JP2020009713A - Lighting appliance, telescopic structure of lighting appliance and illumination device - Google Patents

Abstract

To provide a lighting appliance which is telescopic while maintaining cutoff performance, a telescopic structure of the telescopic lighting appliance while maintaining cutoff performance, and an illumination device using the lighting appliance having the telescopic structure.SOLUTION: A lighting appliance constituting an illumination device by being attached to the illumination device comprises: an outer shell which covers a light emitting face of a light emitting element arranged in an attachment member, and in which an opening is formed at an end part of the attachment member in a first direction along a longitudinal direction; an end part lid attached to the outer shell in a state of covering the end part at which the opening is formed; and a connecting member arranged outside the end part lid in the first direction, fixed to the attachment member penetrating the end part lid at one part, and fixed to the illumination device at the other part. The end part is movable along the first direction.SELECTED DRAWING: Figure 15

Description

  The present invention relates to a lamp that expands and contracts while maintaining water-stopping, an extendable structure of a lamp that can expand and contract while maintaining water-stopping, and a lighting device using a lamp having such an expansion-and-contraction structure.

  A lamp and an illuminating device that can absorb a difference in the amount of expansion and contraction between the mounting member and the outer shell due to a temperature change by moving the connecting member with respect to the mounting member are disclosed (for example, see Patent Document 1). ).

Japanese Patent No. 6206811

  The lamp disclosed in Patent Literature 1 has the above-described configuration, so that an excessive stress is less likely to be generated in a fixing portion between the mounting member and the outer shell due to a rise in temperature, and the lamp and the lighting device are subject to temperature changes. It is described that an effect of suppressing the occurrence of the resulting trouble can be obtained. However, in the lamp disclosed in Patent Literature 1, a fixing screw (not shown) is inserted into each screw insertion hole of the first fixing portion, and these fixing screws pass through the respective insertion holes of the outer shell to each screw hole of the fixing piece. The fixing screw is inserted into the screw insertion hole of the first fixing portion via, for example, a waterproof washer. The fixture for attaching the lamp to the fixture body is attached to the outer shell by the first fixing portion being screwed to the fixing piece of the fixture via the outer shell. That is, the provision of the screw holes on the outer shell of the waterproof case may hinder the water stoppage, which is a problem for lamps that require water stoppage.

  The present invention has been made in view of the above-described problems, and is a lamp that expands and contracts while maintaining water stoppage, a telescopic structure of a lamp that can expand and contract while maintaining water stoppage, and a lamp that has such an expansion and contraction structure. An object of the present invention is to provide a lighting device using the same.

  A lamp according to the present invention is a lamp that constitutes a lighting device by being attached to a lighting fixture, and covers a light emitting surface of a light emitting element disposed on an attachment member and a first direction along a longitudinal direction of the attachment member. An outer shell having an opening at an end thereof, an end lid attached to the outer shell in a state of covering the end forming the opening, and a part disposed outside the end lid in the first direction, and Is fixed to a mounting member that penetrates the end cover, and a connecting member is fixed to another part of the lighting device. The end is movable along the first direction. It is.

  The lamp of the present invention has an end cover attached to the outer shell while covering the end forming the opening, and is disposed outside the end cover in the first direction, and a part thereof penetrates the end cover. And a connecting member that is fixed to the mounting member and the other part is fixed to the lighting fixture. The end is movable along the first direction. Therefore, it is not necessary to form a hole for fixing the lamp in the outer shell, and the end of the outer shell can be formed movably while maintaining the water stoppage of the outer shell. As a result, it is possible to provide a lamp that expands and contracts while maintaining the water stoppage, an extendable structure of the lamp that can expand and contract while maintaining the water stoppage, and a lighting device that uses the lamp provided with such an expandable and contractible structure.

FIG. 2 is a perspective view of the lighting device according to the embodiment of the present invention. It is the division | segmentation perspective view which divided | segmented the lighting fixture of the lighting device which concerns on embodiment of this invention, and a lamp. It is a sectional view of the lighting installation concerning an embodiment of the invention. It is a perspective view of the lamp concerning an embodiment of the invention. It is an exploded perspective view in one end of a lamp concerning an embodiment of the invention. It is an exploded perspective view in the other end of the lamp concerning an embodiment of the invention. FIG. 2 is a cross-sectional view along a longitudinal direction X of the lamp according to the embodiment of the present invention. It is a division perspective view explaining an end cover of a lamp concerning an embodiment of the invention. FIG. 9 is a divided perspective view illustrating an end cover of the lamp according to the embodiment of the present invention as viewed from a side opposite to FIG. 8. It is a mimetic diagram explaining a sealing structure of a lamp concerning an embodiment of the invention. It is a mimetic diagram explaining the 1st modification of the sealing structure of the lamp concerning an embodiment of the invention. It is a schematic diagram explaining the 2nd modification of the sealing structure of the lamp concerning embodiment of this invention. It is a schematic diagram explaining the 3rd modification of the sealing structure of the lamp concerning embodiment of this invention. It is a schematic diagram explaining the 4th modification of the sealing structure of the lamp concerning embodiment of this invention. It is sectional drawing which shows the reference | standard arrangement | positioning of the expansion-contraction structure which concerns on embodiment of this invention. It is sectional drawing which shows the arrangement | positioning of the extension state of the translucent cover in the expansion-contraction structure which concerns on embodiment of this invention. It is sectional drawing which shows arrangement | positioning of the contraction state of the translucent cover in the expansion-contraction structure which concerns on embodiment of this invention.

  Hereinafter, a lamp 3, an extendable structure 110 of the lamp 3, and a lighting device 1 according to an embodiment of the present invention will be described with reference to the drawings. In each drawing, the same or corresponding components are denoted by the same reference numerals, and description thereof may not be repeated.

  Here, the present invention is not limited by the embodiments described below. Further, in the following drawings, the relationship between the sizes of the components may be different from the actual one. In the description of the embodiments, directions or positions such as upper, lower, left, right, front, rear, front, and back may be indicated. These notations are provided for convenience of explanation, and do not limit the arrangement, direction, and orientation of devices, instruments, components, and the like.

Embodiment.
<Configuration of lighting device 1>
FIG. 1 is a perspective view of a lighting device 1 according to an embodiment of the present invention. FIG. 2 is a divided perspective view in which the lighting fixture 2 and the lamp 3 of the lighting device 1 according to the embodiment of the present invention are divided. FIG. 3 is a cross-sectional view of the lighting device 1 according to the embodiment of the present invention. FIG. 3 is a vertical cross section of the lighting device 1 in a plane A of FIG. A configuration of a lighting device 1 according to the embodiment will be described with reference to FIGS.

  In the following description, a direction along the longitudinal direction of the lighting device 1 is referred to as a longitudinal direction X. Further, a short direction perpendicular to the long direction X and with respect to the long direction X is referred to as a short direction Y. A direction perpendicular to both the longitudinal direction X and the transverse direction Y is defined as a vertical direction Z. In the longitudinal direction X, the direction toward the longitudinal end is defined as an end direction X1. The direction toward the side opposite to the end direction X1 and the direction toward the center in the longitudinal direction are referred to as a middle direction X2. Further, in the up-down direction Z, the direction toward the building section 9 to which the lighting device 1 is mounted (that is, the side of the mounting section such as a ceiling or a wall) is defined as upward Z1. The direction toward the irradiation space to which light is emitted from the lighting device 1 is the downward direction Z2, which is the direction opposite to the upward direction Z1. Here, the upward Z1 is a direction in which the lamp 3 is attached to the lighting fixture 2, and the downward Z2 is a direction in which the lamp 3 is removed from the lighting fixture 2.

  The lighting device 1 according to the present embodiment includes a lighting fixture 2 attached to a building section 9 such as a ceiling or a wall, and a lighting fixture 3 attached to the lighting fixture 2. Further, the lighting device 1 has a sealing structure 100 of the lamp 3 described later. In the present embodiment, a so-called trough-type lighting device 2 is shown as an example.

(Lighting equipment 2)
In the first embodiment, the fixture main body 20 configuring the lighting fixture 2 is formed by bending a metal plate. The device main body 20 has a device bottom portion 21, a device side portion 22 that is a set of two devices, and a device end portion 23 that is a set of two devices. The appliance bottom portion 21 is formed in a long and flat plate shape, and the appliance side portions 22 forming a pair are arranged at both ends of the appliance bottom portion 21 in the short direction Y. In addition, two sets of the appliance end portions 23 are arranged at both ends in the longitudinal direction X of the appliance bottom surface portion 21. A knockout 24 is formed at the tool end 23, and is removed when an electric wire (not shown) to be described later is inserted. The configuration and the like of the lighting fixture 2 will be further described.

  The mounting section 25 is a storage section that stores a part of the mounted lamp 3. The mounting part 25 is formed in a concave shape by the tool bottom part 21 of the tool body 20, a set of tool side parts 22, and a set of tool ends 23. For this reason, the mounting part 25 forms a space surrounded by the tool bottom part 21 of the tool main body 20, a set of tool side parts 22, and a set of tool ends 23. Here, a part of the lamp 3 accommodated by the mounting unit 25 is a non-irradiation unit that is not on the irradiation side. The opening end 26 located at the lower end of the instrument body 20 is an opening that is not surrounded by the instrument body 20. The opening end 26 serves as a mounting opening when the lamp 3 is attached to and detached from the mounting section 25 of the lighting fixture 2. In the open end 26 of the instrument body 20, connecting portions 27 are formed at both ends in the longitudinal direction X. The lamp 3 is attached to the connecting portion 27. In the present embodiment, the connecting portion 27 is formed integrally with the device end portion 23, and is formed by bending from the opening end portion 26 toward the middle X2 in the longitudinal direction X. The screw hole 28 formed in the connecting portion 27 is a hole to which a connecting screw 48 described later, which is attached to the lamp 3, is screwed. The lamp 3 is screwed and fixed to the lighting fixture 2 by a connection screw 48.

<Light 3>
FIG. 4 is a perspective view of the lamp 3 according to the embodiment of the present invention. The lamp 3 will be described with reference to FIGS. The lighting device 3 constitutes the lighting device 1 by being attached to the lighting device 2. The lighting fixture 3 serving as a lighting fixture and a light source unit is formed in a long shape, and is used by being attached to the lighting fixture 2. In the present embodiment, the lamp 3 is attached to the connecting portion 27 of the lighting fixture 2 at both ends in the longitudinal direction X of the lighting fixture 2 by connecting screws 48 described later. As shown in FIGS. 2 and 3, the lamp 3 of the first embodiment mainly includes a translucent cover 30, an end cover 40, a seal 43, a light emitting unit 60, and the like.

(Translucent cover 30)
The translucent cover 30 is made of a translucent material that transmits at least visible light, and has a tubular shape that accommodates and protects an attachment member 50, a light emitting unit 60, a control unit 80, and the like, which will be described later, in an internal space. It is an outer shell. The translucent cover 30 can be formed using a resin material such as glass, polycarbonate, or acrylic. In the translucent cover 30, a portion exposed to the outside from the mounting portion 25 also serves as an appearance design portion. The translucent cover 30 according to the present embodiment can be manufactured by, for example, cutting a cylindrical member into a required length according to product specifications or the like by extrusion molding.

  In the lamp 3 of the present embodiment, as shown in FIG. 3, a portion of the translucent cover 30 exposed to the outside from the mounting portion 25 covers the irradiation side of the light emitting unit 60 and the surface of the pedestal 51. Outer shell (outer wall). Here, with respect to the outer peripheral portion 37 of this portion, the direction of the normal to the outer surface portion is within the range from the direction along the optical axis L of the light emitting element 61 to the direction perpendicular to the optical axis L. For example, when the lighting device 3 is mounted on the lighting device 2 so that light is emitted downward from the lighting device 1, a portion exposed to the outside from the mounting portion 25 of the translucent cover 30 includes: The outer surface faces downward, obliquely downward, or laterally (outward in the horizontal direction). That is, the portion of the light-transmitting cover 30 that is exposed to the outside from the mounting portion 25 does not have its outer surface facing upward or obliquely upward. A part of the translucent cover 30 that is housed in the mounting part 25 and is not exposed to the outside is an outer shell that covers a back surface of the mounting part 52 of the mounting part 52 of the pedestal 51 on which the control part 80 is arranged. (Outer wall). The surface of the portion of the translucent cover 30 that is accommodated in the mounting portion 25 and is not exposed to the outside faces the instrument bottom portion 21 of the instrument body 20 and the set of instrument side portions 22. Here, the translucent cover 30 may have a light diffusion property, a wavelength discriminating property, and the like according to the specification of the product. In addition, portions of the light-transmitting cover 30 that are not exposed to the outside may be formed using a material having reflectivity, light-shielding properties, and the like.

