WO2015049748A1 - Lampe d'affichage de signal - Google Patents

Lampe d'affichage de signal Download PDF

Info

Publication number
WO2015049748A1
WO2015049748A1 PCT/JP2013/076877 JP2013076877W WO2015049748A1 WO 2015049748 A1 WO2015049748 A1 WO 2015049748A1 JP 2013076877 W JP2013076877 W JP 2013076877W WO 2015049748 A1 WO2015049748 A1 WO 2015049748A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens unit
axial direction
lens
insertion space
led mounting
Prior art date
Application number
PCT/JP2013/076877
Other languages
English (en)
Japanese (ja)
Inventor
大輔 重松
Original Assignee
株式会社パトライト
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社パトライト filed Critical 株式会社パトライト
Priority to JP2015540309A priority Critical patent/JP6016043B2/ja
Priority to PCT/JP2013/076877 priority patent/WO2015049748A1/fr
Publication of WO2015049748A1 publication Critical patent/WO2015049748A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • This invention relates to a signal indicator lamp.
  • the optical display device proposed in Patent Document 1 below includes a light emitting diode substrate and a case for housing the substrate.
  • a plurality of light source portions made of LEDs are disposed on the substrate.
  • the case includes a bottomed cylindrical base portion and three covers having a translucent cylindrical shape. These covers are stacked and connected to the base portion in three stages.
  • Each cover has a ring-shaped top wall on the inner peripheral side, and the top wall has a pair of protruding portions facing each other. Slits are formed at the tip portions facing each other in the pair of overhang portions.
  • the substrate housed in the case is fitted in the respective slits of the pair of overhang portions inside each cover. The light emitted from each light source part of the substrate is emitted to the outside through a cover around the light source part.
  • the illumination device proposed in the following Patent Document 2 includes an elongated rectangular plate-like base material extending over almost the entire length of the illumination device, an elongated rectangular substrate supported on one surface of the base material, and a base material And a substantially cylindrical elongated light guide surrounding the substrate.
  • a plurality of LEDs are mounted on the substrate.
  • the light guide has a light incident part that is recessed toward the center of the light guide in the upper part facing the LED. The light emitted from the LED enters the inside of the light guide from the light entering portion, and is emitted outward from the irradiation region on the lower side of the light guide.
  • the signal indicator lamp can be used in various environments, it is necessary to assume the use in an environment susceptible to vibration.
  • an object of the present invention is to provide a signal indicator lamp capable of stably irradiating light even when there is vibration.
  • the invention according to claim 1 is characterized in that an LED mounting board (2) on which a plurality of sets of LEDs (14) are mounted at a predetermined interval in the longitudinal direction (L), and at least one of the LED mounting boards.
  • the lens unit is used by connecting another lens unit in the same form as that of the lens unit in the axial direction, provided on one end side in the axial direction, and the other end side of the other lens unit to be connected.
  • a pair of insertion space forming members (40) extending along A pair of insertion space forming members that divide the insertion space between the opposing surfaces (40A), and one end (40B) in the axial direction of the pair of insertion space forming members is elastically deformed. It protrudes outward in the axial direction from the one end side abutting end surface, and enters between the other axial end portions (40C) of the pair of insertion space forming members of the other lens units.
  • One end part approaches and the said LED mounting board is clamped from thickness direction (T), It is a signal indicator lamp characterized by the above-mentioned.
  • a plurality of lens units having the same form are coupled in the axial direction (also the longitudinal direction of the LED mounting substrate), and in the insertion space of each lens unit, the LED mounting substrate At least a part is contained (accommodated).
  • the one end side contact end surface is in contact with the other end side of the other lens unit to be connected, and the other end side contact end surface is the other lens unit to be connected. It is in contact with one end side. Therefore, adjacent lens units are connected in a state where the relative position is constant.
  • the insertion space is partitioned between the opposing surfaces of the pair of insertion space forming members extending along the axial direction.
  • one end portion in the axial direction of the pair of insertion space forming members enters between the other end portions in the axial direction of the pair of insertion space forming members of the other connected lens units, thereby elastically deforming.
  • the LED mounting substrate is sandwiched from the thickness direction.
  • this signal indicator lamp when a plurality of lens units are connected in the axial direction, one end portion of the pair of insertion space forming members sandwiches the LED mounting substrate from the thickness direction in each lens unit. Thereby, the relative position of each lens unit and the LED at the corresponding position (the same position in the longitudinal direction) on the LED mounting substrate is stabilized. As a result, in the signal indicator lamp, even if there is vibration, the light from the LED can be stably guided to the lens unit for irradiation.
  • the invention according to claim 2 includes a translucent case portion (10) that houses the plurality of lens units connected in the axial direction, and a base portion (60) that supports the case portion,
  • the case part or the part (11) integrated with the case part has a first support part (53) for supporting one end part (2G) in the longitudinal direction of the connected lens unit or the LED mounting substrate.
  • the base part has a second support part (51) for supporting the other end part (2H) in the longitudinal direction of the LED mounting substrate, and the case part is connected to the base part.
  • one end side in the longitudinal direction of the LED mounting substrate (the lens unit on the one end side or one end portion of the LED mounting substrate) is supported by the first support portion on the case portion side, and the length of the LED mounting substrate is The other end in the direction is supported by the second support portion of the base portion.
  • the case portion is connected to the base portion, the entire plurality of lens units are fixed to the base portion.
  • each of the lens unit and the LED mounting substrate can be held in the signal indicator lamp. Therefore, in the signal indicator lamp, even if there is vibration, the light from the LED can be more stably guided to the lens unit for irradiation.
  • the invention according to claim 3 is the signal indicator lamp according to claim 2, wherein at least a part of the first support part or the second support part includes an elastic member.
  • the elastic member in the first support portion or the second support portion attaches the entire LED mounting substrate and the plurality of lens units to either the first support portion or the second support portion. Rush. Thereby, the whole LED mounting substrate and the plurality of lens units can be held by the first support portion and the second support portion so that rattling does not occur. Therefore, in the signal indicator lamp, even if there is vibration, the light from the LED can be more stably guided to the lens unit for irradiation.
  • the invention according to claim 4 is characterized in that the lens unit includes a reinforcing portion (42) that reinforces the other axial end of the pair of insertion space forming members. It is a signal indicator lamp of a crab.
  • one axial end portion of the pair of insertion space forming members enters between the other axial end portions of the pair of insertion space forming members of the other connected lens units. In doing so, it enters between the other end portions reinforced by the reinforcing portion. Therefore, the one end portions can be reliably elastically deformed and approached, and the LED mounting substrate can be sandwiched from the thickness direction.
  • the invention according to claim 5 is characterized in that the lens unit includes an engaging portion (32A) which is provided on one end side in the axial direction and engages with the other end side of another lens unit to be connected.
  • a signal indicator lamp according to any one of claims 1 to 4.
  • the adjacent lens units can be connected by the engaging portion in a state where the relative position is constant.
  • the invention according to claim 6 is characterized in that the lens unit includes a movement restraining portion (27) for restraining movement of the LED mounting board in each of the short side direction (S) and the thickness direction.
  • Item 6 The signal indicator lamp according to any one of Items 1 to 5.
  • the relative position between each lens unit and the LED at the corresponding position on the LED mounting substrate can be further stabilized by the movement restraining unit. Therefore, in the signal indicator lamp, even if there is vibration, the light from the LED can be more stably guided to the lens unit for irradiation.
  • a seventh aspect of the present invention there is provided a first connection guide portion (32A) provided on one end side of the lens unit in the axial direction and another connected and connected to the other end side of the lens unit in the axial direction.
  • FIG. 1 is a front view of a signal indicator lamp 1 according to an embodiment of the present invention.
  • FIG. 2 is a side center longitudinal sectional view of the signal indicator lamp 1 in the posture of FIG.
  • FIG. 3A is a front view of individual components constituting the signal indicator lamp 1.
  • FIG. 3B is a front view of individual parts (parts not shown in FIG. 3A) constituting the signal indicator lamp 1.
  • FIG. 4A is an exploded perspective view of the signal indicator lamp 1.
  • FIG. 4B is an exploded perspective view of the signal indicator lamp 1 and shows parts not shown in FIG. 4A.
  • FIG. 5A is an exploded perspective view of the signal indicator lamp 1 when viewed from a direction different from FIG. 4A.
  • FIG. 5B is an exploded perspective view of the signal indicator lamp 1 and shows parts not shown in FIG. 5A.
  • FIG. 6 is a perspective view of the lens unit 3 constituting the signal indicator lamp 1.
  • FIG. 7 is a plan view of the lens unit 3.
  • FIG. 8 is a bottom view of the lens unit 3.
  • FIG. 9 is a left side view of the lens unit 3.
  • FIG. 10 is a rear view of the lens unit 3.
  • FIG. 11 is an AA arrow view of FIG.
  • FIG. 12 is a perspective view of a main part of the lens unit 3 partially shown in cross section.
  • FIG. 13 is a perspective view of a main part of the lens unit 3 partially shown in cross section.
  • FIG. 14A is a cross-sectional view of two lens units 3 to be connected.
  • FIG. 14A is a cross-sectional view of two lens units 3 to be connected.
  • FIG. 14B is a cross-sectional view of the three lens units 3 connected to each other.
  • FIG. 15A is a cross-sectional view of two lens units 3 to be connected in the first modification.
  • FIG. 15B is a cross-sectional view of three lens units 3 connected to each other with respect to the first modification.
