Lighting fixtures and portable lighting fixtures

Abstract

To provide a cylindrical body for a lamp fitting which achieves downsizing, and to provide a portable lamp fitting.SOLUTION: A cylindrical body 1 for a lamp fitting includes a first cylindrical body 10 including a first member 11 and a second member 12, formed into a cylindrical shape by combining the first member with the second member, and having a first connection part 15 at one opening side of the cylindrical shape; and a second cylindrical body 20 including a first holding part 22 for holding the first connection part of the first cylindrical body, configured to house a power source B, and having a cylindrical shape. The first member has: a first side wall part 11a forming a part of a side wall of the cylindrical shape and covering a part of a peripheral edge of a circuit board 60 housed in the cylindrical shape; and a first divided connection part 15a which is continuous with the first side wall part and forms a part of the first connection part. The second member has: a base 13 which is arranged so as to close the other opening of the cylindrical shape and used to place a light source 50 thereon; a second side wall part 14 which is located adjacent to a side end of the first side wall part and continuous from the base to form a side wall of the cylindrical shape and covers a part of the peripheral edge of the circuit board; and a second divided connection part 15 which is continuous with the second side wall part and forms a part of the first connection part.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a cylindrical body for a lighting fixture and a portable lighting fixture.

Background Art

[0002] Conventionally, a portable lighting fixture that a user carries and irradiates light is configured such that, for example, a cylindrical body on the light source side and a cylindrical body on the power supply side are detachably connected (see, for example, Patent Document 1). And since a plate for operating the light source is disposed on the cylindrical body on the light source side, it is necessary to form an opening capable of accommodating this plate, and it is necessary to adjust the cylindrical body on the power supply side to the size of the cylindrical body on the light source side.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An embodiment according to the present disclosure aims to provide a cylindrical body for a lighting fixture and a portable lighting fixture that can achieve miniaturization.

Means for Solving the Problems

[0005] The luminaire cylinder disclosed in the embodiment comprises a first member and a second member, the first member and the second member being combined to form a cylinder, the first cylinder having a first connecting portion on one opening side of the cylinder, and the second cylinder having a first holding portion that holds the first connecting portion of the first cylinder and housing a power supply, the first member having a first side wall portion that becomes part of the side wall of the cylinder and covers part of the periphery of a circuit board housed inside the cylinder, and a first divided connecting portion that is continuous with the first side wall portion and becomes part of the first connecting portion, the second member having a base that is arranged to close the other opening of the cylinder and on which a light source is placed, a second side wall portion that is adjacent to the side end of the first side wall portion and is continuous with the base and becomes part of the side wall of the cylinder and covers part of the periphery of the circuit board, and a second divided connecting portion that is continuous with the second side wall portion and becomes part of the first connecting portion.

[0006] Furthermore, the portable light fixture disclosed in the embodiment comprises a first member and a second member, the first member and the second member being combined to form a cylindrical shape, the first cylindrical body having a first connection portion on one opening side of the cylindrical body and a circuit board inside the cylindrical body, and the second cylindrical body having a first holding portion that holds the first connection portion of the first cylindrical body and housing a power supply, the first member having a first side wall portion that becomes part of the side wall of the cylindrical body and covers a part of the periphery of the circuit board housed inside the cylindrical body, and a first divided connection portion that is continuous with the first side wall portion and becomes part of the first connection portion, the second member having a base that is arranged to close the other opening of the cylindrical body and on which a light source is placed, a second side wall portion that is adjacent to the side end of the first side wall portion and is continuous with the base and becomes part of the side wall of the cylindrical body and covers a part of the periphery of the circuit board housed inside the cylindrical body, and a second divided connection portion that is continuous with the second side wall portion and becomes part of the first connection portion. [Effects of the Invention]

[0007] According to embodiments of this disclosure, it is possible to provide a luminaire cylinder and a portable luminaire that can be miniaturized. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic perspective view showing a portable light fixture according to an embodiment. [Figure 2] This is an exploded perspective view showing a disassembled portable light fixture according to the embodiment. [Figure 3] This is a cross-sectional view of the portable light fixture along line III-III in Figure 1. [Figure 4] This is a perspective view showing the first cylindrical body of the portable light fixture according to the embodiment separated. [Figure 5] Figure 4 is a perspective view showing the second component in the first cylindrical body of the portable light fixture. [Modes for carrying out the invention]

[0009] The embodiments of this disclosure will be described below with reference to the drawings. However, the embodiments described below are intended to embody the technical idea of ​​this disclosure and, unless otherwise specified, the invention is not limited to the embodiments described below. The content described in one embodiment is applicable to other embodiments and modifications. In addition, the drawings provide a schematic representation of the embodiments, and in order to clarify the explanation, the scale, spacing, positional relationships of each component may be exaggerated, or some components may be omitted from the illustration. The directions shown in each figure indicate the relative positions between components and are not intended to indicate absolute positions. In principle, the same names and reference numerals indicate the same or similar components, and detailed explanations are omitted as appropriate. Also, in the embodiments, "covering" is not limited to direct contact, but also includes indirect covering, for example, through other components.