  As shown in FIGS. 1 to 4, the cylindrical translucent cover 30 of the present embodiment covers a device housed therein, and a set of parallel portions 31 depending on the position of the device housed therein. , A first connection part 32 and a second connection part 33. The light-transmitting cover 30 is provided with two ribs 34. In the translucent cover 30, the set of parallel portions 31 forms a surface in which the set of surfaces are parallel to each other at the same distance. In the translucent cover 30, the outer surface portion serving as the outer surface portion and the inner surface portion serving as the inner surface portion of the pair of parallel portions 31 are both planar shapes. The pair of outer surfaces and the pair of inner surfaces are planes along the optical axis L of the light emitting element 61 housed in the translucent cover 30 and serve as outer surfaces of the outer shell (outer wall). . In the present embodiment, this plane is along the vertical direction Z in a state where the lamp 3 is mounted on the lighting fixture 2. Furthermore, this plane is also a plane along which the set of outer surfaces and the set of inner surfaces are opposed to the fixture side 22 while the lamp 3 is mounted on the lighting fixture 2. This plane also becomes a plane along the direction in which the lamp 3 is attached to or removed from the lighting fixture 2. For this reason, the parallel part 31 of the translucent cover 30 is not located outside the instrument side part 22 in the lateral direction Y, but is located inside the instrument side part 22. The part of the parallel part 31 that is exposed when the lamp 3 is mounted on the lighting fixture 2 is an irradiation part on the side of the lamp 3.

  The first connection portion 32 is a portion connecting end portions on the irradiation side of the set of parallel portions 31, intersects with the optical axis L of the light emitting element 61, and serves as a main irradiation portion of the lamp 3. The first connection part 32 irradiates the light from the light emitting element 61 downward. The outer surface portion and the inner surface portion of the first connection portion 32 are configured by one or more surfaces. As shown in FIG. 3, in the present embodiment, a case will be described in which the outer surface portion and the inner surface portion of the first connection portion 32 in the translucent cover 30 are configured by one curved surface. Here, when the outer surface portion and the inner surface portion of the first connection portion 32 are configured by a plurality of surfaces, a plurality of curved surfaces having a plurality of different curvatures, a plurality of planes having a plurality of different angles, and these curved surfaces and the plane Can be combined. The second connection portion 33 is a portion that connects the ends on the fixture side of the set of parallel portions 31 and is a portion that is housed in the attachment portion 25 when the lamp 3 is attached to the lighting fixture 2. is there. In the present embodiment, a case will be described in which the outer surface portion and the inner surface portion of the second connection portion 33 in the translucent cover 30 are formed by one curved surface. Here, when the outer surface portion and the inner surface portion of the second connection portion 33 are configured by a plurality of surfaces, a plurality of curved surfaces having a plurality of different curvatures, a plurality of planes having a plurality of different angles, and these curved surfaces and the planes Can be combined.

  The rib 34 is provided so as to protrude in the normal direction of the outer surface of the translucent cover 30. In the present embodiment, the rib 34 is provided so as to project outward in each parallel portion 31. Each rib 34 is formed integrally with the parallel part 31. Each rib 34 extends in the longitudinal direction X of the translucent cover 30. The rib 34 is formed at a position where the rib 3 faces the vicinity of the opening end 26 in the fixture side portion 22 when the lamp 3 is mounted on the lighting fixture 2.

  FIG. 5 is an exploded perspective view of one end 3A of the lamp 3 according to the embodiment of the present invention. FIG. 6 is an exploded perspective view of the other end 3B of the lamp 3 according to the embodiment of the present invention. FIG. 7 is a cross-sectional view along the longitudinal direction X of the lamp 3 according to the embodiment of the present invention. The translucent cover 30 covers the light emitting surface of the light emitting element 61 disposed on the mounting member 50, and has an opening formed at an end portion 36 in a first direction which is a longitudinal direction X along the longitudinal direction of the mounting member 50. ing. In other words, the translucent cover 30 is an elongated hollow body having at least one end 36 opened, and is an outer shell for housing the substrate 62 on which the light emitting element 61 is mounted. The cover ends 35 are both ends of the translucent cover 30 in the longitudinal direction X of the translucent cover 30. An end 36 is provided at the cover end 35 of the translucent cover 30. The end 36 is a portion of the cover end 35 where the end cover 40 is fitted, and is a portion covered by the end cover 40 which is an end cover. The end 36 is a free end that is movable along the first direction, which is the longitudinal direction X, together with the end cover 40 as the translucent cover 30 expands and contracts. Strictly, the end portion 36 and the end cover 40 of the translucent cover 30 expand and contract in directions other than the “longitudinal direction X”. However, in the lighting device 3 according to the embodiment, the translucent The cover 30 has a structure (configuration) that allows expansion and contraction in the “longitudinal direction X”. The light-transmitting cover 30 has no rib 34 formed on the outer surface of the end 36 so that the light-transmitting cover 30 can be fitted with the end cover 40. As described above, when the translucent cover 30 is manufactured by cutting the cylindrical member extruded by extrusion molding, the portion corresponding to the end 36 of the rib 34 extending in the longitudinal direction X Deleted. As shown in FIGS. 3 and 5, the outer peripheral portion 37 of the translucent cover 30 has an outer surface of an outer shell portion (outer wall portion) that becomes a set of the parallel portion 31, the first connection portion 32, and the second connection portion 33. Side. Further, the inner peripheral portion 38 is on the inner surface side of an outer shell portion (outer wall portion) that becomes a set of the parallel portion 31, the first connecting portion 32, and the second connecting portion 33.

(Overview of the end cover 40)
The end cover 40 is an end cover, and is attached to both ends of the translucent cover 30 in the longitudinal direction X. The end cover 40 is attached to the translucent cover 30 so as to cover at least a part of the opening formed in the end 36 and the end 36. In other words, the end cover 40 is attached to the translucent cover 30 so as to cover the end 36 forming the opening. The end cover 40 is attached to the translucent cover 30 so that the sealing member 43 as an elastic member is pressed against the end 36. The end cover 40 serving as an end cover is attached to the end 36 in a state in which the end cover 40 is in close contact with the sealing member 43 which is an elastic member disposed between the end 36 and the seal 36. The end cover 40 is fitted (fitted) to the end 36 of the translucent cover 30 with the sealing member 43 interposed therebetween, thereby making the translucent cover 30 a sealed structure. Here, the mounting member 50 and the translucent cover 30 that are attached to the end cover 40 are particularly affected by the use environment temperature of the lighting device 1 and the temperature change between when the lamp 3 is turned on and when the lamp 3 is turned off, especially in the longitudinal direction X. The amount of expansion and contraction is different. The end cover 40 has a structure in which the ends of the translucent cover 30 and the mounting member 50 in the longitudinal direction X can be mutually moved while maintaining the hermetic sealing of the translucent cover 30. . The detailed structure of the end cover 40 will be described later.

(Seal 43)
The sealing tools 43 are elastically arranged at both ends in the longitudinal direction X of the light-transmitting cover 30 in a state sandwiched between both ends in the longitudinal direction X of the light-transmitting cover 30 and the end cover 40. It is a member. The sealing member 43, which is an elastic member, is attached to the end 36 of the translucent cover 30 to close the opening of the end 36. The sealing tool 43 is manufactured using a resin material, and is a sealing member (gasket, packing, or the like) that is elastically deformed. Therefore, the sealing tool 43 seals both ends in the longitudinal direction X of the translucent cover 30 while being sandwiched between both ends in the longitudinal direction X of the translucent cover 30 and the end cover 40. . The sealing member 43 is formed of a resin material so as to be elastically deformed, and is in close contact with the translucent cover 30 and the end cover 40.

  The seal 43 has a seal main part 430, an inner peripheral part 435, an outer peripheral part 437, and a connection part 436. The sealing tool 43 has a sealing tool main portion 430, an inner peripheral portion 435, an outer peripheral portion 437, and a connecting portion 436 formed integrally. The seal main part 430 is formed so as to close the inside of the inner peripheral part 435. The sealing device main portion 430 is sandwiched between the fixing portion 56 of the fixing device 54 described later and the second cover main portion 420 of the second end cover 42. The sealing tool main portion 430 is formed in a plate shape, and in a state where the sealing tool 43 and the end cover 40 are engaged with each other, the electric wire insertion portion 431 is sealed on the surface side facing the end cover 40. A stopper tubular portion 433 is formed. The seal main part 430 contacts the second cover main part 420 of the second end cover 42 in a state where the seal 43 and the end cover 40 are engaged. The wire insertion portion 431 protrudes from the surface facing the end cover 40 in a state where the sealing tool 43 and the end cover 40 are engaged, and passes through the power line 81, the ground line 82, and the control line 83. An electric wire insertion hole 432 to be formed is formed. Although two sealing member tubular portions 433 are provided with the electric wire insertion portion 431 interposed therebetween, the number of the sealing member tubular portions 433 formed is not less than the number of the fixing portions 56 of the fixing tool 54. One or three or more may be used. The sealing member tubular portion 433 protrudes from the surface facing the end cover 40 in a state where the sealing member 43 and the end cover 40 are engaged. When the sealing tool 43 and the fixing tool 54 are engaged with each other, the boss 57 projecting from the fixing portion 56 of the fixing tool 54 is inserted into the sealing tool tubular portion 433. The sealing member tubular portion 433 is formed in a cylindrical shape. A screw insertion hole 434 for screwing the fixing screw 75 is formed at the tip of the sealing member tubular portion 433.

  An inner peripheral portion 435 is formed at a peripheral portion of the plate-shaped sealing tool main portion 430. The inner peripheral portion 435 is in contact with the end cover inner peripheral portion 425 of the second end cover 42 when the sealing member 43, which is an elastic member, is engaged with the second end cover 42 and the translucent cover 30. This is a portion sandwiched between the inner peripheral portion 38 of the end portion 36 of the translucent cover 30.

  An outer peripheral portion 437 of the sealing tool 43 is formed in an annular shape, and is disposed outside the inner peripheral portion 38 so as to face the inner peripheral portion 38. The outer peripheral portion 437 is formed between the outer wall portion 410a of the first end cover 41 and the outer peripheral portion of the translucent cover 30 in a state where the sealing tool 43 is engaged with the first end cover 41 and the translucent cover 30. 37.

  The connecting portion 436 of the sealing device 43 is located between the inner peripheral portion 38 and the outer peripheral portion 437 of the sealing device main portion 430. The connection portion 436 is configured to connect the first cover main portion 410 of the first end cover 41 and the light transmitting cover 30 in a state where the sealing tool 43 is engaged with the first end cover 41 and the light transmitting cover 30. This is a portion that is sandwiched between the cover end 35.

  The connecting member 44 is a connecting tool, and is provided at both ends in the longitudinal direction X of the lamp 3, and is a mounting bracket for mounting the lamp 3 to the lighting fixture 2. The connecting member 44 is fixed using two fixing screws 75 in a state where the surface on the center side (X2 side) in the longitudinal direction X (first direction) of the fixing portion 46 is in contact with the end surface of the boss portion 57. It is attached to 54 and fixed. The connecting member 44 is not directly fixed to the end cover 40 using screws or the like. The connecting member 44 is positioned and indirectly fixed via the sealing tool 43 which is in close contact with the boss 57 of the fixing tool 54. That is, the connecting member 44 is arranged outside the end cover 40 in the first direction which is the longitudinal direction X of the lamp 3, and is partially fixed to the mounting member 50 penetrating the end cover 40. At the same time, the other part is fixed to the lighting fixture 2. In the present embodiment, the connecting member 44 is formed by bending a metal plate. However, the connecting member 44 is not limited to a member formed by bending a metal plate material. For example, the connecting member 44 may be formed using other materials such as a resin and a ceramic. It may be formed by another method such as additive manufacturing. The connecting member 44 has a connecting portion 45, a fixing portion 46, and an engaging portion 47.

  The connecting portion 45 is a plate-like member extending from the lower end (Z2 side) to the end of the lamp 3 (X1 side) in the fixing portion 46. That is, the connecting portion 45 is a plate-like member that protrudes from the lower edge of the fixing portion 46. The connecting portion 45 projects in a state opposite to the end cover 40 when engaged with the end cover 40. In other words, the connecting portion 45 protrudes in the direction opposite to the direction in which the engaging portion 47 protrudes. When the lamp 3 is attached to the lighting fixture 2, an upper surface of the connecting part 45 other than the step part 450 abuts on the connecting part 27 of the lighting fixture 2.

  The connecting portion 45 is formed with a stepped portion 450 having a different surface height, and the stepped portion 450 is formed with a connecting screw insertion portion 451 into which the connecting screw 48 is inserted. The step portion 450 is a portion that is partially recessed (Z2 side) in the central region of the connecting portion 45 in the short direction Y. In the step portion 450 of the connecting portion 45, a retaining washer 480 for fixing the connecting screw 48 that has passed through the connecting screw insertion portion 451 is arranged. The retaining washer 480 is fitted to the connecting screw 48 in advance so as not to come off from the connecting screw 48. The height (depth, step) dimension of the step 450 is the same as the thickness of the retaining washer 480. When the lamp 3 is attached to the lighting fixture 2, the upper surface (Z1 side) of the retaining washer 480 abuts the connecting portion 27 of the lighting fixture 2, and the lower (Z2 side) surface of the retaining washer 480. Abuts on the step 450 of the connecting member 44. The shape and area of the step 450 are determined in consideration of the shape and dimensions of the retaining washer 480. The connecting screw insertion portion 451 is formed in a slit shape at the approximate center of the step portion 450 in the lateral direction Y from the end side (X1 side) in the longitudinal direction X (first direction). The connecting screw insertion portion 451 is formed with a larger width than the shaft portion 481 of the connecting screw 48, and the shaft portion 481 of the connecting screw 48 is inserted. The shape of the connection screw insertion portion 451 is not limited to a slit shape, and may be a circular or polygonal through hole having a cross section including an ellipse.

