JP2021072179A - Adapter, lighting device and lighting fixture - Google Patents

Abstract

To provide an adaptor, a lighting device, and a lighting fixture capable of easily connecting the lighting fixture and the adaptor by eliminating wiring of the lighting fixture.SOLUTION: An adaptor 10 comprises: a plurality of hooking blades 51a and 52a that are detachably fixed to a hooking sealing 3 to which electric power is supplied; and a connector portion 70 that is provided on a back surface 10b on the opposite side to a surface 10a on which the plurality of hooking blades 51a and 52a are provided in the adaptor 10, is conducted with the plurality of hooking blades 51a and 52a, and supplies the electric power to a lighting fixture 100. The connector portion 70 has: a first feeding portion 70a that is electrically connected with a first feeding terminal 123a provided on the lighting fixture 100; and a second feeding portion 70b that is electrically connected with a second feeding terminal 123b provided so as to surround the first feeding terminal 123a provided on the lighting fixture 100.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to adapters, luminaires and luminaires.

Conventionally, adapters for electrically and mechanically connecting a luminaire to a hook ceiling provided on a ceiling have been known.

A luminaire adapter, which is an example of a conventional adapter, has a connection portion to which a luminaire connector for electrically connecting the luminaire and the luminaire adapter is connected. The connection portion is electrically connected to a connector provided at the tip of the wiring of the luminaire so that the luminaire is electrically connected to the adapter for the luminaire (see, for example, Patent Document 1).

JP-A-2015-76390

However, in the adapter of Patent Document 1, when electrically and mechanically connecting the luminaire and the hook ceiling, the glove of the luminaire is removed after the adapter is electrically and mechanically connected to the hook ceiling. Disassemble and electrically connect the connector at the tip of the wiring provided in the luminaire to the adapter. For this reason, there is a demand for easy connection between the luminaire and the adapter by eliminating the wiring of the luminaire.

Therefore, the present disclosure provides an adapter, a lighting device, and a lighting fixture that can easily connect the lighting fixture and the adapter by eliminating the wiring of the lighting fixture.

The adapter according to one aspect of the present disclosure is an adapter for electrically and mechanically connecting a hook ceiling and a luminaire, and a plurality of hooks detachably fixed to the hook ceiling to which electric power is supplied. A blade and a connector portion provided on the back surface of the adapter on the side opposite to the front surface on which the plurality of hook blades are provided, which conducts with the plurality of hook blades and supplies electric power to the lighting fixture, are provided. The connector portion is electrically connected to a first power supply unit that is electrically connected to the first power supply terminal provided in the luminaire, and a second power supply terminal that is provided so as to surround the first power supply terminal provided in the luminaire. It has a second power supply unit connected to.

Further, the luminaire according to one aspect of the present disclosure includes an adapter and a luminaire that is electrically connected to the adapter.

Further, the luminaire according to one aspect of the present disclosure is a luminaire that is electrically connected to the hook ceiling via an adapter, is a holder fixed to the luminaire, and the adapter can be attached and detached. A first power supply terminal provided on the holder to be attached and connected to the first power supply unit of the adapter, and a second power supply terminal connected to the second power supply unit of the adapter provided so as to surround the first power supply terminal. And.

In the adapter and the like of the present disclosure, the luminaire and the adapter can be easily connected by eliminating the wiring of the luminaire.

FIG. 1 is a perspective view of a luminaire and a hook ceiling in which an adapter is attached to a luminaire in an embodiment. FIG. 2 is an exploded perspective view of the lighting device according to the embodiment. FIG. 3 is an exploded perspective view of the adapter according to the embodiment. FIG. 4 is a cross-sectional view of the lighting device for the IV-IV line of FIG. FIG. 5 is a partially enlarged cross-sectional view showing a first state in which the luminaire according to the embodiment is normally fixed to the adapter. FIG. 6A is a plan view schematically showing the amount of protrusion of the first locking portion and the second locking portion from the outer peripheral surface of the adapter. FIG. 6B is an enlarged view schematically enlarged of the fixed portion of the second locking portion. FIG. 7 is a plan view of the lighting device according to the embodiment as viewed from the hook sealing side. FIG. 8A is a partially enlarged cross-sectional view showing the relationship between the adapter and the holder in the line VIII-VIII of FIG. FIG. 8B is a partially enlarged cross-sectional view showing a state in which the holder of FIG. 8A is rotated in the direction of the arrow of FIG. 9A is a diagram showing a cross-sectional view of the holder and a plan view of the adapter in the relationship between the adapter and the holder in the state of FIG. 8A. FIG. 9B is a diagram showing a cross-sectional view of the holder and a plan view of the adapter in the relationship between the adapter and the holder in the state of FIG. 8B. FIG. 10 is a partially enlarged cross-sectional view showing a second state in which the luminaire according to the embodiment is temporarily fixed to the adapter. FIG. 11A is a partially enlarged cross-sectional view showing a first state in which the luminaire is normally fixed to the adapter in the modified example of the embodiment. FIG. 11B is a partially enlarged cross-sectional view showing a first state in which the luminaire is normally fixed to the adapter in the modified example of the embodiment.

It should be noted that all of the embodiments described below show comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, the order of steps, etc. shown in the following embodiments are examples, and are not intended to limit the present disclosure. Further, among the components in the following embodiments, the components not described in the independent claims will be described as arbitrary components.

Further, each figure is a schematic view and is not necessarily exactly illustrated. Further, in each figure, the same components are designated by the same reference numerals. Further, in the following embodiments, expressions such as substantially parallel are used. For example, substantially parallel not only means that they are perfectly parallel, but also that they are substantially parallel, that is, they include an error of, for example, about several percent. Further, substantially parallel means parallel to the extent that the effects of the present disclosure can be achieved. The same applies to expressions using other "abbreviations".

In the following description, the vertical direction of the lighting device is referred to as the Z-axis direction, and the arrangement direction of the first locking portion and the second locking portion is referred to as the Y-axis direction. The direction perpendicular to each of the Z-axis direction and the Y-axis direction is referred to as the X-axis direction. Further, in the Z-axis direction, the vertically upper direction is referred to as a Z-axis plus direction, and the opposite direction is referred to as a minus direction. The same applies to FIGS. 2 and later.

