JP6509420B2 - Lighting device - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a luminaire which can be attached to and detached from a mounting member via a pair of hooking blades.

2. Description of the Related Art Conventionally, as a lighting device mounted on a ceiling or the like, there are a direct mounting type ceiling light and a hanging type lighting device. These lighting devices have a hooking ceiling 901 (see FIG. 14) provided on a ceiling surface and a pair of hooking blades inserted into a pair of insertion holes 903 of a hooking rosette (for example, Patent Document 1).
The lighting device described in Patent Document 1 includes an adapter in which a lighting control circuit board which receives and operates by being received by a pair of hooking blades connected to a hooking rosette, and the adapter is inserted into a hole and locked. It has a body that lights the lamp through the lamp socket at the output. The adapter is provided with a movable lock pin biased upward to be exposed on the upper surface of the case and locked in the arc hole (insertion hole 903) on the lower surface of the hook rosette, and acts in a direction to push down the lock pin. The release operation unit is exposed on the side of the case, the output connector of the lighting control circuit board is exposed on the side of the case so as to be located below the release operation, and a connector for feeding power to the socket is connected to the output connector doing.
With this configuration, if the connector connected to the output connector is not removed, the release operation unit can not be substantially pushed in, so that there is no risk of the adapter being inadvertently removed from the hooked rosette during normal use.

JP 2005-235456 A

In the above configuration, there is no possibility that the hooking blade is inadvertently removed from the hooking rosette or hooking ceiling, but there is a problem that the construction is complicated.
SUMMARY OF THE INVENTION In view of the above problems, the present invention is to provide a lighting device capable of preventing a hook blade from being removed carelessly with a simple structure.

  The present invention comprises an LED element as a light source, an LED substrate on which the LED element is mounted, a base member on which the LED substrate is disposed, and a mounting portion for mounting on a mounting member, the base member The mounting portion has an opening to be fitted, the mounting portion has a step on the peripheral edge side, and a portion inside the step closes the opening and a portion outside the step abuts on a peripheral portion of the opening It is being fixed to the said base member in the state.

  According to the above configuration, since the two fixing claws are provided, it is possible to prevent the hooking blade from being removed carelessly.

It is an appearance perspective view of a lighting installation of a 1st embodiment. It is sectional drawing of the illuminating device of 1st Embodiment. It is an exploded perspective view of a lighting installation of a 1st embodiment. It is a perspective view of the state which removed the translucent cover of the illuminating device of 1st Embodiment. It is the figure which looked at the state which removed the protective cover of the apparatus main body of 1st Embodiment from the front. It is the perspective view which looked at the attaching part used for 1st Embodiment from the back. It is the perspective view which looked at the attaching part used for 1st Embodiment from the front. It is a perspective view of a lock member used for a 1st embodiment, (a) is a perspective view in a lock state of a lock member, (b) is a perspective view in a release state of a lock member. It is the perspective view which looked at the plate-shaped member used for 1st Embodiment from back. It is the figure which looked at the plate-shaped member used for 1st Embodiment from back. It is the perspective view which looked at the attaching part used for 2nd Embodiment from back. It is a perspective view of one lock member used for a 2nd embodiment, (a) is a perspective view in the lock state of a lock member, (b) is a perspective view in the release state of a lock member. It is a perspective view of the other lock member used for a 2nd embodiment, (a) is a perspective view in the lock state of a lock member, (b) is a perspective view in the release state of a lock member. It is the perspective view which looked at hook ceiling from the front.