  The fixing portion 46 is a portion of the connecting portion 45 that stands upright from an end on the center side (X2 side) in the longitudinal direction X (first direction). The fixing part 46 is a plate-shaped member. The fixing part 46 sandwiches the end cover 40 and the sealing tool 43 together with the fixing tool 54 of the mounting member 50. A fixing screw insertion hole 460 for screwing the fixing screw 75 is formed in the fixing portion 46. The fixing screw insertion hole 460 is a through hole through which a fixing screw 75 screwed into the screw hole 58 of the boss portion 57 is inserted. The fixing portion 46 is attached to the boss portion 57 by a fixing screw 75 inserted into the fixing screw insertion hole 460.

  An electric wire insertion hole 470 through which electric wires such as the power supply line 81, the ground line 82, and the control line 83 pass is formed in the connecting member 44 in a slit shape. The electric wire insertion hole 470 has an upper slit 4710 and an end slit 4711. The electric wire insertion hole 470 formed in the fixing portion 46 is referred to as an end slit 4711. The end slit 4711 is formed in the up-down direction (Z-axis direction) of the connecting member 44. The end slit 4711 is connected to an upper slit 4710 formed in the engaging portion 47 and described later.

  An engagement piece insertion hole 461 may be formed in the fixing portion 46. The engagement piece insertion hole 461 is a through hole provided in the fixing part 46 corresponding to the cross-sectional shape of the second cover engagement piece 422 and the second cover engagement claw 423 of the second end cover 42. The engagement piece insertion hole 461 is provided with a second cover engagement piece 422 and a second cover engagement claw 423 of the second end cover 42 that move in the longitudinal direction X (first direction) with the extension of the translucent cover 30. Are formed so as not to interfere with the fixing portion 46 of the connecting member 44. The engagement piece insertion hole 461 is provided when the amount of extension of the translucent cover 30, that is, when the amount of movement of the second cover engagement piece 422 and the second cover engagement claw 423 is small, or when the end cover 40 It is not necessary if it is integrally formed, and is not an essential component of the lamp 3.

  The engaging portion 47 is a portion of the fixing portion 46 extending from the upper end (Z1 side) end to the center side (X2 side) in the longitudinal direction X (first direction). That is, the engaging portion 47 is a plate-shaped member that protrudes from the upper edge of the fixing portion 46. The engagement portion 47 protrudes toward the end cover 40 in a state where the engagement portion 47 is engaged with the end cover 40, and is disposed above the lamp 3 (Z1 side) in the lamp 3.

  As described above, the electric wire insertion hole 470 through which electric wires such as the power supply line 81, the ground line 82, and the control line 83 pass is formed in the connecting member 44 in a slit shape. The electric wire insertion hole 470 formed in the engaging portion 47 is referred to as an upper slit 4710. The upper slit 4710 is formed along the longitudinal direction X of the lamp 3. The upper slit 4710 is connected to an end slit 4711 formed in the fixed part 46. The upper slit 4710 is provided on the engaging portion 47 of the connecting member 44 so that the end 36 and the end cover 40 of the translucent cover 30 are free ends that are not restricted from moving in the longitudinal direction X (first direction). It is a formed slit. A cover wire holding portion 416 inserted from an insertion hole 472 to be described later is engaged with the upper slit 4710 in a state where movement in the short direction Y and the vertical direction Z is restricted. Note that the movement of the cover electric wire holding portion 416 arranged in the insertion hole 472 is not restricted in the longitudinal direction X (first direction). When the cover wire holding portion 416 is engaged with the upper slit 4710, the position of the connecting member 44 with respect to the end cover 40 is determined, so that the fixing member 75 is used to fix the connecting member 44 to the boss portion 57 using the fixing screw 75. The screw 75 can be easily positioned. When all or a part of the power supply line 81, the ground line 82, and the control line 83 are bundled with a braided tube or the like, they are generally hard and hard to bend. However, since the connecting member 44 has the end slit 4711 formed so as to be connected to the upper slit 4710, even if the power supply line 81 or the like is bundled and becomes difficult to bend, the wiring becomes easy.

  The engaging portion 47 has an insertion hole 472 into which a cover wire holding portion 416 described later is inserted. The insertion hole 472 is formed continuously with the upper slit 4710. The insertion hole 472 is a through-hole formed in the fixing portion 46 and is formed so as to be connected to the center side (X2 side) of the upper slit 4710 in the longitudinal direction X (first direction). The insertion hole 472 is formed in a shape and a size into which the cover electric wire holding portion 416 can be inserted. The cover electric wire holding portion 416 inserted from the insertion hole 472 moves along the longitudinal direction X in a state of being engaged with the upper slit 4710 according to the extension of the translucent cover 30. Therefore, the cover electric wire holding portion 416 does not hinder the expansion and contraction of the translucent cover 30 and the movement of the end cover 40 and the sealing tool 43 due to the expansion and contraction of the translucent cover 30.

(Mounting member 50)
The attachment member 50 is a member that fixes the light emitting unit 60, the control unit 80, and the like to the space inside the translucent cover 30, as shown in FIGS. 3, 5, and 6. The attachment member 50 is a member that fixes the attachment member 50 to the end cover 40 and the connecting member 44 attached to both ends of the translucent cover 30. The attachment member 50 has a pedestal 51 and a fixture 54. The mounting member 50 is housed in the translucent cover 30. 5 and 6, the mounting member 50 is fixed to the end cover 40 and the connecting member 44 by fixing screws 75. Therefore, the attachment member 50 is not directly fixed to the translucent cover 30, but is fitted (fitted) to the cover ends 35 on both sides in the longitudinal direction X of the translucent cover 30. It is connected to the light-transmitting cover 30 via 40.

  The pedestal 51 is a main part of the mounting member 50, and the light emitting unit 60, the control unit 80, and the like are mounted thereon. In the present embodiment, pedestal 51 is formed by bending a metal plate. However, the pedestal 51 is not limited to the one formed by bending a metal plate material. For example, the pedestal 51 may be formed using a material other than metal, such as resin and ceramic, and may be formed by extrusion molding, It may be formed by another method such as additive manufacturing. Although not shown, the pedestal 51 is subjected to a surface treatment or a functional member is laid on the pedestal 51 in order to improve heat radiation efficiency (thermal emissivity) or light use efficiency (reflectance). May be. The pedestal 51 has a mounting surface 52 and a side 53. The mounting surface 52 of the pedestal 51 is formed in an elongated flat plate shape, and the light emitting unit 60 is mounted on the surface which is the surface on the irradiation side. In addition, a control unit 80 such as a power supply device is attached to the back surface which is the surface on the appliance side.

  As shown in FIG. 5, a screw hole 520 is formed in the mounting surface 52 of the pedestal 51. The screw holes 520 are formed at both ends in the longitudinal direction X of the mounting surface 52. A fixing screw 75 for fixing the mounting member 50 to the end cover 40 and the connecting member 44 is inserted into the screw hole 520. A notch 521 is formed in the mounting surface 52 to allow the feeder 84 and the like to pass through. The notch 521 is formed at the edge of the mounting surface 52 at both ends in the longitudinal direction X of the mounting surface 52. As shown in FIG. 6, a mounting hole 522 which is a through-hole is formed in the mounting surface 52 at the other end of the lamp 3 instead of forming the notch 521. The board capturing member 70 is inserted into the mounting hole 522. The substrate capturing member 70 includes a capturing section 701 and an engaging section 702, and has a function of capturing the light emitting section 60 so as not to approach or come into contact with the translucent cover 30.

  Side portions 53 of the pedestal 51 are standing portions bent from both end portions in the short direction Y of the mounting surface portion 52 toward the irradiation side. The side portion 53 is erected from the edge of the mounting surface portion 52 along the longitudinal direction X of the mounting surface portion 52, thereby improving the rigidity of the pedestal 51. In the present embodiment, the side portion 53 is erected only on the instrument side where the control section 80 and the like are arranged. However, the side portion 53 may be erected only on the irradiation side where the light emitting section 60 is disposed, or may be erected on both the irradiation side and the instrument side. Further, in the present embodiment, the side portions 53 are erected at both end portions in the short direction Y of the mounting surface portion 52, but, for example, other than the both end portions, such as a central portion in the short direction Y of the mounting surface portion 52. May be erected.

  The fixtures 54 are arranged at both ends in the longitudinal direction X of the pedestal 51, and are members that fix the attachment member 50 to the end cover 40 and the connection member 44 attached to both ends of the translucent cover 30. . The fixing tool 54 penetrates the end cover 40 and the connecting member 44 is fixed. Here, in the present embodiment, the fixing tool 54 is formed of a separate member from the pedestal 51, but the configuration of the fixing tool 54 is not limited to this configuration. For example, the pedestal 51 and the fixture 54 may be integrally formed by bending the both ends of the pedestal 51 or the like, and the pedestal 51 may have a portion having the same function as the fixture 54. The fixture 54 may be attached to the pedestal 51 using a fixing member such as an attachment screw (not shown).

  The fixture 54 has a mounting portion 55 and a fixing portion 56, and is manufactured by bending a sheet metal. The fixing tool 54 is a metal fitting, but is not limited to the metal fitting. For example, the fixing tool 54 may be formed using another material such as a resin or a ceramic. It may be formed by a method.

  The mounting portion 55 of the fixture 54 is a portion for attaching the fixture 54 to the pedestal 51, and is fixed to both end portions of the pedestal 51 using fixing screws 75. The attachment portion 55 may be structurally integrated with the pedestal 51 by, for example, a method such as caulking, welding (welding), or fitting (engaging).

  The fixing portion 56 of the fixing member 54 sandwiches the end cover 40 and the sealing member 43 together with the fixing portion 46 of the connecting member 44. That is, in a state where the translucent cover 30, the sealing tool 43, the end cover 40, and the connecting member 44 are combined, a sealing is provided between the fixing portion 56 and the fixing portion 46 of the connecting member 44. A stop 43 is arranged. The fixing part 56 is provided with a boss part 57.

  The boss portion 57 is attached to the fixing portion 56 by, for example, a method such as caulking, welding (welding), or fitting (engaging). The boss portion 57 has a screw hole 58 into which a fixing screw 75 is screwed. A screw groove is formed on the inner peripheral side of the screw hole 58. Then, from outside the connecting member 44, the fixing screw insertion hole 460 of the connecting member 44, the end cover insertion portion 421 of the second end cover 42, the first cover through hole 411 of the first end cover 41, and the sealing device The fixing screw 75 is inserted into the screw insertion hole 434 of the 43. Then, the fixing screw 75 is screwed into the screw hole 58 of the boss 57, and the connecting member 44 is fixed to the fixing tool 54 of the mounting member 50. That is, the connecting member 44 is fixed to the boss 57 of the fixture 54.

(Light emitting unit 60)
The light emitting section 60 includes a light emitting element 61, a substrate 62, and the like, as shown in FIGS. The light emitting element 61 emits light by supplying power. In this embodiment mode, a light emitting diode (Light Emitting Diode; hereinafter, referred to as LED) element is used as the light emitting element 61, and the light emitting element 61 is arranged on the mounting surface of the substrate 62 along a longitudinal direction X, in a row, in a zigzag, or the like. Implemented in The light emitting element 61 of the present embodiment is packaged by disposing a phosphor that converts the wavelength of blue light into yellow light on an LED chip that emits blue light having a wavelength of 440 to 480 [nm]. This is a pseudo white LED element that is a surface mount component. Here, the light emitted from the light emitting element 61 has the maximum luminous flux value and spreads symmetrically with respect to the optical axis L perpendicular to the light emitting surface by the irradiation angle α. In the present embodiment, it is assumed that the irradiation angle α of the light emitting element 61 is 120 degrees. As the light emitting element 61, a solid state laser (Solid State Laser), a semiconductor laser (Semiconductor Laser), an organic EL (Electro Luminescence), an inorganic EL, or the like may be used. As the substrate 62, a glass-epoxy substrate (FR-4), a glass-composite substrate (CEM-3), a paper epoxy substrate (FR-3), a paper phenol substrate (XPC), a metal base substrate, or the like is used.

