JP2025068050A - Light emitting tool - Google Patents

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

The present invention relates to a light-emitting device.

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 together, for example, using an adhesive. The light-transmitting body 203 is shaped like a certain kind of container with a narrow opening 211 and a large internal space 213.

The gripping part 205 is provided with a light-emitting part 215 made of an LED. The gripping part 205 is installed 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.

In the light-emitting device 201, a film-like member 217 is installed inside the light-transmitting body 203. 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 of the light-transmitting body 203.

In addition, 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, once the film-like member 217 is installed in the light-emitting device 201, it is extremely difficult to replace it.

Therefore, 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.

The gripping part 305 is provided with a light emitting part 313. The film-like member 307 is placed inside the light transmitting body 303, the gripping part 305 is placed at the 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 of the light transmitting body 303.

Patent No. 6839428

In the light emitting device 301, the member 309 is provided with a protruding male thread forming portion 317, and the member 311 is also provided with a protruding male thread forming portion 319. The nut member 323 is screwed into the male thread portion 321 formed by placing the member 311 on the member 309, thereby ensuring that the members 309 and 311 are locked together at the tip portions (the ends opposite the grip portion 305) of the members 309 and 311.

The engagement between members 309 and 311 at the base ends (the ends on the gripping portion 305 side) of members 309 and 311 is ensured by the ring-shaped member and gripping portion 305.

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.

The present invention aims to provide a light-emitting device that can simplify the configuration of the light-transmitting body by reducing the number of parts that make up the light-transmitting body, and that allows easy replacement of the film-like member.

The invention described in claim 1 is a light-emitting device having a first light-transmitting body construct having a first contact portion, a second light-transmitting body construct having a second contact portion, and a hinge portion provided between the first light-transmitting body construct and the second light-transmitting body construct, and when the first light-transmitting body construct is placed on the second light-transmitting body construct by bringing the first contact portion into contact with the second contact portion, a cylindrical portion having an engaged portion and a light-transmitting body main body portion protruding from one end of the cylindrical portion and connected to an external space through the inside of the cylindrical portion are formed, and a light-emitting part and a locking part are provided, and when the cylindrical portion is placed so that the engaged portion is engaged with the locking part, the light-emitting part has a gripping part in which the light-emitting part emits light toward the light-transmitting body main body.

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

The invention described in claim 3 is the light-emitting device described in claim 1 or claim 2, which has a light-transmitting body support body installed in the cylindrical portion to maintain the state in which the first light-transmitting body structure is installed in the second light-transmitting body structure before the engaged portion is engaged with the engaging portion.

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, and 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, and 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 construct is placed on the first light-transmitting body construct, the edge of the first light-transmitting body main body forming part of the first light-transmitting body construct is in contact with the edge of the second light-transmitting body main body forming part of the second light-transmitting body construct, and when the second light-transmitting body construct is placed on the first light-transmitting body construct, the linear edge of the semi-cylindrical first tubular part forming part of the first light-transmitting body construct is in contact with the linear edge of the semi-cylindrical second tubular part forming part of the second light-transmitting body construct.

The invention described in claim 5 is a light-emitting device described in any one of claims 1 to 4, in which the hinge portion of the light-transmitting body does not protrude from the outer surface of the light-transmitting body main body.

The present invention has the effect of reducing the number of parts constituting the light-transmitting body, simplifying the structure of the light-transmitting body, and providing a light-emitting device in which the film-like member is easily replaced.

1A and 1B are diagrams showing a schematic configuration of a light-emitting device according to an embodiment of the present invention, and FIG. 1B is a view taken along the line IB in FIG. 2A is a cross-sectional view taken along line IIA-IIA in FIG. 1, and FIG. 2B is a cross-sectional view taken along line IIB-IIB in FIG. 1A 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, and FIG. 1B is a view taken along the arrow IIIB in FIG. 4A and 4B are diagrams 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, and FIG. 4B is a view taken along the arrow IVB in FIG. 4A and 4B are diagrams showing a grip portion of the light-emitting tool according to the embodiment of the present invention. 6A and 6B are diagrams showing a light-transmitting body support body of a light-emitting device according to an embodiment of the present invention, and FIG. 6B is a view taken along the line VIB in FIG. FIG. 13 is a diagram showing a light-transmitting body of a light-emitting device according to a first modified example. 13A and 13B are diagrams showing a light-transmitting body of a light-emitting device according to a second modified example. 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. FIG. 13 is a diagram showing the light-transmitting body of the light-emitting device according to the 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. 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. 13A and 13B are diagrams showing a light-transmitting body of a light-emitting device according to a fourth modified example. FIG. 1 is a diagram showing a schematic configuration of a conventional light-emitting device. FIG. 1 is a diagram showing a schematic configuration of a conventional light-emitting device.