<Overview>
An illumination device according to one aspect of the present invention includes an LED element as a light source, an LED substrate on which the LED element is mounted, a base member on which the LED substrate is disposed, and a mounting portion for mounting on a mounting member The base member has an opening in which the mounting portion is fitted, and the mounting portion has a step on the peripheral edge side, and a portion inside the step closes the opening and a portion outside the step is the opening. It is being fixed to the said base member in the state contact | abutted with the peripheral part of opening.
In the lighting device according to another aspect, the mounting portion includes a pair of hooking blades that are hooked to the mounting member.
In the lighting device according to another aspect, the inside portion of the mounting portion is made of a transparent resin material.
In the lighting device according to another aspect, the mounting portion has a boss and a screw hole passing through the boss in the outer portion, and the mounting portion is mounted on the base member by a screw screwed into the screw hole. It is fixed.
The lighting device according to the specification maintains a hooking state of a pair of hooking blades that are insertably inserted and removed in a pair of insertion holes of a mounting member and hooked to a connection terminal, and a hooking state of the hooking blade in the insertion hole. In a lighting device having locking means, the locking means has two fixing claws which are advanced to the insertion hole when in the hooked state.
In the lighting device according to the specification, one of the fixed claws is provided for one of the hooking blades. This can further prevent the hook blade from being inadvertently removed.
In the lighting device according to the specification, the locked state is released by the operation of two or more operation units. This can improve the reliability of the lock function.
In the lighting device according to the specification, the locking unit is released from the hooked state by the operation of one operation unit. By this, it is possible to simultaneously release the hooked state.
Embodiment
Hereinafter, a lighting device which is one embodiment of the present invention will be described in detail with reference to the drawings. Here, a ceiling light will be described as an example of a lighting device. The “sealing light” referred to here is a lighting device provided with a pair of hooking blades, and is used as a hooking ceiling 901 (see FIG. 14) provided on a mounting member such as a ceiling or a wall or a mounting member such as a hooking rosette. A lighting device that is used with a pair of hooking blades attached.
In the following, for convenience, the ceiling light is attached to the ceiling, and the illumination light of the ceiling light is described as being emitted forward (floor side). For example, as a ceiling light attached to the attachment member of a ceiling, there are things used for each living room such as a living room, Japanese-style room, a bedroom, a children's room etc., a thing used for a corridor, a toilet, an entrance etc. . Moreover, there are some which were provided in the wall as a mounting member, and this invention is applicable also to such an illuminating device. The side from which light is emitted from the lighting device is referred to as the front side.

  As a mounting member, there are round hook sealing, square hook sealing, round full hook sealing, full round rosette, and the like. The mounting member not only has the function of attaching the sealing light, but also has the function of supplying commercial power to the pair of hooking blades.

1. Overall Configuration of Ceiling Light As shown in FIGS. 1 to 3, particularly FIG. 2, the ceiling light 1 is composed of an apparatus body 3 and a translucent cover 5 detachably mounted on the apparatus body 3. . The ceiling light 1 is attached to the attachment surface 4 such as a ceiling surface by attaching the translucent cover 5 to the device body 3 after the device body 3 is attached to the mounting member 2.
Here, for example, a hook sealing 901 as shown in FIG. 14 is used as the mounting member 2. The hooking ceiling 901 (member to be attached 2) has a pair of insertion holes 903 for hooking blades of the ceiling light 1 on the front side (floor side when installed on a ceiling). The pair of insertion holes 903 are provided in an arc shape along an imaginary circle whose diameter is the distance between the pair of hooking blades 47.
When the hooking blade 47 of the ceiling light 1 is inserted into the insertion hole 903 and rotated about the central axis passing through the center of the imaginary circle, the hooking sealing 901 internally has a connection terminal electrically connected to the hooking blade 47. Have. The connection terminal is connected to a commercial power supply.

2. Device Body The device body 3 mounts a light source unit 11 composed of a plurality of LEDs 21, a circuit unit 13 for lighting the light source unit 11, the light source unit 11 and the circuit unit 13 as shown in FIGS. And a mounting portion 17 for mounting the device itself on the mounting member 2. The mounting portion 17 has a pair of hooking blades 47.
The device body 3 may have a protective portion 19 that protects at least the light source portion 11. The protection unit 19 of the present embodiment protects the light source unit 11 and the circuit unit 13. The protection unit 19 also has a mounting function for detachably mounting the translucent cover 5.
Each part will be described below.