Hereinafter, embodiments will be specifically described with reference to the drawings.

(Embodiment)
<Structure>
FIG. 1 is a perspective view of a luminaire 1 and a hook ceiling 3 in which an adapter 10 is attached to a luminaire 100 in an embodiment.

As shown in FIG. 1, the lighting device 1 is a device that is fixed to a ceiling, a wall, or the like and can illuminate the fixed surrounding space. The lighting device 1 is, for example, a ceiling light, a base light, or the like. Specifically, the lighting device 1 is fixed to the hook ceiling 3 in a state of being electrically and mechanically connected to the hook ceiling 3 arranged on the ceiling.

FIG. 2 is an exploded perspective view of the lighting device 1 according to the embodiment. FIG. 3 is an exploded perspective view of the adapter 10 according to the embodiment.

As shown in FIGS. 1 to 3, the luminaire 1 includes an adapter 10 and a luminaire 100.

<Adapter 10>
The adapter 10 is a luminaire adapter that electrically and mechanically connects the ceiling hook ceiling 3 and the luminaire 100. The adapter 10 is attached to and fixed to the hook ceiling 3 by being rotated with respect to the hook ceiling 3.

The adapter 10 includes a housing 20, a first locking portion 31, a second locking portion 32, an elastic member 40, a first terminal 51 and a second terminal 52, and a third terminal 53 and a fourth terminal 54. A connector portion 70, a lock portion 80, and an unlock button 90 are provided.

[Case 20]
The housing 20 is a cylindrical housing body flat in the Z-axis direction that houses each component included in the adapter 10. The housing 20 is provided with a first terminal 51 and a second terminal 52, a third terminal 53 and a fourth terminal 54, a connector portion 70, and a first locking portion 31 and a second locking portion 32. ..

The housing 20 is formed with a front surface 10a, which is a surface facing the hook sealing 3, and a back surface 10b, which is opposite to the front surface 10a. The surface 10a is a surface on the positive side of the Z axis and is substantially parallel to the XY plane. Further, the back surface 10b is a surface on the negative direction side of the Z axis, and is substantially parallel to the XY plane.

The housing 20 has a main body 21 that constitutes the front surface 10a and a cover 22 that constitutes the back surface 10b.

The main body 21 is a bottomed cylindrical housing body flat in the Z-axis direction, which is formed of an insulating resin material and houses each component included in the adapter 10. The main body portion 21 has a tubular side wall portion 21a that opens the end portion on the negative direction side of the Z axis, and a bottom portion 21b whose end portion on the positive direction side of the Z axis forms the surface 10a of the housing 20.

As shown in FIG. 2, the hooking blade 51a of the first terminal 51 and the hooking blade 52a of the second terminal 52 project from the surface 10a of the main body 21 in the Z-axis positive direction. An insertion hole through which the first terminal 51 and the second terminal 52 are inserted is formed in the bottom portion 21b of the main body portion 21.

The central portion of the surface 10a of the main body 21 is a surface on the Z-axis plus direction side, which is a reference surface that comes into contact with the hook sealing 3 when the adapter 10 is attached to the hook sealing 3 of FIG. 29 is formed. The plan view shape of the reference surface 29 is a substantially rectangular frame shape.

FIG. 4 is a cross-sectional view of the illuminating device 1 on the IV-IV line of FIG. FIG. 5 is a partially enlarged cross-sectional view showing a first state in which the luminaire 100 according to the embodiment is normally fixed to the adapter 10.

As shown in FIGS. 3 to 5, a first opening 21c and a second opening 21d are formed in the side wall portion 21a of the main body portion 21. The side wall portion 21a is an outer peripheral surface portion between the front surface 10a and the back surface 10b of the main body portion 21, and forms the outer peripheral surface 10c of the adapter 10. From the first opening 21c, the first locking portion 31 projects outward (diameterally) from the outer peripheral surface 10c of the main body portion 21 in a state where the first locking portion 31 is inserted. From the second opening 21d, the second locking portion 32 projects outward from the outer peripheral surface 10c of the main body portion 21 in a state where the second locking portion 32 is inserted. The outer peripheral surface 10c of the main body 21 constitutes a part of the outer peripheral surface 10c of the adapter 10.

Further, as shown in FIGS. 2 and 3, a second convex portion 21e that engages with the first convex portion 124 formed on the holder 120 of the luminaire 100 is formed on the side wall portion 21a of the main body portion 21. .. The second convex portion 21e engages with the first convex portion 124 of the holder 120 by rotating around the central axis O of the adapter 10 (rotating the luminaire 100 in a predetermined direction), whereby the luminaire 100 Releases the first state fixed to the adapter 10. That is, when the first state in which the luminaire 100 is fixed to the adapter 10 is released, the second convex portion 21e engages with the first convex portion 124 formed on the luminaire 100, whereby the luminaire 100 Transitions the first state fixed to the adapter 10 to the second state of temporary fixing, and temporarily fixes the luminaire 100 to the adapter 10. The second convex portion 21e projects radially from the outer peripheral surface 10c of the side wall portion 21a. The second convex portion 21e has an inclined surface 21e1 that is inclined with respect to the Z-axis direction. The inclined surface 21e1 is inclined downward with respect to the rotation direction of the luminaire 100. In the present embodiment, since the lighting fixture 100 has only two directions of rotation (clockwise and counterclockwise), the second convex portion 21e has two inclined surfaces 21e1. In the present embodiment, the second convex portion 21e has a substantially triangular shape when the outer peripheral surface 10c of the side wall portion 21a is viewed in a plan view. Here, the central axis O is substantially parallel to the Z-axis direction.

When the luminaire 100 rotates, the first convex portion 124 of the luminaire 100 slides in a state of being in contact with the inclined surface 21e1 of the second convex portion 21e, so that the first convex portion 124 and the second convex portion 21e are moved. , The urging force that moves the luminaire 100 in the negative direction of the Z axis is exerted.

The cover 22 is, for example, a plate-shaped member formed of an insulating resin material and covering the Z-axis minus direction side of the main body 21. The cover 22 closes the opening on the Z-axis negative direction side of the main body 21, and constitutes the end portion of the housing 20 on the Z-axis negative direction side. The cover 22 is fixed to the main body 21 by a fixing member such as a screw 99.