  • FIG. 16A is a cross-sectional view of two lens units 3 to be connected in the second modification.
  • FIG. 16B is a cross-sectional view of the three lens units 3 connected to each other regarding the second modification.
  • FIG. 17A is a cross-sectional view of two lens units 3 to be connected in the third modification.
  • FIG. 17B is a cross-sectional view of the three lens units 3 connected to each other with respect to the third modification.
  • FIG. 18 is a perspective view of the lens unit 3 in the fourth modification.
  • FIG. 19 is a plan view of the lens unit 3 in the fourth modification.
  • FIG. 1 is a front view of a signal indicator lamp 1 according to an embodiment of the present invention.
  • FIG. 2 is a side center longitudinal sectional view of the signal indicator lamp 1 in the posture of FIG. 3A and 3B are front views of individual components constituting the signal indicator lamp 1.
  • 4A and 4B are exploded perspective views of the signal indicator lamp 1.
  • FIG. 5A and 5B are exploded perspective views of the signal indicator lamp 1 when viewed from a direction different from that in FIGS. 4A and 4B.
  • a signal indicator lamp 1 according to an embodiment of the present invention is used at a factory manufacturing site or the like, and has an elongated cylindrical shape.
  • the posture of the signal indicator lamp 1 at the time of use can be arbitrarily set according to use conditions.
  • the description will be made with reference to the signal display lamp 1 when it is arranged vertically so that the vertical direction of the paper surface in each of FIGS. 1 to 5B coincides with the longitudinal direction of the signal display lamp 1. .
  • description will be made with the upper side of the paper as the upper side of the signal indicator lamp 1 and the lower side of the paper as the lower side of the signal indicator lamp 1.
  • the signal indicator lamp 1 includes an LED mounting board 2, a lens unit 3, a body 4, a plate 5, a bracket 6, a waterproof ring 7, a waterproof sheet 8, and a waterproofing.
  • the LED mounting substrate 2 has a substantially rectangular thin plate shape that is long in the vertical direction.
  • a symbol L is attached to the longitudinal direction (vertical direction) of the LED mounting substrate 2
  • a symbol S is attached to the short direction of the LED mounting substrate 2
  • a symbol T is attached to the thickness direction of the LED mounting substrate 2.
  • the dimension of the LED mounting board 2 in the longitudinal direction L is slightly smaller than the longitudinal dimension of the signal indicator lamp 1 (see FIG. 2).
  • the LED mounting substrate 2 has a front surface 2A and a back surface 2B forming both side surfaces in the thickness direction T.
  • the most visible surface in FIG. 4B is the front surface 2A
  • the most visible surface in FIG. 5B is the back surface 2B.
  • the longitudinal direction L and the lateral direction S are orthogonal to each other on the same plane parallel to the front surface 2A and the back surface 2B.
  • the thickness direction T is orthogonal to both the longitudinal direction L and the short direction S.
  • the thickness direction T is also the depth direction F of the signal indicator lamp 1 (see FIG. 2), and the short direction S is also the left-right direction G of the signal indicator lamp 1 (see FIG. 1).
  • an LED (light emitting diode) 14 is mounted at a position deviated from the center position 2C in the short direction S toward the one end 2D.
  • the LED 14 mounted on the front surface 2A and the LED 14 mounted on the back surface 2B are in the same position in the short-side direction S (a position slightly on the center position 2C side from the edge 2E in the end 2D) (FIG. 4B and FIG. 5B).
  • a plurality of LEDs 14 are mounted in a line along the longitudinal direction L on each of the front surface 2A and the back surface 2B. Specifically, four LEDs 14 arranged at equal intervals along the longitudinal direction L form one set 15, and five sets 15 are arranged at equal intervals along the longitudinal direction L. That is, on the LED mounting substrate 2, a plurality of sets of LEDs 14 are mounted in the longitudinal direction L at a predetermined interval. In addition, the space
  • the five sets 15 are arranged in approximately three-quarters of one side (upper side) in the longitudinal direction L on each of the front surface 2A and the back surface 2B.
  • the five groups 15 are distinguished in order from the top, such as the first group 15A, the second group 15B, the third group 15C, the fourth group 15D, and the fifth group 15E.
  • One set 15A is arranged at the upper end of the front surface 2A and the back surface 2B.
  • the LED 14 is not disposed in the substantially quarter region on the other side (lower side) in the longitudinal direction L, and the terminal 16 is mounted in the region of the front surface 2A. Yes.
  • the terminal 16 is connected with a cable 17 for supplying control signals and power.
  • the terminal 16 and each LED 14 are electrically connected. Each LED 14 emits light when a control signal or power is supplied from the cable 17 via the terminal 16.
  • the lens units 3 are provided in the same number (that is, five) as the sets 15 of LEDs 14 described above, and the form (shape and size) of each lens unit 3 is the same.
  • These five lens units 3 are used by being connected in the vertical direction (longitudinal direction L of the LED mounting substrate 2). That is, each lens unit 3 is used by connecting another lens unit 3 having the same form as itself in the longitudinal direction L.
  • a plurality of (5) lens units 3 are provided in the signal indicator lamp 1, a plurality of (5) lens units 3 are provided. It is connected continuously.
  • the five lens units 3 may be distinguished in order from the top, such as a first lens unit 3A, a second lens unit 3B, a third lens unit 3C, a fourth lens unit 3D, and a fifth lens unit 3E.
  • Each lens unit 3 has the same form, but may be colored with a different color.
  • the first lens unit 3A may be red
  • the second lens unit 3B may be orange
  • the third lens unit 3C may be green
  • the fourth lens unit 3D may be blue
  • the fifth lens unit 3E may be white.
  • each lens unit 3 may have the same color, and the emission color of the LED 14 that emits light toward each lens unit 3 may be different for each lens unit 3.
  • FIG. 6 is a perspective view of the lens unit 3.
  • FIG. 7 is a plan view of the lens unit 3.
  • FIG. 8 is a bottom view of the lens unit 3.
  • FIG. 9 is a left side view of the lens unit 3.
  • FIG. 10 is a rear view of the lens unit 3.
  • FIG. 11 is an AA arrow view of FIG. 12 and 13 are perspective views of the main part of the lens unit 3 partially shown in cross section.
  • the individual lens units 3 will be described with reference to FIGS. 6 to 13 other than FIG. 7, the LED mounting substrate 2 is not shown for convenience.
  • the lens unit 3 has a substantially cylindrical shape.
  • a direction extending through a central axis (not shown) passing through the circle center of the lens unit 3 is referred to as an axial direction X of the lens unit 3.
  • the lens unit 3 has a predetermined length in the axial direction X.
  • the outer contour 3R of the lens unit 3 when viewed from the axial direction X is substantially circular. Below, it demonstrates using the circumferential direction P and the radial direction R of the lens unit 3.
  • the entire lens unit 3 is made of a transparent resin (including translucent and colored transparent, the same shall apply hereinafter) as a material, and is molded using a mold by injection molding or the like. Each part (to be described) in the lens unit 3 is integrated.
  • An acrylic resin is mentioned as resin here.
  • the lens unit 3 mainly includes a light guide radiation unit 20, an auxiliary lens unit 21, and a support unit 22 (see a portion filled with dots in FIG. 7).
  • the light guide radiation unit 20 has a cylindrical shape (in detail, a substantially cylindrical shape) that forms most of the outer contour 3R of the lens unit 3. Therefore, the circumferential direction of the light guide radiation part 20 is the same as the circumferential direction P described above, and the radial direction of the light guide radiation part 20 is the same as the radial direction R described above.
  • a slit portion 23 is formed at one place on the circumference of the light guide radiation portion 20. The slit part 23 cuts out the light guide radiation part 20 in the axial direction X, and cuts one place on the circumference of the light guide radiation part 20 along the axial direction X.
  • the cross section of the light guide radiation portion 20 when cut by a cut surface orthogonal to the axial direction X has a substantially C-shape that is interrupted at the slit portion 23.
  • the light guide radiation part 20 is formed with a pair of opposed end faces that divide the slit part 23, and these opposed end faces will be referred to as incident surfaces 24.
  • incident surfaces 24 Of the pair of incident surfaces 24, one (right side in FIG. 7) is referred to as an incident surface 24A, and the other (left side in FIG. 7) is referred to as an incident surface 24B.
  • These incident surfaces 24 are opposed to each other with the slit portion 23 interposed therebetween.
  • These incident surfaces 24 may be flat surfaces extending in parallel, or may swell in a substantially arc shape in a direction approaching each other as shown in FIG.
  • each incident surface 24 ⁇ / b> A side portion (referred to as the incident section 28) is located on the inner side (on the circle center side of the lens unit 3) than the outer contour 3 ⁇ / b> R of the lens unit 3. 3R is not configured.
  • the region other than each incident part 28 constitutes most of the outer contour 3R.
  • a plurality of convex portions 25 are integrally provided on the inner peripheral surface 20B of the light guide radiation portion 20. These convex portions 25 are linearly extending along the axial direction X while projecting toward the center of the circle of the lens unit 3 (inside in the radial direction R).
  • the cross-sectional shape of each convex portion 25 when cut by a cut surface orthogonal to the axial direction X differs depending on the position in the circumferential direction P on the inner peripheral surface 20B. Specifically, in the light guide radiation part 20, a position shifted by 180 degrees from the slit part 23 in the circumferential direction P is referred to as an opposite position 20C, and an area from each incident surface 24 to the opposite position 20C is from the order close to the incident surface 24.
  • the first area 20D, the second area 20E, and the third area 20F are divided into three.
  • the cross-sectional shape of the convex portion 25 in the first region 20D is substantially triangular.
  • the cross-sectional shape of the convex portion 25 in the third region 20F is a substantially semicircular shape.
  • the cross-sectional shape of the convex portion 25 in the second region 20E is similar to both the convex portion 25 in the first region 20D and the convex portion 25 in the third region 20F.
  • the auxiliary lens portion 21 is provided so as to cover the slit portion 23 from the outside in the radial direction R.
  • the auxiliary lens portion 21 is flat in the radial direction R and extends in a strip shape in the axial direction X (see FIG. 10).
  • the dimension of the auxiliary lens part 21 in the axial direction X is slightly smaller than the dimension of the light guide radiation part 20 in the axial direction X (see FIGS. 9 and 10).