[0010] [Portable light fixture] A portable light fixture 100 according to an embodiment will be described with reference to Figures 1 to 5. Figure 1 is a schematic perspective view showing the portable light fixture according to an embodiment. Figure 2 is an exploded perspective view showing the portable light fixture according to an embodiment in disassembled form. Figure 3 is a cross-sectional view of the portable light fixture along line III-III in Figure 1. Figure 4 is a perspective view showing the first cylindrical body of the portable light fixture according to an embodiment separated. Figure 5 is a perspective view showing the second member in the first cylindrical body of the portable light fixture in Figure 4.

[0011] As shown in Figures 1 to 3, the portable light fixture 100 is constructed by housing a battery, which is the power source B, in a light fixture cylinder 1, and arranging a light source 50, a circuit board 60, etc. Here, the luminaire cylinder 1, as an example, comprises a first member 11 and a second member 12, which are combined to form a cylinder, and a first cylinder 10 having a first connecting portion 15 on one opening side of the cylinder, and a cylindrical second cylinder 20 having a first holding portion 22 that holds the first connecting portion 15 of the first cylinder 10 and housing a power supply B. Furthermore, the first member 11 has a first side wall portion 11a and a first dividing connection portion 15a, and the second member 12 has a base 13, a second side wall portion 14 and a second dividing connection portion 15b.

[0012] Furthermore, in the lamp body 1 and portable lamp 100, as an example, the first cylinder 10 has a second cylinder 20 detachably attached to one side and a third cylinder 30 detachably attached to the other side. The first cylinder 10 also has a third holding part 17 on the periphery of the base 13 that holds the cylindrical third cylinder 30. The third cylinder 30 has a cylindrical storage part 31 that houses a lens 35 inside, and a third connecting part 32 that is continuous with the storage part 31 and detachably connected to the third holding part 17. Furthermore, the second cylinder 20 will be described as having a lid part 40 detachably attached to the side opposite to the first cylinder 10. The various components of the lamp body 1 and portable lamp 100 will be described below.

[0013] As shown in Figures 3 and 4, the first cylindrical body 10 is the part that supports the circuit board 60 inside the cylinder and positions the light source 50. One end of the first cylindrical body 10 is detachably connected to the second cylindrical body 20, and the other end is detachably connected to the third cylindrical body 30. The first cylindrical body 10 comprises a first member 11 and a second member 12. When the first member 11 and the second member 12 are combined, the outer shape becomes cylindrical, and the circuit board 60 is supported inside the cylinder. The second member 12 has a base 13 on which the light source 50 is placed, so as to close one of the cylindrical openings of the first cylindrical body 10, and protrudes in the direction of the other cylindrical opening. One of the first electrodes 18a of the power supply electrode 18, which contacts the battery, which is the power supply B, is positioned on the protruding portion.

[0014] Furthermore, a cylindrical first connecting portion 15 is positioned on the outside of the first electrode 18a in the first cylindrical body 10. In addition, the first cylindrical body 10 supports the circuit board 60 so as to house it inside the cylindrical part. The first connecting portion 15 is mounted inside the first retaining portion 22, the second divided connecting portion 15b has a part of the threaded portion that engages with the threaded structure of the first retaining portion 22, and the first divided connecting portion 15a has a contact surface 15a1 that abuts against the top of the threaded structure of the first retaining portion 22. The first cylindrical body 10 can be made of metal or alloy metal such as Al, Cu, or SUS (stainless steel), or it can be made of a resin with self-extinguishing and impact-resistant properties such as PC (polycarbonate).

[0015] The first member 11 is a component that, together with the second member 12, constitutes the first cylindrical body 10. The first member 11 has a first side wall portion 11a that becomes part of the cylindrical side wall and covers a part of the periphery of the circuit board 60 housed inside the cylindrical body, and a first divided connection portion 15a that is continuous with the first side wall portion 11a and becomes part of the first connection portion 15.

[0016] The first side wall portion 11a is an arcuate surface, and its upper end abuts against the lower end side of the base 13 of the second member 12, and both side ends thereof abut against the second side wall portion 14 of the second member 12. Here, the arcuate surface means a surface having an arcuate cross section. The first side wall portion 11a is formed to be a semi-arcuate surface. As an example, the first side wall portion 11a is adjacent to the annular outer peripheral surface 14a on the lower end side of the base 13. In addition, there may be a case where the third cylindrical body 30 side is described as being upward and the second cylindrical body 20 side is described as being downward. The first split connection portion 15a is a part that is a part of the first connection portion 15 of the first cylindrical body 10. The first split connection portion 15a is arranged continuously from the first side wall portion 11a via a step so as to have a semi-arcuate shape with a diameter smaller than that of the semi-arc of the first side wall portion 11a.

[0017] The first split connection portion 15a has a contact surface 15a1 which is its arcuate surface and the back surface of the contact surface 15a1 being smooth curved surfaces. And the arcuate contact surface 15a1 of the first split connection portion 15a is arranged at a position having the same height as the valley portion of the thread formed in the second split connection portion 15b of the second member 12. Therefore, when the first split connection portion 15a and the second split connection portion 15b are screwed into the screw portion of the first holding portion 22 as the first connection portion 15, they slide in a state of contacting the top of the thread of the first holding portion 22. The first holding portion 22 can be detachably held by screwing the first connection portion 15 from the outside as will be described later. Therefore, the contact surface 15a1 of the first split connection portion 15a is at a position where it abuts against the inner peripheral end surface which is the top of the thread in the screw structure of the first holding portion 22. In addition, the first split connection portion 15a is provided with an engagement hole 15a2 into which an engagement pin 15b2 arranged to protrude from the plate thickness portion which is the side end surface of the second split connection portion 15b engages with the plate thickness portion which is the side end surface of the contact surface 15a1. The engagement hole 15a2 is formed in a shape corresponding to the shape of the engagement pin 15b2, and here, as an example, it is formed as a round hole in a plan view.