  The control unit 80 is a power supply device, converts power supplied from the outside into power for turning on the light emitting element 61, and supplies the power to the light emitting element 61. In the present embodiment, as described above, the control unit 80 is mounted on the back surface of the mounting surface 52 of the pedestal 51 using a fixing member such as a screw (not shown) together with the light emitting element 61 and the like. It is housed in a cylindrical translucent cover 30. However, the control unit 80 may be attached to the lighting fixture 2 instead of the lamp 3. In this case, the electric wire is a power supply line that functions as a supply path of the electric power supplied from the control unit 80 to the light emitting element 61. One end of each of the electric wires such as the power supply line 81, the ground line 82, and the control line 83 in the present embodiment is connected to the control unit 80. The other end is connected to a terminal block (not shown) attached to the lighting fixture 2.

(Details of the end cover 40)
FIG. 8 is a divided perspective view illustrating the end cover 40 of the lamp 3 according to the embodiment of the present invention. FIG. 9 is a divided perspective view illustrating the end cover 40 of the lamp 3 according to the embodiment of the present invention as viewed from the opposite side of FIG. The detailed structure of the end cover 40 will be described with reference to FIGS. The end cover 40 has a first end cover 41 serving as an outer cover and a second end cover 42 serving as an inner cover. The second end cover 42 serving as the inner cover is disposed inside the first end cover 41 serving as the outer cover. That is, the end cover 40 is configured by integrating a plurality of components. Here, the first end cover 41 and the second end cover 42 of the present embodiment will be described as being formed using a resin material. However, the material of the first end cover 41 and the second end cover 42 is not limited to a resin material. It may be formed using a metal material other than the resin material, a ceramic material, or the like. In the present embodiment, the first end cover 41 and the second end cover 42 are formed as separate members, and are fitted (fitted) to be integrated. It may be formed as one member.

  The first end cover 41 includes a first cover main portion 410, a connection guide 413, a cover lower surface portion 414, a cover wire holding portion 416, a cover end surface portion 417, and an end cover outer peripheral portion 419. The first cover main part 410 is a plate-shaped member, and is an outer end serving as a base of the end cover 40. As shown in FIG. 7, the first cover main part 410 forms the outer end of the lamp 3, and in a state where the translucent cover 30, the seal 43, and the end cover 40 are combined, It is arranged outside the end 36 in the first direction which is the longitudinal direction X.

  The connection guide 413 guides a tool such as a driver from the cover lower surface through-hole 415 shown in FIG. 2 toward the connection screw 48 previously attached to the connection screw insertion portion 451 formed in the step portion 450 of the connection member 44. It is a cylindrical guide wall. The diameter of the connection guide 413 is larger than the diameter of the head of the connection screw 48 that is the maximum diameter of the connection screw 48.

  The cover lower surface portion 414 is formed on the end side of the first cover main portion 410 in the first direction (longitudinal direction X), and is a part of a decorative cover that hides the connecting member 44, the connecting screw 48, and the connecting portion 27 of the lighting fixture 2. Functions as a unit. In this embodiment, the cover lower surface portion 414 is continuous with the end cover outer peripheral portion 419 in consideration of designability. The cover lower surface 414 is a side wall formed on the peripheral portion of the first cover main portion 410, and is formed from the side surface of the peripheral portion of the first cover main portion 410 to the lower surface. The cover lower surface portion 414 forms an outer wall portion 410 a which is a side wall formed on the peripheral portion of the first cover main portion 410 together with the end cover outer peripheral portion 419. The outer wall portion 410a is formed as a peripheral wall shape rising from the periphery of the first cover main portion 410, which is the outer end portion. That is, the first end cover 41 has a first cover main portion 410 which is an outer end portion, and an outer wall portion 410a. The outer wall portion 410a is formed on the first cover main portion 410, which is the outer end portion, and is in the longitudinal direction X in a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. It is arranged outside the end 36 in a second direction intersecting the first direction. Here, the second direction is all directions intersecting the longitudinal direction X, including the lateral direction Y and the vertical direction Z.

  The cover wire holding portion 416 is formed on the upper surface of the outer peripheral portion 419 of the end cover. The cover electric wire holding portion 416 protrudes upward (Z1 direction) from the outer peripheral portion 419 of the end cover. The cover wire holding section 416 is electrically connected to a terminal block (not shown) provided in the lighting fixture 2 and the control section 80, and supplies a power supply line 81 for supplying external power to the control section 80 and a potential of the lamp 3. And a control line 83 for controlling the control unit 80 from the outside.

  The cover end face portion 417 is formed so as to cover the end side of the cover lower surface portion 414 in the first direction (longitudinal direction X), and covers the connection member 44, the connection screw 48, and the connection portion 27 of the lighting fixture 2. Act as a part.

  The end cover outer peripheral portion 419 is a side wall formed at the peripheral portion of the first cover main portion 410, and is formed from the side surface of the peripheral portion of the first cover main portion 410 to the upper surface. The outer peripheral portion 419 of the end cover, together with the lower surface portion 414 of the cover, forms an outer wall portion 410 a which is a side wall formed on a peripheral portion of the first cover main portion 410. The end cover outer peripheral portion 419 is a portion that is fitted to the end 36 of the translucent cover 30 with the sealing tool 43 therebetween. In the present embodiment, the end cover outer peripheral portion 419 is continuous with the cover lower surface portion 414 in consideration of designability.

  In the first end cover 41, a first cover through hole 411, a first cover connection hole 412, a cover lower surface through hole 415, and a cover end surface through hole 418 are formed. In the state where the end cover 40, the sealing tool 43, and the mounting member 50 are combined, the sealing tool tubular portion 433 and the boss 57 are inserted into the first cover through-hole 411. In the present embodiment, four first cover connection holes 412 are formed in the first cover main part 410, and four second cover engagement pieces 422 formed in the second end cover 42 are inserted. Is done. The second cover engaging claws 423 formed at the tips of the second cover engaging pieces 422 are hooked into and engaged with the first cover connecting holes 412, so that the second end cover 42 is moved to the first end. It is attached to the cover 41. The cover lower surface through-hole 415 is a working hole for inserting a tool such as a screwdriver toward the connecting screw 48 previously attached to the connecting screw insertion portion 451 formed in the step portion 450 of the connecting member 44, The hole is closed by the cover lid 49 after the application. The cover lower surface through-hole 415 functions as an outlet for the connection screw 48 when the connection screw 48 comes off the connection screw insertion portion 451. The cover end surface through-hole 418 is a discharge hole from which liquid such as moisture or dust accumulated in the end cover is discharged.

  The second end cover 42 constitutes the end cover 40 together with the first end cover 41, and the first end cover 41 is combined with the second end cover 42 and the first end cover 41. It is arranged inside. The end cover 40 is fitted so that the opening formed by the inner peripheral portion 425 of the end cover of the second end cover 42 and the opening formed by the outer wall portion 410a of the first end cover 41 face each other. It is formed in a shape. In the end cover 40, the first cover main portion 410 of the first end cover 41 and the second cover main portion 420 of the second end cover 42 constitute a wall facing each other.

  The second end cover 42 has a second cover main portion 420, a second cover engagement piece 422, a second cover engagement claw 423, and an end cover inner peripheral portion 425. The second cover main part 420 is a plate-shaped member, and when the end cover 40 and the sealing tool 43 are combined with each other, the second cover main part 420 faces the sealing tool main part 430 of the sealing tool 43 and is in contact therewith. It is the end. The second cover main portion 420 as the inner end portion is the first cover main portion 410 as the outer end portion of the end cover inner peripheral portion 425 as the inner wall portion in the first direction which is the longitudinal direction X of the lamp 3. A surface of the end cover 40 opposite to the first cover main portion 410 is formed at an end opposite to the end. That is, the second end cover 42 has the second cover main portion 420 that is an inner end portion, and the end cover inner peripheral portion 425 that is an inner wall portion.

  In the present embodiment, four second cover engagement pieces 422 are formed, and the second cover engagement piece 422 is in a state where the first end cover 41 and the second end cover 42 are combined. , Are inserted into four first cover connection holes 412 formed in the first end cover 41. The second cover engaging claws 423 are provided at the distal ends of the second cover engaging pieces 422, respectively, and hook into the first cover connecting holes 412 provided in the first cover main portion 410 of the first end cover 41. Get engaged by things. The second cover engaging claw 423 is engaged with the first cover connection hole 412, so that the second end cover 42 is attached to the first end cover 41, and the first end cover 41 and the second end cover 41 are attached. The cover 42 is an integral structure.

  The end cover inner peripheral portion 425 is a side wall formed on the peripheral portion of the second cover main portion 420. The inner peripheral portion 425 of the end cover is an inner wall portion formed in a peripheral wall shape so as to face the outer wall portion 410a with the sealing member tubular portion 433 and the end portion 36 interposed therebetween in the end cover 40. is there. The end cover inner peripheral portion 425 is an inner wall portion that is arranged inside the end portion 36 in the second direction in a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. is there. The detailed structure of the inner peripheral portion 425 of the end cover will be described later.

  An end cover insertion portion 421 is formed in the second end cover 42. The end cover insertion portion 421 has an electric wire insertion portion 431 formed in the sealing device main portion 430 of the sealing device 43 and a sealing device tube formed in the sealing device main portion 430 of the sealing device 43. The shape part 433 is inserted. Further, in a state where the end cover 40, the sealing tool 43, and the mounting member 50 are combined, the sealing tool tubular portion 433 and the boss 57 are inserted into the end cover insertion portion 421. An insertion wall 421a is formed along an edge forming the end cover insertion portion 421. The insertion wall 421a is a peripheral wall formed along the edge of the end cover insertion portion 421, and is formed to face the end cover inner peripheral portion 425. The insertion wall 421a abuts on the sealing member tubular portion 433 into which the boss 57 is inserted when the end cover 40, the sealing member 43, and the mounting member 50 are combined.

  FIG. 10 is a schematic diagram illustrating the sealing structure 100 of the lamp 3 according to the embodiment of the present invention. The detailed structure of the end cover inner peripheral portion 425 will be described with reference to FIG. 10, and the sealing structure 100 of the lamp 3 will be described. The components of the sealing structure 100 of the lamp 3 include an end cover 40, a sealing tool 43, and a light-transmitting cover 30. The end cover 40 is a sealing member that is an elastic member in the first direction that is the longitudinal direction X of the lamp 3 in a state in which the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. It has a first cover main part 410 which is an outer end arranged outside the tool 43. In a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined, the end cover 40 has an end portion in a second direction that intersects the first direction that is the longitudinal direction X. It has an outer wall portion 410a arranged outside of 36. In the present embodiment, the inner peripheral surface 4190 of the outer peripheral portion of the end cover, which is the inner peripheral surface of the outer peripheral portion 419 of the end cover, has a tilt angle θ1 required for ordinary resin molding. In contrast, a draft taper with an inclination angle θ1 ≒ 1 ° is formed. Further, the end cover 40 is an inner wall portion that is disposed inside the end 36 in the second direction in a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. An end cover inner peripheral portion 425 is provided.

  The sealing member 43, which is an elastic member, is sandwiched between the end portion 36, the first cover main portion 410, which is the outer end portion, the outer wall portion 410a, and the end cover inner peripheral portion 425, which is the inner wall portion. It is attached to the part 36. More specifically, the sealing member 43 which is an elastic member has an outer peripheral portion 437 of the sealing member 43 in a state where the light-transmitting cover 30, the sealing member 43, and the end cover 40 are combined. It is attached to the end 36 while being sandwiched between the end 36 and the outer wall 410a. Further, the sealing member 43 which is an elastic member has an inner peripheral portion 435 of the sealing member 43 having an end portion in a state where the translucent cover 30, the sealing member 43, and the end cover 40 are combined. 36 is attached to the end 36 in a state of being sandwiched between the end cover 36 and the inner peripheral portion 425 of the end cover. That is, the sealing member 43, which is an elastic member, is attached to the end portion 36, the second cover main portion 420, which is the inner end portion, the outer wall portion 410a, and the end cover inner peripheral portion 425, which is the inner wall portion, in an end-to-end state. The opening formed by the end portion 36 attached to the portion 36 is sealed.

  The end cover inner peripheral portion outer surface portion 4250 is the outer peripheral surface of the end cover inner peripheral portion 425, and forms an inclined surface as a first inclined portion. In the first direction (longitudinal direction X), the end cover inner peripheral portion outer surface portion 4250, which is the first inclined portion, moves from the second cover main portion 420 to the first cover main portion 410 in the first direction (longitudinal direction). X) is inclined so that the distance to the end 36 in the second direction intersecting with X) increases. That is, the distance from the end portion 36 in the second direction to the end portion 36 in the second direction increases as the distance from the center of the translucent cover 30 to the end portion 36 in the first direction increases. An end cover inner peripheral portion outer surface portion 4250 which is a first inclined portion that is inclined is formed. In other words, in the first direction (longitudinal direction X), the end cover inner peripheral portion outer surface portion 4250 moves from the first cover main portion 410 toward the second cover main portion 420 in the first direction (longitudinal direction). X) is inclined so that the distance from the end portion 36 in the second direction intersecting with X) becomes small. That is, the distance from the end 36 of the light-transmitting cover 30 toward the center in the first direction is reduced with respect to the end cover inner peripheral portion 425 that is the inner wall. An end cover inner peripheral portion outer surface portion 4250 which is a first inclined portion that is inclined is formed.

