Lighting equipment

Abstract

To provide a lighting device which enables reduction of the number of components to be replaced when characteristics of light to be radiated are changed.SOLUTION: A lighting device 1 includes: a circuit board 21; multiple light-emitting parts 22 mounted in a line on the circuit board 21; a body part 12 which has a main piece 121 and a pair of side pieces 122 and in which the circuit board 21 is fixed to the main piece 121; and a cover 11 disposed so as to cover a +Z direction side entire part in the circuit board 21. Two grooves 122a extending along a longitudinal direction are formed on sides of surfaces facing each other of the pair of side pieces 122. The cover 11 has: a cover body 111 having light transmissivity, formed of a soft material having a rigidity lower than that of the body part 12, and formed in an elongated shape; and engagement parts 112 each of which is continuously integrated with the cover body 111 and fitted in the groove 122a to cause the cover 11 to engage with the body part 12 in the fitting state.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] An LED lighting device has been proposed which comprises a long LED lighting device main body and a long inner frame formed from a lightweight metal material such as aluminum and which houses the LED lighting device main body, the LED lighting device main body having a linear LED light-emitting component having multiple LED elements arranged on a long LED substrate, and an LED internal component which is manufactured by extrusion molding of silicone resin or the like and which contains the LED light-emitting component (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7032506 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in such an LED lighting device, when the purpose or place of use changes, it may be required to change the color or light distribution characteristics of the emitted light accordingly. In this case, since the LED lighting device body of the LED lighting device described in Patent Document 1 has a structure in which the LED light-emitting member is embedded in the LED encapsulating member, when changing the color or light distribution characteristics of the emitted light, it is necessary to change the entire LED lighting device body. Therefore, the number of parts to be replaced when changing the color or light distribution characteristics of the emitted light increases.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a lighting device that can reduce the number of parts that need to be replaced when changing the characteristics of the emitted light. [Means for solving the problem]

[0006] In order to achieve the above object, the lighting device according to the present invention comprises: A long circuit board, A plurality of light emitting units mounted in a row on the circuit board; a main body portion having a long plate-like main piece and a pair of side pieces each of which is also long plate-like and extends from both ends in a short direction of the main piece to one surface side along a thickness direction of the main piece, the circuit board being fixed to the one surface side of the main piece; a cover disposed to entirely cover the opposite side of the circuit board from the main side, The pair of side pieces each have an equal number of grooves formed on opposing surfaces thereof, the grooves extending along the longitudinal direction of the pair of side pieces; The cover is A cover body formed in an elongated shape from a soft material having translucency and lower rigidity than the main body portion; a locking portion that is formed integrally with the cover body and that locks the cover to the body portion when fitted into the groove; Has Each of the pair of side pieces is formed with a plurality of grooves arranged in parallel in the thickness direction of the main piece, The cover body is formed in an elongated cylindrical shape, The locking portions protrude in radial directions from opposing positions on the side walls of the cover body across the central axis of the cover body, extend along the longitudinal direction of the cover body, and are engageable with the grooves. The locking portions are arranged such that the shapes of both sides across an imaginary plane that includes the central axis of the cover body and intersects with the two locking portions are symmetrical. . Effect of the Invention