  • the outer side surface 21A in the radial direction R and the inner side surface 21B in the radial direction R bulge in an arc shape in directions away from each other.
  • the cross section of the auxiliary lens portion 21 when cut by a cutting plane orthogonal to the axial direction X is gradually reduced in thickness in the radial direction R toward both outer sides in the circumferential direction P.
  • the end surfaces 21C on both sides in the circumferential direction P in the auxiliary lens portion 21 are flat surfaces extending along the axial direction X while intersecting the outer surface 21A and the inner surface 21B.
  • the outer side surface 21 ⁇ / b> A constitutes a part of the outer contour 3 ⁇ / b> R of the lens unit 3.
  • a pair of rail portions 26 extending in parallel along the axial direction X are integrally provided at the center in the circumferential direction P.
  • the dimension of each rail part 26 in the axial direction X is smaller than the dimension of the inner surface 21B in the axial direction X (see FIG. 11).
  • the distance between the pair of rail portions 26 is substantially the same as the thickness (dimension in the thickness direction T) of the LED mounting substrate 2.
  • a movement restraining portion 27 (first movement restraining portion) is provided between the pair of rail portions 26, a movement restraining portion 27 (first movement restraining portion) is provided.
  • the movement restraining portion 27 has a groove shape opened to the inside in the radial direction R on the inner side surface 21 ⁇ / b> B of the auxiliary lens portion 21, and extends in the axial direction X.
  • the lens unit 3 includes a connecting portion 29 that connects the light guide radiation portion 20 and the auxiliary lens portion 21.
  • the connection part 29 is thin plate shape in the axial direction X (refer FIG. 9).
  • the connecting portion 29 is disposed at a position slightly deviated upward from the center of the light guide / radiating portion 20 in the axial direction X (also the center of the entire lens unit 3) (see FIGS. 9 and 10).
  • the position of the connecting portion 29 in the axial direction X is an alignment position (boundary) Y between the two molds when the lens unit 3 is molded in two molds (illustrated) ( (See FIG. 10). Since the alignment position Y is deviated from the center of the lens unit 3, when the two molds are separated after the lens unit 3 is molded, the lens unit 3 is always located in one of the determined molds. This is convenient in terms of handling the lens unit 3 after molding.
  • connection part 29 is seen from the axial direction X, on both outer sides of the slit part 23 and the movement restraining part 27 in the circumferential direction P, the outer peripheral surface 20A of the light guide radiation part 20, the inner side face 21B and the end face of the auxiliary lens part 21. It is erected between each of 21C.
  • the outer peripheral surface 29A of the connecting portion 29 in the radial direction R constitutes a part of the outer contour 3R of the lens unit 3, and the outer peripheral surface 20A of the light guide radiation portion 20 and the outer surface 21A of the auxiliary lens portion 21. It is connected smoothly.
  • the support part 22 is accommodated inside the light guide radiation part 20.
  • the support part 22 is cylindrical. Strictly speaking, the support portion 22 has a substantially cylindrical shape having a smaller diameter than the light guide / radiation portion 20, and its central axis extends along the axial direction X. Further, the central axis (circular center) of the support portion 22 does not coincide with the central axis of the light guide radiation portion 20 (strictly speaking, the outer contour 3R of the lens unit 3), and the center of the light guide radiation portion 20 It is slightly shifted from the shaft to the opposite position 20C.
  • the dimension of the support part 22 in the axial direction X is larger than the dimension of the light guide radiation part 20 in the axial direction X.
  • one end portion (upper end portion) 22C of the support portion 22 in the axial direction X protrudes outside (upper side) from the light guide radiation portion 20, and the other end portion (lower end portion) of the support portion 22 in the axial direction X. 22D protrudes to the outer side (lower side) of the light guide radiation unit 20 (see FIGS. 9 and 10).
  • the upper end surface of the support portion 22 is referred to as one end side contact end surface 22E provided on one end side in the axial direction X in the lens unit 3, and the lower end surface of the support portion 22 is the other end side in the axial direction X in the lens unit 3. It is referred to as the other end side contact end face 22 ⁇ / b> F provided in (see FIGS. 9 and 10). Both the one end side contact end surface 22E and the other end side contact end surface 22F are flat along a direction orthogonal to the axial direction X.
  • the slit part 30 is formed in one place on the periphery of the support part 22.
  • the slit portion 30 cuts out the support portion 22 in the axial direction X, and cuts one place on the circumference of the support portion 22 along the axial direction X. Therefore, strictly speaking, the cross section of the support portion 22 when cut by a cutting plane orthogonal to the axial direction X has a substantially C-shape that is broken at the slit portion 30.
  • the slit part 30 and the slit part 23 of the light guide radiation part 20 are at the same position. Therefore, the slit part 30 and the slit part 23 are located on the same straight line (specifically, a straight line along a flat surface M described later) extending in the radial direction R.
  • the support portion 22 has an outer peripheral surface 22A and an inner peripheral surface 22B.
  • the outer peripheral surface 22A is light-shielded over the entire circumference. Specifically, the outer peripheral surface 22A is provided with streak-like convex portions 31 extending along the axial direction X, and the outer peripheral surface is arranged such that a large number of convex portions 31 are arranged in the circumferential direction of the outer peripheral surface 22A. It is arranged over the entire circumferential direction of 22A.
  • disconnects by the cut surface orthogonal to the axial direction X has comprised the substantially triangular shape which sharpens toward the outer side.
  • the outer peripheral surface 22A may be embossed.
  • a plurality (four in this case) of positioning ribs 32 are provided on the inner peripheral surface 22B.
  • the four positioning ribs 32 are arranged at equal intervals in the circumferential direction of the inner peripheral surface 22B.
  • the nearest positioning rib 32 with respect to the slit portion 30 is located at a position away from the slit portion 30 by about 45 degrees in the circumferential direction of the inner peripheral surface 22B.
  • Each positioning rib 32 is a rectangular column extending in the axial direction X, and its tip end portion 32A (engagement portion, first connection guide portion) is one end side of the lens unit 3 in the axial direction X (the one end side contact described above). Strictly speaking, it is provided on the contact end face 22E) and protrudes outward (upper side) from the one end side contact end face 22E (see FIG. 6).
  • the above-described light shielding treatment may be performed not on the outer peripheral surface 22A but on the inner peripheral surface 22B, or may be performed on both the outer peripheral surface 22A and the inner peripheral surface 22B.
  • the lens unit 3 includes a connecting portion 33 that connects the light guide radiation portion 20 and the support portion 22.
  • the connecting portion 33 is a thin plate having the same thickness as the connecting portion 29 described above, and is in the same position as the connecting portion 29 in the axial direction X.
  • the connecting portion 33 has a substantially U shape opened to the slit portion 23 side of the light guide radiation portion 20 when viewed from the axial direction X.
  • Such a connecting portion 33 includes an inner peripheral surface 20B of the light guide / radiating portion 20 (strictly speaking, an inner peripheral surface 20B in the second region 20E and the third region 20F described above), and an outer peripheral surface 22A of the support portion 22. It is constructed between the inner peripheral surface 20B and the outer peripheral surface 22A so as to close the gap.
  • the gap 34 is formed between the connecting portion 33 and the inner peripheral surface 20B in the first region 20D when viewed from the axial direction X. Is partitioned. The gap 34 is exposed to the outside from both sides of the lens unit 3 in the axial direction X (see FIGS. 7 and 8).
  • the inner peripheral surface 22B of the support portion 22 is provided with a substantially circular blocking portion 35 that closes most of the region in the hollow portion of the support portion 22 when viewed from the axial direction X.
  • the blocking portion 35 is a thin plate having the same thickness as each of the connecting portion 29 and the connecting portion 33, and is in the same position as each of the connecting portion 29 and the connecting portion 33 in the axial direction X.
  • the base portion of each positioning rib 32 (the lower end portion opposite to the tip portion 32A) is connected to the upper surface of the blocking portion 35 (see FIGS. 12 and 13).
  • a notch groove 36 extending linearly along the radial direction of the support portion 22 is formed continuously from the slit portion 30 of the support portion 22.
  • the cutout groove 36 penetrates the closing portion 35 in the thickness direction, and is located farther from the slit portion 30 than the circle center of the closing portion 35 (on the opposite side of the slit portion 30 with respect to the circle center of the closing portion 35). To the position).
  • the portion farthest from the slit portion 23 is referred to as a bottom surface 36A (second movement restraining portion).
  • a direction in which the cutout groove 36 extends from the slit portion 30 toward the bottom surface 36A when viewed from the axial direction X is referred to as a depth direction D, and a direction orthogonal to the depth direction D is referred to as a width direction W.
  • the bottom surface 36A is flat along the width direction W.
  • the bottom surface 36A is provided on the side opposite to the auxiliary lens unit 21 in the depth direction D (on the side opposite to the position 20C of the light guide radiation unit 20).
  • the slit portion 23, the slit portion 30, and the cutout groove 36 are located on the same straight line (a straight line along the flat surface M) described above.
  • the lens unit 3 includes a pair of insertion space forming members 40 in the closing portion 35.
  • portions corresponding to the cross section and the end face (not the cross section) are filled with dots.
  • the pair of insertion space forming members 40 has a lever shape extending along the axial direction X, and a substantially central portion in each axial direction X is connected to the closing portion 35.
  • the pair of insertion space forming members 40 sandwich a portion on the bottom surface 36 ⁇ / b> A side of the notch groove 36 (strictly, the circle center of the closing portion 35) from the width direction W when viewed from the axial direction X. As described above, they are arranged to face each other in the width direction W. The pair of insertion space forming members 40 are arranged to face each other in a non-contact state.