[0018] The second member 12 is a member that constitutes the first cylindrical body 10 together with the first member 11. The second member 12 is disposed adjacent to the first side wall portion 11a so as to close the other cylindrical opening, and has a base 13 for mounting the light source 50. The second member 12 is adjacent to the side end of the first side wall portion 11a and is continuously formed as a cylindrical side wall from the base 13, and has a second side wall portion 14 that covers a part of the periphery of the circuit board 60. The second member 12 is continuously formed with a second divided connection portion 15b that is a part of the first connection portion 15.

[0019] The base 13 is disposed so as to mount the light source 50 and close the one cylindrical opening of the first cylindrical body 10. The base 13 includes a third holding portion 17 for holding the cylindrical third cylindrical body 30 at its periphery. The base 13 has a flat mounting surface 13a for mounting the light source 50. The mounting surface 13a is, for example, circular in plan view. The mounting surface 13a mounts the light source 50 by attaching the mounting substrate 51 of the light emitting device 52 with screws or the like. A through hole penetrating the base 13 in the plate thickness direction is formed in the mounting surface 13a so that electrical wiring can be connected to the light source 50.

[0020] As shown in FIGS. 2 and 3, the light source 50 includes, for example, a mounting substrate 51 and a light emitting device 52 disposed on the mounting substrate 51. The light source 50 preferably uses an LED or an LD (laser diode) as the light emitting device 52. In particular, by using an LD, the light irradiated through the lens 35 can reach farther than when using an LED. The irradiation light from the light source 50 can reach a distance of, for example, 1 km or more by being output through the lens 35.

[0021] Furthermore, the base 13 is provided with a third retaining portion 17 at a position lower than the mounting surface 13a. The third retaining portion 17, for example, has a screw structure and has a portion on its outer circumference with threads formed over a predetermined width at a position lower than the mounting surface 13a. The third retaining portion 17 is screwed into the screw structure portion of the third connecting portion 32 of the third cylindrical body 30 from the outside. Therefore, the first cylindrical body 10 and the third cylindrical body 30 can be detachably attached and removed by the third retaining portion 17 and the third connecting portion 32. Here, the third barrel 30, which is connected to the first barrel 10, is designed to house a lens 35 inside, as will be described later.

[0022] As shown in Figure 4, the second side wall portion 14 is continuous with the base 13 and, together with the first side wall portion 11a, constitutes the outer wall 10A of the first cylindrical body 10. The second side wall portion 14 has an annular outer surface 14a of a predetermined width and an arc-shaped outer surface 14b that is continuous with the annular outer surface 14a. Furthermore, as shown in Figure 5, the arc-shaped outer surface 14b has a substrate support portion 16 that supports the circuit board 60, and the substrate support portion 16 has a first support portion 16a arranged along the circumferential direction of the inner surface of the second side wall portion 14 and a second support portion 16b that is spaced apart from the first support portion 16a in the cylindrical axial direction so as to be able to support the circuit board 60.

[0023] The annular outer surface 14a is adjacent to the upper end of the first side wall portion 11a of the first member 11, and the arc-shaped outer surface 14b is positioned adjacent to the side end of the first side wall portion 11a of the first member. The arc-shaped outer surface 14b is positioned such that the arc length is a semicircular arc. When this arc-shaped outer surface 14b and the first side wall portion 11a of the first member are combined, a cylindrical shape is formed, and a substrate support portion 16 is provided on the inner circumferential surface side of the arc-shaped outer surface 14b, thereby housing and supporting the circuit board 60 inside the cylindrical structure. As an example, the substrate support portion 16 detachably supports the circuit board 60 by detachably fitting the circuit board 60 into the inner circumferential surface of the second side wall portion 14. In this case, the substrate support portion 16 has a first support portion 16a and a second support portion 16b that support a part of the peripheral edge of the circuit board 60 by fitting it into a groove. The circuit board 60 has a first substrate 61 supported by the first support portion 16a and a second substrate 62 supported by the second support portion 16b. Note that if the substrate support portion 16 is provided on the second side wall portion 14, it is not necessary to provide it on the first side wall portion 11a. This simplifies the structure of the first side wall portion 11a.

[0024] The first support portion 16a has a groove on the inner circumferential surface of the second side wall portion 14 that fits and supports the peripheral edge portion of the first substrate 61 in a predetermined range in the circumferential direction. The second support portion 16b has a groove on the inner circumferential surface of the second side wall portion 14 such that the second substrate 62 is supported at a position separated by space from the first substrate 61 supported by the first support portion 16a. The first support portion 16a and the second support portion 16b have grooves formed in a concave shape in the thickness direction along the arc-shaped second side wall portion 14. A convex portion may be provided in the groove of the second side wall portion 14 so as to interlock with concave portions 61a and 62a provided in the first substrate 61 and the second substrate 62, respectively.