  The inclination angle θ2 of the end cover inner peripheral portion outer surface portion 4250 with respect to the reference line T along the longitudinal direction X is an inclination angle θ2> 0 °, and preferably, the inclination angle θ2 ≧ the inclination angle θ1. When the inclination angle θ2 is equal to the inclination angle θ1, the distance between the outer wall 410a and the inner peripheral wall 425 of the end cover in the second direction is determined by the length of the lamp 3. The same is true in the first direction, which is the direction X.

<Assembly of lamp 3>
When assembling the lamp 3, usually, first, the seal 43 is attached to the end 36 of the translucent cover 30, and then the end cover 40 is attached to the translucent cover 30 with the seal 43 interposed therebetween. The order of attachment to the end 36 is common. At this time, the translucent cover 30 is disposed between the inner peripheral portion outer surface portion 4352 and the outer peripheral portion inner surface portion 4370 of the sealing tool 43. For example, when assembling the lamp 3, the sealing member 43 fitted into the end cover 40 is difficult to come off, so that the lamp 3 can be assembled in a different order without impairing the assemblability. When assembling the lamp 3, the method and procedure for mounting (fitting) the sealing tool 43 have more options, so that the lamp 3 can be assembled by various procedures. In this embodiment, the outer peripheral portion 4250 of the inner peripheral portion of the end cover is formed over the entire periphery of the inner peripheral portion 425 of the end cover. Therefore, the second direction is all directions (360 °) crossing the first direction (longitudinal direction X). Note that the end cover inner peripheral portion outer surface portion 4250 forming the inclined portion does not need to be provided on all surfaces of the outer peripheral surface of the end cover inner peripheral portion 425, and at least the end cover inner peripheral portion 425. What is necessary is just to be provided in a part of outer peripheral surface. Here, the part of the outer peripheral surface of the end cover inner peripheral part 425 may be either a part in the first direction (longitudinal direction X) or a part in the circumferential direction. The end cover inner peripheral portion outer surface portion 4250 may be provided at one location of the end cover inner peripheral portion 425, or may be provided at a plurality of locations.

<Effects>
As described above, the sealing member 43, which is an elastic member, includes the end portion 36, the first cover main portion 410, which is the outer end portion, the outer wall portion 410a, and the end cover inner peripheral portion 425, which is the inner wall portion. It is attached to the end 36 in a sandwiched state. The end cover inner peripheral portion 425, which is an inner wall portion, is configured such that the distance from the center of the light-transmitting cover 30 to the end portion 36 in the first direction increases as the distance from the end portion 36 in the second direction increases. An end cover inner peripheral portion outer surface portion 4250 which is a first inclined portion that is inclined is formed. The end cover inner peripheral portion 425 is provided with an end cover inner peripheral portion outer surface portion 4250, and the end cover inner peripheral portion outer surface portion 4250 is an elastic member fitted into the end cover 40 due to such inclination. Certain seals 43 are less likely to come off. The inner peripheral portion inner surface portion 4350 of the sealing member 43 faces the inclined end cover inner peripheral portion outer surface portion 4250 in a state where the first end cover 41, the second end cover 42, and the sealing member 43 are combined. Contact, and contact. When the first end cover 41, the second end cover 42 and the seal 43 are combined, the inner peripheral surface 4350 of the inner periphery of the end cover 425 of the end cover inner peripheral part 425 is closed. It makes surface contact with the outer surface 4250. Therefore, the movement of the inner peripheral portion 4350 of the inner peripheral portion of the sealing tool 43 is restricted by the inclination of the outer peripheral portion 4250 of the inner peripheral portion of the end cover. When a force is applied to the translucent cover 30 to which the sealing tool 43 is in close contact in the first direction (longitudinal direction X) in a direction (right direction X2 in FIG. 10) from the end cover 40, the translucent cover 30 may be transparent. There is no possibility that the light cover 30 and the sealing tool 43 come off from the end cover 40. If the seal 43 moves in a direction (rightward direction X2 in FIG. 10) that comes out of the end cover 40, the seal 43 moves toward the end 36 of the translucent cover 30 (upward in FIG. 10). I do. Therefore, the degree of adhesion between the translucent cover 30 and the end cover 40 and the sealing tool 43 is increased, and the translucent cover 30 and the sealing tool 43 are less likely to come off the end cover 40. More specifically, the lighting device 3 and the sealing structure 100 of the lighting device 3 include the end portion 36 of the translucent cover 30, the end cover inner peripheral outer surface 4250, and the end cover outer peripheral inner surface portion 4190 of the end cover 40. Thus, the degree of adhesion with the sealing tool 43 is increased. Therefore, in the lighting device 3 and the sealing structure 100 of the lighting device 3, the translucent cover 30 and the sealing device 43 do not easily come off the end cover 40. That is, in the lighting device 3 and the sealing structure 100 of the lighting device 3, there is no possibility that the translucent cover 30 and the sealing device 43 come off from the end cover 40.

  The end cover 40 has the shape described above, and the amount of elastic deformation of the outer peripheral portion 437 of the sealing member 43 is smaller than that of the connection portion 436 on the side where rainwater enters. Since the side of the main part 430 is relatively smaller, the lamp 3 can easily maintain the water stoppage. In addition, the light-transmitting cover 30 and the end cover 40 are strongly adhered to the sealing tool 43, and the lamp 3 is kept water-tight. More specifically, the end portion 36 of the translucent cover 30, the end cover inner peripheral portion outer surface portion 4250 and the end cover outer peripheral portion inner surface portion 4190 of the end cover 40, and the sealing member 43 are strongly adhered to each other, The lamp 3 and the sealing structure 100 are kept water-tight.

  The translucent cover 30, which is an outer shell, is a long hollow body having at least one end 36 opened, and houses the substrate 62 on which the light emitting element 61 is mounted. The longitudinal direction X of 30 is the first direction. Therefore, the lamp 3 can secure the degree of adhesion between the translucent cover 30, the sealing member 43, and the end cover 40, and can maintain the water blocking property. As a result, the lamp 3 and the sealing structure 100 of the lamp 3 can be maintained. Can protect the light emitting element 61 disposed inside the hollow body.

  Further, the distance between the outer wall 410a in the second direction and the inner peripheral portion 425 of the end cover in the second direction is such that the distance between the center of the translucent cover 30 which is the outer periphery in the first direction and the distance from the center to the end. It becomes larger toward 36. Therefore, the sealing member 43, which is an elastic member fitted into the end cover 40, does not easily come off. Further, the end portion 36 of the translucent cover 30, the outer peripheral portion 4250 of the inner peripheral portion of the end cover of the end cover 40, and the inner peripheral portion 4190 of the outer peripheral portion of the end cover are strongly adhered to the seal 43, and the lamp 3 and The sealing structure 100 of the lamp 3 maintains water stopping.

  In the end cover 40, the distance between the outer wall portion 410a and the inner peripheral portion 425 of the end cover in the second direction may be the same in the first direction. In this case, since the inclination of the end cover outer peripheral inner surface 4190 and the inclination of the end cover inner peripheral outer surface 4250 are at the same angle, when combined with the end cover 40, the user can use the seal 43 and the end. This facilitates engagement with the unit cover 40.

(Modification 1)
FIG. 11 is a schematic diagram illustrating a first modification of the sealing structure 100 of the lamp 3 according to the embodiment of the present invention. A draft taper is formed on the inner peripheral surface 4250a of the end cover so that the inclination angle θ3 required for normal resin molding is about 1 ° with respect to the reference line T along the longitudinal direction X. Have been. Further, this is a modification in which the inner surface 4190a of the outer peripheral portion of the end cover forms an inclined surface as a second inclined portion corresponding to the first inclined portion. In the first direction (longitudinal direction X), the end cover outer peripheral portion inner surface portion 4190a intersects with the first direction (longitudinal direction X) from the first cover main portion 410 toward the second cover main portion 420. It is inclined so that the distance from the end 36 is reduced in two directions. That is, the outer wall portion 410a is a second inclined portion that is inclined so that the distance from the end portion 36 of the translucent cover 30 toward the center in the first direction becomes smaller in the second direction. An end cover outer peripheral portion inner surface portion 4190a is formed. In other words, in the first direction (longitudinal direction X), the end cover outer peripheral portion inner surface portion 4190a that is the second inclined portion moves in the first direction from the second cover main portion 420 toward the first cover main portion 410 in the first direction. It is inclined so that the distance from the end 36 increases in the second direction intersecting. That is, the outer wall portion 410a is a second inclined portion that is inclined such that the distance from the center of the translucent cover 30 to the end portion 36 in the first direction increases with the distance to the end portion 36 in the second direction. An end cover outer peripheral portion inner surface portion 4190a is formed.

  The inclination angle θ4 of the inner surface 4190a of the outer peripheral portion of the end cover is such that the inclination angle θ4> 0 ° with respect to the reference line T along the longitudinal direction X, and preferably, the inclination angle θ4 ≧ the inclination angle θ3. When the inclination angle θ4 is equal to the inclination angle θ3, the distance between the outer wall 410a and the inner peripheral part 425 of the end cover in the second direction is equal to the length of the lamp 3. The same is true in the first direction, which is the direction X. Further, a cover flange 426 is formed on the second end cover 42a, and in a state where the second end cover 42a and the sealing tool 43a are combined, the cover flange 426 is connected to the connecting portion 436 of the sealing tool 43a. Opposes, abuts, and adheres to.

  As described above, the sealing member 43, which is an elastic member, includes the end portion 36, the first cover main portion 410, which is the outer end portion, the outer wall portion 410a, and the end cover inner peripheral portion 425, which is the inner wall portion. It is attached to the end 36 in a sandwiched state. The outer wall portion 410a has an end portion that is a second inclined portion that is inclined such that a distance from the center 36 of the light-transmitting cover 30 to the end portion 36 in the first direction increases with respect to the end portion 36 in the second direction. An outer peripheral portion inner surface portion 4190a is formed. The outer wall portion 410a is provided with an end cover outer peripheral portion inner surface portion 4190a, and since the end cover outer peripheral portion inner surface portion 4190a is inclined in this manner, the sealing member 43, which is an elastic member fitted into the end cover 40, is difficult to come off. Become. The outer peripheral portion 4372 of the outer peripheral portion of the sealing member 43 faces the inclined inner peripheral portion 4190a of the outer peripheral portion of the end cover in a state where the first end cover 41, the second end cover 42, and the sealing member 43 are combined, It is a part that abuts and adheres. When the first end cover 41, the second end cover 42, and the seal 43 are combined, the outer peripheral portion 4372 of the outer periphery of the seal 43 is in contact with the inner surface 4190a of the end cover outer peripheral portion of the outer wall 410a. Contact. Therefore, the movement of the outer peripheral portion 4372 of the outer peripheral portion of the sealing tool 43 is regulated by the inclination of the inner peripheral portion 4190a of the outer peripheral portion of the end cover. When a force is applied to the light-transmitting cover 30 to which the sealing tool 43 is in close contact in the first direction (longitudinal direction X) in a direction (rightward direction X2 in FIG. 11) from the end cover 40. There is no possibility that the light cover 30 and the sealing tool 43 come off from the end cover 40. If the sealing tool 43 moves in a direction (rightward direction X2 in FIG. 11) that comes out of the end cover 40, the sealing tool 43 moves toward the end 36 of the translucent cover 30 (upward in FIG. 11). I do. Therefore, the degree of adhesion between the translucent cover 30 and the end cover 40 and the sealing tool 43 is increased, and the translucent cover 30 and the sealing tool 43 are less likely to come off the end cover 40. More specifically, the degree of adhesion between the sealing member 43 and the end 36 of the translucent cover 30, the outer surface 4250 a of the inner periphery of the end cover of the end cover 40, and the inner surface 4190 a of the outer periphery of the end cover is increased. In addition, the translucent cover 30 and the sealing tool 43 are less likely to come off the end cover 40. That is, in the lighting device 3 and the sealing structure 100 of the lighting device 3, there is no possibility that the translucent cover 30 and the sealing device 43 come off from the end cover 40.

  The end cover 40 has the shape described above, and the amount of elastic deformation of the outer peripheral portion 437 of the sealing member 43 is smaller than that of the connection portion 436 on the side where rainwater enters. Since the side of the main part 430 is relatively smaller, the lamp 3 can easily maintain the water stoppage. In addition, the light-transmitting cover 30 and the end cover 40 are strongly adhered to the sealing tool 43, and the lamp 3 is kept water-tight. More specifically, the end portion 36 of the translucent cover 30, the end cover inner peripheral portion outer surface portion 4250a and the end cover outer peripheral portion inner surface portion 4190a of the end cover 40, and the sealing member 43 are strongly adhered to each other. The lamp 3 and the sealing structure 100 of the lamp 3 maintain water stoppage.