  • the closing portion 35 and the connecting portion 33 (including the portion connected to the closing portion 35 and the connecting portion 33 in the support portion 22) connect the pair of insertion space forming members 40 and the light guide radiation portion 20 (FIG. 11).
  • Each insertion space forming member 40 when viewed from the axial direction X has a rectangular shape that is long in the depth direction D (flat in the width direction W).
  • the pair of insertion space forming members 40 divide a gap called the insertion space 41 between the opposing surfaces 40A.
  • the insertion space 41 is exposed to the outside from both sides of the lens unit 3 in the axial direction X (see FIGS. 7 and 8).
  • the insertion space 41 is formed inside the support portion 22.
  • the cross section of the insertion space 41 when cut along a cutting plane orthogonal to the axial direction X is flat in the width direction W.
  • the one end portion 40B (upper end portion) in the axial direction X of the pair of insertion space forming members 40 is more in the axial direction X than the one end side contact end surface 22E that is the upper surface of the support portion 22. Projects outward (upward).
  • the other end portion 40C (lower end portion) in the axial direction X of the pair of insertion space forming members 40 is slightly more outward (lower side) in the axial direction X than the other end side contact end surface 22F which is the lower surface of the support portion 22. It protrudes. That is, the one end portion 40B protrudes outside the support portion 22 from the other end portion 40C.
  • an inclined surface 40 ⁇ / b> D that extends so as to incline in the axial direction X and chamfers the end portion is formed on the end portion on the other end portion 40 ⁇ / b> C side in the facing surface 40 ⁇ / b> A of each insertion space forming member 40.
  • a flat surface 40E along the axial direction X is formed at the end on the one end 40B side of the facing surface 40A of each insertion space forming member 40.
  • a convex portion 40F that slightly protrudes toward the mating insertion space forming member 40 is provided.
  • the dimension in the width direction W of the insertion space 41 is substantially the same as the dimension in the thickness direction T of the LED mounting substrate 2 (see FIG. 7). However, strictly speaking, the dimension in the width direction W of the insertion space 41 in a state in which the lens unit 3 exists as a single unit (a state in which the lens unit 3 is not connected to another lens unit 3) is in the thickness direction T of the LED mounting substrate 2. Slightly larger than the dimensions. Further, the dimension in the width direction W of the insertion space 41 is narrower on the one end 40B side than on the other end 40C side.
  • a recess 40G is formed that narrows the one end portion 40B (the portion on the convex portion 40F side) stepwise.
  • the lens unit 3 includes a reinforcing portion 42 in association with each insertion space forming member 40.
  • One reinforcing portion 42 is provided for each insertion space forming member 40.
  • Each reinforcing portion 42 is a thin plate shape in the longitudinal direction (depth direction D) of the insertion space forming member 40 when viewed from the axial direction X, and extends in the axial direction X (see FIG. 5A).
  • depth direction D longitudinal direction of the insertion space forming member 40 when viewed from the axial direction X, and extends in the axial direction X (see FIG. 5A).
  • FIG. 5A For convenience, there is a diagram in which the illustration of the reinforcing portion 42 is omitted.
  • each reinforcing portion 42 is provided at the other end portion 40 ⁇ / b> C of the corresponding insertion space forming member 40 (strictly, in the center in the depth direction D in the portion on the other end portion 40 ⁇ / b> C side from the closing portion 35. It is a position and has a triangular shape connected to both the closed portion 35 and the closed portion 35 (see FIG. 8).
  • the other end portion 40 ⁇ / b> C in the axial direction X of the pair of insertion space forming members 40 is reinforced by the reinforcing portion 42.
  • each insertion space forming member 40 is less likely to be bent (is less likely to swing) around a connection position (sometimes referred to as a fulcrum position Q) with the closing portion 35.
  • a connection position sometimes referred to as a fulcrum position Q
  • the one end portion 40B in the axial direction X of the pair of insertion space forming members 40 is not reinforced, it can be elastically deformed so as to swing around the fulcrum position Q (connection position with the closing portion 35). .
  • the lens unit 3 as described above has a flat surface M passing through the slit portion 23, the slit portion 30, the notch groove 36, and the circle center of the lens unit 3 when viewed from the axial direction X as shown in FIGS. It has a symmetrical shape with respect to.
  • a plurality of (here, five) lens units 3 are arranged along the vertical direction with their respective axial directions X being parallel (FIGS. 3A, 4A and FIG. 5A).
  • the other end side contact end face 22E of the support portion 22 of the lower second lens unit 3B in FIG. 14A is on the upper side in FIG. 14A.
  • the lens unit 3 (first lens unit 3A) faces the other end side contact end surface 22F of the support portion 22 from the axial direction X. From this state, as indicated by the white arrow in FIG. 14A, the second lens unit 3B is moved closer to the first lens unit 3A. Conversely, the first lens unit 3A may be brought closer to the second lens unit 3B.
  • the one end portion 40B of the pair of insertion space forming members 40 in the second lens unit 3B is replaced by the first lens. It enters between the other end portions 40C in the axial direction X of the pair of insertion space forming members 40 in the unit 3A.
  • the said one end parts 40B approach. 14B, the one end side contact end surface 22E of the support portion 22 of the second lens unit 3B contacts the other end side (the other end side contact end surface 22F of the support portion 22) of the first lens unit 3A.
  • (surface contact) is made, the connection between these lens units 3 is completed.
  • each positioning rib 32 inside the support portion 22 of the second lens unit 3B is engaged with the other end side (the inner peripheral surface 22B of the support portion 22) of the first lens unit 3A to be connected. is doing.
  • the second lens unit 3B and the third lens unit C are coupled, as shown in FIG. 14B, the second lens unit 3B is brought into contact with the third lens unit 3C (other coupled surfaces).
  • the lens unit 3) comes into contact (surface contact) with one end side (one end side contact end surface 22E).
  • the tip 32A of each positioning rib 32 of the third lens unit 3C is engaged with the other end of the second lens unit 3B.
  • the adjacent lens units 3 can be connected by the tip end portion 32 ⁇ / b> A of the positioning rib 32 in a state where the relative position is constant.
  • the flat one end side contact end surface 22E and the other end side contact end surface 22F are the support portions 22 of the mating lens unit 3 (the corresponding one of the one end side contact end surface 22E and the other end side contact end surface 22F). Abut. Accordingly, the support portion 22 of each lens unit 3 supports (positions) the other lens unit 3 to be connected from the axial direction X. In other words, the support unit 22 can stabilize the relative positions of the lens units 3 connected adjacent to each other. At this time, the adjacent lens units 3 are coaxial and parallel.
  • the adjacent lens units 3 in the first lens unit 3A to the fifth lens unit 3E are connected in the same procedure, and the five lens units 3 are integrated in a daisy chain as shown in FIG. To do.
  • insertion spaces 41 (five exist according to the five lens units 3) partitioned between the pair of insertion space forming members 40 extend in the axial direction X. They are aligned on the same straight line.
  • the LED mounting substrate 2 is inserted into the insertion space 41 of each lens unit 3 in a state where the longitudinal direction L thereof coincides with the axial direction X (a state in which the LED mounting substrate 2 is parallel).
  • the part is included (accommodated) in the insertion space 41 of each lens unit 3.
  • the LED mounting substrate 2 is in an attitude along the flat surface M as shown in FIG.
  • the slit portion 23, the slit portion 30, and the cutout groove 36 are inserted.
  • the thickness direction T of the LED mounting substrate 2 matches the width direction W described above.
  • the first set 15A of the LEDs 14 and the first lens unit 3A are at the same position.
  • the second set 15B of the LED 14 and the second lens unit 3B are at the same position, the third set 15C and the third lens unit 3C are at the same position, and the fourth set 15D and the fourth set 15D.
  • the lens unit 3D is at the same position, and the fifth group 15E and the fifth lens unit 3E are at the same position.
  • each LED 14 on the front surface 2 ⁇ / b> A is disposed to face one of the pair of incident surfaces 24 described above (here, the incident surface 24 ⁇ / b> A) with a gap
  • each LED 14 on the rear surface 2 ⁇ / b> B is a pair. Is opposed to the other of the incident surface 24 (here, the incident surface 24B) with a gap therebetween.
  • the end 2D (in the lateral direction S) on the LED mounting substrate 2 on the side where the LED 14 is located protrudes from the support portion 22 and the light guide radiation portion 20 in each lens unit 3, and the auxiliary lens. It is fitted into the movement restraining portion 27 (groove between the pair of rail portions 26) of the portion 21 and is sandwiched between the pair of rail portions 26.
  • the end 2 ⁇ / b> D is in contact with the auxiliary lens unit 21 from the short direction S in the movement suppressing unit 27. Thereby, the movement of the LED mounting substrate 2 in the short direction S (strictly, on the auxiliary lens portion 21 side) and the thickness direction T is suppressed. Thereby, the relative position of each lens unit 3 and LED14 in the position corresponding in the LED mounting board
  • the end portion 2F opposite to the end portion 2D in the short side direction S in the LED mounting substrate 2 is in contact with the bottom surface 36A of the notch groove 36 in the closing portion 35 of the lens unit 3 from the short side direction S. It touches. Thereby, the movement of the LED mounting substrate 2 in the short direction S (strictly speaking, the side opposite to the auxiliary lens unit 21 side) is suppressed. Therefore, the relative position of each lens unit 3 and the LED 14 at the corresponding position on the LED mounting substrate 2 can be further stabilized. Note that, in the LED mounting substrate 2, a portion on the end 2 ⁇ / b> F side with respect to the end 2 ⁇ / b> D in the short direction S is included in the support portion 22.
  • each LED 14 on the LED mounting substrate 2 When each LED 14 on the LED mounting substrate 2 emits light, light emitted from each LED 14 (LED radiated light) enters the light guide radiation portion 20 of the lens unit 3 from the incident surface 24 arranged to face the LED 14. Specifically, in the LED mounting substrate 2, light from each LED 14 on the front surface 2A is incident into the light guide radiation unit 20 from the incident surface 24A, and light from each LED 14 on the back surface 2B is guided from the incident surface 24B. It enters the light emitting unit 20. The light that has entered the light guide radiation part 20 from each incident surface 24 travels in the light guide radiation part 20 along the circumferential direction P. At this time, the light is guided in the entire region of the light guide radiation part 20 in the circumferential direction P.