[0007] According to the present invention, a groove extending along the longitudinal direction of the side piece is formed on each of a pair of side pieces of the main body on the opposing surface side, and the cover has a locking portion that locks the cover to the main body when fitted into the groove. This makes it possible to change the color or light distribution characteristics of the light emitted from the lighting device simply by changing the type of cover or the locking position on the main body, thereby reducing the number of parts that need to be replaced when changing the color or light distribution characteristics of the light emitted from the lighting device in response to a change in the use of the lighting device. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view of an illumination device according to a first embodiment of the present invention. [Diagram 2]FIG. 2A is a front view of the lighting device according to the first embodiment, and FIG. 2B is a front view of the lighting device according to the first embodiment in another state. [Diagram 3] FIG. 11 is a perspective view of an illumination device according to a second embodiment. [Figure 4] FIG. 10(A) is a front view of an illumination device according to a second embodiment, and FIG. 10(B) is a front view showing a state in which a cover is attached to a main body of the illumination device according to the second embodiment. [Diagram 5] 11A and 11B show a lighting device according to a third embodiment, in which (A) is a perspective view and (B) is a perspective view showing a state in which a cover of a portion surrounded by a dashed line in (A) is removed. [Figure 6] 11A and 11B show a connecting member according to a third embodiment, in which (A) is a perspective view and (B) is a plan view. [Figure 7] 13A is a front view of an illumination device according to a modified example, and FIG. 13B is a front view of an illumination device according to another modified example. [Figure 8] FIG. 13 is a front view of a lighting device according to a modified example. [Figure 9] 13A is a front view of an illumination device according to a modified example, and FIG. 13B is a front view of an illumination device according to another modified example. [Figure 10] 13A and 13B show a lighting device according to a modified example, in which FIG. 13A is a perspective view and FIG. 13B is a perspective view showing a state in which a cover of a portion surrounded by a dashed line in FIG. 13A has been removed. [Figure 11] FIG. 13 is a perspective view of a connecting member according to a modified example. [Figure 12] 13A and 13B show a lighting device according to a modified example, in which FIG. 13A is a perspective view and FIG. 13B is a perspective view showing a state in which a cover of a portion surrounded by a dashed line in FIG. 13A has been removed. [Figure 13] FIG. 13 is a perspective view of a connecting member according to a modified example. [Figure 14] 13A and 13B show a lighting device according to a modified example, in which FIG. 13A is a perspective view and FIG. 13B is a perspective view showing a state in which a cover of a portion surrounded by a dashed line in FIG. 13A has been removed. [Figure 15] 13A is a perspective view showing a first sub-connecting member according to a modified example, FIG. 13B is a perspective view showing a second sub-connecting member according to a modified example, and FIG. 13C is a perspective view of a connecting member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (Embodiment 1) Hereinafter, a lighting device according to an embodiment of the present invention will be described with reference to the accompanying drawings. The lighting device according to the present embodiment includes a long circuit board, a plurality of light-emitting units mounted in a row on the circuit board, a long plate-like main piece, and a pair of side pieces that are long plate-like and extend from both ends in the short direction of the main piece to one side along the thickness direction of the main piece, and includes a main body portion to which the circuit board is fixed on one side of the main piece, and a cover arranged to cover the entire side of the circuit board opposite to the main piece side. The pair of side pieces each have the same number of grooves formed on the opposing surface sides thereof, extending along the longitudinal direction of the pair of side pieces. The cover also includes a cover body formed in a long length from a soft material that is translucent and has a lower rigidity than the main body portion, and a locking portion formed continuously and integrally with the cover body and locking the cover body to the main body portion when fitted into the groove.

[0010] 1, the lighting device 1 according to the present embodiment includes a long, plate-like circuit board 21, a plurality of light-emitting units 22, a main body 12, and a cover 11. The lighting device 1 also includes a current-limiting element 23 mounted on the circuit board 21 together with the light-emitting units 22 for limiting a current supplied to the light-emitting units 22, a conductive wire (not shown) for supplying a current to the circuit board 21 on which the light-emitting units 22 are mounted, and caps (not shown) for closing both longitudinal ends of the main body 12.

[0011] The circuit board 21 is made of, for example, an FPC (Flexible Printed Circuits), and has a conductor pattern (not shown). Electrodes (not shown) electrically connected to conductive lines are provided at both ends of the circuit board 21 in the longitudinal direction. The circuit board 21 receives power from a DC power source (not shown) via the conductive lines. When a plurality of circuit boards 21 are arranged in parallel along their longitudinal directions, two adjacent circuit boards 21 are electrically connected to each other via electrodes.