  Further, the distance between the outer wall 410a in the second direction and the inner peripheral portion 425 of the end cover in the second direction is such that the distance between the center of the translucent cover 30 which is the outer periphery in the first direction and the distance from the center to the end. It becomes larger toward 36. Therefore, the sealing member 43, which is an elastic member fitted into the end cover 40, does not easily come off. Further, the end portion 36 of the translucent cover 30, the end cover inner peripheral portion outer surface portion 4250a and the end cover outer peripheral portion inner surface portion 4190a of the end cover 40, and the sealing member 43 are strongly adhered to each other. The sealing structure 100 of the lamp 3 maintains water stopping.

  In the end cover 40, the distance between the outer wall portion 410a and the inner peripheral portion 425 of the end cover in the second direction may be the same in the first direction. In this case, the inclination of the end cover outer peripheral inner surface 4190a and the inclination of the end cover inner peripheral outer surface 4250a are at the same angle. This facilitates engagement with the unit cover 40.

(Modification 2)
FIG. 12 is a schematic diagram illustrating a second modification of the sealing structure 100 of the lamp 3 according to the embodiment of the present invention. The lamp 3 of Modification 2 is a modification in which the end cover inner peripheral portion outer surface portion 4250b functions as a first inclined portion, and the end cover outer peripheral portion inner surface portion 4190b functions as a second inclined portion. That is, the end cover inner peripheral portion outer surface portion 4250b is the outer peripheral surface of the end cover inner peripheral portion 425, and forms an inclined surface as the first inclined portion.

  In the first direction (longitudinal direction X), the end cover inner peripheral portion outer surface portion 4250b, which is the first inclined portion, extends from the second cover main portion 420 to the first cover main portion 410 in the first direction (longitudinal direction). X) is inclined so that the distance to the end 36 in the second direction intersecting with X) increases. That is, the distance from the end portion 36 in the second direction to the end portion 36 in the second direction increases as the distance from the center of the translucent cover 30 to the end portion 36 in the first direction increases. An end cover inner peripheral portion outer surface portion 4250b, which is a first inclined portion that is inclined, is formed. In other words, in the first direction (longitudinal direction X), as the end cover inner peripheral portion outer surface portion 4250b moves from the first cover main portion 410 toward the second cover main portion 420 in the first direction (longitudinal direction X), X) is inclined so that the distance from the end portion 36 in the second direction intersecting with X) becomes small. That is, the distance from the end 36 of the light-transmitting cover 30 toward the center in the first direction is reduced with respect to the end cover inner peripheral portion 425 that is the inner wall. An end cover inner peripheral portion outer surface portion 4250b, which is a first inclined portion that is inclined, is formed. The inclination angle θ2 of the outer peripheral portion 4250b of the inner peripheral portion of the end cover is such that the inclination angle θ2> 0 ° with respect to the reference line T along the longitudinal direction X.

  Further, the inner surface 4190b of the outer peripheral portion of the end cover forms an inclined surface as a second inclined portion corresponding to the first inclined portion. In the first direction (longitudinal direction X), the end cover outer peripheral portion inner surface portion 4190b intersects with the first direction (longitudinal direction X) from the first cover main portion 410 toward the second cover main portion 420. It is inclined so that the distance from the end 36 is reduced in two directions. That is, the outer wall portion 410a is a second inclined portion that is inclined so that the distance from the end portion 36 of the translucent cover 30 toward the center in the first direction becomes smaller in the second direction. An end cover outer peripheral inner surface portion 4190b is formed. In other words, the inner surface 4190b of the outer peripheral portion of the end cover, which is the second inclined portion, moves in the first direction (longitudinal direction X) from the second main cover portion 420 toward the first main cover portion 410 in the first direction. It is inclined so that the distance from the end 36 increases in the second direction intersecting. That is, the outer wall portion 410a is a second inclined portion that is inclined so that the distance from the center of the translucent cover 30 to the end portion 36 in the first direction increases with the distance to the end portion 36 in the second direction. An end cover outer peripheral inner surface portion 4190b is formed. The inclination angle θ4 of the inner peripheral portion 4190b of the outer peripheral portion of the end cover is such that the inclination angle θ4> 0 ° with respect to the reference line T along the longitudinal direction X.

  As described above, the sealing member 43, which is an elastic member, includes the end portion 36, the first cover main portion 410, which is the outer end portion, the outer wall portion 410a, and the end cover inner peripheral portion 425, which is the inner wall portion. It is attached to the end 36 in a sandwiched state. The end cover inner peripheral portion 425, which is an inner wall portion, is configured such that the distance from the center of the light-transmitting cover 30 to the end portion 36 in the first direction increases as the distance from the end portion 36 in the second direction increases. An end cover inner peripheral portion outer surface portion 4250b, which is a first inclined portion that is inclined, is formed. The sealing member 43 as an elastic member is sandwiched between the end portion 36 and the first cover main portion 410 as the outer end portion, the outer wall portion 410a, and the end cover inner peripheral portion 425 as the inner wall portion. It is attached to the end 36 in a state. The outer wall portion 410a has an end portion that is a second inclined portion that is inclined such that a distance from the center 36 of the light-transmitting cover 30 to the end portion 36 in the first direction increases with respect to the end portion 36 in the second direction. An outer peripheral portion inner surface portion 4190b is formed. Therefore, as described above, the degree of adhesion between the translucent cover 30 and the end cover 40 and the sealing tool 43 is increased, and the translucent cover 30 and the sealing tool 43 are unlikely to come off the end cover 40. Become. More specifically, the degree of adhesion between the sealing member 43 and the end portion 36 of the translucent cover 30, the inner peripheral portion outer surface portion 4250 b of the end cover of the end cover 40, and the outer peripheral portion inner surface portion 4190 b of the end cover increases. In addition, the translucent cover 30 and the sealing tool 43 are less likely to come off the end cover 40. That is, there is no possibility that the light-transmitting cover 30 and the sealing tool 43 come off from the end cover 40. Further, the end portion 36 of the translucent cover 30, the inner peripheral portion outer surface portion 4250 b of the end cover of the end cover 40, and the outer peripheral portion inner surface portion 4190 b of the end cover are strongly adhered to the sealing member 43, and the lamp 3 and The sealing structure 100 of the lamp 3 maintains water stopping.

(Modification 3)
FIG. 13 is a schematic diagram illustrating a third modification of the sealing structure 100 of the lamp 3 according to the embodiment of the present invention. The lamp 3 of the third modification is a modification using the end cover 40c in which the first end cover 41 and the second end cover 42 are integrally formed. The end cover 40c is formed as one component. The end cover inner peripheral portion outer surface portion 4250c is an outer peripheral surface of the end cover inner peripheral portion 425, and forms an inclined surface as a first inclined portion.

  The end cover inner peripheral portion outer surface portion 4250c, which is the first inclined portion, moves in the first direction (longitudinal direction X) from the second cover main portion 420 toward the first cover main portion 410 in the first direction (longitudinal direction). X) is inclined so that the distance to the end 36 in the second direction intersecting with X) increases. That is, the distance from the end portion 36 in the second direction to the end portion 36 in the second direction increases as the distance from the center of the translucent cover 30 to the end portion 36 in the first direction increases. An end cover inner peripheral portion outer surface portion 4250c, which is a first inclined portion that is inclined, is formed. In other words, in the first direction (longitudinal direction X), as the end cover inner peripheral portion outer surface portion 4250c moves from the first cover main portion 410 toward the second cover main portion 420, the first direction (longitudinal direction) increases. X) is inclined so that the distance from the end portion 36 in the second direction intersecting with X) becomes small. That is, the distance from the end 36 of the light-transmitting cover 30 toward the center in the first direction is reduced with respect to the end cover inner peripheral portion 425 that is the inner wall. An end cover inner peripheral portion outer surface portion 4250c, which is a first inclined portion that is inclined, is formed. The inclination angle θ2 of the end cover inner peripheral portion outer surface portion 4250c with respect to a reference line T along the longitudinal direction X is an inclination angle θ2> 0 °.

  The inner surface 4190c of the outer peripheral portion of the end cover forms an inclined surface as a second inclined portion corresponding to the first inclined portion. The end cover outer peripheral portion inner surface portion 4190c intersects the first direction (longitudinal direction X) from the first cover main portion 410 toward the second cover main portion 420 in the first direction (longitudinal direction X). It is inclined so that the distance from the end 36 is reduced in two directions. That is, the outer wall portion 410a is a second inclined portion that is inclined so that the distance from the end portion 36 of the translucent cover 30 toward the center in the first direction becomes smaller in the second direction. An end cover outer peripheral portion inner surface portion 4190c is formed. In other words, in the first direction (longitudinal direction X), the end cover outer peripheral portion inner surface portion 4190c, which is the second inclined portion, moves in the first direction from the second cover main portion 420 toward the first cover main portion 410 in the first direction. It is inclined so that the distance from the end 36 increases in the second direction intersecting. That is, the outer wall portion 410a is a second inclined portion that is inclined so that the distance from the center of the translucent cover 30 to the end portion 36 in the first direction increases with the distance to the end portion 36 in the second direction. An end cover outer peripheral portion inner surface portion 4190c is formed. The inclination angle θ4 of the inner peripheral portion 4190c of the outer peripheral portion of the end cover is such that the inclination angle θ4> 0 ° with respect to the reference line T along the longitudinal direction X.

  As described above, the end cover 40c is formed as one component. The end cover 40c has an end cover inner peripheral outer surface 4250c as a first inclined portion and an end cover outer peripheral inner surface 4190c as a second inclined portion. Therefore, as described above, the degree of adhesion between the light-transmitting cover 30 and the end cover 40c and the sealing tool 43 is increased, and the light-transmitting cover 30 and the sealing tool 43 are unlikely to come off from the end cover 40c. Become. Further, the end portion 36 of the translucent cover 30, the end cover inner peripheral portion outer surface portion 4250c and the end cover outer peripheral portion inner surface portion 4190c of the end cover 40c, and the sealing member 43 are strongly adhered to each other. Water stoppage is maintained. Further, the end cover 40c in which a plurality of components are integrated can reduce the number of components constituting the end cover 40c, and can reduce the number of steps of the assembling work of the lamp 3.

  As shown in the sealing structure 100 and the first to third modifications, the lamp 3 and the sealing structure 100 include the first wall at least one of the outer wall portion 410a and the end cover inner peripheral portion 425 serving as the inner wall portion. An inclined portion composed of an inclined portion or a second inclined portion is formed. That is, the inclined portion is formed on at least one of the outer wall portion 410a and the end cover inner peripheral portion 425 which is the inner wall portion. Then, in the first direction, which is the longitudinal direction X of the lamp 3, the distance between the inclined portion and the end portion 36 in the second direction increases from the center of the translucent cover 30 which is the outer periphery toward the end portion 36. To be inclined. Therefore, as described above, in the lamp 3 and the sealing structure 100 of the lamp 3, the degree of adhesion between the light-transmitting cover 30 and the end cover 40 and the sealing member 43 is increased, and the light-transmitting cover 30 and the sealing The stopper 43 does not easily come off the end cover 40. Further, the end portion 36 of the translucent cover 30, the end cover inner peripheral portion outer surface portion 4250c and the end cover outer peripheral portion inner surface portion 4190c of the end cover 40, and the sealing member 43 are strongly adhered to each other. The sealing structure 100 of the lamp 3 maintains water stopping.

(Modification 4)
FIG. 14 is a schematic diagram illustrating a fourth modification of the sealing structure 100 of the lamp 3 according to the embodiment of the present invention. In the lamp 3 of the fourth modification, an inner peripheral portion inner surface protruding portion 4351 is formed on the inner peripheral portion inner surface portion 4350 of the inner peripheral portion 435. The inner peripheral portion 4350 has an inner peripheral portion 435 facing the end cover inner peripheral portion 425 which is an inner wall portion in a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. Of the wall. The inner peripheral portion inner surface protruding portion 4351 is a convex portion formed on the inner peripheral portion inner surface portion 4350 of the inner peripheral portion 435. Note that the convex portion is a portion that protrudes from the wall portion. The inner peripheral portion inner surface protruding portion 4351 is formed in an annular shape along the inner peripheral portion inner surface portion 4350 of the inner peripheral portion 435. The inner peripheral portion inner surface protruding portion 4351 may be formed on the inner peripheral portion inner surface portion 4350 of the inner peripheral portion 435 in the longitudinal direction X of the lamp 3, or may be formed in plural. The lamp 3 is made thinner while maintaining the waterproofness (adhesion) of the sealing tool 43 by forming the inner circumferential inner surface protruding portion 4351 on the inner circumferential surface 4350 of the inner circumferential portion 435. be able to. As a result, the lamp 3 and the sealing structure 100 of the lamp 3 can be reduced in material and cost.