[0025] The first substrate 61 supported by the first support portion 16a is, for example, a substrate equipped with a boost circuit. The second substrate 62 supported by the second support portion 16b is, for example, a substrate equipped with a driver circuit for the light-emitting device 52. The second substrate 62 is formed so that a portion of its disc shape is cut out in a fan shape, and an opening portion 62b is pre-formed on the substrate. The opening portion of the second substrate can be used to improve the airflow inside the cylinder and for arranging wiring, etc. Furthermore, the first support portion 16a and the second support portion 16b can also be made to contact the electrodes of the circuit board 60 inside the groove so that electrical contact from the power supply B can be made. The second dividing connection portion 15b, together with the first dividing connection portion 15a of the first member 11, constitutes the first connection portion 15. The second dividing connection portion 15b is arranged continuously from the second side wall portion 14 via a step, such that it has a semicircular shape with a smaller diameter than the semicircular arc of the second side wall portion 14.

[0026] The second split connection part 15b has a threaded portion 15b1 on its arc-shaped part. Therefore, when the second split connection part 15b, together with the first split connection part 15a, is screwed into the threaded portion of the first retaining part 22 as the first connection part 15, it is screwed into the threaded portion of the first retaining part 22. As will be described later, the first retaining part 22 is designed to hold the first connection part 15 detachably by screwing it in from the outside. Therefore, the threaded portion 15b1 of the second split connection part 15b engages with the threaded portion of the first retaining part 22. Furthermore, the second split connection portion 15b is provided with an engagement pin 15b2 positioned to protrude from the plate thickness portion, which forms the side end face of the threaded portion 15b1, in order to fit into the engagement hole 15a2 located on the side end face of the first split connection portion 15a. The engagement pin 15b2 is formed in a shape corresponding to the shape of the engagement hole 15a2, and in this example, it is formed in a cylindrical shape. Alternatively, the engaging pin 15b2 may be provided as a separate component from the second split connecting portion 15b, and the second split connecting portion 15b may have an engaging hole in the plate thickness portion that forms the side end face of the threaded portion 15b1, into which the engaging pin 15b2 engages.

[0027] Furthermore, in the second member 12, a first electrode 18a is positioned to contact one electrode of the battery, which is the power source B, in a direction that closes the cylindrical opening inside the second divided connection portion 15b, thereby becoming one of the power supply electrodes 18. The first electrode 18a is arranged in a plate shape within the cylinder, substantially parallel to the first substrate 61, with a gap between it and the first substrate 61 supported by the first support portion 16a. The first electrode 18a is formed in a semicircular or arc shape and is arranged to have a metal electrode portion at the center of the cylinder. As an example, the first electrode 18a is arranged to be detachably fitted into a groove provided on the inner circumferential surface of the second member 12. The first electrode 18a has a circular metal piece positioned at a predetermined location on the insulating resin substrate, which contacts the electrode of the power supply B.

[0028] As shown in Figures 2 and 3, the second cylindrical body 20 is provided with a first holding portion 22 on one opening side of the cylindrical body 21 for holding the first cylindrical body 10, and a second holding portion 23 on the other opening side of the cylindrical body 21 for holding the lid portion 40, and a battery as a power source B is housed inside the cylindrical body 21. The second cylinder 20 is formed in a cylindrical shape, for example, and together with the first cylinder 10, it forms the part that the user grips the portable light fixture 100. The second cylindrical body 20 can be formed from, for example, metals such as Al, Cu, or alloys, or metals such as SUS. Furthermore, the first connecting portion 15 of the first cylindrical body 10 has a smaller diameter than the cylindrical portion (outer wall 10A) of the first cylindrical body 10, and the first holding portion 22 of the second cylindrical body 20 is located outside the first connecting portion 15, and the cylindrical portion (outer wall 20A) of the second cylindrical body 20 has approximately the same diameter as the cylindrical portion (outer wall 10A) of the first cylindrical body 10.

[0029] The first retaining portion 22 detachably holds the first connecting portion 15 of the first cylindrical body 10, and for example, it is equipped with a screw structure. The diameter of the first retaining portion 22 is formed to be larger than the diameter of the first connecting portion 15, and it holds the first connecting portion 15 so that it fits inside the cylinder. The first retaining portion 22 is screwed into the first connecting portion 15 by the screw structure of the second divided connecting portion 15b of the first connecting portion 15, and the first connecting portion 15 is held in place by the contact surface 15a1 of the first divided connecting portion 15a of the first connecting portion 15 contacting the top of the screw threads of the first retaining portion 22.

[0030] The second retaining part 23 detachably holds the second connecting part 41 of the lid part 40. The second retaining part 23 has a screw structure that can accommodate the screw structure of the second connecting part 41, for example. The second retaining part 23 holds the second connecting part 41 so that it fits inside the cylinder. The second retaining part 23 detachably holds the second connecting part 41 by being screwed into the second connecting part 41 by its screw structure.

[0031] The third cylinder 30 is positioned connected to the first cylinder 10. The third cylinder 30 houses a lens 35 inside and is positioned to send light from the light source 50 to a distant location. Furthermore, the outer wall 30A of the third cylindrical body 30 is positioned to be substantially flush with the outer wall 10A of the first cylindrical body 10 and the outer wall 20A of the second cylindrical body 20. The storage section 31, for example, has a space for housing the lens 35 inside a cylindrical body. The storage section 31 has irregularities on the inner surface of the cylinder to match the shape of the lens 35 so that the lens 35 does not move when it is stored inside, and a fixing groove 33 is provided on the inner surface of the cylinder to fix the periphery of the front surface of the lens 35. This storage section 31 is configured to dissipate heat from the light source 50. For example, to improve heat dissipation, an annular member 36 is placed inside the storage section 31. The annular member 36 has increased thickness on the side closest to the light source 50 to increase the surface area and improve heat dissipation.