The light-emitting device 1 according to the embodiment of the present invention is used by being held in the hand of 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.

Here, for ease of explanation, one specific direction is defined as the vertical direction, another specific direction perpendicular to this vertical direction is defined as the horizontal direction, and the direction perpendicular to the vertical and horizontal directions is defined as the thickness direction.

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.

The second light-transmitting body construct 9 is designed to be easily attached and detached (removable) from 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, thereby forming the cylindrical portion 15 and the light-transmitting body main body portion 17.

A locking portion 19 is provided on the outer periphery of the cylindrical portion 15. The locking 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 vertically and horizontally from one end of the cylindrical portion 15 in the extension direction of the tube (extension 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.

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.

As already understood, the light-transmitting body 3 is formed by the cylindrical portion 15 and the light-transmitting body main body portion 17. By placing the second light-transmitting body constituent 9 on the first light-transmitting body constituent 7, for example, the light-transmitting body 3 is formed 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.

Let us assume that there is no leakage of liquid from the contact points where the first light-transmitting body construct 7 and the second light-transmitting body construct 9 are in direct contact with each other when 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 leak-free light-transmitting body 3 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.

The first light-transmitting body construct 7 has a first contact portion 23, and the second light-transmitting body construct 9 has a second contact portion 25. The first contact portion 23 is a portion that contacts the second light-transmitting body construct 9 when 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 when the second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7.

The first engagement portion 11 is formed from a part of the first contact portion 23 (the part opposite the grip portion 5; the part at the vertical tip end), and the second engagement portion 13 is formed from a part of the second contact portion 25 (the part opposite the grip portion 5; the part at the vertical tip end).

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

The second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7, and the engaging portion 19 of the tubular portion 15 is engaged with the engaging portion 29 of the gripping portion 5, so that the first light-transmitting body construct 7, the second light-transmitting body construct 9, and the gripping portion 5 are integrated.

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 installed 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.

In other words, when the film-like member 31 is installed on the light-transmitting body 3, the film-like member 31 is deployed so as to be almost 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.

The light emitted by the light-emitting section 27 passes through the film-like member 31 and then 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 glowing.

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.

The film-like member 31 is formed in a thin membrane shape, has low rigidity, and is easily deformed, for example, by applying force with a human finger. However, if the deformation is due to a force of a human finger, the film-like member 31 will return 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.

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.

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 that is roughly similar to the curved surface of the inner surface 18 of the light-transmitting body main body 17.

When the film-like member 31 is installed in the light-transmitting body 17, the film-like member 31 hardly moves relative to the light-transmitting body 17 (light-transmitting body 3).

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 in the tubular portion 15 (vertically on the tip side of the tubular portion 15; vertically on the side of the light-transmitting body main body 17). The light-transmitting body support 37 maintains the engagement state between the first light-transmitting body configuration 7 and the second light-transmitting body configuration 9 before the locked portion 19 of the tubular portion 15 is locked to the locking portion 29 of the grip portion 5.

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

When the second light-transmitting body construct 9 is installed on the first light-transmitting body construct 7 and 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 capable of moving in a predetermined direction (vertical base end side) relative to the first light-transmitting body construct 7 and the second light-transmitting body construct 9. This movement causes the light-transmitting body support 37 to move away from the cylindrical portion 15 of the first light-transmitting body construct 7 and the second light-transmitting body construct 9.

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

A semicylinder is one of the two three-dimensional shapes that are formed when a cylinder is divided into two by a plane that contains the central axis.

The second light-transmitting body construct 9, like the first light-transmitting body construct 7, is formed with a semi-cylindrical second tubular portion forming portion 45 and a bowl- or dish-shaped (deep dish-shaped) second light-transmitting body main body forming portion 47 protruding from one end of the second tubular 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.