  In the lamp 3 of the fourth modification, an inner peripheral portion outer surface protruding portion 4353 is formed on the inner peripheral portion outer surface portion 4352 of the inner peripheral portion 435. The inner peripheral portion outer surface portion 4352 is formed on the inner peripheral portion 435 facing the end portion 36 of the light transmitting cover 30 in a state where the light transmitting cover 30, the sealing tool 43, and the end cover 40 are combined. The wall. The inner peripheral portion outer projecting portion 4353 is a convex portion formed on the inner peripheral portion outer surface portion 4352 of the inner peripheral portion 435. The inner peripheral portion outer surface protruding portion 4353 is formed in an annular shape along the inner peripheral portion outer surface portion 4352 of the inner peripheral portion 435. The inner peripheral portion outer surface protruding portion 4353 may be formed on the inner peripheral portion outer surface portion 4352 of the inner peripheral portion 435 in the longitudinal direction X of the lamp 3, or may be formed in plural. Since the lamp 3 has the inner peripheral portion outer surface protruding portion 4353 formed on the inner peripheral portion outer surface portion 4352 of the inner peripheral portion 435, the thickness of the lamp 3 can be reduced while maintaining the waterproofness (adhesion) of the sealing member 43. Can be planned. As a result, the lamp 3 and the sealing structure 100 of the lamp 3 can be reduced in material and cost.

  In the lamp 3 of the fourth modification, the outer peripheral portion inner surface protruding portion 4371 is formed on the outer peripheral portion inner surface portion 4370 of the outer peripheral portion 437. The outer peripheral portion inner surface portion 4370 is formed by the wall surface portion of the outer peripheral portion 437 facing the end portion 36 of the translucent cover 30 in a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. is there. The outer peripheral portion inner surface protruding portion 4371 is a convex portion formed on the outer peripheral portion inner surface portion 4370 of the outer peripheral portion 437. The outer peripheral portion inner surface protruding portion 4371 is formed in an annular shape along the outer peripheral portion inner surface portion 4370 of the outer peripheral portion 437. The outer peripheral portion inner surface protruding portion 4371 may be formed on the outer peripheral portion inner surface portion 4370 of the outer peripheral portion 437 in the longitudinal direction X of the lamp 3, or may be formed in plural. The lamp 3 can be made thinner while the watertightness (adhesion) of the sealing tool 43 is maintained by forming the outer circumferential inner surface protruding portion 4371 on the outer circumferential inner surface 4370 of the outer circumferential portion 437. . As a result, the lamp 3 and the sealing structure 100 of the lamp 3 can be reduced in material and cost.

  In the lamp 3 of the fourth modification, the outer peripheral portion outer projection 4373 of the outer peripheral portion 437 of the outer peripheral portion 437 is formed. The outer peripheral portion 4372 is a wall portion of the outer peripheral portion 437 facing the outer wall portion 410a in a state where the translucent cover 30, the sealing tool 43, and the end cover 40 are combined. The outer peripheral portion projecting portion 4373 is a convex portion formed on the outer peripheral portion 4372 of the outer peripheral portion 437. The outer peripheral portion projecting portion 4373 is formed in an annular shape along the outer peripheral portion 4372 of the outer peripheral portion 437. One or more outer peripheral projecting portions 4373 may be formed on the outer peripheral portion 4372 of the outer peripheral portion 437 in the longitudinal direction X of the lamp 3. Since the outer peripheral portion 4373 of the outer peripheral portion 437 is formed with the outer peripheral projecting portion 4373 of the outer peripheral portion 437, the lamp 3 can be made thinner while maintaining the waterproofness (adhesion) of the sealing device 43. it can. As a result, the lamp 3 and the sealing structure 100 of the lamp 3 can be reduced in material and cost.

  In the lamp 3 of the fourth modification, any one of the inner peripheral portion inner projecting portion 4351, the inner peripheral portion outer surface projecting portion 4353, the outer peripheral portion inner surface projecting portion 4371, and the outer peripheral portion outer projecting portion 4373 is formed. Or two or more may be formed.

  As described above, since the lighting device 1 includes the lamp 3 or the sealing structure 100 of the lamp 3, the above-described effects of the lamp 3 or the sealing structure 100 of the lamp 3 can be obtained.

  FIG. 15 is a cross-sectional view showing a reference arrangement of the elastic structure 110 according to the embodiment of the present invention. FIG. 16 is a cross-sectional view showing the arrangement of the translucent cover 30 in the extended state in the elastic structure 110 according to the embodiment of the present invention. FIG. 17 is a cross-sectional view showing the arrangement of the translucent cover 30 in the contracted state in the elastic structure 110 according to the embodiment of the present invention. The extendable structure 110 is provided in the lamp 3 so that the end 36 and the end cover 40, which are the fitting portions of the translucent cover 30, are free ends whose movement in the longitudinal direction X (first direction) is not restricted. Part.

  The telescopic structure 110 includes a light-transmitting cover 30 serving as an outer shell, and an end cover 40 that is an end cover attached to the light-transmitting cover 30. The elastic structure 110 is disposed outside the end cover 40 in the first direction, which is the longitudinal direction X, and is partially fixed to the mounting member 50 that passes through the end cover 40 that is the end cover. In addition, a connecting member 44 is provided, the other part of which is fixed to the lighting fixture 2. The telescopic structure 110 allows the end 36 and the end cover 40 to move freely along the first direction which is the longitudinal direction X in the movable range M provided between the mounting member 50 and the connecting member 44. Is formed. The elastic structure 110 is attached to the end 36 in a state where the end cover 40 is in close contact with the sealing member 43 which is an elastic member disposed between the end 36 and the elastic member. ing. Further, the telescopic structure 110 has the fixing tool 54 to which the attaching member 50 penetrates the end cover 40 which is an end cover and to which the connecting member 44 is fixed. Then, the expansion / contraction structure 110 moves in a state where the sealing member 43 as an elastic member is in close contact with the fixing member 54. The movable range M of the lamp 3 and the extendable structure 110 of the lamp 3 shown in FIG. 15 corresponds to the amount of movement of the end cover 40 that moves together with the end 36 in accordance with the change in the operating environment of the lamp 3 and the mounting member. The clearance is provided between 50 and the connecting member 44. The movable range M, which is a clearance, also has a function of absorbing a dimensional error due to a manufacturing variation of each part or an assembly variation of the lamp 3. In the telescopic structure 110, the end 36 is movable along the first direction that is the longitudinal direction X together with the end cover 40 in the movable range M of the lamp 3 provided between the mounting member 50 and the connecting member 44. Free end. As described above, the end cover 40, which is an end cover, is attached to the end 36 in a state in which the end cover 40 is in close contact with the sealing tool 43 disposed between the end 36 and the end 43. Therefore, the sealing member 43, which is an elastic member, moves in the movable range M along the end cover 40 along the first direction which is the longitudinal direction X.

  As shown in FIG. 15, as the placement reference 1, the end cover 40 is placed in the movable range M of the lamp 3 in a state where the end cover 40 is separated from the mounting member 50 and the connecting member 44 under the reference installation environment condition based on the reference temperature and the reference humidity. Are located. As shown in FIG. 15, under the reference installation environment condition, in the longitudinal direction X of the lamp 3, the end cover 40 has a range (first movable range M1) that can move to the position P2 based on the position P1. The end cover 40, the sealing tool 43, and the light-transmitting cover 30 are arranged in the first place. The reference installation environment condition is an environment condition based on a normal temperature (for example, 25 ° C.) as a reference temperature and a normal humidity (for example, a relative humidity of 40% to 50%) as a reference humidity, and is a general environment when assembling the lamp 3. It is also a condition. As shown in FIG. 15, the position P <b> 1 is the installation position of the first cover main part 410 of the end cover 40 in the longitudinal direction X of the lamp 3, and more specifically, the position P <b> 1 in the longitudinal direction X of the lamp 3. This is the installation position of the surface of the cover main portion 410 facing the fixing portion 46 of the connecting member 44. The position P2 is a setting position of the fixing portion 46 of the connecting member 44 in the longitudinal direction X of the lamp 3, and more specifically, the first cover main portion 410 of the fixing portion 46 in the longitudinal direction X of the lamp 3. This is the installation position of the surface facing the wall surface to be configured. That is, the end cover 40 is arranged in the movable range M in a state where it is separated from the fixing portion 46 of the connecting member 44. Further, since the sealing member 43 is sandwiched between the end cover 40 and the mounting member 50, the end cover 40 is not in direct contact with the mounting member 50 but is separated therefrom.

  The first movable range M1 is a space formed between the installation position of the first cover main portion 410 of the end cover 40 and the installation position of the fixing portion 46 of the connecting member 44 in the longitudinal direction X of the lamp 3. The distance between the installation position of the first cover main portion 410 and the installation position of the fixing portion 46. The first movable area M1 is an area for coping with the movement of the end portion 36 and the end cover 40 accompanying the extension of the translucent cover 30. The size of the first movable range M1 is determined, for example, in a range from the maximum extension dimension G of the translucent cover 30 to a half value (G / 2) of the maximum extension dimension G. When the elastic structure 110 is provided only at one end in the longitudinal direction X (first direction) of the lamp 3, the first movable range M <b> 1 is preferably set to the maximum extension dimension G of the translucent cover 30. When the elastic structure 110 is provided at both ends in the longitudinal direction X (first direction) of the lamp 3, the first movable range M <b> 1 is set to a half value (G / 2) of the maximum extension dimension G of the translucent cover 30. It is.

  As shown in FIG. 15, the end cover 40 is illuminated such that the distance between the connecting member 44 and the mounting member 50 is larger than the distance between the mounting member 50 and the reference member under the reference installation environment conditions based on the reference temperature and the reference humidity. 3 in the movable range M. More specifically, in the standard installation environment conditions based on the reference temperature and the reference humidity, the end cover 40 has a smaller distance between the fixing member 46 of the connecting member 44 than the distance between the fixing member 54 of the mounting member 50. Are arranged in the movable range M of the lamp 3 so as to be larger. At this time, the end cover 40 is arranged close to the mounting member 50 with the sealing tool 43 therebetween.

  The end cover 40 may be arranged in the movable range such that the distance between the end cover 40 and the attachment member 50 is larger than the distance between the connection member 44 and the reference member under the reference installation environment condition based on the reference temperature and the reference humidity. . More specifically, in the standard installation environment conditions based on the reference temperature and the reference humidity, the end cover 40 has a smaller distance between the fixing member 54 of the mounting member 50 than the distance between the fixing member 46 of the connecting member 44. May be arranged in the movable range M of the lamp 3 so as to be larger. For example, this is an example of the arrangement of the end cover 40 on the assumption that the amount of shrinkage of the translucent cover 30 is large, such as when the use environment temperature of the lamp 3 is extremely low.

  The attachment member 50 has a fixture 54 that penetrates through the end cover 40 and to which the connecting member 44 is fixed. The sealing member 43, which is an elastic member, moves in close contact with the fixture 54. As described above, the connecting member 44 is fixed to the boss portion 57 of the fixture 54. The boss portion 57 of the fixing tool 54 slides inside the boss insertion hole of the sealing tool tubular portion 433 in a state of being in close contact with the sealing tool tubular portion 433 which is the tubular portion of the sealing tool 43. can do. The sealing tool 43 is an elastic member, and by having the above-described configuration, it is possible to configure the elastic structure 110 that maintains the water stoppage of the lamp 3.

  When the installation environment temperature, the installation environment relative humidity, or the operating temperature of the lamp 3 rises and the translucent cover 30 extends, the end cover 40 and the end 36 of the translucent cover 30 are positioned relative to each other. Move outward (in the direction of X1) in the longitudinal direction X without change. When the end cover 40 and the end 36 of the translucent cover 30 move, the sealing tool 43 is in close contact with the end cover 40, the end 36 of the translucent cover 30, and the boss 57, and the lamp 3 Is maintained (watertightness).

  As shown in FIG. 15, as the placement reference 2, under the reference installation environment condition, the end is set such that the translucent cover 30 has a range (second movable range M2) that can move to the position P4 with reference to the position P3. The unit cover 40, the sealing tool 43, and the translucent cover 30 are arranged. The position P3 is the position of the cover end 35 of the translucent cover 30, and the position P4 is the position of the fixture 54 of the mounting member 50. That is, the second movable range M2 is a distance between the cover end 35 and the fixture 54 in the longitudinal direction X of the lamp 3. The second movable range M2 is a region for coping with the movement of the end 36 and the end cover 40 accompanying the contraction of the translucent cover 30. The second movable range M2 is determined, for example, in a range from the maximum contraction dimension S of the translucent cover 30 to a half value (S / 2) of the maximum contraction dimension S. When the elastic structure 110 is provided only at one end in the longitudinal direction X (first direction) of the lamp 3, the second movable range M2 is preferably set to the maximum contraction dimension S. When the elastic structure 110 is provided at both ends in the longitudinal direction X (first direction) of the lamp 3, the second movable range M2 is sufficient to be a half value (S / 2) of the maximum contraction dimension S.