  • the light is emitted from the light emitting unit 20 outward (outside in the radial direction R). That is, the light incident from the incident surface 24 into the light guide / radiation unit 20 is guided by the light guide / radiation unit 20 and is emitted outward in the entire circumferential direction of the light guide / radiation unit 20 (the entire region in the circumferential direction P).
  • the light is radiated relatively outward in the first region 20D by the convex portion 25 of the first region 20D.
  • a part of the light may be radiated to the inside of the light guide radiation unit 20, but the part of the light is irregularly reflected by the convex portion 25 of the third region 20F, and finally Radiated outward.
  • the light leaking from the slit portion 23 of the light guide radiation portion 20 is delivered to the auxiliary lens portion 21 and is emitted outward by the auxiliary lens portion 21.
  • emission part 20 via the incident surface 24 among the direct irradiation lights of LED14 is irradiated to the auxiliary lens part 21 and its internal peripheral surface 21B.
  • the auxiliary lens unit 21 and the inner peripheral surface 21B reflect the direct irradiation light from the LED 14 so as to be incident on the light guide radiation unit 20 from the outer peripheral surface 20A.
  • the auxiliary lens portion 21 and the inner peripheral surface 21B radiate the direct radiated light from the LED 14 from its own outer surface 21A and end surface 21C.
  • each lens unit 3 emits light almost uniformly in the entire region in the circumferential direction P.
  • each lens unit 3 When the light passes through the light guide radiation part 20 and travels to the inside of the light guide radiation part 20, this light is irregularly reflected by the outer peripheral surface 22 ⁇ / b> A (convex part 31) subjected to the light shielding process in the support part 22. Thereby, the light from the outside is weakened. In addition, the light leaking inside the light guide radiation part 20 is transmitted through the support part 22 and then incident on the light guide radiation part 20, thereby adversely affecting the light emission characteristics of the light guide radiation part 20. Occurrence can also be prevented by the convex portion 31. As a result, the light radiated from the light guide radiation unit 20 to the outside can be made to stand out.
  • the support part 22 by which the light shielding process was performed to 22 A of outer peripheral surfaces can also function as a blindfold with respect to the LED mounting board
  • the auxiliary lens portion 21 also plays a role of blinding a portion (end portion 2D) exposed from the slit portion 23 of the light guide radiation portion 20 in the LED mounting substrate 2.
  • the one end portions 40B of the pair of insertion space forming members 40 are connected to each other in the other lens unit 3.
  • the pair of insertion space forming members 40 are approaching each other by entering between the other end portions 40C.
  • the dimension (in the width direction W) of the insertion space 41 between the one end portions 40B is smaller than the dimension in the thickness direction T of the LED mounting substrate 2. Therefore, the one end portion 40B (in particular, the flat surface 40E and the convex portion 40F described above, refer to FIG. 11) is configured such that the LED mounting substrates 2 (the portion on the end portion 2F side avoiding the LED 14) are pressed at a predetermined pressure or more. And sandwiched from the thickness direction T (see also FIG. 7).
  • this signal indicator lamp 1 when a plurality of lens units 3 are connected in the axial direction X, in each lens unit 3, one end portion 40B of the pair of insertion space forming members 40 connects the LED mounting substrate 2 in the thickness direction. Hold firmly from T. Thereby, the relative position of each lens unit 3 and the LED 14 in the corresponding position (the same position in the longitudinal direction L) on the LED mounting substrate 2 is stabilized. Further, the relative positions of the lens units 3 and the LEDs 14 at the corresponding positions on the LED mounting substrate 2 are further stabilized by the movement restraining portion 27 and the bottom surface 36A of the notch groove 36 shown in FIG. Therefore, as a result, the signal indicator lamp 1 can stably guide and irradiate the light from the LED 14 to the lens unit 3 even when there is vibration.
  • each lens unit 3 the LED 14 mounted at a position biased toward the end 2 ⁇ / b> D side in the short direction S of the LED mounting substrate 2 is disposed in the slit portion 23 of the light guide radiation unit 20.
  • the A pair of opposed end surfaces of the slit portion 23 in the light guide radiation portion 20 is an incident surface 24, and light incident from the incident surface 24 into the lens unit 3 is guided by the light guide radiation portion 20, and its circumferential direction Radiated outward throughout. If it is such a structure, in the signal indicator lamp 1, the LED mounting board
  • the obtained LED mounting board 2 is referred to as an assembly 100.
  • the LED mounting substrate 2 is inserted into the insertion space 41 of each lens unit 3 after the lens unit 3 is connected first.
  • the assembly 100 is assembled by connecting the adjacent lens units 3 after inserting the LED mounting substrate 2 into the insertion space 41 of the plurality of lens units 3 arranged in a disconnected state in advance. Also good.
  • the body 4 has a hollow cylindrical shape that accommodates a lower portion of the LED mounting board 2 where the LEDs 14 are not mounted, and its central axis extends in the vertical direction. ing.
  • the hollow portion of the body 4 is exposed from both above and below.
  • a plurality (two in this case) of boss portions 50 extending vertically are formed on the inner peripheral surface of the body 4. These boss portions 50 are arranged at intervals in the circumferential direction of the inner peripheral surface of the body 4.
  • Each boss portion 50 is formed with a screw hole 50A extending vertically (see FIGS. 4B and 5B).
  • the plate 5 has a substantially disk shape that is thin in the vertical direction. As shown in FIG. 4B, the plate 5 has a concave cut that penetrates the plate 5 in the thickness direction while being recessed toward the center of the circle of the plate 5. A notch 5A is formed. A plurality of (here, two) through holes 5B are formed at positions where the notch 5A is avoided in the plate 5. These through holes 5 ⁇ / b> B are round holes that penetrate the plate 5 in the thickness direction, and are arranged at intervals in the circumferential direction of the plate 5. On the upper surface of the plate 5, a support part 51 (second support part) is attached to a circular center position of the plate 5. The support portion 51 has a substantially rectangular parallelepiped block shape.
  • At least one part contains elastic members, such as rubber
  • the plate 5 is accommodated from below in the body 4 in a state where the plate 5 itself is horizontal and the support portion 51 faces upward. Screws (not shown) are inserted into the through holes 5B of the support portion 51 from below, and are assembled into screw holes 50A (see FIG. 5B) of the corresponding boss portions 50 in the body 4. Thereby, the plate 5 is fixed to the body 4.
  • the bracket 6 has a hollow cylindrical shape, and its central axis extends in the vertical direction.
  • a disc-shaped bottom wall 6A is integrally provided at the lower end of the bracket 6, and the hollow portion of the bracket 6 is closed from below by the bottom wall 6A.
  • a plurality of (here, three) through holes 6B are formed in the bottom wall 6A. These through-holes 6B are round holes that penetrate the bottom wall 6A in the thickness direction, and are arranged at intervals in the circumferential direction of the bottom wall 6A.
  • One nut 52 is fixed to a portion of the upper surface of the bottom wall 6A that overlaps each through hole 6B.
  • the hollow part (part in which the screw is formed) of the nut 52 and the through hole 6B below the hole 52 communicate with each other.
  • a through hole 6C that penetrates the bottom wall 6A in the thickness direction is formed at a position in the bottom wall 6A that avoids the through hole 6B.
  • the through hole 6C has a substantially rectangular shape larger than the through hole 6B (see FIG. 5B).
  • the bracket 6 is fixed to the body 4 by fitting the upper portion of the bracket 6 into the body 4 from below.
  • the waterproof ring 7 is a rubber packing formed in a ring shape, and is fitted on the upper end portion of the outer peripheral surface of the bracket 6. Strictly speaking, an annular groove 6D extending along the outer peripheral surface is formed at the upper end portion of the outer peripheral surface of the bracket 6, and the waterproof ring 7 is set in the annular groove 6D.
  • the waterproof ring 7 seals between the upper end of the bracket 6 and the lower end of the inner peripheral surface of the body 4 (see FIG. 2). This prevents water from entering the bracket 6 and the body 4 through the space between the upper end of the bracket 6 and the inner peripheral surface of the body 4.
  • the waterproof sheet 8 has a disk shape formed of an elastic sheet such as rubber.
  • the waterproof sheet 8 is formed with a through hole 8A and a through hole 8B that penetrate the waterproof sheet 8 in the thickness direction.
  • the through hole 8B has a substantially semicircular shape and is larger than the through hole 8A.
  • the waterproof sheet 8 is attached to the lower surface of the bottom wall 6 ⁇ / b> A of the bracket 6. Strictly speaking, a recess 6E is formed in the lower surface of the bottom wall 6A so as to surround each through-hole 6B and the through-hole 6C and is shallowly recessed upward (see FIG. 5B). While being accommodated in 6E, at least the lower end portion protrudes downward from the recess 6E (see FIGS. 1 and 2).
  • the waterproof sheet 8 serves to seal between the pedestal (not shown) and the bottom wall 6 ⁇ / b> A of the bracket 6. This prevents water from entering the bracket 6 between the pedestal and the bottom wall 6A.
  • the waterproof ring 9 is a ring-shaped packing made of rubber or the like, and is fitted on the upper end portion of the outer peripheral surface of the body 4. Strictly speaking, an annular groove 4A extending along the outer peripheral surface is formed at the upper end portion of the outer peripheral surface of the body 4, and the waterproof ring 9 is engaged with the annular groove 4A while the upper end of the body 4 is being engaged. The edge is trimmed over the entire circumference (see FIG. 2).
  • the body 4, the plate 5, the bracket 6, the waterproof ring 7, the waterproof sheet 8, and the waterproof ring 9 described above constitute a base portion 60.
  • the outer lens 10 has a hollow cylindrical shape that accommodates five connected lens units 3, and its central axis extends in the vertical direction.
  • the outer lens 10 is formed of a transparent resin (for example, polycarbonate) having impact resistance and translucency.