The straight edge 51 of the first cylindrical portion forming portion 39 of the first light transmitting body construct 7 and the curved edge 53 of the first light transmitting body main body forming portion 41 of the first light transmitting body construct 7 form the first contact portion 23, and are formed on approximately one plane 59.

When viewed from a direction perpendicular to one plane 59 (thickness direction), almost the entire first concave surface 43 is visible. Also, as shown in FIG. 3(a), when viewed from a direction perpendicular to one plane 59, the entire first concave surface 43 may be completely visible.

The following further describes the mode in which the entire first concave surface 43 is completely visible. 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 filled with a solid body. After this, the solid body 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 body 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.

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

The first light-transmitting body construct 7 and the second light-transmitting body construct 9 will now be described in further detail. The first light-transmitting body construct 7 and the second light-transmitting body construct 9 have slightly different shapes of their edges (contact portions 23, 25) except for the semicircular edge portion 61 at the end of the first cylindrical portion forming portion 39 and the semicircular edge portion 63 at the end of the second cylindrical portion forming portion 45. In other words, the first light-transmitting body construct 7 and the second light-transmitting body construct 9 have the same shapes except for the edges (contact portions 23, 25).

The first film-like member construct 33 constituting 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 part 41 of the first light-transmitting body construct 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 part 41.

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 roughly 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 roughly the same.

When the second light-transmitting body construct 9 is installed on the first light-transmitting body construct 7, the edge 53 of the first light-transmitting body main body forming part 41 of the first light-transmitting body construct 7 contacts the edge 54 of the second light-transmitting body main body forming part 47 of the second light-transmitting body construct 9.

In addition, when the second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7, the linear edge 51 of the semi-cylindrical first tubular portion forming portion 39 contacts the linear edge 52 of the semi-cylindrical second tubular portion forming portion 45.

In addition, in the light-emitting device 1, the outer line 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. In other words, there are no unsightly protrusions on the outer line of the light-transmitting body main body 17, and it appears to be smoothly curved. Note that even if there is a very small protrusion on the outer line 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 line of the light-transmitting body main body 17.

In addition, the light-emitting device 1 may be configured such that the outer contour of the light-transmitting body 17 is smoothly curved, except for the boundary between the cylindrical portion 15 and the light-transmitting body 17, when viewed from any direction.

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 cylindrical 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.

The light-emitting device 1 will now be described in more detail. The first light-transmitting body structure 7 and the second light-transmitting body structure 9 are made of a transparent or semi-transparent synthetic resin, and are rigid enough to hardly deform.

The first cylindrical portion forming portion 39 of the first light-transmitting body structure 7 is formed in a semi-cylindrical shape. The central axis of the semi-cylinder extends vertically. A male thread portion 65 that constitutes the locked portion 19 is formed on the outer peripheral surface of the first cylindrical portion forming portion 39. The tip end portion of the outer peripheral 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.

The first light transmitting body forming part 41 is formed in a shape that is appropriately modified from a specific 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 specific height in the thickness direction. When the first light transmitting body forming part 41 is viewed in the thickness direction, it is formed in a heart shape.

The first engagement portion 11 of the first light transmitting body forming portion 41 is configured with an "L" shaped protrusion 73 as shown in FIG. 2(a). The engagement portion 11 is formed at the location indicated by the two-dot chain line L1 in FIG. 1.

A rectangular convex portion 75 is formed on the first contact portion 23 of the first light transmitting body forming portion 41 other than the first engagement portion 11, as shown in FIG. 2(b).

The second cylindrical portion forming portion 45 of the second light-transmitting body structure 9 is also formed in a semi-cylindrical shape. The central axis of the semi-cylinder extends vertically. A male thread portion 65 that constitutes the locked portion 19 is also formed on the outer circumferential surface of the second cylindrical portion forming portion 45. The tip end portion of the outer circumferential surface of the second cylindrical portion forming portion 45 forms 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.

The second light transmitting body forming part 47 is also formed into a shape that is appropriately modified from a specific plate-shaped member, and is formed into a deep dish shape with 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.

The second engagement portion 13 of the second light transmitting body forming portion 47 is configured as an "L" shaped protrusion 77 as shown in FIG. 2(a). The engagement portion 13 is also formed at the location indicated by the two-dot chain line L1 in FIG. 1.