A first insertion port 22a and a second insertion port 22b are formed in the central portion of the cover 22.

As shown in FIGS. 3 and 4, the first feeding terminal 123a of the holder 120, which will be described later, is inserted into the first insertion port portion 22a to form a circular opening surface in a plan view. The opening surface of the first insertion port portion 22a is orthogonal to the central axis O.

Further, the second feeding terminal 123b of the holder 120, which will be described later, is inserted into the second insertion port portion 22b to form an annular opening surface in a plan view. The second insertion opening portion 22b is formed around (so as to surround) the first insertion opening portion 22a, and is formed concentrically with respect to the first insertion opening portion 22a.

The depth direction of the first insertion port 22a and the second insertion port 22b, and the attachment / detachment direction of the first power supply terminal 123a and the second power supply terminal 123b are substantially parallel to the Z-axis direction.

[First locking portion 31 and second locking portion 32]
The first locking portion 31 and the second locking portion 32 are resin members for the adapter 10 to hold the luminaire 100 in a predetermined posture. That is, the first locking portion 31 and the second locking portion 32 are members for locking the luminaire 100 to the adapter 10. The first locking portion 31 and the second locking portion 32 project forward and backward from the outer peripheral surface 10c of the adapter 10 to fix the luminaire 100 to the adapter 10. The first locking portion 31 and the second locking portion 32 move along the Y-axis direction so as to be synchronized with each other. In the present embodiment, two locking portions are used, but the number of locking portions may be three or more, or one.

The first locking portion 31 is urged by the elastic member 40 from the inside to the outside of the housing 20, and projects from the first opening 21c of the main body 21 toward the outside of the main body 21. The second locking portion 32 is urged by the elastic member 40 from the inside to the outside of the housing 20, and projects from the second opening 21d of the main body 21 toward the outside of the main body 21.

Each of the first locking portion 31 and the second locking portion 32 has a locking body 33 and an engaging protrusion 34.

Each of the locking main bodies 33 is provided in the first opening 21c and the second opening 21d of the main body 21, and a part thereof protrudes from the outer peripheral surface 10c of the main body 21. The locking body 33 and the engaging protrusion 34 are integrally formed.

Each locking body 33 has a rectangular flat plate shape that is flat in the Z-axis direction. The protruding portion of the locking main body 33 protruding from the outer peripheral surface 10c of the main body 21 is an arc shape that follows the shape of the outer peripheral surface 10c of the main body 21. The protruding portion of each locking body 33 is also a portion forming a part of the outer peripheral surface 10c of the adapter 10. The protruding portion of each locking body 33 becomes a portion for fixing the luminaire 100 to the adapter 10 by engaging with the holder 120. The protruding portion of each locking body 33 is formed in a stepped shape.

Specifically, each locking main body 33 has a fixing portion 35 and a temporary fixing portion 36 formed on a protruding portion of the locking main body 33.

FIG. 6A is a plan view schematically showing the amount of protrusion of the first locking portion 31 and the second locking portion 32 from the outer peripheral surface 10c of the adapter 10.

As shown in FIG. 6A, the fixing portion 35 fixes the luminaire 100 to the adapter 10 by locking the locked portion 122b of the holder 120 of the luminaire 100. In this case, each of the first locking portion 31 and the second locking portion 32 is in the first state in which when the luminaire 100 is fixed to the adapter 10, the first amount A1 protrudes from the outer peripheral surface 10c of the adapter 10. It becomes. Here, the first state means a state in which the adapter 10 is inserted and fixed to the holder 120 of the luminaire 100, and is normally attached. The normally mounted state is a state in which the movement of the luminaire 100 is restricted even if the luminaire 100 is moved in the Z-axis direction (the first contact surface 35a of the fixed portion 35 and the locked portion 122b). The contact surface 122a1 is in contact with the contact surface 122a1), and the third terminal 53 and the fourth terminal 54 are connected to the connector portion 70.

As shown in FIGS. 3 to 5, the fixing portion 35 is an arc-shaped portion protruding from the outer peripheral surface 10c of the main body portion 21 along the outer peripheral surface 10c of the main body portion 21. The fixing portion 35 is a part of the protruding portion of the locking main body 33. Further, the end surface of the fixing portion 35 in the protruding direction constitutes a part of the outer peripheral surface 10c of the adapter 10, and may be the outer peripheral surface 37 of the fixing portion 35 or the outer peripheral surface 37 of the locking main body 33.

The fixing portion 35 is formed in a stepped manner with respect to the surface 10a of the main body portion 21 when the adapter 10 is viewed from the side surface. The fixed portion 35 is formed with a first contact surface 35a that is lower than the surface 10a of the main body portion 21. The first contact surface 35a is a surface that comes into contact with the locked portion 122b when the first locking portion 31 and the second locking portion 32 lock the locked portion 122b of the holder 120 in the first state. Is. Specifically, in the first state, the fixed portion 35 has the first contact surface 35a in contact with the locked portion 122b of the holder 120 in a state of facing the locked portion 122b of the holder 120. Then, the locked portion 122b of the holder 120 is locked.

Further, as shown in FIG. 6A, in the first state, the diameter of the circle S1 including the outer peripheral surface 37 of the fixed portion 35 is larger than the diameter of the circle S2 of the outer peripheral surface 10c of the main body portion 21.

The temporary fixing portion 36 engages with the locked portion 122b to temporarily fix the luminaire 100 to the adapter 10. In this case, each of the first locking portion 31 and the second locking portion 32 is smaller than the first amount A1 from the outer peripheral surface 10c of the adapter 10 when the luminaire 100 is temporarily fixed to the adapter 10. The second state is such that the amount A2 protrudes. In the second state, the diameter of the outermost circle S3 of the adapter 10 when the second amount is A2 is larger than the diameter of the outermost circumference of the adapter 10 when the first amount is A1. Here, the second state is a state in which the adapter 10 is inserted into the holder 120 of the luminaire 100 and temporarily fixed, and the contact surface between the second contact surface 36a of the temporary fixing portion 36 and the locked portion 122b. It means a state in which the 122a1 is in contact with the 122a1. That is, in the second state, the luminaire 100 is not fixed to the adapter 10 as firmly as in the first state. For example, when the temporary fixing portion 36 engages with the locked portion 122b, the luminaire 100 is supported by the adapter 10, but the luminaire 100 is pulled down in the negative direction of the Z axis in order to move the luminaire 100 in the Z-axis direction. In some cases, the luminaire 100 may be allowed to move.