  • the hollow part of the outer lens 10 is exposed from both the upper and lower sides.
  • the outer top 11 has a disk shape, and a flange portion 11A projecting downward is integrally provided in the entire outer peripheral edge.
  • the flange portion 11 ⁇ / b> A has a ring shape that borders the outer peripheral edge of the outer top 11.
  • a pair of sandwiching protrusions 53 (first support portions) projecting downward are provided at substantially circular center positions on the lower surface of the outer top 11.
  • the pair of clamping protrusions 53 has substantially the same configuration as the other end portion 40 ⁇ / b> C of the pair of insertion space forming members 40 in each lens unit 3.
  • the outer top 11 is provided with a reinforcing portion 54.
  • the reinforcing part 54 has the same configuration as the reinforcing part 42 described above, and is provided for each holding protrusion 53 to reinforce the corresponding holding protrusion 53.
  • the outer top 11 is assembled to the upper end portion of the outer lens 10 such that the flange portion 11 ⁇ / b> A is fitted to the upper end portion of the outer lens 10.
  • the outer top 11 is integrated with the outer lens 10, and the hollow portion of the outer lens 10 is closed from above by the outer top 11 (see FIG. 2).
  • the pair of clamping protrusions 53 have advanced into the hollow portion of the outer lens 10 from above (see FIG. 2).
  • the waterproof cap 12 is a ring-shaped packing made of rubber or the like, and seals between the flange portion 11 ⁇ / b> A of the outer top 11 and the upper end portion of the outer lens 10. This prevents water from entering the outer lens 10 and the outer top 11 through the space between the outer top 11 and the upper end of the outer lens 10 (see FIG. 2).
  • the head cover 13 has a circular cap shape and is assembled to the outer top 11 from above so as to cover the upper surface of the outer top 11.
  • the assembly of the body 4 and the bracket 6, the assembly of the body 4 and the outer lens 10, the assembly of the outer lens 10 and the outer top 11, and the assembly of the outer top 11 and the head cover 13 are each performed by press fitting. Or assembly by screw connection.
  • screw coupling is employed, and one of the two parts to be combined is formed with a convex rib 70 extending in the circumferential direction of the signal indicator lamp 1 (same as the circumferential direction P described above).
  • a groove 71 for receiving the rib 70 is formed on the other of the two parts (see FIGS. 3A to 5B).
  • the assembly 100 (the five lens units 3 connected in the axial direction X and the LED mounting board 2) is housed in the outer lens 10.
  • the one end portions 40 ⁇ / b> B of the pair of insertion space forming members 40 approach each other by entering between the pair of sandwiching protrusions 53 on the outer top 11, and the upper end portion of the LED mounting substrate 2.
  • One end portion in the longitudinal direction) 2G is sandwiched from the thickness direction T.
  • the pair of sandwiching protrusions 53 directly or indirectly connect the first lens unit 3A (connected to the other lens unit 3) or the upper end 2G of the LED mounting substrate 2 via the one end 40B. I support it.
  • the lower portion of the LED mounting substrate 2 where the LEDs 14 are not mounted is accommodated in the body 4 as described above, and is in contact with the support portion 51 on the upper surface of the plate 5 in the body 4 from above. . Since the support portion 51 is elastically deformable as described above, the support portion 51 supports the lower end portion 2H (the other end portion in the longitudinal direction L) of the LED mounting substrate 2 so as to urge upward. Accordingly, the five lens units 3 and the LED mounting substrate 2 (that is, the entire assembly 100) are pressed against the sandwiching protrusion 53 of the outer top 11 from below. Therefore, the entire LED mounting substrate 2 and the plurality of lens units 3 can be held by the sandwiching protrusions 53 and the support portions 51 so that rattling does not occur. Therefore, the signal indicator lamp 1 can guide and irradiate the light from the LED 14 to the lens unit 3 more stably even when there is vibration.
  • one end side in the longitudinal direction L of the LED mounting substrate 2 (the lens unit 3 on the one end side or one end portion (upper end portion 2G) of the LED mounting substrate 2) is supported by the clamping protrusion 53 on the outer lens 10 side. Then, the other end portion (lower end portion 2H) in the longitudinal direction L of the LED mounting substrate 2 is supported by the support portion 51 of the base portion 60. Then, by connecting the outer lens 10 to the base portion 60, the entire five lens units 3 are fixed to both the outer lens 10 and the base portion 60. Thereby, each of the lens unit 3 and the LED mounting substrate 2 can be held in the signal indicator lamp 1.
  • the signal indicator lamp 1 can guide and irradiate the light from the LED 14 to the lens unit 3 more stably even when there is vibration.
  • the light emitted from each lens unit 3 passes through the outer lens 10 and is irradiated to the outside from the entire circumferential direction of the signal indicator lamp 1.
  • the waterproof ring 9 at the upper end of the body 4 may contribute to supporting the assembly 100 by abutting the lowest fifth lens unit 3E from below.
  • the cable 17 connected to the terminal 16 of the LED mounting board 2 passes through the notch 5A of the plate 5, the through hole 6C of the bracket 6, and the through hole 8B of the waterproof sheet 8. 1 is pulled out and connected to an external power source.
  • each positioning rib in one lens unit 3 (the third lens unit 3C).
  • the front end portion 32A of 32 is engaged with the other end side (the inner peripheral surface 22B on the other end side contact end surface 22F side) of the support portion 22 in the other lens unit 3 (second lens unit 3B).
  • the same number of recesses 90 (second connection guide portions) that receive the end portions 32 ⁇ / b> A of the positioning ribs 32 as the positioning ribs 32 (here, four) are provided. It is good to be (refer FIG. 13).
  • Each of the lens units 3 (each of the two connected lens units 3) centering on a rotation axis (not shown) along the axial direction X is obtained by engaging the tip portions 32 ⁇ / b> A one by one with each recess 90. Rotation (twisting adjacent lens units 3) can be suppressed. Thereby, it can suppress that the load by the said twist with respect to the LED mounting substrate 2 included in the insertion space 41 of each lens unit 3 is applied.
  • a concave portion 90 is provided in place of the tip end portion 32A of each positioning rib 32 in the one lens unit 3, and the tip end portion 32A of each positioning rib 32 is provided on the other end side of the other lens unit 3. It may be provided.
  • the said other end part 40C is reinforced by the reinforcement part 42, and it is hard to bend.
  • the one end portion 40B is reinforced by the reinforcing portion 42 when entering between the other end portions 40C in the axial direction X of the pair of insertion space forming members 40 of the other lens units 3 to be connected. Enter between the end portions 40C. Therefore, the one end portions 40B can be reliably elastically deformed and approach each other, and the LED mounting substrate 2 can be sandwiched from the thickness direction T (see FIG. 14B).
  • the reinforcing portion 42 can be omitted as shown in FIGS. 15A and 15B.
  • the light guide radiating section 20 may also serve as the support section 22.
  • the support portion 22 (see FIG. 14A and the like) that existed separately from the light guide radiation portion 20 can be omitted.
  • the lens units 3 to be coupled are stably supported by the light guide radiation portions 20 being in direct contact with each other.
  • the fulcrum position (the swing center of the one end 40B) Q when the one end 40B of each insertion space forming member 40 is elastically deformed is substantially the center of the lens unit 3 in the axial direction X (strictly from the center to the upper side).
  • the position is slightly deviated, and may not be the same as shown in FIG. 14A.
  • the fulcrum position Q can be set to an arbitrary position in the axial direction X in order to set the clamping force of the LED mounting substrate 2 by the one end portion 40B of the pair of insertion space forming members 40 to a desired magnitude.
  • the fulcrum position Q may not be a connection portion between the insertion space forming member 40 and the closing portion 35 but a connection portion between the closing portion 35 and the support portion 22 as shown in FIGS. 17A and 17B.
  • each insertion space forming member 40 is connected to the closing portion 35 at the other end portion 40 ⁇ / b> C and can swing with the closing portion 35.
  • auxiliary lens portion 21 may be omitted from each lens unit 3 and the outer lens 10 may be provided with the auxiliary lens portion 21.
  • the support portion 51 on the upper surface of the plate 5 includes the elastic member.
  • at least a part of the holding protrusion 53 of the outer top 11 includes the elastic member. May be.
  • the outer top 11 may be integrated as a part of the outer lens 10. In that case, the pinching protrusion 53 of the outer top 11 is provided on the outer lens 10.
  • FIG. 18 is a perspective view of the lens unit 3 in the fourth modification.
  • FIG. 19 is a plan view of the lens unit 3 in the fourth modification.
  • the lens unit 3 of the fourth modified example shown in FIGS. 18 and 19 has an inner irradiation unit on the inner side of the light guide radiation unit 20 and on the outer side of the support unit 22 (that is, between the light guide radiation unit 20 and the support unit 22). 80 is included.
  • a pair of the inner irradiation parts 80 is provided so as to be arranged on both sides of the support part 22 in the width direction W described above.
  • Each inner irradiation unit 80 is arranged at a position shifted by about +90 degrees or about ⁇ 90 degrees from the slit part 23 in the circumferential direction P.
  • Each inner irradiation part 80 has a columnar shape extending along the axial direction X from the connecting part 33.
  • each inner irradiation unit 80 when cut along a plane orthogonal to the axial direction X has a substantially triangular shape that narrows toward the opposite position 20C of the light guide radiation unit 20. Therefore, the end surface 80A on the slit portion 23 side in each inner irradiation unit 80 is a flat surface along both the width direction W and the axial direction X.
  • each inner side irradiation part 80 is constructed between the light guide radiation
  • the light that has been irradiated by the inner irradiation unit 80 and has reached the slit unit 23 side is radiated outward by the auxiliary lens unit 21 of the slit unit 23.
  • emission part 20 can be equalized in the circumferential direction P.
  • the cross-sectional shape of the convex portion 25 on the inner peripheral surface 20B of the light guide radiation portion 20 is different in the first region 20D, the second region 20E, and the third region 20F (FIGS. 6 to 6). 8), as in the fourth modification, the cross-sectional shape of the convex portion 25 may be the same throughout the first region 20D to the third region 20F.
  • the cross-sectional shape of each convex portion 25 is similar to the cross-sectional shape of the convex portion 25 (see FIGS. 6 to 8) in the initial second region 20E. Therefore, the basic cross-sectional form of each convex part 25 when it cut