[0032] As an example, the lens 35 is a collimating lens that makes the light from the light source 50 into parallel light. The lens 35 has a flat irradiating surface 35a at one end that emits light, and an inclined surface 35b at the other end opposite the irradiating surface 35a, with the diameter decreasing towards the other end, and a recess 35c at the other end. The recess 35c is positioned opposite the light-emitting device 52 so that light from the light-emitting device 52 of the light source 50 is incident on it. The lens 35 is positioned so that the irradiating surface 35a that emits light is directly exposed to the outside, but a light-transmitting protective cover may be placed in the fixing groove 33. If a disc-shaped protective cover is used, the fixing groove 33 is placed in two locations spaced apart in the axial direction of the cylinder, with the periphery of the lens 35 fixed to one and the protective cover fixed to the other.

[0033] The lid portion 40 is detachably held by the second holding portion 23 of the second cylindrical body 20. The lid portion 40 has a second connecting portion 41 that is detachably connected to the second holding portion 23, and a second electrode 18b that contacts the other electrode of the battery, which is the power source B, and becomes the other power electrode 18. When the lid portion 40 is attached to the second cylindrical body 20, it is formed in a size and shape such that the outer wall 40A of the lid portion 40 and the outer wall 20A of the second cylindrical body 20 are in the same plane. As an example, the lid portion 40 is a member that closes the opening on the other end of the second cylindrical body 20, and is equipped with a second electrode 18b that contacts the other electrode of the power source B. The lid portion 40 includes the second connecting portion 41 and a power switch 42, and here it has a lid cylindrical body 45 having a first lid member 43 and a second lid member 44. The second connecting portion 41 is detachably held by the second holding portion 23 of the second cylindrical body 20 via a screw structure. The screw structure of the second connecting portion 41 is positioned so as to be inside the second holding portion 23. The second connecting portion 41 is located on the second lid member 44.

[0034] The first lid member 43 is a disc-shaped member with a power switch 42 positioned in the center, and has a first screw portion 43a on its peripheral edge that can be attached to and detached from the second screw portion 44a of the second lid member 44. The lid cylinder 45 is detachable by screwing the first threaded portion 43a of the first lid member 43 into the second threaded portion 44a of the second lid member 44, and is configured to facilitate the installation of the power switch 42 located inside. The power switch 42 is a typical switch that, when pressed, pushes the second electrode 18b out of contact with the power supply B to turn on the power, and when pressed again, separates the second electrode 18b from the power supply B to turn off the power.

[0035] As explained above, the luminaire cylinder 1 and the portable luminaire 100, by being equipped with each component, have the following functions and effects. The portable light fixture 100 and the light fixture cylinder 1 are designed so that the first cylinder 10 is divided into a cylindrical shape by combining the first member 11 and the second member 12, allowing for the internal construction of a circuit board 60 the size of the cylinder's diameter. Therefore, it is not necessary to enlarge one of the openings in the cylinder to house the circuit board 60, thus eliminating the need to increase the overall size of the portable light fixture 100. In other words, the portable light fixture 100 and the light fixture cylinder 1 can be made smaller overall. Furthermore, even when using multiple circuit boards, such as the first circuit board 61 and the second circuit board 62, the circuit board support portion 16 of the second member can support the first circuit board 61 and the second circuit board 62 at a certain distance apart, allowing for proper heat dissipation from the circuit boards.

[0036] Furthermore, the portable light fixture 100 can output light from the light source 50 via the lens 35 so that it can reach, for example, a distance of 1 km or more. In other words, even though the portable light fixture 100 has a small external size, by using a light-emitting device 52 such as an LD, and equipping it with a first board 61 having a boost circuit and a second board 62 having a driver circuit, the output can be increased so that the light illuminating the device can reach a long distance.

[0037] In the description of the luminaire cylinder 1 and the portable luminaire 100, the external shape is described as cylindrical, but it is not limited to a cylindrical shape; it may also be a rectangular cylinder, a regular polygonal cylinder, an elliptical cylinder, etc. In the description of the luminaire cylinder 1 and the portable luminaire 100, the first side wall portion 11a of the first member and the second side wall portion 14 of the second member are described as having a semi-circular cross-sectional shape, but one may be a less curved shape and the other a more curved shape. Furthermore, as long as the first side wall portion 11a and the second side wall portion 14 combine to form a cylinder (tubular shape), the first side wall portion 11a and the second side wall portion 14 may be symmetrical or asymmetrical.

[0038] Furthermore, although the first split connection portion 15a has a contact surface 15a1 without a screw structure in the portion that is screwed into the first retaining portion 22, it may also have a screw structure. In other words, the first connection portion 15 may have a screw structure, and the first retaining portion 22 may have a screw structure that detachably holds the first connection portion 15. If a screw structure is present, it is necessary to adjust the position of the screw structure of the screw portion 15b1 of the second split connection portion 15b and the screw structure on the first split connection portion 15a side. By making the contact surface 15a1 on the first split connection portion 15a side without a screw structure, adjustment of the position of the screw structure becomes unnecessary. Also, although the contact surface 15a1 has been described as contacting the top of the screw structure of the first retaining portion 22, contact is not essential, and a gap may be present.