As shown in FIGS. 3 to 5, the temporary fixing portion 36 is an arc-shaped portion protruding from the outer peripheral surface 10c of the main body portion 21 along the shape of the outer peripheral surface 10c of the main body portion 21. The temporary fixing portion 36 is a part of the protruding portion of the locking main body 33.

The temporary fixing portion 36 is formed in a stepped manner with respect to the first contact surface 35a of the fixing portion 35 when the adapter 10 is viewed from the side surface, and has a diameter from the side wall portion 21a of the main body portion 21 more than the fixing portion 35. It projects outward in the direction. The temporary fixing portion 36 is formed with a second contact surface 36a below the first contact surface 35a of the fixing portion 35 (on the Z-axis minus direction side). That is, the temporary fixing portion 36 and the fixing portion 35 form a stepped structure at the protruding portion of the locking main body 33.

Further, as shown in FIG. 6A, the diameter of the circle S1 including the outermost peripheral edge of each of the temporary fixing portions 36 of the first locking portion 31 and the second locking portion 32 is the outer peripheral surface 10c of the main body portion 21. It is larger than the diameter of the circle S2 and larger than the diameter of the circle S4 including the outer peripheral surface 37 of each of the fixing portions 35 of the first locking portion 31 and the second locking portion 32.

The second contact surface 36a is a surface that comes into contact with the locked portion 122b when the first locking portion 31 and the second locking portion 32 engage with the locked portion 122b in the second state. In other words, the second contact surface 36a is a surface that comes into contact with the locked portion 122b when the luminaire 100 is temporarily fixed to the adapter 10. Specifically, in the second state, the temporary fixing portion 36 is in contact with the locked portion 122b of the holder 120 in a state of facing the locked portion 122b of the holder 120, thereby covering the holder 120. Engage with the locking portion 122b.

FIG. 6B is a schematic enlarged view of the fixing portion 35 of the second locking portion 32.

As shown in FIGS. 5 and 6B, the second contact surface 36a is in a direction away from the outer peripheral surface 10c of the adapter 10 with respect to the virtual plane V orthogonal to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3 of FIG. It slopes down. In other words, the distance of the inclined surface 21e1 from the virtual plane V increases as the distance from the outer peripheral surface 10c increases. The second contact surface 36a is an inclined surface of the temporary fixing portion 36 that inclines downward in a direction away from the central axis O of the adapter 10 substantially parallel to the Z-axis direction, and is an inclined surface curved with respect to the XY plane. Configure. That is, the second contact surface 36a is an example of the inclined surface of the temporary fixing portion 36. The extension surface including the second contact surface 36a is inclined with respect to the first contact surface 35a and also with respect to the surface 10a of the main body 21.

In the locking body 33, when the adapter 10 is cut on a plane including the central axis O of the adapter 10 and parallel to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3, the first locking portion 31 and the second locking portion 32 In the first state, when the locked portion 122b of the holder 120 is locked, the first contact surface 35a of the fixing portion 35 that comes into contact with the locked portion 122b of the holder 120 and the adapter 10 for the hook sealing 3 The first angle θ1 formed by the outer peripheral surface 10c of the adapter 10 parallel to the attachment / detachment direction (Z-axis direction) is the locked portion of the holder 120 with the first locking portion 31 and the second locking portion 32 in the second state. The second contact surface 36a of the temporary fixing portion 36 that comes into contact with the locked portion 122b of the holder 120 when engaging with the 122b, and the outer peripheral surface 10c of the adapter 10 parallel to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3. It is smaller than the second angle θ2. In other words, the second angle θ2 formed by the outer peripheral surface 37 of the locking body 33 (or the fixing portion 35) and the second contact surface 36a is the first contact surface 35a and the locking body 33 (or the fixing portion 35). It is larger than the first angle θ1 formed by the outer peripheral surface 37 of the above. That is, in the locking body 33, when the first locking portion 31 and the second locking portion 32 lock the locked portion 122b of the lighting fixture 100 in the first state, the first angle θ1 is formed. The locking force in the removal direction (Z-axis minus direction) when the first locking portion 31 and the second locking portion 32 in the portion 35 lock the locked portion 122b in the first state is the fixing portion 35. In the temporary fixing portion 36 forming the second angle θ2 with the outer peripheral surface 37 of the above, the removal direction when the first locking portion 31 and the second locking portion 32 engage with the locked portion 122b in the second state. Greater than the locking force of. Therefore, in the case of the second state, the luminaire 100 can be easily removed from the adapter 10 as compared with the case of the first state.

As shown in FIGS. 3 to 5, the engaging protrusion 34 is formed integrally with the locking main body 33 and is provided so as to extend from the locking main body 33. Specifically, the engaging protrusion 34 is located in the O direction of the central axis of the adapter 10 (the center in the radial direction of the main body 21) from the edge of the locking main body 33 on the side opposite to the protruding portion of the locking main body 33. Protruding into.

An elastic member 40 is attached to the engaging protrusion 34. By engaging with the end portion of the elastic member 40, the engaging protrusion 34 is urged outward in the radial direction from the side wall portion 21a of the main body portion 21 by the elastic member 40 together with the locking main body 33. The outer side in the radial direction is a direction away from the center in the radial direction of the main body portion 21.

[Elastic member 40]
The elastic member 40 is a torsion spring in the present embodiment, but may be another elastic member 40. The elastic member 40 urges the first locking portion 31 and the second locking portion 32 to the outside of the side wall portion 21a of the main body portion 21 in the radial direction. The elastic member 40 causes the first locking portion 31 and the second locking portion 32 to project forward and backward with respect to the side wall portion 21a (outer peripheral surface 10c) of the main body portion 21.

In the present embodiment, the elastic member 40 moves the first locking portion 31 along the Y-axis minus direction and the second locking portion 32 along the Y-axis plus direction.