A rectangular convex portion 79 is formed on the second contact portion 25 of the second light transmitting body forming portion 47 other than the second engagement portion 13, as shown in FIG. 2(b).

When the second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7, as shown in FIG. 2(a), the convex portion 73 of the first light-transmitting body construct 7 fits into a location 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 location where the convex portion 73 of the first light-transmitting body construct 7 does not exist.

In addition, when the second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7, as shown in FIG. 2(b), the convex portion 75 of the first light-transmitting body construct 7 fits into a location where the convex portion 79 of the second light-transmitting body construct 9 does not exist. In addition, the convex portion 79 of the second light-transmitting body construct 9 fits into a location where the convex portion 75 of the first light-transmitting body construct 7 does not exist.

This prevents the second light-transmitting body structure 9 from moving vertically or horizontally relative to the first light-transmitting body structure 7. Furthermore, as can be seen from Figure 2(a), movement in the thickness direction is also virtually impossible, since it is fixed at the tip end in the vertical direction.

The light-transmitting body support 37 is, for example, made of a highly rigid synthetic resin and is formed in a circular ring shape as shown in FIG. 6. When the second light-transmitting body construct 9 is installed on the first light-transmitting body construct 7, the light-transmitting body support 37 fits into the male-threaded non-forming portion 67 of the cylindrical portion 15 outside the male-threaded 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.

As shown in FIG. 4, the first film-like member construct 33 is formed into a shape that is appropriately modified from a specific thin plate-like member, and is formed into a deep dish shape with 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.

The gripping portion 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 vertical tip of the gripping portion 5.

Inside the housing 85 are a battery 89, a control unit 91 including a CPU and memory, a 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.

A female screw portion 95 that constitutes the locking portion 29 is provided at the vertical tip inside the housing 85. By placing the second light-transmitting body structure 9 on the first light-transmitting body structure 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 placed 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.

Here, we will explain how to assemble the light-emitting device 1.

In the initial state, the gripping portion 5, the first light-transmitting body structure 7, the second light-transmitting body structure 9, the first film-like member structure 33, the second film-like member structure 35, and the light-transmitting body support 37 are separate.

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.

Then, a second light-transmitting body structure 9 is placed on the first light-transmitting body structure 7, and a light-transmitting body support 37 is placed on the first light-transmitting body structure 7 and the second light-transmitting body structure 9.

Then, the light-emitting device 1 is obtained by attaching the gripping portion 5 to the first light-transmitting body structure 7 and the second light-transmitting body structure 9.

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.

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 constituent 7 and the second light-transmitting body constituent 9, making it easy to replace the film-like member 31. In addition, the light-transmitting body 3 is composed of only the first light-transmitting body constituent 7 and the second light-transmitting body constituent 9, reducing the number of parts that make up the light-transmitting body 3 and simplifying the configuration of the light-transmitting body 3.

In addition, in the light-emitting device 1, the first engagement portion 11 of the first light-transmitting body construct 7 is formed from a part of the first contact portion 23, and the second engagement portion 13 of the second light-transmitting body construct 9 is formed from a part of the second contact portion 25. This makes it easy to give the light-transmitting body 3 a neat appearance without any unnecessary protrusions for joining the light-transmitting body constructs 7 and 9 together.

In addition, 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 17, and is arranged to be installed inside the light-transmitting body main body 17 so as to conform to the inner surface 18 of the light-transmitting body main body 17.

This makes it easier to install the film-like member 31 on the light-transmitting body 3, and the position of the film-like member 31 relative to the light-transmitting body 3 is stable after installation. Even if the light-emitting device 1 is shaken strongly, problems such as the film-like member 31 becoming misaligned can be prevented.

In addition, in the light-emitting device 1, 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 is locked to the locking portion 29. This allows the first light-transmitting body construct 7 and the second light-transmitting body construct 9 to be properly maintained in provisionally locked state in cooperation with the respective locking portions 11 and 13, making it easier to install the gripping portion 5 on the light-transmitting body 3.

In addition, in the light-emitting device 1, the first light-transmitting body construct 7 is formed with a first cylindrical portion forming portion 39 and a first light-transmitting body main body forming portion 41, and 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 a second concave surface 49 is formed in the second light-transmitting body construct 9.