[0012] The light emitting unit 22 is composed of, for example, an SMD (Surface Mount Device) type LED (Light Emitting Diode) light emitting device. The light emitting unit 22 has a light emitting unit main body that is rectangular plate-shaped and has a rectangular recess formed on one side in the thickness direction in a plan view, a light emitting element disposed at the bottom of the recess, and a wavelength conversion member filled in the recess. As the light emitting element, an LED element that emits ultraviolet light in a wavelength band of 200 nm to 380 nm is adopted. The wavelength conversion member is formed of, for example, a transparent silicone resin containing a dye that converts light in a wavelength band of 200 nm to 380 nm into visible light. The multiple light emitting units 22 are mounted in a row at equal intervals on the +Z direction side of the circuit board 21. The light emitting elements of each of the multiple light emitting units 22 are connected to each other in series or in parallel via a conductor pattern formed on the circuit board 21. The current limiting element 23 is inserted into the conductor pattern formed on the circuit board 21 and limits the current flowing through the light emitting element to a preset magnitude. When a current flows from a DC power source through the conductive wire and the conductive pattern to the light emitting element, the light emitting element lights up.

[0013] The main body 12 is long, has a U-shaped cross section, and is made of metal, resin, or the like. The main body 12 has a long rectangular plate-like main piece 121 and a pair of side pieces 122 that are long rectangular plate-like and extend in the short direction of the main piece 121, i.e., from both ends in the X-axis direction to one surface side along the thickness direction of the main piece, i.e., the +Z direction side. The circuit board 21 is fixed to the +Z direction side of the main piece 121. Each of the pair of side pieces 122 has two grooves 122a formed on the opposing surface sides, which extend along the longitudinal direction of the side piece 122 and are aligned approximately parallel along the Z-axis direction. The main body 12 also has a pair of magnet holders 123 that are formed continuously and integrally with the main piece 121, protrude from the main piece 121 to the -Z direction side, and hold a long cylindrical magnet 3. This allows the lighting device 1 to be attracted and fixed to a member formed of a magnetic material such as iron or a nickel alloy.

[0014] The cover 11 is disposed so as to cover the entire side of the circuit board 21 opposite to the main piece 121 side, i.e., the +Z direction side. The cover 11 has a cover body 111 formed in a long cylindrical shape from a soft material having translucency and lower rigidity than the main body part 12, and a locking part 112 formed continuously and integrally with the cover body 111 and locking the cover body 111 to the main body part 12 in a state where the cover body 111 is fitted into a groove 122a of the side piece 122. As the soft material, a thermosetting polyurethane resin, a silicone resin, or the like having translucency can be used. The soft material may also contain a photocatalyst such as titanium dioxide (TiO2). The locking part 112 is a protruding part that protrudes in a radial direction from a portion of the side wall of the cover body 111 facing each other across the central axis J1 of the cover body 111, extends along the longitudinal direction of the cover body 111, and can be fitted into the groove 122a of the side piece 122.

[0015] The cover 11 can change the distance between the cover 11 and the plurality of light-emitting units 22 by changing the grooves 122a into which the locking portions 112 are fitted. As shown in FIG. 2A, when the two locking portions 112 are fitted into the grooves 122a on the +Z direction side of the side pieces 122, the shortest distance between the cover 11 and the light-emitting units 22 is set to a distance H1. On the other hand, as shown in FIG. 2B, when the two locking portions 112 are fitted into the grooves 122a on the -Z direction side of the side pieces 122, the shortest distance between the cover 11 and the light-emitting units 22 is set to a distance H2 that is shorter than the distance H1. In this way, by changing the distance between the cover 11 and the light-emitting units 22, the light distribution characteristics of the light emitted from the cover 11 can be changed.

[0016] As described above, according to the lighting device 1 according to the present embodiment, two grooves 122a extending along the longitudinal direction of the side pieces are formed on the opposing surfaces of each side piece 122 of the main body 12. In addition, the cover 11 has a locking portion 112 that locks the cover 11 to the main body 12 when the cover 11 is fitted into the groove 122a. This allows the color or light distribution characteristics of the light emitted from the lighting device 1 to be changed simply by changing the type of the cover 11 or the locking position to the main body 12, thereby reducing the number of parts to be replaced when changing the color or light distribution characteristics of the light emitted from the lighting device 1 in response to a change in the use of the lighting device 1. In addition, even when changing the color or light distribution characteristics of the light emitted from the lighting device 1, it is not necessary to attach or detach the circuit board 21, so damage to the circuit board 21 when attaching or detaching the circuit board 21 can be suppressed.