(1) Light Source Unit As shown in FIGS. 3 and 5, the light source unit 11 includes a plurality of LEDs 21 and a plurality of mounting boards 23 for mounting the plurality of LEDs 21. The plurality of LEDs 21 may be of one type having the same light color (for example, white, daylight white, daylight color, light bulb color, etc.), or may be of multiple types having different light colors. The mounting substrate 23 mounts a plurality of LEDs 21. The mounting position of the LED 21 may be regular or non-regular. The shape of regularity includes a straight line (including one line and plural lines), a zigzag, and an arc shape (including one line and plural lines).
The mounting substrate 23 has a wiring pattern for connecting a plurality of LEDs in a predetermined connection form. The predetermined connection form is serial connection, parallel connection, series-parallel connection, or the like. Note that the mounting substrate may be configured of one sheet.

(2) Circuit Unit As shown in FIGS. 3 and 5, the circuit unit 13 includes a plurality of electronic components 25 and 27 and circuit boards 29 and 31 for mounting the plurality of electronic components 25 and 27. Here, for convenience, reference numerals “25” and “27” are given to one electronic component for each circuit board 29 and 31. For example, a rectifier circuit, a smoothing circuit, and a voltage conversion circuit are configured by the plurality of electronic components 25 and 27. In FIG. 3, a part of the electronic component is described.
Here, there are two circuit boards 29 and 31. For example, the electronic component 25 constituting the lighting circuit is mounted on the first circuit board 29, and the electronic component 27 constituting the toning circuit or the light control circuit is mounted on the second circuit board 31.

(3) Mounting part The mounting part 15 is comprised by the base member 35, as shown to FIG. 3 and FIG. The base member 35 has a plate shape having an opening 37 at the center. The mounting portion 17 is fitted in the opening 37. The base member 35 has a circular external shape when viewed from the floor side, but the external shape may be, for example, another shape such as square or rectangular.
As shown in FIG. 3, the base member 35 has a light source unit mounting area 41 for mounting the light source unit 11 and a circuit section mounting area 43 for mounting the circuit unit 13 on the front surface. Here, the light source part mounting area 41 exists around the opening 37, and the circuit part mounting area 43 exists on the outer peripheral side thereof. The positional relationship between the light source mounting area 41 and the circuit mounting area 43 may be other than the above. Moreover, the circuit part mounting area may be provided on the back surface.

The light source unit 11 is mounted on the base member 35 by fixing the mounting substrate 23 to the light source unit mounting area 41. The mounting substrate 23 is fixed to the base member 35 by, for example, screwing means, locking means, fixing means, and the like. By mounting the mounting substrate 23 in the light source mounting area 41, the plurality of LEDs 21 are arranged in a ring shape surrounding the opening 37. Note that the mounting substrate may be mounted on the base member so as to be positioned in a matrix (including 1 row and 0 columns) as a whole when the plurality of LEDs 21 are viewed from the front side.
The circuit portion 13 is mounted on the base member 35 by fixing the circuit boards 29 and 31 to the circuit portion mounting area 43. The circuit boards 29 and 31 are fixed to the base member 35 by, for example, screwing means, locking means, fixing means, and the like.
The circuit boards 29 and 31 are arc-shaped, and the electronic components 25 and 27 are mounted along the arc. Thereby, the width of the circuit boards 29 and 31 (the dimension in the radial direction of the base member) can be reduced.

(4) Mounting portion The mounting portion 17 is a plate-like member 45 that closes the opening 37 of the base member 35 and is fixed to the periphery of the opening 37 as shown in FIGS. A pair of hooking blades 47 which are inserted into the two pair of insertion holes 903 and hooked to the connection terminal, and lock means 51 which locks (maintains) the hooking state of the pair of hooking blades 47. In addition, "locking" here means that a pair of hooking blade 47 is hooked and fixed to a connection terminal.

