JP7624736B2 - Lighting equipment - Google Patents

Description

The present invention relates to a lighting device.

An LED lighting device has been proposed that includes a long LED lighting device body and a long inner frame formed from a lightweight metal material such as aluminum in which the LED lighting device body is housed, the LED lighting device body having a linear LED light-emitting member in which multiple LED elements are arranged on a long LED board, and an LED containing member that is manufactured by extrusion molding of silicone resin or the like and contains the LED light-emitting member (see, for example, Patent Document 1).

Patent No. 7032506

However, with such an LED lighting device, when the application or location of use changes, it may be necessary 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 component is embedded in the LED-containing component, when changing the color or light distribution characteristics of the emitted light, it is necessary to change the entire LED lighting device body. This results in a large number of parts that need to be replaced when changing the color or light distribution characteristics of the emitted light.

The present invention has been made in consideration of the above-mentioned reasons, and aims 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.

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 side along a thickness direction of the main piece, the circuit board being fixed to the one 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 away from each other from opposing positions on the side wall of the cover body across the central axis of the cover body and extend along the longitudinal direction of the cover body, are capable of engaging with the multiple grooves, and are arranged so that the shapes on both sides of an imaginary plane that includes the central axis of the cover body and intersects the two locking portions are symmetrical .

According to the present invention, a groove is formed on each of the pair of side pieces of the main body, extending along the longitudinal direction of the side piece, 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 allows the color or light distribution characteristics of the light emitted from the lighting device to be changed 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.

1 is a perspective view of a lighting device according to a first embodiment of the present invention. 4A is a front view of the lighting device according to the first embodiment, and FIG. 4B is a front view of the lighting device according to the first embodiment in another state. FIG. 11 is a perspective view of a lighting device according to a second embodiment. 10A is a front view of an illumination device according to a second embodiment, and FIG. 10B 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. 11A and 11B show a lighting device according to a third embodiment, in which FIG. 11A is a perspective view and FIG. 11B is a perspective view showing a state in which a cover of a portion surrounded by a dashed line in FIG. 13A and 13B show a connecting member according to a third embodiment, in which FIG. 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. FIG. 13 is a front view of a lighting device according to a modified example. 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. 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. FIG. 13 is a perspective view of a connecting member according to a modified example. 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. FIG. 13 is a perspective view of a connecting member according to a modified example. 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. 1A is a perspective view showing a first sub-connecting member according to a modified example, FIG. 1B is a perspective view showing a second sub-connecting member according to a modified example, and FIG. 1C is a perspective view of a connecting member.

(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.

As shown in FIG. 1, the lighting device 1 according to this embodiment includes a long, plate-shaped 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 to limit the current supplied to the light-emitting units 22, a conductive wire (not shown) for supplying 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.

The circuit board 21 is composed of, for example, an FPC (Flexible Printed Circuits), and has a conductor pattern (not shown) formed thereon. Electrodes (not shown) that are 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 multiple circuit boards 21 are arranged in parallel along their longitudinal directions, two adjacent circuit boards 21 are electrically connected to each other via electrodes.

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 used. The wavelength conversion member is formed of, for example, a transparent silicone resin containing a pigment 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 current flows from a DC power source through the conductive wire and conductive pattern to the light-emitting element, the light-emitting element lights up.

The main body 12 is long and 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 from both ends in the short direction of the main piece 121, i.e., in the X-axis direction, to one 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 arranged approximately parallel to each other 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 in the -Z direction, and hold a long cylindrical magnet 3. This allows the lighting device 1 to be attracted and fixed to a member made of a magnetic material such as iron or a nickel alloy.

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 an elongated cylindrical shape from a soft material that is translucent and has a lower rigidity than the main body 12, and a locking portion 112 that is formed integrally with the cover body 111 and locks the cover body 111 to the main body 12 in a state where it is fitted into a groove 122a of the side piece 122. As the soft material, a thermosetting polyurethane resin, silicone resin, or the like having translucency can be used. The soft material may also contain a photocatalyst such as titanium dioxide (TiO ₂ ). The locking portions 112 are protruding portions that protrude radially away from each other from opposing positions on the side wall of the cover body 111 across the central axis J1 of the cover body 111 and extend along the longitudinal direction of the cover body 111, and are capable of engaging with the grooves 122a of the side pieces 122.