[0017] In addition, two grooves 122a arranged in parallel in the Z-axis direction are formed in each of the pair of side pieces 122 of the main body 12 according to this embodiment. The cover 11 has a cover main body 111 formed in a long cylindrical shape and locking parts 112 that protrude in a radial direction from opposing parts of the side wall of the cover main body 111 across the central axis J1 of the cover main body 111. This allows the cover 11 to change the distance between the cover 11 and the multiple light emitting parts 22 by changing the groove 122a into which the locking parts 112 are fitted, thereby changing the incidence angle of a part of the light emitted from the light emitting parts 22 and incident on the cover main body 111. Therefore, the light distribution characteristics of the light emitted from the cover 11 can be changed relatively easily.

[0018] (Embodiment 2) The lighting device 2001 according to this embodiment differs from the first embodiment in that it has a cover body having a first section which is a long rectangular plate and whose width in the short direction is longer than the distance between a pair of side pieces, and a long second section which is located on the main section side of the first section and fitted between the pair of side pieces when the cover is engaged with the main body. Here, the locking section protrudes from an end of the second section opposite to the first section side toward the pair of side pieces when the cover is engaged with the main body, and is fitted into a groove.

[0019] As shown in FIG. 3, the lighting device 2001 according to the present embodiment includes a circuit board 21, a plurality of light-emitting units 22, a main body 2012, and a cover 2011. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals as those in FIG. 1. The main body 2012, like the main body 12 described in the first embodiment, has a long rectangular plate-like main piece 121 and a pair of long rectangular plate-like side pieces 2122 extending from both ends in the short direction of the main piece 121, i.e., in the X-axis direction, toward the +Z direction. At the end of each of the pair of side pieces 2122 on the +Z direction side, a groove 2122a is formed on the opposing surfaces, extending along the longitudinal direction of the side piece 2122 and along the Z-axis direction.

[0020] The cover 2011 is disposed so as to cover the entire +Z direction side of the circuit board 21, similarly to the cover 11 described in the first embodiment. The cover 2011 has a cover body 2111 and a locking portion 2112, and the cover body 2111 has a first portion 2111a having a long rectangular plate shape and a long second portion 2111b. As shown in FIG. 4(A), the width of the first portion 2111a in the short direction, i.e., in the X-axis direction, is longer than the distance between the pair of side pieces 2122. The second portion 2111b is located on the main piece 121 side of the first portion 2111a, i.e., on the -Z direction side, in a state in which the cover 2011 is locked to the main body portion 2012, and is fitted between the pair of side pieces 2122. The cover 2011 is made of a soft material that is translucent and has a lower rigidity than the main body portion 2012. As the soft material, a thermosetting polyurethane resin, a silicone resin, or the like having translucency can be adopted. The soft material may also contain a photocatalyst such as titanium dioxide (TiO2). A groove 2111c is formed on the +Z direction side of the second portion 2111b. This allows the locking portion 2112 to bend easily in a direction approaching the first portion 2111a. The locking portion 2112 is formed integrally with the cover main body 2111 and locks the cover main body 2111 to the main body portion 2012 in a state where it is fitted into the groove 2122a of the side piece 2122.

[0021] Here, a method of mounting the cover 2011 to the main body 2012 will be described. First, the cover 2011 is placed on the +Z direction side of the main body 2012. At this time, the locking portions 2112 of the cover 2011 are placed on the +Z direction ends of the pair of side pieces 2122 of the main body 2012. Next, as shown by the arrow AR1 in FIG. 4B, the cover 2011 is pushed in the -Z direction. At this time, the locking portions 2112 are bent in the +Z direction, so that the second portions 2111b of the cover main body 2111 are pushed inward of the pair of side pieces 2122 of the main body 2012. When the cover 2011 is pushed in until the tip of the locking portion 2112 is positioned opposite the groove 2122a of the side piece 2122, the locking portion 2112 returns to its original state due to its restoring force, and the locking portion 2112 becomes engaged with the groove 2122a, as shown in FIG. 4(A).