The plate member 45 has a shape corresponding to the opening 37 of the base member 35. Here, when viewed from the front side (see FIG. 6), it has a circular shape. The plate member 45 has a step 53 on the peripheral side. A central portion 55 on the inner side of the step 53 in the plate member 45 closes the opening 37 of the base member 35. The outer peripheral portion 57 outside the step 53 in the plate member 45 abuts on the peripheral portion 59 of the opening 37 of the base member 35 from the front side.
At least a central portion 55 of the plate-like member 45 is made of an insulating material that can be viewed from the front side to the back side. Here, the plate member 45 is made of a transparent insulating resin material. This makes it possible to visually recognize the insertion operation of the hooking blade 47 into the insertion hole 903. Further, since the plate-like member 45 is made of the insulating resin material, the insulation between the commercial power source and the mounting portion 17 and the insulation between the pair of hooking blades 47 can be secured.
As shown in FIG. 7, the outer peripheral portion 57 is fixed to the base member 35 using a screw hole 63 passing through a boss 61 projecting to the front side. Here, as shown in FIG. 1 and FIG. 4, the plate member 45 is fixed to the base member together with the guide member 65 that assists the insertion and fitting of the hooking blade 47 into the insertion hole 903.

As shown in FIG. 7, the plate member 45 has two ribs 67 and 69 formed on the outer peripheral edge and an inner side than the outer peripheral edge when viewed from the front side, and between the rib 67 and the rib 69 And a boss 71 for fixing the protective cover provided on the A screw hole 73 is formed in the boss 71.
The plate-like member 45 has a wiring groove 75 in which a wiring electrically connected to the pair of hooking blades 47 is disposed, as shown in FIG. The wiring groove 75 is formed to bulge from the rear side to the front side. The wiring grooves 75 extend in the radial direction.
As shown in FIG. 7, the plate-like member 45 has a gripping portion 77 to be gripped (to be gripped) by the worker when attaching the hooking blade 47 to the mounted member 2. The gripping portion 77 is constituted by a convex portion 79 which protrudes in a rectangular shape to the front side. The inside of the convex portion 79 is used to fix the hooking blade 47 and accommodate the locking means 51. The hooking blade 47 and the locking means 51 will be described later.

(5) Protective Unit The protective unit 19 is configured of a protective cover 81. The protective cover 81 has a semi-torus shape in which a torus shape formed by rotating the circle around a rotation axis located outside the circle is cut at a plane including the central axis of the circle. The central axis of the circle is an axis connecting the center of the circle when it is rotated.
The protective cover 81 is composed of two cover members 81A and 81B. In addition, in FIG. 3, the state combined integrally is shown.
The cover members 81A and 81B are made of a translucent resin material. Diffusion processing (embossing processing) is applied to the portions of the cover members 81A and 81B that cover the electronic components 25 and 27.

The cover members 81A and 81B have a flat portion 85 at the periphery of the central semicircular notch 83. The flat portion 85 is fixed to the plate-like member 45 of the mounting portion 17. Fixing is performed by a screw member screwed into the screw hole 73.
The outer peripheral portion of the cover members 81A and 81B has an outer collar portion 87 projecting outward. The mantle portion 87 is fixed to the base member 35. Fixing is performed by, for example, a screw member. A plurality of (four) outer collar portions 87 are provided at intervals in the circumferential direction. A translucent cover attaching means 89 for attaching the translucent cover 5 is provided between the outer collar portions 87 adjacent in the circumferential direction.

3. Translucent Cover The translucent cover 5 has a rear cover 91 attached to the apparatus main body 3 and a front cover 93 attached to the rear cover 91, as shown in FIGS. The rear cover 91 and the front cover 93 are made of a translucent resin material. Diffusing particles (for example, silicone particles) are mixed in the translucent material resin, and the translucent cover 5 is a milky white cover.