When the second light-transmitting body construct 9 is placed on the first light-transmitting body construct 7, the edge 53 of the first light-transmitting body main body forming portion 41 of the first light-transmitting body construct 7 and the edge 53 of the second light-transmitting body main body forming portion 47 of the second light-transmitting body construct 9 are in contact with each other.

This makes it easier to eliminate undercuts when molding the first light-transmitting body 7 and the second light-transmitting body 9, reducing the manufacturing costs of the mold, etc.

In addition, according to the light-emitting device 1, the external contour of the light-transmitting body main body 17 is smoothly curved no matter what direction it is viewed from. 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.

The manner in which the first light-transmitting body structure 7 and the second light-transmitting body structure 9 are engaged may be modified as shown in Figures 7 to 12.

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

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 the recesses provided in the first light-transmitting body construct 7 and the second light-transmitting body construct 9, and does not protrude from the first light-transmitting body construct 7 and the second light-transmitting body construct 9. The first light-transmitting body construct 7 and the snap 97 are integrally molded.

In the embodiment 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 need to be formed in such a shape, and the outer shape may be a smooth shape such as a heart shape.

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 molded with the first light-transmitting body structure 7 and the second light-transmitting body structure 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.

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

As shown in FIG. 9, when the first light-transmitting body structure 7 and the second light-transmitting body structure 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 structure 7 and the second light-transmitting body structure 9 are open, there is bending at the bending line 107. In the state shown in FIG. 10 and FIG. 11, there is a valley fold at the bending line 107 shown in FIG. 9.

In the embodiment shown in Figures 9 to 11, the hinge portion 99 does not protrude either to the outside or to the inside of the first light-transmitting body structure 7 or the second light-transmitting body structure 9.

In the embodiment shown in FIG. 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.

The first engagement portion 11 of the first light-transmitting body structure 7 shown in FIG. 12 is formed as a "T"-shaped convex portion 101. The second engagement portion 13 of the second light-transmitting body structure 9 shown in FIG. 12 is formed as a "T"-shaped concave portion 103.

Although the present embodiment has been described above, the present embodiment is not limited to these, and various modifications are possible within the scope of the gist of the present embodiment.

LIST OF SYMBOLS 1 Light emitting device 5 Grip portion 7 First light transmitting body structure 9 Second light transmitting body structure 11 First engagement portion 13 Second engagement portion 15 Cylindrical portion 17 Light transmitting body main body portion 18 Inner surface of light transmitting body main body portion 19 Locked portion 27 Light emitting portion 29 Locking portion 31 Film-like member 37 Light transmitting body support 39 First cylindrical portion forming portion 41 First light transmitting body main body forming portion 43 First concave surface 45 Second cylindrical portion forming portion 47 Second light transmitting body main body forming portion 49 Second concave surface 53 Edge portion of first light transmitting body main body forming portion 54 Edge portion of second light transmitting body main body forming portion 61 Edge portion of first cylindrical portion forming portion 63 Edge portion of second cylindrical portion forming portion

Claims (5)

a light-transmitting body comprising a first light-transmitting body construct having a first contact portion, a second light-transmitting body construct having a second contact portion, and a hinge portion provided between the first light-transmitting body construct and the second light-transmitting body construct, wherein when the first light-transmitting body construct is placed on the second light-transmitting body construct by bringing the first contact portion into contact with the second contact portion, a tubular portion having a locked portion and a light-transmitting body main body portion protruding from one end of the tubular portion and connected to an external space through the inside of the tubular portion are formed;
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;
A light-emitting device having the above structure. The light-emitting device according to claim 1, which has a film-like member formed in a shape that fits the inner surface of the light-transmitting body and is placed inside the light-transmitting body so as to fit the inner surface of the light-transmitting body. The light-emitting device according to claim 1 or 2, which has a light-transmitting body support body installed in the cylindrical portion to maintain the first light-transmitting body structure installed in the second light-transmitting body structure in a state before the locked portion is locked to the locking portion. 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. The light-emitting device according to any one of claims 1 to 4, wherein the hinge portion of the light-transmitting body does not protrude from the outer surface of the light-transmitting body main body.

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