[0022] As described above, according to the lighting device 2001 of this embodiment, the cover 2011 can be engaged with the main body part 2012 simply by pushing the cover 2011 into the inside of the pair of side pieces 2122 of the main body part 2012. Therefore, the cover 2011 can be attached to and detached from the main body part 2012 relatively easily.

[0023] (Embodiment 3) The lighting device according to the present embodiment differs from the first and second embodiments in that it includes a plurality of main body parts described in the second embodiment, and a connecting member that connects one end portion in the longitudinal direction of two of the plurality of main body parts. Also, the lighting device according to the present embodiment includes one long cover arranged so as to cover the opposite side to the main one side of all the circuit boards fixed to each of the plurality of main body parts.

[0024] 5(A) and (B), the lighting device 7001 according to the present embodiment includes two circuit boards 21, a plurality of light emitting units 22 mounted on each of the two circuit boards 21, two main body parts 2012, two covers 2011, and two connecting members 7004. In addition, in FIG. 5(A) and (B), the same configurations as those in the second embodiment are denoted by the same reference numerals as in FIG. 3. In addition, a connector 51 electrically connected to a power source (not shown) for supplying power to the circuit boards 21 is connected to the other end of each of the two main body parts 2012 opposite to the one end connected to the connecting member 7004 via a conductive wire 52.

[0025] As shown in Fig. 6(A), each of the two connecting members 7004 has a plate-like main portion 7041 that is trapezoidal in plan view, side walls 7421 and 7422 that extend in the thickness direction of the main portion 7041 from two parallel sides of the main portion 7041, and a cylindrical pin 7043 for fixing the connecting member 7004 to the body portion 2012. The main portion 7041 is trapezoidal in plan view, consisting of two parallel sides, a side perpendicular to the two sides, and a side inclined with respect to the two sides, and the pin 7043 is erected on a side surface 7041b corresponding to the side perpendicular to the two sides. In addition, a semicircular cutout portion 7041a in plan view is formed on a side surface 7041c corresponding to the side inclined with respect to the two sides of the main portion 7041. Grooves 7421a, 7422a extending parallel to the main portion 7041 are formed on the ends of the opposing surfaces of the side walls 7421, 7422 opposite to the main portion 7041. As shown in Fig. 6(B), the two connecting members 7004 are arranged in a state where the side surfaces 7041c corresponding to the sides inclined with respect to the above-mentioned two sides of the main portion 7041 are in surface contact with each other, and the pins 7043 are fitted between the two magnet holders 123 of the main body 2012. The ends of the cover 2011 are fixed to the connecting member 7004 with the locking portions 2112 of the ends fitted into the grooves 7421a, 7422a of the side walls 7421, 7422.

[0026] As described above, according to the lighting device 7001 of this embodiment, a curved linear lighting device 7001 can be realized by connecting a plurality of main bodies 2012 via connecting members 7004. Therefore, the variety of shapes of the lighting device 7001 can be increased.

[0027] Although the embodiments of the present invention have been described above, the present invention is not limited to the configuration of each of the above-mentioned embodiments. For example, as in the lighting device 3001 shown in FIG. 7(A), the cover body 3111 may have a first portion 3111a having a long rectangular plate shape and a second portion 3111b having a long shape, and the first portion 3111a and the second portion 3111b may have light-transmitting portions 3111a2 and 3111b2 that transmit light emitted from the plurality of light-emitting portions 22, respectively, and light-shielding portions 3111a1 and 3111b1 that are arranged in portions other than the light-transmitting portions 3111a2 and 3111b2 in the first portion 3111a and the second portion 3111b, respectively, and that shield the light emitted from the plurality of light-emitting portions 22. In FIG. 7(A), the same reference numerals as those in FIG. 4(A) are used for the same configuration as in the second embodiment. Here, the light-transmitting portions 3111a2 and 3111b2 are formed continuously and integrally, and are exposed on the +Z direction side and the -Z direction side of the cover main body 3111. Moreover, the light-transmitting portions 3111a2 and 3111b2 are each narrower than the width of the cover main body 3111 in the arrangement direction of the pair of side walls 2122, i.e., in the X-axis direction, in a state in which the cover 3011 is engaged with the main body 2012. Moreover, the cover main body 3111 can be produced by a two-color extrusion molding method using a soft material that transmits light emitted from the light-emitting portion 22 and a soft material that blocks light emitted from the light-emitting portion 22.