(1) Rear cover As shown in FIG. 3, the rear cover 91 is provided with a cylindrical portion 95 on the front side, an apparatus body mounting means 97 provided at the rear end of the cylindrical portion 95, and a front end portion of the cylindrical portion 95. And a front cover attachment means 99 provided.
As shown in FIG. 3, the device body attaching means 97 is constituted by an inner collar portion 97 a spaced apart in the circumferential direction at the rear end portion of the cylindrical portion 95 and protruding toward the axial center. When the rear cover 91 is attached to the apparatus main body 3, the inner collar portion 97a engages with an engagement piece 89a (see FIG. 4) which is a translucent cover attaching means 89 of the cover members 81A and 81B.
As shown in FIG. 3, the front cover attaching means 99 is provided between the groove portion 101 provided on the inner peripheral surface of the front portion of the cylindrical portion 95 and formed at intervals in the circumferential direction, and the groove portion 101 adjacent in the circumferential direction. And an engaging recess 103 provided on the The engagement recess 103 engages with the engagement projection 111 of the front cover 93.

(2) Front cover The front cover 93 has a dome portion 107 that has a circular shape when viewed from the front and has a dome shape as a whole, a cylindrical portion 109 provided on the opening side of the dome portion 107, and a cylindrical portion 109 And a rear cover attachment means 105 provided on the rear cover. The rear cover attachment means 105 is constituted by an engagement protrusion 111 which protrudes outward at intervals in the circumferential direction from the outer periphery of the cylindrical portion 95.

4. Mounting portion (1) Hooking blade The hooking blade 47 is provided upright at a corner portion of the plate-like hooking base 121, as shown in FIG. The hooking base 121 is attached to the inside of the convex portion 79 of the plate-like member 45 so that the tip of the hooking blade 47 protrudes from the back surface of the plate-like member 45. The attachment will be described later.
(2) Locking Means As shown in FIGS. 6 and 7, in the locking means 51, the mounting portion 17 is rotated in the mounting direction with the pair of hooking blades 47 inserted in the fitting holes 903 of the mounting member 2. And a pair of fixing claws 131 which are advanced into the insertion hole 903 and come out, and two operation parts 133 operated to release the fixed states of the fixing claws 131.
The fixed claw portion 131 is in a state of being engaged with the insertion hole 903 or in a state of being inserted into the insertion hole 903 and restricts the rotation of the attaching portion 17 in the removal direction. That is, the hooking state or the insertion state of the hooking blade 47 is locked.
The mounting direction is a rotation direction for advancing the hooking blade 47 to the back side of the insertion hole 903 having a circular arc shape when the mounting member 2 is viewed from the front, and the removal direction is the direction opposite to the mounting direction.

The lock means 51 as an example, as shown in FIGS. 6-8, is operated at the time of unlocking with a fixed base portion 135 disposed so as to be able to retract in the insertion / removal direction with respect to the insertion hole 903 of the mounting member 2. Of the plate-like member 45 are two lock members 141 each having a lock base portion 137 disposed movably in the operation direction and a spring portion 139 connecting the fixed base portion 135 and the lock base portion 137. It is accommodated in the inside of the part 79, and is comprised.
As shown in FIGS. 9 and 10, the space inside the convex portion 79 functions as a housing space 80 for the hooking base 121 and the locking means 51. In order to distinguish the lead line of the accommodation space 80 from the peripheral wall of the concave portion (the convex portion 79 is viewed from the back side), the tip is an arrow.
When the operation unit 133 is pushed in the state shown in (a) of FIG. 8 at the time of the unlocking operation, the lock base portion 137 moves so as to approach the fixed base portion 135 as shown in (b) of FIG. Operated). As a result, as shown in FIG. 8B, the spring portion 139 is in the upright state, and the fixed base portion 135 is sunk. The tip of the fixed base portion 135 in the insertion and removal direction is the fixed claw portion 131, and the outer side portion of the lock base portion 137 is the operation portion 133. Further, the insertion of each fixed claw portion 131 is performed by the operation of the operation portion 133 of each lock member 141.