[First terminal 51 and second terminal 52]
The first terminal 51 and the second terminal 52 are detachably fixed to the hook sealing 3 of FIG. 1 which is electrically connected to the wiring to which electric power is supplied. The first terminal 51 and the second terminal 52 are metal plate-shaped members, and are a pair of terminals for the luminaire 100 to receive electric power from the hook sealing 3. The first terminal 51 and the second terminal 52 are fixed to the inner bottom portion 21b of the main body portion 21 by a fixing member such as a screw. In this embodiment, two terminals, a first terminal 51 and a second terminal 52, are illustrated, but the adapter 10 may have three or more terminals.

One end (L-shaped portion) of the first terminal 51 is inserted into the power supply port 3a of the hook sealing 3, and one end of the second terminal 52 is also inserted into the power supply port 3a of the hook sealing 3. The first terminal 51 and the second terminal 52 are electrically connected to a pair of power supply terminals (not shown) in the hook sealing 3. The luminaire 100 receives, for example, AC power from the hook ceiling 3, but may also receive DC power.

As shown in FIG. 3, one end of the first terminal 51 and one end of the second terminal 52 are hook blades 51a and 52a protruding from the surface 10a of the main body 21. The hooking blades 51a and 52a, which are protruding portions of the first terminal 51 and the second terminal 52, are formed in an L shape in a side view and have a claw shape.

Further, as shown in FIGS. 1 and 3, the hook blade 51a of the first terminal 51 is inserted into the power supply port 3a of the hook ceiling 3, and the hook blade 52a of the second terminal 52 is also the power supply port 3a of the hook ceiling 3. The adapter 10 is mechanically connected to the hook sealing 3 by being inserted into the hook sealing 3. Rotate the adapter 10 with the hook blade 51a of the first terminal 51 inserted into the power supply port 3a of the hook sealing 3 and the hook blade 52a of the second terminal 52 inserted into the power supply port 3a of the hook sealing 3. Then, the first terminal 51, the second terminal 52, and the lock portion 80 are hooked on the hook sealing 3 to stop the rotation.

As shown in FIGS. 3 and 5, the other end of the first terminal 51 is electrically and mechanically connected to one end of the third terminal 53 and is housed in the main body 21. Further, the other end of the second terminal 52 is electrically and mechanically connected to one end of the fourth terminal 54 and is housed in the main body 21.

[Third terminal 53 and fourth terminal 54]
The third terminal 53 and the fourth terminal 54 are metal plate-shaped members, and are a pair of terminals for the luminaire 100 to receive electric power from the hook ceiling 3 of FIG. One end of the third terminal 53 is electrically and mechanically connected to the other end of the first terminal 51. Further, one end of the fourth terminal 54 is electrically and mechanically connected to the other end of the second terminal 52. The third terminal 53 is pressed and fixed to the inner bottom portion 21b by fixing the first terminal 51 to the inner bottom portion 21b of the main body portion 21 by a fixing member such as a screw. Further, the fourth terminal 54 is pressed and fixed to the inner bottom portion 21b by fixing the second terminal 52 to the inner bottom portion 21b of the main body portion 21 by a fixing member such as a screw.

In the present embodiment, one end of the third terminal 53 and one end of the fourth terminal 54 are bifurcated terminals, sandwiching the other end of the first terminal 51 and the other end of the second terminal 52. ..

The other end 53a of the third terminal 53 is arranged in the first insertion port 22a. Further, the other end portion 54a of the fourth terminal 54 is arranged in the second insertion port portion 22b. The other end 53a of the third terminal 53 is a bifurcated terminal that extends in the Z-axis direction so as to be electrically connected to the first power supply terminal 123a and sandwiches the first power supply terminal 123a. The other end 54a of the fourth terminal 54 is a bifurcated terminal that extends in the Z-axis direction so as to be electrically connected to the second power supply terminal 123b and sandwiches the second power supply terminal 123b. The other end 53a of the third terminal 53 and the other end 54a of the fourth terminal 54 accept the insertion of the first feeding terminal 123a and the second feeding terminal 123b in the positive direction of the Z axis.

The first terminal 51 and the third terminal 53 may be integrated into one member, or the second terminal 52 and the fourth terminal 54 may be integrated into one member.

[Connector unit 70]
The connector portion 70 is provided on the back surface 10b on the side opposite to the front surface 10a on the side where the first terminal 51 and the second terminal 52 are provided in the adapter 10, and is hooked in FIG. 1 via the first terminal 51 and the second terminal 52. It conducts with the sealing 3 and supplies electric power to the luminaire 100.

Specifically, the connector portion 70 is the other end of the third terminal 53 arranged on the Z-axis plus direction side from the first insertion port portion 22a so as to be electrically connected to the first power supply terminal 123a of the holder 120. The other end 54a of the fourth terminal 54 arranged on the Z-axis plus direction side from the second insertion port 22b so as to be electrically connected to the second power feeding terminal 123b of the holder 120, and the first portion 53a. It is composed of an insertion port 22a and a second insertion port 22b. More specifically, the connector portion 70 has a first feeding portion 70a and a second feeding portion 70b. The first power feeding portion 70a is electrically connected to the first insertion port 22a formed in the central portion of the cover 22 and the first feeding terminal 123a of the holder 120 inserted into the first insertion port 22a. It is composed of the other end 53a of the three terminals 53. The second feeding portion 70b is electrically connected to the second feeding terminal 123b formed in the central portion of the cover 22 and the second feeding terminal 123b of the holder 120 inserted into the second insertion port 22b. It is composed of the other end 54a of the terminal 54. The first power supply unit 70a and the second power supply unit 70b have a shape corresponding to the first power supply terminal 123a and the second power supply terminal 123b.

Further, the connector portion 70 is detachably provided with respect to the first power supply terminal 123a and the second power supply terminal 123b, which are the connectorized portions 123 of the lighting fixture 100. The connector portion 70 is electrically connected to the connector-attached portion 123 of the luminaire 100 in the first state, and is electrically disconnected from the connector-attached portion 123 of the luminaire 100 in the second state. Here, the connector-attached portion 123 is composed of a first power supply terminal 123a and a second power supply terminal 123b.

[Lock part 80]
The lock portion 80 is a member for restricting the movement of the adapter 10 with respect to the hook sealing 3 in order to maintain the first state in which the adapter 10 is fixed to the hook sealing 3 of FIG. The lock portion 80 is formed of a resin material.