The cover 11 can change the distance between the cover 11 and the multiple light-emitting units 22 by changing the grooves 122a into which the locking portions 112 are fitted. As shown in FIG. 2(A), when the two locking portions 112 are each 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 distance H1. On the other hand, as shown in FIG. 2(B), when the two locking portions 112 are each 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 distance H2, which is shorter than 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.

As described above, according to the lighting device 1 of this 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 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, there is no need 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.

In addition, two grooves 122a are formed in parallel in the Z-axis direction in each of the pair of side pieces 122 of the main body 12 according to this embodiment. The cover 11 has a cover 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 body 111 across the central axis J1 of the cover 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 fit, and therefore allows the incident angle of a portion of the light emitted from the light-emitting parts 22 and incident on the cover body 111 to be changed. Therefore, the light distribution characteristics of the light emitted from the cover 11 can be changed relatively easily.

(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 has a width in the short direction 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 engagement section protrudes from an end of the second section opposite to the first section side toward the pair of side pieces and is fitted into a groove when the cover is engaged with the main body.

As shown in FIG. 3, the lighting device 2001 according to this 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-shaped main piece 121 and a pair of long rectangular plate-shaped 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 +Z direction sides of the pair of side pieces 2122, 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.

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. 4A, 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. When the cover 2011 is locked to the main body portion 2012, the second portion 2111b is located on the main piece 121 side of the first portion 2111a, i.e., on the -Z direction side, 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 (TiO ₂ ). A groove 2111c is formed on the +Z direction side of the second portion 2111b. This makes it easier for the locking portion 2112 to bend in a direction approaching the first portion 2111a. The locking portion 2112 is formed integrally with the cover body 2111 and locks the cover body 2111 to the main body portion 2012 in a state where it is fitted into the groove 2122a of the side piece 2122.

Here, a method of attaching 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 portion 2112 of the cover 2011 is placed on the end portion on the +Z direction side of a pair of side pieces 2122 of the main body 2012. Next, as shown by the arrow AR1 in Figure 4 (B) , the cover 2011 is pushed in the -Z direction. At this time, the locking portion 2112 bends in the +Z direction, so that the second portion 2111b of the cover main body 2111 is 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 fits into the groove 2122a as shown in FIG. 4(A).

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

(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. In addition, the lighting device according to the present embodiment includes one long cover arranged so as to cover the side opposite to the main one side of all of the circuit boards fixed to each of the plurality of main body parts.

As shown in Figs. 5(A) and (B), the lighting device 7001 according to this 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 Figs. 5(A) and (B), the same components as those in the second embodiment are denoted by the same reference numerals as those 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.

As shown in FIG. 6A, each of the two connecting members 7004 has a plate-shaped 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 main 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 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 part 7041 are formed on the ends of the opposing surfaces of the side walls 7421, 7422 opposite the main part 7041. As shown in FIG. 6B, 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 part 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 end of the cover 2011 is fixed to the connecting member 7004 with the locking parts 2112 of the end fitted into the grooves 7421a, 7422a of the side walls 7421, 7422.

As described above, according to the lighting device 7001 of this embodiment, a curved linear lighting device 7001 can be realized by connecting multiple main body parts 2012 via connecting members 7004. Therefore, the variety of shapes of the lighting device 7001 can be increased.

Although each embodiment of the present invention has 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 has a first portion 3111a having a long rectangular plate shape and a long second portion 3111b, and the first portion 3111a and the second portion 3111b each have a light-transmitting portion 3111a2, 3111b2 that has light-transmittance and transmits light emitted from the multiple light-emitting units 22, and a light-shielding portion 3111a1, 3111b1 that is arranged in a portion other than the light-transmitting portion 3111a2, 3111b2 in the first portion 3111a and the second portion 3111b, respectively, and shields the light emitted from the multiple light-emitting units 22. In FIG. 7(A), the same reference numerals as 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 as a continuous integral unit and are exposed on the +Z direction side and the -Z direction side of the cover body 3111. Furthermore, the light-transmitting portions 3111a2 and 3111b2 are each narrower than the width of the cover body 3111 in the arrangement direction of the pair of side walls 2122, i.e., in the X-axis direction, when the cover 3011 is engaged with the body portion 2012. Furthermore, the cover 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.

With 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, making it possible to realize a linear light source narrower than the width of the circuit board 21, thereby increasing the variety of uses for the lighting device 3001.