[0039] Furthermore, the external dimensions of the first cylindrical body 10 and the second cylindrical body 20 may be such that, for example, the first connecting portion 15 of the first cylindrical body 10 has a smaller diameter than the cylindrical portion (outer wall 10A) of the first cylindrical body 10, and the first holding portion 22 of the second cylindrical body 20 is located outside the first connecting portion 15, so that the cylindrical portion (outer wall 20A) of the second cylindrical body 20 has a smaller diameter than the cylindrical portion (outer wall 10A) of the first cylindrical body 10. In this case, the lid portion 40 attached to the second cylindrical body 20 may also have approximately the same diameter as the cylindrical portion (outer wall 20A) of the second cylindrical body 20, or it may have the same diameter as the cylindrical portion (outer wall 10A) of the first cylindrical body 10.

[0040] In the above explanation, "approximately the same diameter, approximately the same surface, and approximately the same size" means that one part has an error of plus or minus 3% or less relative to the other. Also, if the shape is not circular, "approximately the same diameter" means that, for example, if it is a square, regular polygon, or ellipse, the external shape is the same and the size of the other part is within a range of plus or minus 3% or less relative to the other. Furthermore, the first cylindrical body 10 may have a circular or regular polygonal shape when viewed in a cross-section perpendicular to the cylindrical axis, and the second cylindrical body 20 may have a circular or regular polygonal shape when viewed in a cross-section perpendicular to the cylindrical axis, and may be sized to house a battery inside the cylindrical body. In addition, the first cylindrical body 10, the second cylindrical body 20, the third cylindrical body 30, and the lid 40 may have different external shapes.

[0041] Furthermore, although the explanation described the second member 12 as being equipped with a circuit board support portion 16 for the circuit board 60, the circuit board support portion 16 may also be provided on the first member 11. Furthermore, the battery used as power source B can be any battery that is small enough to be carried, such as a dry cell battery, rechargeable battery, or button cell battery. When using a button cell battery, the length of the cylindrical body 21 of the second cylindrical body 20 can be made the same as or shorter than when using a dry cell battery. When using a button cell battery, it is preferable to use multiple button cell batteries connected in series rather than using a single button cell battery. Furthermore, the components that are detachable by a screw structure may be fixed in place so that they cannot be detached once the portable light fixture 100 is completed. Furthermore, the following dependent relationship may exist in the claims of the present invention. [Section 1] A first cylindrical body comprising a first member and a second member, the first member and the second member being combined to form a cylindrical shape, and having a first connecting portion on one opening side of the cylindrical body, The device comprises a cylindrical second cylinder having a first holding portion that holds the first connecting portion of the first cylinder and housing a power supply, The first member has a first side wall portion that becomes part of the cylindrical side wall and covers a part of the periphery of the circuit board housed inside the cylinder, and a first divided connection portion that is continuous with the first side wall portion and becomes part of the first connection portion. The second member is a cylindrical body for a light fixture having a base for which a light source is placed and which is arranged to close the other cylindrical opening, a second side wall portion which is adjacent to the side end of the first side wall portion and is part of the cylindrical side wall which is continuous from the base and covers a part of the periphery of the circuit board, and a second divided connecting portion which is continuous with the second side wall portion and is part of the first connecting portion. [Section 2] The first cylindrical body is provided with a third retaining portion that holds a cylindrical third cylindrical body at the periphery of the base, The luminaire cylinder according to claim 1, wherein the third cylinder comprises a cylindrical storage portion for housing a lens inside, and a third connecting portion that is continuous with the storage portion and detachably connected to the third holding portion. [Section 3] The luminaire cylinder according to claim 1 or 2, wherein the first connecting portion is mounted inside the first retaining portion, the second split connecting portion has a portion of the threads that engage with the thread structure of the first retaining portion, and the first split connecting portion has a contact surface that abuts against the inner circumferential end surface of the thread structure of the first retaining portion. [Section 4] The luminaire cylinder according to any one of claims 1 to 3, wherein the first connecting portion has a screw structure, and the first retaining portion has a screw structure for detachably holding the first connecting portion. [Section 5] The luminaire cylinder according to any one of claims 1 to 4, wherein the first connecting portion of the first cylinder has a smaller diameter than the cylindrical portion of the first cylinder, and the first holding portion of the second cylinder is located outside the first connecting portion and the cylindrical portion of the second cylinder has substantially the same diameter as the cylindrical portion of the first cylinder. [Section 6] A luminaire cylinder according to any one of claims 1 to 5, wherein the first connecting portion of the first cylinder has a smaller diameter than the cylindrical portion of the first cylinder, and the first holding portion of the second cylinder is located outside the first connecting portion and the cylindrical portion of the second cylinder has a smaller diameter than the cylindrical portion of the first cylinder. [Section 7] The luminaire cylinder according to any one of claims 1 to 6, wherein the second side wall portion includes a substrate support portion for supporting the circuit board, and the substrate support portion comprises a first support portion arranged along the inner circumferential surface of the second side wall portion and a second support portion arranged to support the circuit board at a distance from the first support portion in the cylindrical axial direction. [Section 8] The second member is provided with a first electrode that contacts one of the electrodes of a battery, which is a power source, in a direction that closes the cylindrical opening inside the first connection portion, and becomes one of the power supply electrodes. The luminaire cylinder according to any one of claims 1 to 7, wherein the second cylinder comprises a lid portion that is detachably attached to a cylindrical opening opposite to the first retaining portion via the second retaining portion, the lid portion has a second connecting portion that is detachably connected to the second retaining portion, and a second electrode that contacts the other electrode of the battery and becomes the other power supply electrode. [Section 9] The first cylindrical body has a circular or regular polygonal shape when viewed in a cross-section perpendicular to the cylindrical axis. The second cylindrical body is a luminaire cylinder according to any one of claims 1 to 8, wherein the shape of the second cylindrical body in a cross-sectional view in a direction perpendicular to the cylindrical axis is circular or a regular polygon, and the cylindrical body is large enough to house a battery inside. [Section 10] A first cylindrical body comprising a first member and a second member, wherein the first member and the second member are combined to form a cylindrical shape, and the first cylindrical body has a first connecting portion on one opening side of the cylindrical body and a circuit board inside the cylindrical body, The device comprises a cylindrical second cylindrical body having a first holding portion that holds the first connecting portion of the first cylindrical body, and a power supply being housed within it, The first member has a first side wall portion that becomes part of the cylindrical side wall and covers a part of the periphery of the circuit board housed inside the cylinder, and a first divided connection portion that is continuous with the first side wall portion and becomes part of the first connection portion. The second member is a portable light fixture having a base on which a light source is placed and positioned to close the other cylindrical opening, a second side wall portion adjacent to the side end of the first side wall portion and continuous with the base to form part of the cylindrical side wall, and covering a part of the periphery of a circuit board housed inside the cylindrical part, and a second split connection portion continuous with the second side wall portion and forming part of the first connection portion. [Section 11] The portable light fixture according to claim 10, wherein the first connecting portion is mounted inside the first retaining portion, the second split connecting portion has a portion of the threads that engage with the thread structure of the first retaining portion, and the first split connecting portion has a contact surface that abuts against the inner circumferential end surface of the thread structure of the first retaining portion. [Section 12] The first cylindrical body is provided with a third retaining portion that holds a cylindrical third cylindrical body at the periphery of the base, The portable light fixture according to claim 10 or 11, wherein the third cylindrical body comprises a cylindrical storage section and a third connecting section that is continuous with the storage section and connected to the third holding section, and the storage section houses a collimating lens that makes the light from the light source into parallel light. [Section 13] The second member is provided with a first electrode that contacts one of the electrodes of the battery, which is the power source, in a direction that closes the cylindrical opening inside the first connection portion, and becomes one of the power supply electrodes. The portable light fixture according to any one of claims 10 to 12, wherein the second cylindrical body comprises a lid portion that is detachably attached to a cylindrical opening opposite to the first holding portion via the second holding portion, the lid portion has a second connecting portion that is detachably connected to the second holding portion, and a second electrode that contacts the other electrode of the battery and becomes the other power supply electrode. [Section 14] The second side wall portion includes a substrate support portion for supporting the circuit board, and the substrate support portion comprises a first support portion arranged along the inner circumferential surface of the second side wall portion and a second support portion arranged to support the circuit board at a distance from the first support portion in the cylindrical axial direction. The portable light fixture according to any one of claims 10 to 13, wherein the circuit board comprises a first board supported by the first support and a second board supported by the second support at a position spaced apart from the first board. [Section 15] The light source is a portable light fixture according to any one of claims 10 to 14, having a laser diode. [Explanation of Symbols]