The lock portion 80 includes an extension portion 81, a coil spring (not shown), a spring hole (not shown) into which the coil spring is inserted, and a guide portion 82.

The extending portion 81 projects from the opening provided in the surface 10a of the main body portion 21 and is inserted into the feeding port 3a provided in the hook sealing 3, thereby restricting the movement of the adapter 10 with respect to the hook sealing 3.

One end of the coil spring abuts on the bottom portion 21b in the spring hole, and the other end abuts on the inner surface of the cover 22 to urge the lock portion 80 in the Z-axis plus direction.

The guide portion 82 is a groove portion that slidably guides the pin 91 of the unlock button 90, which will be described later. The guide portion 82 forms a groove inclined in the direction in which the unlock button 90, which is the moving direction of the pin 91, is pushed.

As shown in FIGS. 1 and 3, for example, when the adapter 10 is rotated and the position of the extension portion 81 overlaps with the feeding port 3a of the hook sealing 3, the extension portion 81 is coiled. Due to the urging force of the spring, it further protrudes from the opening provided on the surface 10a of the main body 21 and is inserted into the feeding port 3a of the hook sealing 3. As a result, the rotation of the adapter 10 with respect to the hook sealing 3 is restricted, and the rotation of the adapter 10 with respect to the hook sealing 3 is locked.

[Unlock button 90]
The lock release button 90 is a button that is pressed to pull out the extension portion 81 from the power supply port 3a of the hook sealing 3, and is a button provided on the side wall portion 21a of the main body portion 21. The unlock button 90 is a resin member whose part is exposed to the outside from the main body 21 through a notch 21f provided in the side wall 21a of the main body 21.

The unlock button 90 is formed with a pin 91 that slides with respect to the lock portion 80. The lock release button 90 of the pin 91 is pushed inside the main body portion 21 and engages with the guide portion 82 of the lock portion 80 to slidably move the guide portion 82.

For example, when the pin 91 moves in the direction in which the unlock button 90 is pushed, the lock portion 80 is moved in the negative direction on the Z axis by pushing the inner wall of the guide portion 82 in the negative direction on the Z axis. As a result, the extending portion 81 is pulled out from the feeding port 3a of the hook sealing 3 against the urging force of the coil spring. As a result, the restriction on the rotation of the adapter 10 with respect to the hook sealing 3 is released. The adapter 10 can be rotated with respect to the hook sealing 3 while pressing the lock release button 90, and the adapter 10 can be removed from the hook sealing 3.

<Lighting fixture 100>
As shown in FIGS. 2 and 4, the lighting fixture 100 includes a fixture main body 110 accommodating a light source 130, a holder 120 to which an adapter 10 can be detachably attached, a light source 130, a diffusion cover 140, and a power supply unit 150. Has. In the present embodiment, the luminaire 100 is a bottomed cylindrical luminaire that has a circular shape in a plan view and is flat in the Z-axis direction.

[Instrument body 110]
The appliance main body 110 is made of, for example, a metal containing aluminum, iron, or the like as a main component, a resin, or the like, and constitutes an accommodating body that houses the holder 120, the light source 130, the power supply unit 150, and the like. The appliance body 110 functions as a heat sink that dissipates heat generated from the light source 130 and the power supply unit 150.

Further, the instrument main body 110 accommodates the holder 120, the power supply unit 150, etc., and from the container-shaped accommodating portion 111 in which the end edge on the Z-axis minus direction side opens and the end edge on the Z-axis minus direction side of the accommodating portion 111. It has a collar-shaped collar 112 extending in the radial direction of the central axis O of the luminaire 100.

The accommodating portion 111 is a container having a circular shape in a plan view, and an opening 113 for fixing the holder 120 is formed in the central portion. Specifically, the holder 120 that covers the opening 113 of the accommodating portion 111 is fixed by a fixing member such as a screw.

Further, the flange portion 112 forms an annular shape extending in the radial direction of the accommodating portion 111 from the end edge of the accommodating portion 111 on the negative direction side of the Z axis. The light source 130 is fixed to the surface of the collar portion 112 on the negative direction side of the Z axis with a fixing member such as a screw. A diffusion cover 140 is fixed to the outer peripheral edge of the flange portion 112 so as to cover the light source 130.

[Holder 120]
The holder 120 is a bottomed cylindrical container that is flat in the Z-axis direction and houses the adapter 10. The holder 120 has a circular shape in a plan view. The holder 120 is formed of, for example, an insulating resin material.

The holder 120 includes a tubular outer peripheral wall portion 121 on which an insertion port 122a for opening the end on the Z-axis positive direction side is formed, a bottom portion 122 that closes the end on the Z-axis negative direction side of the outer peripheral wall portion 121, and the like. It has a first power feeding terminal 123a and a second power feeding terminal 123b.

The outer peripheral wall portion 121 is fixed to the accommodating portion 111 of the instrument main body 110 so that the central axis O of the outer peripheral wall portion 121 substantially coincides with the central axis O of the adapter 10. Specifically, the outer peripheral wall portion 121 has a collar-shaped fixing piece 121a that projects in the outer diameter direction from the edge on the Z-axis plus direction side. The fixed piece 121a is in a state where the outer peripheral wall portion 121 is inserted into the opening 113 of the accommodating portion 111 so that the central axis O of the outer peripheral wall portion 121 substantially coincides with the central axis O of the opening 113 of the accommodating portion 111. , Is fixed with fixing members such as screws.

A third convex portion 125 is formed on the inner peripheral surface of the outer peripheral wall portion 121.

The third convex portion 125 is a first locking portion 31 and a second locking portion 32 of the adapter 10 when the holder 120 (lighting fixture 100) is rotated in the circumferential direction around the central axis O with respect to the adapter 10. The protrusion amount of the first locking portion 31 and the second locking portion 32 with respect to the outer peripheral surface 10c of the adapter 10 is changed by abutting with.