[0028] According to this configuration, the width of the light emitting portion of the cover 3011 can be made narrower than the width of the circuit board 21, thereby realizing a linear light source narrower than the width of the circuit board 21, thereby increasing the variety of uses of the lighting device 3001.

[0029] In the second embodiment, for example, as in the lighting device 4001 shown in FIG. 7(B), only the first portion 4111a of the cover body 4111 may have a light transmitting portion 4111a2 that transmits light emitted from the plurality of light emitting units 22, and a light blocking portion 4111a1 that blocks the light emitted from the plurality of light emitting units 22. In FIG. 7(B), the same components as those in the second embodiment are denoted by the same reference numerals as those in FIG. 4(A). As shown in FIG. 7(B), the light blocking portion 4111a1 is disposed so as to cover the +Z direction side and the -X direction side of the light transmitting portion 4111a2. As a result, the light emitted from the light emitting unit 22 is emitted only in the +X direction side. In addition, the reflective surface 4111a3 in contact with the light-transmitting portion 4111a2 of the light-shielding portion 4111a1 and reflecting the light emitted from the light-emitting portion 22 is curved, and reflects the light emitted from the light-emitting portion 22 to concentrate it on the +X direction side of the lighting device 4001. This cover main body 4111 can also be manufactured by a two-color extrusion molding method using a soft material that transmits the light emitted from the light-emitting portion 22 and a soft material that blocks the light emitted from the light-emitting portion 22.

[0030] Alternatively, as in the lighting device 5001 shown in FIG. 8, the first part 5111a of the cover body 5111 may have a triangular prism-shaped light-shielding part 5111a1 that blocks light emitted from the plurality of light-emitting parts 22, and a light-transmitting part 5111a2 that transmits light emitted from the plurality of light-emitting parts 22. In FIG. 8, the same components as those in the second embodiment are denoted by the same reference numerals as those in FIG. 4(A). As shown in FIG. 8, the light-shielding part 5111a1 faces the light-emitting part 22 on the -Z direction side, and is disposed in such a position that the apex of the cross section faces the -Z direction side. As a result, the light emitted from the light-emitting part 22 is reflected by the side wall 5111a3 of the light-shielding part 5111a1 in the +Z direction, and is emitted by the side wall 5111a4 in the -X direction. This cover body 5111 can also be produced by two-color extrusion molding using a soft material that transmits the light emitted from the light-emitting unit 22 and a soft material that blocks the light emitted from the light-emitting unit 22.

[0031] In the second embodiment, an example in which the first portion 2111a of the cover body 2111 is a rectangular plate has been described, but the shape of the first portion is not limited thereto. For example, as in the illumination device 6001 shown in FIG. 9(A), the cover body 6111 of the cover 6011 may have the first portion 6111a in a rectangular parallelepiped shape. Alternatively, as in the illumination device 11001 shown in FIG. 9(B), the cover body 11111 of the cover 11011 may have the first portion 11111a in a columnar shape with a semicircular cross section. Here, the diameter of the first portion 11111a is longer than the distance between a pair of side pieces 2122 of the main body 2012.

[0032] In the third embodiment, an example has been described in which two main bodies 2012 are connected by two connecting members 7004. However, this is not limited thereto, and for example, as in a lighting device 8001 shown in Figures 10(A) and (B), two main bodies 2012 may be connected by one connecting member 8004. In Figures 10(A) and (B), the same components as those in the third embodiment are denoted by the same reference numerals as those in Figures 5(A) and (B).