(3) Housing Space The housing space 80 houses the bases of the pair of hooking blades 47, the pair of hooking bases 121, and the locking means 51. The pair of hooking blades 47 have the same configuration, and the two locking members 141 constituting the locking means 51 have the same configuration. Therefore, as shown in FIG. 10, the accommodation space 80 has a symmetrical shape with respect to the center when viewed from the rear. Therefore, one of the accommodation spaces 80 will be described here.
As shown in FIG. 10, the accommodation space 80 has a rectangular shape as a whole when viewed from the rear. The lock space 143 accommodating the lock member 141 exists along the short side. The convex portion (concave portion) 79 has a boss 145 and a rib 146 at a position shifted by the width of the lock member 141 from the short side to the other short side. The rear surface of the boss 145 is located inside the opening of the accommodation space 80, as shown in FIG.

A screw hole 147 is formed in the boss 145, and the hook base 121 is fixed by a screw member. In this state, the lock member 141 disposed in the lock space 143 is closed (covered) by the hook base 121 except for the fixing claws 131. As a result, the lock member 141 is prevented from coming out of the lock space 143.
An operation opening 149 is formed on the long side of the lock space 143 in the housing space 80, and the operation portion 133 of the lock member 141 is exposed to the outside from the operation opening 149 as shown in FIG.
The wiring groove 75 is provided in the plate-like member 45 so as to extend in the radial direction from the approximate center of the long side portion of the housing space 80, as shown in FIGS.
The central portion of the accommodation space 80 accommodates a wire connected to the hooking base 121.

Second Embodiment
The mounting portion 17 of the first embodiment has two lock members 141, and each lock member 141 has a fixed claw portion 131 and an operation portion 133 in a pair. However, the fixing portion may have two fixing claws, and the locked state may be released by the operation of one operation portion.
In the second embodiment, a fixing unit capable of performing an unlocking operation of two fixing claws with one operation unit will be described. Here, the part related to the locking means in the fixing part will be described. The other parts are the same as those of the first embodiment, and thus the description thereof is omitted.
The fixing portion 201 is, as shown in FIG. 11, to the respective insertion holes 903 of the plate-like member 203, the pair of hooking blades 47 fitted in the pair of insertion holes 903 of the mounting member 2 and the pair of hooking blades 47. And lock means 205 for locking the fitting state of

The lock means 205 has a pair of fixed claws 207 and 209, and one operation part 133 operated to release the extended state of the pair of fixed claws 207 and 209.
The lock means 205 as an example is, as shown in FIGS. 11 to 13, connecting the lock member 211 having the fixing claw portion 207, the lock member 213 having the fixing claw portion 209, the lock member 211 and the lock member 213. And a connecting member 215. The connecting member 215 connects the fixing claw portion 209 to interlock with the projecting and retracting operation of the fixing claw portion 207.

As shown in FIG. 12, the lock member 211 has an attachment portion 217 for attaching the connecting member 215 to the lock member 141 according to the first embodiment. The outer side portion of the lock base portion 137 of the lock member 211 corresponds to one operation portion 133. Further, the lock member 211 is accommodated in a space having the same configuration as the accommodation space 80 of the lock member 141 in the first embodiment.
Similarly to the first embodiment, when the operation member 133 is pushed in the state shown in FIG. 12A at the time of the unlocking operation as in the first embodiment, as shown in FIG. 137 approaches the fixed base portion 135, the spring portion 139 is in the upright state, and the fixed base portion 135 is retracted.
The connection member 215 is a wire. At one end of the wire, for example, a disc-like stopper (not shown) is provided. The mounting portion 217 is configured by a recess having a size that allows a part or all of the stopper to be inserted. The stopper is configured not to be larger than the gap between the inner surface of the projection 79 and the lock member 141.
As shown in FIG. 13, the lock member 213 is fixed to the fixed base portion 221 and the lock base portion 223 which is movably disposed at the time of unlocking, similarly to the lock member 141 according to the first embodiment. It has a spring portion 225 connecting the base portion 221 and the lock base portion 223.