The third convex portion 125 is a convex structure that exerts an urging force that moves the first locking portion 31 and the second locking portion 32 in the direction of the central axis O of the adapter 10. More specifically, the third convex portion 125 is a convex structure that protrudes from a part of the inner peripheral surface of the outer peripheral wall portion 121 along the central axis O of the outer peripheral wall portion 121. When the holder 120 rotates around the central axis O of the adapter 10, the third convex portion 125 comes into contact with the first locking portion 31 and the second locking portion 32 of the adapter 10, so that the first locking portion 125 is first locked. It has a protrusion amount sufficient to move the portion 31 and the second locking portion 32 in the direction of the central axis O of the adapter 10. More specifically, the third convex portion 125 has a protruding amount sufficient to release the locking between the fixing portion 35 of the first locking portion 31 and the second locking portion 32 and the locked portion 122b. It has a protrusion amount sufficient to disengage the temporary fixing portions 36 of the first locking portion 31 and the second locking portion 32 from each other and the locked portion 122b.

The outer peripheral wall portion 121 has a locked portion 122b that projects from the edge on the Z-axis plus direction side toward the inner peripheral side, that is, so as to narrow the opening area of the insertion port 122a of the outer peripheral wall portion 121.

The locked portion 122b is a locking body in each of the first locking portion 31 and the second locking portion 32 when the luminaire 100 is normally fixed to the adapter 10 in the first state. It comes into contact with the fixing portion 35 of 33. More specifically, in the first state, the contact surface 122b1, which is the surface of the locked portion 122b on the negative direction side of the Z axis (the surface facing the fixed portion 35), is the first contact of the fixed portion 35. It comes into contact with the surface 35a.

Further, the locked portion 122b is a locking main body 33 in each of the first locking portion 31 and the second locking portion 32 when the luminaire 100 is temporarily fixed to the adapter 10 in the second state. In contact with the temporary fixing portion 36 of. More specifically, in the second state, the contact surface 122b1, which is the surface of the locked portion 122b on the negative direction side of the Z axis (the surface facing the temporary fixing portion 36), is the second surface of the temporary fixing portion 36. It abuts or faces the contact surface 36a.

Further, a first convex portion 124 is formed on the surface of the locked portion 122b on the Z-axis positive direction side. The first convex portion 124 is illuminated by engaging with the second convex portion 21e of the adapter 10 when the holder 120 (lighting fixture 100) is rotated in the circumferential direction around the central axis O with respect to the adapter 10. The state of the adapter 10 fixed to the device 100 is changed to the state of temporary fixing.

The first convex portion 124 is a convex structure that exerts an urging force that pushes down the luminaire 100 in the negative direction of the Z axis via the holder 120. More specifically, the first convex portion 124 is a substantially triangular convex structure in front view, but is not limited thereto. For example, the second convex portion 21e of the holder 120 that rotates around the central axis O of the adapter 10 may ride on the holder 120 and exert an urging force that pushes down the luminaire 100 in the negative direction of the Z axis via the holder 120. An inclined surface that inclines upward with respect to the circumferential direction around the central axis O of the adapter 10 may be formed.

The bottom portion 122 is a plate-shaped bottom plate substantially parallel to the XY plane, and faces the back surface 10b of the adapter 10. The first power supply terminal 123a and the second power supply terminal 123b are fixed to the central portion of the bottom portion 122.

[First power supply terminal 123a and second power supply terminal 123b]
The first power supply terminal 123a is a columnar terminal, a connection terminal for supplying electric power supplied from the hook sealing 3 of FIG. 1 via the adapter 10, and is a male connector portion. The first feeding terminal 123a has a fixing member such as a screw on the bottom 122 of the holder 120 so that the central axis O of the first feeding terminal 123a substantially coincides with the central axis O of the adapter 10 and the central axis O of the outer peripheral wall portion 121. Fixed by.

Further, the second power supply terminal 123b is a tubular terminal, a connection terminal for supplying electric power supplied from the hook sealing 3 via the adapter 10, and is a male connector portion. The second power supply terminal 123b is formed around (surrounding) the first power supply terminal 123a, and is formed concentrically with respect to the first power supply terminal 123a. The second power supply terminal 123b is provided with a fixing member such as a screw on the bottom portion 122 of the holder 120 so that the central axis of the second power supply terminal 123b substantially coincides with the central axis O of the adapter 10 and the central axis O of the outer peripheral wall portion 121. It is fixed. The second power supply terminal 123b does not have to be tubular because it may surround the first power supply terminal 123a.

That is, when the adapter 10 is inserted into the holder 120, the first power supply terminal 123a is inserted into the first insertion port 22a of the cover 22, and the second power supply terminal 123b is the second insertion port of the cover 22. It is inserted in 22b.

In the present embodiment, the first feeding terminal 123a is a cylindrical pin, and the second feeding terminal 123b is an annular (cylindrical) terminal.

[Light source 130]
As shown in FIG. 4, the light source 130 is, for example, a light emitting module that emits light, for example, a light emitting module for lighting that brightens the entire room. The light source 130 is arranged on a mounting surface which is a surface on the Z-axis minus direction side of the flange portion 112 of the instrument body 110, and is fixed to the instrument body 110 so as to irradiate the surroundings with light.

The light source 130 includes a substrate 131 and a plurality of LED (Light Emitting Diode) modules 132.

The board 131 is a mounting board having a mounting surface for mounting the LED module 132. The substrate 131 is formed in a substantially disk shape. The substrate 131 is fixed to the mounting surface of the flange portion 112 of the instrument main body 110 by a fixing member such as a screw so as to cover the accommodating body of the instrument main body 110 when viewed in the positive direction of the Z axis. Specifically, the substrate 131 is fixed to the instrument main body 110 in a posture substantially parallel to the XY plane so that the mounting surface faces the Z minus direction.

Examples of the substrate 131 include a metal base substrate obtained by applying an insulating coating to a base material made of a metal material such as aluminum or copper, a ceramic substrate which is a sintered body of a ceramic material such as alumina, or a resin material. A resin substrate or the like as a base is used. The substrate 131 may be a printed wiring board, a rigid substrate, or a flexible substrate.

The plurality of LED modules 132 are arranged on the mounting surface of the substrate 131. The plurality of LED modules 132 are arranged in a plurality of annular rows by the substrate 131, that is, arranged concentrically. In this embodiment, the LED modules 132 are arranged in four rows in the radial direction.