[0033] 11, the connecting member 8004 has a rectangular plate-shaped main portion 8041, a side wall 8421 that is L-shaped in plan view and extends from two adjacent sides of the main portion 8041 in the thickness direction of the main portion 8041, a side wall 8422 that is L-shaped in plan view and extends in the thickness direction of the main portion 8041 from one corner that faces the two sides along which the side wall 8421 extends, and two cylindrical pins 8043 for fixing the connecting member 8004 to the two main body portions 2012. The two pins 8043 are erected on two side surfaces 8041b corresponding to the two sides other than the above-mentioned two sides. In addition, a through hole 8041a that is circular in plan view and penetrates the main portion 8041 in the thickness direction is formed in the center of the main portion 8041. Grooves 8421a, 8422a extending parallel to the main portion 8041 are formed on the ends of the opposing surfaces of the side walls 8421, 8422 opposite to the main portion 8041. The connecting member 8004 is disposed with the pins 8043 fitted between the two magnet holders 123 of the main body 2012. The end of the cover 2011 is fixed to the connecting member 8004 with the locking portions 2112 of the end fitted into the grooves 8421a, 8422a of the side walls 8421, 8422.

[0034] 12(A) and 12(B), a configuration may be used in which two main bodies 2012 are connected by a connecting member 10004 having a generally sector-shaped shape in a plan view. Here, the connecting member 10004 connects the two main bodies 2012 such that the longitudinal directions of the two main bodies 2012 intersect with each other and the thickness directions of the main pieces 121 of the two main bodies 2012 intersect with each other.

[0035] As shown in Fig. 13, the connecting member 10004 has a main portion 10041 having a cross section of a substantially sector-shaped shape obtained by dividing a circle into four, two side walls 10042 of a substantially sector-shaped shape in a plan view extending from both ends in the width direction of the curved surface of the main portion 10041 in a direction perpendicular to the curved surface, and two cylindrical pins 10043 for fixing the connecting member 10004 to the two main portions 2012. The two pins 10043 are erected on two side surfaces 10041a other than the curved surface described above. A groove 10042a extending along the end is formed at each end of the two side walls 10042 opposite to the main portion 10041 side facing each other. The connecting member 10004 is arranged in a state in which the pins 10043 are fitted between the two magnet holders 123 of the main portion 2012. Moreover, the end of the cover 2011 is fixed to the connecting member 10004 with the locking portion 2112 at the end being fitted into the groove 10042 a of the side wall 10042 .

[0036] In the third embodiment, for example, as in the illumination device 9001 shown in Fig. 14(A), a connecting member 9004 that connects two main bodies 2012 in a state in which the angle between the longitudinal directions of the two main bodies 2012 can be changed may be provided. In Figs. 14(A) and (B), the same components as those in the third embodiment are denoted by the same reference numerals as those in Figs. 5(A) and (B).

[0037] 14(B), the connecting member 9004 has a first sub-connecting member 9041 and a second sub-connecting member 9042 pivotally attached to the first sub-connecting member 9041 so as to be rotatable. As shown in Fig. 15(A), the first sub-connecting member 9041 has a long plate-shaped main body portion 9411 and two extension pieces 9412 extending in the same direction along the thickness direction of the main body portion 9411 from both ends in the short side direction of the main body portion 9411. The first sub-connecting member 9041 has two extension pieces 9414 extending from both ends in the short direction of one end of the longitudinal direction of the main body 9411 along the longitudinal direction of the main body 9411, and one cylindrical pin 9413 protruding in the opposite direction to the extension direction of the extension piece 9412 from the main body 9411 for fixing the first sub-connecting member 9041 to the main body 2012. Here, a through hole 9412a that is circular in plan view and penetrates the extension piece 9412 in the thickness direction is formed at each of the tip portions of the two extension pieces 9412. Also, a hook portion 9414a that protrudes in a direction approaching each other is provided at each of the tip portions of the two extension pieces 9414.