[0042] 1 Tube for lamp 10 First cylinder 10A Outer wall of the first cylinder 11. First Member 11a First side wall part 15a First split connection section 12 Second Member 13 Bass 13a Mounting surface 14. Second side wall section 14a Annular outer surface 14b Arcuate outer circumferential surface 15. First connection section 15a First split connection section 15a1 Contact surface 15a2 Engagement hole 15b Second split connection section 16. Substrate support section 16a 1st support part 16b Second support part 17 Third holding part 18 Power electrode 18a 1st electrode 18b 2nd electrode 20 Second cylinder 20A Outer wall of the second cylinder 21. Main body of cylinder 22 1st holding part 23 Second holding part 30 Third cylinder 30A Outer wall of the third cylinder 31 Storage compartment 32 Third connection section 33 Fixed groove 35 Lens (Collimating Lens) 40 Lid 40A Outer wall of the lid 41 Second connection section 42 Power switch 43. First lid member 44 Second lid member 45 Lid cylinder body 50 light source 51 Mounting board 52 Light-emitting devices (LDs) 60 Circuit boards 100 Portable Lighting Devices B Power supply (battery)

Claims

1. A first cylindrical body comprising a first member and a second member, the first member and the second member being combined to form a cylindrical shape, and having a first connecting portion on one opening side of the cylindrical body, The device comprises a first holding portion that holds the first connecting portion of the first cylindrical body, and a cylindrical second cylindrical body that houses a power supply, The first member has a first side wall portion that becomes part of the cylindrical side wall and covers a part of the periphery of the circuit board housed inside the cylinder, and a first divided connection portion that is continuous with the first side wall portion and becomes part of the first connection portion. The second member is a cylindrical body for a light fixture having a base for which a light source is placed and which is arranged to close the other cylindrical opening, a second side wall portion which is adjacent to the side end of the first side wall portion and is part of the cylindrical side wall which is continuous from the base and covers a part of the periphery of the circuit board, and a second divided connecting portion which is continuous with the second side wall portion and is part of the first connecting portion.