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention porte sur une lampe d'affichage de signal (1) comprenant : un substrat de montage de DEL (2) ; et une unité de lentille (3) ayant un espace d'introduction (41) pour recevoir au moins une partie du substrat de montage de DEL (2) et ayant une longueur prescrite dans la direction axiale (X). L'unité de lentille (3) est utilisée connectée dans la direction axiale (X) à une autre unité de lentille (3) de la même forme. L'unité de lentille (3) comprend une paire d'éléments de formation d'espace d'introduction (40). La paire d'éléments de formation d'espace d'introduction (40) séparent l'espace d'introduction (41), entre les surfaces en regard (40A) de ces derniers. Des sections d'extrémité (40B) de la paire d'éléments de formation d'espace d'introduction (40), dans la direction axiale (X), sont déformables élastiquement et, en tant que résultat d'une entrée entre d'autres sections d'extrémité (40C) d'une paire d'éléments de formation d'espace d'introduction (40) d'une autre unité de lentille (3) dans la direction axiale (X), s'approchent l'une de l'autre et prennent en sandwich le substrat de montage de DEL (2) depuis la direction d'épaisseur (T).
PCT/JP2013/076877 2013-10-02 2013-10-02 Lampe d'affichage de signal WO2015049748A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015540309A JP6016043B2 (ja) 2013-10-02 2013-10-02 信号表示灯
PCT/JP2013/076877 WO2015049748A1 (fr) 2013-10-02 2013-10-02 Lampe d'affichage de signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/076877 WO2015049748A1 (fr) 2013-10-02 2013-10-02 Lampe d'affichage de signal