[0038] 15B, the second sub-connecting member 9042 has a long plate-shaped main body 9421 and a protruding portion 9422 protruding from the center of the main body 9421 in the short-side direction in the thickness direction of the main body 9411. The second sub-connecting member 9042 also has two extending pieces 9424 extending from both ends of one end of the main body 9421 in the short-side direction along the longitudinal direction of the main body 9421, and one cylindrical pin 9423 protruding from the main body 9421 in the opposite direction to the protruding portion 9422 protruding therefrom for fixing the second sub-connecting member 9042 to the main body 2012. Here, the tip of the protruding portion 9422 is provided with two cylindrical projections 9422a that protrude along the short-side direction of the main body 9421 and are fitted into the through-holes 9412a of the first sub-connecting member 9041. In addition, hook portions 9424a are provided at the tips of the two extension pieces 9424 so as to protrude toward each other. As shown in FIG. 15C, the second sub-connecting member 9042 is pivotally attached to the first sub-connecting member 9041 with the two protrusions 9422a fitted into the through holes 9412a of the two extension pieces 9412 of the first sub-connecting member 9041. The connecting member 9004 is disposed with the pins 9043 fitted between the two magnet holders 123 of the main body 2012. The end of the cover 2011 is fixed to the connecting member 9004 with the locking portion 2112 of the end locked by the hook portion 9414a of the first sub-connecting member 9041 and the hook portion 9424a of the second sub-connecting member 9042.

[0039] In each embodiment, an example has been described in which the light-emitting element is composed of an LED element, but the type of light-emitting element is not limited to this and may be composed of other inorganic EL elements or organic EL elements.

[0040] Although the embodiments and modifications of the present invention have been described above, the present invention is not limited to these. The present invention includes appropriate combinations of the embodiments and modifications, and appropriate modifications thereto. [Industrial Applicability]

[0041] The lighting device of the present invention is suitable for use as interior lighting arranged along the corridors of a building. [Explanation of symbols]

[0042] 1,2001,3001,4001,5001,6001,7001,8001,9001,10001,11001: lighting device, 11,2011,3011,4011,5011,6011: cover, 3: magnet, 12,2012: main body, 21: circuit board, 22: light emitting part, 23: current limiting element, 111,2111,3111,4111,5111,6111,11111: cover main body, 112,2112: locking part , 121: Main piece, 122, 2122: Side piece, 122a, 2111c, 2122a: Groove, 123: Magnet holding part, 2111a, 3111a, 4111a, 5111a, 6111a, 11111a: First part, 3 111a1, 4111a1, 5111a1: Light shielding part, 3111a2, 4111a2, 5111a2: Transparent part, 2111b: Second part, 7004, 8004, 9004, 10004: Connecting member, J1: Central axis

Claims

[Claim 1] A long circuit board, A plurality of light emitting units mounted in a row on the circuit board; a main body portion having a long plate-like main piece and a pair of side pieces each of which is also long plate-like and extends from both ends in a short direction of the main piece to one surface side along a thickness direction of the main piece, the circuit board being fixed to the one surface side of the main piece; a cover disposed to entirely cover the opposite side of the circuit board from the main side, The pair of side pieces each have an equal number of grooves formed on opposing surfaces thereof, the grooves extending along the longitudinal direction of the pair of side pieces; The cover is A cover body formed in an elongated shape from a soft material having translucency and lower rigidity than the main body portion; a locking portion that is formed integrally with the cover body and that locks the cover to the body portion when the cover is fitted into the groove; Each of the pair of side pieces is formed with a plurality of grooves arranged in parallel in the thickness direction of the main piece, The cover body is formed in an elongated cylindrical shape, The locking portions protrude radially from opposing portions of the side wall of the cover body across the central axis of the cover body, extend along the longitudinal direction of the cover body, and are engageable with the plurality of grooves. The locking portions are arranged such that the shapes of both sides of an imaginary plane that includes the central axis of the cover body and intersects with the two locking portions are symmetrical. Lighting equipment.

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