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 multiple light-emitting units 22, and a light-shielding portion 4111a1 that blocks the light emitted from the multiple light-emitting units 22. In FIG. 7(B), the same components as those in the second embodiment are given the same reference numerals as in FIG. 4(A). As shown in FIG. 7(B), the light-shielding 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. In addition, the reflective surface 4111a3 of the light-shielding portion 4111a1 that contacts the light-transmitting portion 4111a2 and reflects the light emitted from the light-emitting portion 22 is curved, and reflects the light emitted from the light-emitting portion 22 and focuses it on the +X direction side of the lighting device 4001. This cover 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.

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 multiple light-emitting parts 22, and a light-transmitting part 5111a2 that transmits light emitted from the multiple light-emitting parts 22. In FIG. 8, the same components as those in the second embodiment are given 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.

In the second embodiment, an example has been described in which the first portion 2111a of the cover body 2111 is a rectangular plate, but the shape of the first portion is not limited to this. For example, as in the lighting device 6001 shown in FIG. 9(A), the cover body 6111 of the cover 6011 may have a rectangular parallelepiped first portion 6111a. Alternatively, as in the lighting device 11001 shown in FIG. 9(B), the cover body 11111 of the cover 11011 may have a columnar first portion 11111a 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 portion 2012.

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

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 two sides mentioned above. 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 the main portion 8041. The connecting member 8004 is arranged 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.

Alternatively, as in the lighting device 10001 shown in Figures 12(A) and (B), the two main body parts 2012 may be connected by a connecting member 10004 having a generally sector-shaped shape in plan view. Here, the connecting member 10004 connects the two main body parts 2012 such that the longitudinal directions of the two main body parts 2012 intersect with each other and the thickness directions of the main pieces 121 of the two main body parts 2012 intersect with each other.

13, the connecting member 10004 has a main portion 10041 having a cross section of a substantially sector-shaped circle divided into four, two side walls 10042 of a substantially sector-shaped shape in a plan view extending from both ends of the curved surface of the main portion 10041 in the width direction in a direction perpendicular to the curved surface, and two cylindrical pins 10043 for fixing the connecting member 10004 to the two main body 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 portion is formed on each end portion 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 inserted between the two magnet holding portions 123 of the main body portion 2012. In addition, the end of the cover 2011 is fixed to the connecting member 10004 with the locking portion 2112 at that end fitted into the groove 10042a in the side wall 10042.

In the third embodiment, for example, as in the lighting device 9001 shown in FIG. 14(A), a connecting member 9004 may be provided 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. Note that in FIGS. 14(A) and (B), the same reference numerals as in FIGS. 5(A) and (B) are used for configurations similar to those in the third embodiment.

As shown in Fig. 14B, 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. As shown in Fig. 15A, the first sub-connecting member 9041 has a long plate-shaped main body 9411 and two extension pieces 9412 extending in the same direction along the thickness direction of the main body 9411 from both ends in the short direction of the main body 9411. The first sub-connecting member 9041 has two extension pieces 9414 extending from both ends of the short side 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 direction in which the extension piece 9412 extends from the main body 9411 to fix 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 thickness direction of the extension piece 9412 is formed at each tip of the two extension pieces 9412. Also, a hook portion 9414a that protrudes in a direction approaching each other is provided at each tip of the two extension pieces 9414.

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 direction in the thickness direction of the main body 9411. The second sub-connecting member 9042 also has two extending pieces 9424 extending along the longitudinal direction of the main body 9421 from both ends in the short direction of one end of the main body 9421, and one cylindrical pin 9423 protruding in the opposite direction to the protruding portion 9422 protruding from the main body 9421 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 protrusions 9422a that protrude along the short direction of the main body 9421 and are fitted into the through holes 9412a of the first sub-connecting member 9041. In addition, the tips of the two extension pieces 9424 are provided with hook portions 9424a that protrude in a direction approaching 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 arranged 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.

In each embodiment, an example is 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 the light-emitting element may be composed of other inorganic EL elements or organic EL elements.

Although the above describes the various embodiments and modifications of the present invention, the present invention is not limited to these. The present invention includes suitable combinations of the embodiments and modifications, and those to which suitable modifications have been made.

The lighting device of the present invention is suitable for use as interior lighting along the corridors of a building.

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 unit, 23: current-limiting element, 111, 2111, 3111, 4111, 5111, 6111, 11111: cover body, 112, 2112: locking portion , 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 (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 side along a thickness direction of the main piece, the circuit board being fixed to the one 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.

Images