2. The first cylindrical body is provided with a third retaining portion that holds a cylindrical third cylindrical body at the periphery of the base, The luminaire cylinder according to claim 1, further comprising a cylindrical storage section for housing a lens inside, and a third connecting section that is continuous with the storage section and detachably connected to the third holding section.

3. The luminaire cylinder according to claim 1, wherein the first connecting portion is mounted inside the first retaining portion, the second split connecting portion has a part of a threaded portion that engages with the threaded structure of the first retaining portion, and the first split connecting portion has a contact surface that abuts against the inner circumferential end surface of the threaded structure of the first retaining portion.

4. The luminaire cylinder according to claim 1, wherein the first connecting portion has a screw structure, and the first retaining portion has a screw structure for detachably holding the first connecting portion.

5. The luminaire cylinder according to claim 1, wherein the first connecting portion of the first cylinder has a smaller diameter than the cylindrical portion of the first cylinder, and the first holding portion of the second cylinder is located outside the first connecting portion, and the cylindrical portion of the second cylinder has approximately the same diameter as the cylindrical portion of the first cylinder.

6. The luminaire cylinder according to claim 1, wherein the first connecting portion of the first cylinder has a smaller diameter than the cylindrical portion of the first cylinder, and the first holding portion of the second cylinder is located outside the first connecting portion and the cylindrical portion of the second cylinder has a smaller diameter than the cylindrical portion of the first cylinder.

7. The cylindrical body for a luminaire according to claim 1, wherein the second side wall portion includes a substrate support portion for supporting the circuit board, and the substrate support portion comprises a first support portion arranged along the inner circumferential surface of the second side wall portion and a second support portion arranged to support the circuit board at a distance from the first support portion in the cylindrical axial direction.

8. The second member is provided with a first electrode that contacts one of the electrodes of a battery, which is a power source, in a direction that closes the cylindrical opening inside the first connection portion, and becomes one of the power supply electrodes. The luminaire cylinder according to claim 1, wherein the second cylinder comprises a lid portion that is detachably attached to a cylindrical opening opposite to the first holding portion via the second holding portion, the lid portion has a second connecting portion that is detachably connected to the second holding portion, and the lid portion has a second electrode that contacts the other electrode of the battery and becomes the other power electrode.

9. The first cylindrical body has a circular or regular polygonal shape when viewed in a cross-section perpendicular to the cylindrical axis. The second cylindrical body is a cylindrical body for a light fixture according to claim 1, wherein the shape of the second cylindrical body in a cross-sectional view in a direction perpendicular to the axis of the cylindrical body is circular or a regular polygon, and the cylindrical body is large enough to house a battery inside.

10. A first cylindrical body comprising a first member and a second member, wherein the first member and the second member are combined to form a cylindrical shape, and the first cylindrical body has a first connecting portion on one opening side of the cylindrical body and a circuit board inside the cylindrical body, The device comprises a cylindrical second cylindrical body having a first holding portion that holds the first connecting portion of the first cylindrical body, and a power supply being housed within it, The first member has a first side wall portion that becomes part of the cylindrical side wall and covers a part of the periphery of the circuit board housed inside the cylindrical part, and a first divided connection portion that is continuous with the first side wall portion and becomes part of the first connection portion. The second member is a portable light fixture having a base on which a light source is placed and positioned to close the other cylindrical opening, a second side wall portion adjacent to the side end of the first side wall portion and continuous with the base to form part of the cylindrical side wall, and covering a part of the periphery of a circuit board housed inside the cylindrical part, and a second divided connection portion continuous with the second side wall portion and forming part of the first connection portion.

11. The portable light fixture according to claim 10, wherein the first connecting portion is mounted inside the first retaining portion, the second split connecting portion has a part of a threaded portion that engages with the threaded structure of the first retaining portion, and the first split connecting portion has a contact surface that abuts against the inner circumferential end surface of the threaded structure of the first retaining portion.

12. The first cylindrical body is provided with a third retaining portion that holds a cylindrical third cylindrical body at the periphery of the base, The portable light fixture according to claim 10, wherein the third cylindrical body comprises a cylindrical storage section and a third connecting section that is continuous with the storage section and connected to the third holding section, and the storage section houses a collimating lens that makes the light from the light source into parallel light.

13. The second member is provided with a first electrode that contacts one of the electrodes of the battery, which is the power source, in a direction that closes the cylindrical opening inside the first connection portion, and becomes one of the power supply electrodes. The portable light device according to claim 10, wherein the second cylindrical body comprises a lid portion that is detachably attached to a cylindrical opening opposite to the first holding portion via the second holding portion, the lid portion has a second connecting portion that is detachably connected to the second holding portion, and the lid portion has a second electrode that contacts the other electrode of the battery and becomes the other power electrode.

14. The second side wall portion includes a substrate support portion for supporting the circuit board, and the substrate support portion includes a first support portion arranged along the inner circumferential surface of the second side wall portion, and a second support portion arranged to support the circuit board at a distance from the first support portion in the cylindrical axial direction. The portable light device according to claim 10, wherein the circuit board comprises a first board supported by the first support portion and a second board supported by the second support portion at a position spaced apart from the first board.

15. The portable light device according to any one of claims 10 to 14, wherein the light source is a laser diode.

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