  As shown in FIG. 16, the end cover 40 can move to the position P2 in the first movable range M1 with reference to the position P1 shown in FIG. 15. The cover 40 can be moved from the position P1 to the position P2 by the movement distance. As shown in FIG. 16, when the light-transmitting cover 30 is extended to the maximum, that is, when the light-transmitting cover 30 is extended to the maximum within the range of the first movable range M <b> 1, the lighting device 3 is The maximum dimension in the direction X (first direction) is not exceeded. When the translucent cover 30 does not exceed the maximum dimension in the longitudinal direction X of the luminaire 2 in a state where the translucent cover 30 is maximally extended within the range of the first movable range M1, the luminaire 1 is brought close to the longitudinal direction. Even when the lighting devices 1 are installed, the lamps 3 of the lighting devices 1 do not collide with each other. A third movable range M3 shown in FIG. 16 is a range of movement of the end cover 40 and the sealing tool 43 to a position P6 based on the position P5. The position P5 is the position of the second cover main part 420 of the second end cover 42, and the position P6 is the position of the fixing tool 54 of the mounting member 50. That is, the third movable range M3 is a distance between the second cover main part 420 and the fixture 54 in the longitudinal direction X of the lamp 3. The third movable range M3 is a movable range when the translucent cover 30 contracts (returns) to the reference size from the state where the light-transmitting cover 30 is maximally extended, and is substantially the same as the first movable range M1.

  As shown in FIG. 15, a gap is formed between the head of the connection screw 48 and the cylindrical wall of the connection guide 413 under the standard installation environment conditions. Therefore, as shown in FIG. 16, even if the end cover 40 moves in the longitudinal direction X along with the extension of the end 36, the connecting screw 48 does not interfere with the cylindrical wall of the connecting guide 413. . As a result, the connection screw 48 does not hinder the movement of the end cover 40 on which the connection guide 413 is formed.

  FIG. 17 is an example of an arrangement of the end cover 40, the sealing tool 43, and the light-transmitting cover 30 in a state where the light-transmitting cover 30 is contracted within the range of the second movable range M2. As shown in FIG. 17, when the translucent cover 30 contracts, for example, the end 36 of the translucent cover 30 may move as shown in a position P7.

  As described above, the lamp 3 includes the end cover 40 that is the end cover attached to the translucent cover 30 that is the outer shell while covering the end 36 that forms the opening. The lamp 3 is disposed outside the end cover 40 in the first direction, which is the longitudinal direction X of the lamp 3, and is partially fixed to the mounting member 50 penetrating the end cover 40. In addition, a connecting member 44 is provided, the other part of which is fixed to the lighting fixture 2. The end 36 is movable along the first direction. Therefore, it is not necessary to form a hole for fixing the lamp 3 in the translucent cover 30 which is the outer shell, and the end 36 of the translucent cover 30 is moved while maintaining the water blocking property of the translucent cover 30. It can be formed freely. As a result, the lamp 3 and the expansion and contraction structure 110 of the lamp 3 can expand and contract while maintaining the water stoppage. In addition, since the lamp 3 and the telescopic structure 110 of the lamp 3 do not have a hole for fixing the lamp 3 in the translucent cover 30, it is possible to avoid adopting a method such as a waterproof washer that leads to an increase in cost. it can.

  The end 36 is formed to be movable in the first direction together with the end cover 40 as an end cover in accordance with expansion and contraction of the translucent cover 30 as an outer shell. As a result, the lamp 3 can expand and contract while maintaining the water stopping property.

  Further, the end portion 36 is formed together with the end cover 40 as an end cover along with the expansion and contraction of the translucent cover 30 in the movable range M formed between the mounting member 50 and the connecting member 44. It is movable along one direction. As a result, the lamp 3 can expand and contract while maintaining the water stopping property.

  The end cover 40, which is an end cover, is disposed in the movable range M in a state where the end cover 40 is separated from the mounting member 50 and the connecting member 44 under standard installation environment conditions based on the reference temperature and the reference humidity. Therefore, even if the translucent cover 30 expands and contracts due to a change in environmental conditions, the lamp 3 has an area in which the end 36 of the translucent cover 30 and the end cover 40 to which the translucent cover 30 is attached move. Is secured, and the movement of the end 36 and the end cover 40 is not hindered.

  The end cover 40, which is an end cover, is movable such that the distance between the connecting member 44 and the mounting member 50 is larger than the distance between the mounting member 50 and the reference installation environment conditions based on the reference temperature and the reference humidity. It is arranged in the area M. For this reason, even if the amount of extension of the translucent cover 30 is large due to a change in environmental conditions, for example, when the use environment temperature is extremely high, the area where the end 36 and the end cover 40 move is in the lamp 3. As a result, the movement of the end 36 and the end cover 40 is not hindered. Further, since the lamp 3 has the movable range M, it is possible to absorb a dimensional error due to a manufacturing variation of each component or an assembly variation of the lamp 3.

  The end cover 40, which is an end cover, is movable such that the distance between the mounting member 50 and the connecting member 44 is larger than the distance between the connecting member 44 and the reference member under the standard installation environment conditions based on the reference temperature and the reference humidity. It is arranged in the area M. For this reason, even if the amount of shrinkage of the translucent cover 30 is large due to a change in environmental conditions, for example, when the use environment temperature is extremely low, the region where the end 36 and the end cover 40 move is in the lamp 3. As a result, the movement of the end 36 and the end cover 40 is not hindered.

  The end cover 40 serving as an end cover is attached to the end 36 in a state in which the end cover 40 is in close contact with the sealing member 43 which is an elastic member interposed between the end 36 and the end cover 36. . As a result, the lamp 3 can expand and contract while further maintaining the water stoppage.

  Further, the mounting member 50 has a fixing tool 54 which penetrates the end cover 40 which is an end cover and to which the connecting member 44 is fixed. Move in close contact. As a result, the lamp 3 and the expansion / contraction structure 110 of the lamp 3 can expand and contract while maintaining the water stoppage.

  As described above, the illumination device 1 includes the lamp 3 or the extendable structure 110 of the lamp 3, so that the above-described effect of the lamp 3 or the extendable structure 110 of the lamp 3 can be obtained.

  Note that the lamp 3 in the present embodiment and the modified example may be one in which the end cover 40 and the seal 43 are attached to any one end in the longitudinal direction X. Further, the lighting device 1 in the present embodiment and the modified example has been described by exemplifying a so-called trough-type lighting device 2, but the present invention is not limited to this, and the lighting device 1 is provided with the lighting device 3. Lighting fixtures 2 having other shapes such as a so-called shaded type, a one-sided reflective shaded type, and a V-shaped type can be adopted. Further, in the present embodiment and the modified examples, the lighting device 2 and the lamp 3 constituting the lighting device 1 are all illustrated as being long, but are not limited thereto, and the lamp 3 is not limited thereto. Alternatively, the lighting fixture 2 to which the lamp 3 is attached may be a short one. For example, the lamp 3 may have a shape in which the length of the translucent cover 30 in the cylinder axis direction is smaller than the length in the radial direction. Good.

  As described above, the embodiments and the modifications of the present invention have been described. However, the embodiments and the modifications may be combined and implemented. Alternatively, one of these embodiments and modifications may be partially implemented. Alternatively, the embodiments and the modified examples may be partially combined. Note that the present invention is not limited to these embodiments and modifications, and various modifications can be made as necessary.

  DESCRIPTION OF SYMBOLS 1 Lighting device, 2 lighting fixtures, 3 lighting fixtures, 3A end, 3B end, 9 construction part, 20 equipment main body, 21 equipment bottom part, 22 equipment side part, 23 equipment end, 24 knockout, 25 mounting part, 26 Open end, 27 connecting part, 28 screw hole, 30 translucent cover, 31 parallel part, 32 first connecting part, 33 second connecting part, 34 rib, 35 cover end, 36 end, 37 outer periphery, 38 inner peripheral portion, 40 end cover, 40c end cover, 41 first end cover, 42 second end cover, 42a second end cover, 43 sealing member, 43a sealing member, 44 connecting member, 45 connecting portion, 46 fixing portion, 47 engaging portion, 48 connecting screw, 49 cover lid, 50 mounting member, 51 pedestal, 52 mounting surface portion, 53 side portion, 54 fixing tool, 55 mounting portion, 56 fixing portion, 57 boss Department 58 screw hole, 60 light emitting section, 61 light emitting element, 62 substrate, 70 substrate capturing member, 75 fixing screw, 80 control section, 81 power line, 82 ground line, 83 control line, 84 power supply line, 100 sealing structure, 110 Telescopic structure, 410 first cover main part, 410a outer wall part, 411 first cover through hole, 412 first cover connection hole, 413 connection guide, 414 cover lower surface part, 415 cover lower surface through hole, 416 cover electric wire holding part, 417 Cover end face part, 418 cover end face through hole, 419 end cover outer peripheral part, 420 second cover main part, 421 end cover insertion part, 421a insertion wall, 422 second cover engagement piece, 423 second cover engagement claw , 425 inner peripheral portion of end cover, 426 cover flange portion, 430 main part of sealer, 431 wire insertion portion, 432 wire insertion hole, 4 33 sealer tubular portion, 434 screw insertion hole, 435 inner peripheral portion, 436 connecting portion, 437 outer peripheral portion, 450 step portion, 451 connecting screw inserting portion, 460 fixing screw inserting hole, 461 engaging piece inserting hole, 470 Wire insertion hole, 472 insertion hole, 480 retaining washer, 481 shaft portion, 520 screw hole, 521 notch portion, 522 mounting hole, 701 catching portion, 702 engaging portion, 4190 end cover outer peripheral inner surface portion, 4190a end portion Inner surface portion of outer peripheral portion of cover 4190b Inner surface portion of outer peripheral portion of end cover 4190c Inner surface portion of outer peripheral portion of end cover 4250a Outer surface of inner peripheral portion of end cover 4250a Outer surface of inner peripheral portion of end cover 4250b Outer surface of inner peripheral portion of end cover , 4250c End cover inner peripheral portion outer surface portion, 4350 inner peripheral portion inner surface portion, 4351 inner peripheral portion inner surface protruding portion, 4352 inner peripheral portion Outer surface portion, 4353 inner peripheral portion outer surface protruding portion, 4370 outer peripheral portion inner surface portion, 4371 outer peripheral portion inner surface protruding portion, 4372 outer peripheral portion outer surface portion, 4373 outer peripheral portion outer surface protruding portion, 4710 upper slit, 4711 end slit.

Claims (11)

A lamp that constitutes a lighting device by being attached to a lighting device,
An outer shell that covers a light emitting surface of the light emitting element disposed on the mounting member and has an opening formed at an end in a first direction along the longitudinal direction of the mounting member;
An end cover attached to the outer shell while covering the end forming the opening;
A connecting member that is arranged outside the end cover in the first direction, a part of which is fixed to the mounting member that passes through the end cover, and another part of which is fixed to the lighting fixture; When,
With
A lamp in which the end is movable along the first direction. The end,
The lamp according to claim 1, wherein the lamp is movable along the first direction together with the end cover as the outer shell expands and contracts. The end,
The movable part formed between the attachment member and the connecting member, and is movable along the first direction together with the end cover according to expansion and contraction of the outer shell. Lights. The end cover,
Under the standard installation environment conditions based on the standard temperature and standard humidity,
The lamp according to claim 3, wherein the lamp is arranged in the movable range while being separated from the mounting member and the connecting member. The end cover,
Under the standard installation environment conditions based on the standard temperature and standard humidity,
The lamp according to claim 3 or 4, wherein the lamp is disposed in the movable range such that a distance between the connecting member and the mounting member is larger than a distance between the connecting member and the mounting member. The end cover,
Under the standard installation environment conditions based on the standard temperature and standard humidity,
The lamp according to claim 3 or 4, wherein the lamp is arranged in the movable range such that a distance between the mounting member and the connecting member is larger than a distance between the connecting member and the mounting member. The end cover,
The lamp according to any one of claims 1 to 6, wherein the lamp is attached to an elastic member interposed between the end and the end in a state in which the elastic member is in close contact with the end. The mounting member,
It has a fixture that penetrates the end cover and the connection member is fixed,
The elastic member,
The lamp according to claim 7, wherein the lamp moves while being in close contact with the fixture. A telescopic structure of a lamp that constitutes a lighting device by being attached to a lighting device,
An outer shell that covers a light emitting surface of the light emitting element disposed on the mounting member and has an opening formed at an end in a first direction along the longitudinal direction of the mounting member;
An end cover attached to the outer shell while covering the end forming the opening;
A connecting member that is arranged outside the end cover in the first direction, a part of which is fixed to the mounting member that passes through the end cover, and another part of which is fixed to the lighting fixture; When,
The end portion and the end cover,
An extendable structure of a lamp that is movable along the first direction in a movable range provided between the mounting member and the connecting member. The end cover,
An elastic member interposed between the end and the elastic member is attached to the end in a state of being in close contact with the end,
The mounting member,
It has a fixture that penetrates the end cover and the connection member is fixed,
The elastic member,
The telescopic structure of the lamp according to claim 9, wherein the lamp moves while being in close contact with the fixture.   A lighting device comprising the lamp according to any one of claims 1 to 8, or an extendable structure of the lamp according to claim 9 or 10.

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