As shown in FIG. 13, the lock member 213 has an attachment portion 227 for attaching the connecting member 215 to the lock member 141 according to the first embodiment. Note that no operation portion is provided on the outer side of the lock base portion 223 of the lock member 213.
At the other end of the wire which is an example of the connecting member 215, for example, a disc-like stopper is provided. The mounting portion 227 is formed of a through hole having a size that allows passage of a stopper in a posture parallel to the wire. The stopper at the other end of the wire locks at the periphery of the rectangular through hole by passing through the through hole and taking a posture perpendicular to the wire.
The lock member 213 is disposed and accommodated in a lock space which does not have the operation opening 149 for the operation part with respect to the accommodation space 80 of the lock member 141 of the first embodiment.
When the operation portion 133 of the lock member 211 is operated to release the lock, the fixed base portion 135 of the lock member 211 is retracted and the connection member 215 is pulled. As a result, the lock base 223 in the state shown in FIG. 13A approaches the fixed base 221 (see FIG. 13B). As a result, as shown in (b) of FIG. 13, the spring portion 225 is in the upright state, and the fixed base portion 221 is sunk.
That is, in the lock unit 205 configured as described above, when the operation unit 133 is operated, the fixed base portion 221 of the lock member 211 is lowered. As a result, the lock base portion 223 of the lock member 213 connected by the connection member 215 is moved, and the fixing claw portion 209 is also retracted.

<Others>
1. A pair of fixing claws (1) structure The pair of fixing claws 131, 131, 207, 209 are configured to lock with respect to the pair of insertion holes 903 of the mounting member 2, respectively. That is, the fixing claws 131, 131, 207, 209 are provided for the hooking blades 47, 47. Thereby, the reliability of the lock function can be improved.
(2) Positions In the pair of fixed claws 131, 131, 207, 209, virtual lines connecting the apexes of the pair of fixed claws 131, 131, 207, 209 connect the same parts of the pair of hooking blades 47, 47 It is arranged to pass through the middle point of the virtual line. Thereby, the insertion of the fixing claws 131, 131, 207, 209 into the insertion hole 903 and the unlocking are performed substantially in synchronization.

2. Operation part (1) The number of fixed nail parts 131 of a 1st embodiment cancels a lock state by two operation parts 133. The pair of fixed claws 207 and 209 of the second embodiment is released by one operation unit 133.
From the viewpoint of operability, it is preferable to be able to release the lock state with one operation unit. On the other hand, from the viewpoint of reliability, it is preferable to be able to release the lock state with two operation units.
(2) Position The operation portion 133 in the first and second embodiments is provided on the short side of the side wall corresponding to the long side of the convex portion 79. However, the operation unit may be provided substantially at the center of the side wall corresponding to the long side, or may be provided on the side wall corresponding to the short side.
(3) Structure In the first and second embodiments, the lock member is used, but the lock means may be configured by another structure. For example, a fixed claw portion disposed so as to be able to move in and out, a spring member for maintaining the extended state, an operation portion slidably arranged, and a wire which pulls the fixed claw portion into the retracted state by sliding the operation portion The lock means may be configured by Further, instead of the wire, the operation unit may be connected to one end of the rotating body rotatably supported at the intermediate portion, and the fixing claw may be connected to the other end.

3. Lighting Device In the embodiment, an LED is used as a light source, but it may be a lighting device using a fluorescent lamp existing conventionally, or may be a lighting device using an organic EL element.

1 Ceiling light (lighting device)
2 Attached member 47 Hooking blade 51 Locking means 131 Fixing claw part 133 Operation part

Claims (3)

LED elements as light sources,
An LED substrate on which the LED element is mounted;
A base member on which the LED substrate is disposed;
And a mounting portion for mounting on a mounting member;
The base member has an opening into which the attachment portion fits.
The mounting portion has a step on the peripheral side, and is fixed to the base member in a state in which a portion inside the step closes the opening and a portion outside the step abuts on a peripheral portion of the opening .
The mounting portion has a boss and a screw hole passing through the boss in the outer portion,
The lighting installation with which the attaching part is being fixed to the base member by the screw screwed into the screw hole . The lighting device according to claim 1, wherein the mounting portion includes a pair of hooking blades that are hooked to the mounting member. The lighting device according to claim 1, wherein the inside portion of the mounting portion is made of a transparent resin material.

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