Publications (1)

Publication Number Publication Date
WO2015049748A1 true WO2015049748A1 (fr) 2015-04-09

Family

ID=52778359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/076877 WO2015049748A1 (fr) 2013-10-02 2013-10-02 Lampe d'affichage de signal

Country Status (2)

Country Link
JP (1) JP6016043B2 (fr)
WO (1) WO2015049748A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012002163A1 (fr) * 2010-06-30 2012-01-05 株式会社パトライト Appareil émetteur de lumière
JP2012099243A (ja) * 2010-10-29 2012-05-24 Arrow Co Ltd 表示灯

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012002163A1 (fr) * 2010-06-30 2012-01-05 株式会社パトライト Appareil émetteur de lumière
JP2012099243A (ja) * 2010-10-29 2012-05-24 Arrow Co Ltd 表示灯

Also Published As

Publication number Publication date
JP6016043B2 (ja) 2016-10-26
JPWO2015049748A1 (ja) 2017-03-09

Similar Documents

Publication Publication Date Title
JP5954600B2 (ja) 信号表示灯
JP2012025362A (ja) 車両用室内灯
JP6570235B2 (ja) ランプ用カバー、照明ランプ及び照明装置
JP5967458B2 (ja) 隣り合う電気機器を連結するための連結構造および信号表示灯
US9941644B1 (en) Power outlet device
JP6195135B2 (ja) 電気機器
JP6016043B2 (ja) 信号表示灯
KR101588270B1 (ko) 엘이디 조명기구
JP5571828B2 (ja) 車両用灯具
JP6833441B2 (ja) 車両用灯具
JP2019021633A (ja) Ｌｅｄ灯具
JP2015215971A (ja) Ｌｅｄユニットおよびそれを用いた照明器具
JP2017212079A (ja) Ｌｅｄユニット及びそれを備えた照明器具
JP2018138952A (ja) 表示装置
JP6793394B2 (ja) 照明装置
JP2016031810A (ja) インジケータ
JP6164492B2 (ja) 車両用照明装置
JP2018045235A (ja) 表示灯
US9487133B2 (en) Turn lamp for door mirror
JP5942259B2 (ja) 照明器具
JP2016171039A (ja) Ｌｅｄ光源ユニット及び照明器具
JP6292512B2 (ja) Ｌｅｄユニットおよびそれを用いた照明器具
JP3129470U (ja) 遊技機の電飾装置
JP3168867U (ja) 照明ライト
JP2018097984A (ja) 照明装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13894958

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015540309

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13894958

Country of ref document: EP

Kind code of ref document: A1