body body forming portion over a predetermined length in the extension direction of the edge portion of the first light-transmitting body body forming portion, and protrudes toward the second light-transmitting body component when the second light-transmitting body component is placed on the first light-transmitting body component, The light-emitting device described in claim 4, wherein the ``L''-shaped convex portion constituting the second engagement portion is provided on the edge portion of the second light-transmitting body main body forming portion over a predetermined length in the extension direction of the edge portion of the second light-transmitting body main body forming portion, and protrudes toward the first light-transmitting body structure when the second light-transmitting body structure is placed on the first light-transmitting body structure.

Images