The plurality of LED modules 132 are configured to emit white light, for example. Specifically, the plurality of LED modules 132 are composed of COB (Chip On Board) type LED elements, and a plurality of blue LEDs which are bare chips (LED chips) mounted on the substrate 131 and those blue LEDs are sealed. It has a stop and a sealing member containing a yellow LED. Further, the plurality of LED modules 132 may emit light of two or more colors. Specifically, the plurality of LED modules 132 are RGB three-color LED light sources, emit three-color monochromatic light of red light, blue light, and green light, and dimm the three-color monochromatic light. The color light or white light obtained by the above may be emitted.

Further, the plurality of LED modules 132 may be surface mount (SMD: Surface Mount Device) type LED elements in which LEDs are packaged, and may be a container (package) and a plurality of LED chips mounted in the container. And a sealing member for sealing a plurality of LED chips. The sealing member is a translucent insulating resin material such as a silicone resin. A light diffusing material such as silica and a filler may be dispersed in the sealing member.

In the present embodiment, the plurality of LED modules 132 irradiate light in a direction substantially parallel to the Z-axis minus direction. Specifically, the optical axes of the plurality of LED modules 132 are the main emission directions of light, and are directions substantially parallel to the negative direction of the Z axis.

[Diffusion cover 140]
The diffusion cover 140 is an optical member that covers the light source 130 when viewed in the negative direction of the Z axis and diffuses and emits the light incident from the light source 130 to the outside. The diffusion cover 140 is supported by the instrument body 110 at a predetermined distance from the light source 130. Specifically, the diffusion cover 140 has a circular shape when viewed from the Z-axis direction, and is supported by the outer peripheral edge of the flange portion 112 of the instrument main body 110.

The diffusion cover 140 is translucent. For example, the diffusion cover 140 is made of a translucent material such as acrylic resin. For example, the diffusion cover 140 may use a milky white diffusion panel in which a light diffusing material is dispersed inside. Further, fine irregularities (textures) may be formed on the surface 10a of the diffusion cover 140 by embossing or the like. As a result, the light incident on the diffusion cover 140 due to the light emission of the light source 130 is scattered by passing through the diffusion cover 140. As a result, the brightness unevenness that appears on the diffusion cover 140 when the diffusion cover 140 is viewed from the negative direction of the Z axis is reduced.

[Power supply unit 150]
The power supply unit 150 is a power supply module having a lighting circuit for supplying electric power for lighting the light source 130. The power supply unit 150 converts the alternating current supplied from an external power source such as a commercial power source via the hook sealing 3 and the adapter 10 into a predetermined level of DC power by rectifying, smoothing, stepping down, or the like. The power supply unit 150 supplies the converted direct current to the light source 130 via a lead wire or the like. The power supply unit 150 may be combined with a dimming circuit, a booster circuit, or the like.

The power supply unit 150 is composed of, for example, a printed circuit board on which metal wiring having a predetermined shape is formed, a plurality of circuit elements mounted on the printed circuit board, and the like. The circuit element is an electronic component for causing the light source 130 to emit light. For example, a capacitive element (electrolytic capacitor, ceramic capacitor, etc.), a resistance element (resistor, etc.), a rectifying circuit element, a coil element, a choke coil (choke transformer). , An integrated circuit element (IC), a semiconductor element (FET, etc.), or the like.

The power supply unit 150 is housed in the storage unit 111 of the instrument main body 110 and is arranged between the light source 130 and the holder 120. The power supply unit 150 is fixed to the accommodating unit 111 with a fixing member such as a screw.

<Operation>
First, a case where the adapter 10 is attached to the hook sealing 3 will be described.

As shown in FIGS. 1 and 4, each power supply port 3a of the hook sealing 3 is aligned with the first locking portion 31 and the second locking portion 32 of the adapter 10, and the first locking portion 31 and the second locking portion 32 of the adapter 10 are aligned with each other. The first locking portion 31 and the second locking portion 32 are inserted to rotate the adapter 10 in the circumferential direction of the central axis O of the adapter 10. As a result, the adapter 10 is electrically and mechanically connected to and fixed to the hook sealing 3.

Next, a case where the luminaire 100 is attached to the adapter 10 will be described.

As shown in FIGS. 2, 4 and 5, the luminaire 100 is aligned so that the holder 120 of the luminaire 100 and the adapter 10 overlap each other, and the luminaire 100 is inserted from the insertion port 122a of the holder 120. Push up. At this time, the first locking portion 31 and the second locking portion 32 of the adapter 10 and the locked portion 122b of the holder 120 are in contact with each other and slide while the first locking portion 31 and the second locking portion 31 and the second locking portion. When the 32 is pressed against the locked portion 122b, it moves in the direction of the central axis O of the adapter 10. As a result, the adapter 10 can be inserted from the insertion port 122a of the holder 120 of the luminaire 100.

When the adapter 10 is inserted into the holder 120 of the luminaire 100, the first locking portion 31 and the second locking portion 32 move in the outer diameter direction of the adapter 10 by the urging force of the elastic member 40. The outer peripheral surface 37 of the fixing portion 35 of the first locking portion 31 and the outer peripheral surface 37 of the fixing portion 35 of the second locking portion 32 abut on the inner peripheral surface of the locked portion 122b, and the first locking portion 31 The second contact surface 36a of the temporary fixing portion 36 and the second contact surface 36a of the temporary fixing portion 36 of the second locking portion 32 come into contact with the locked portion 122b. That is, the locked portion 122b is in the second state of being temporarily fixed to the temporary fixing portion 36 of the first locking portion 31 and the temporary fixing portion 36 of the second locking portion 32. Is not electrically connected. That is, the first feeding terminal 123a of the holder 120 is not electrically connected to the other end 53a of the third terminal 53, and the second feeding terminal 123b of the holder 120 is electrically connected to the other end 54a of the fourth terminal 54. Not connected to.

Further, when the adapter 10 is inserted into the holder 120 of the luminaire 100, the inner peripheral surface of the locked portion 122b, the outer peripheral surface 37 of the fixing portion 35 of the first locking portion 31, and the second locking portion 32 After the outer peripheral surface 37 of the fixing portion 35 slides, the first locking portion 31 and the second locking portion 32 further move in the outer diameter direction of the adapter 10 by the urging force of the elastic member 40. That is, when the locked portion 122b is separated from the fixing portion 35 of the first locking portion 31 and the fixing portion 35 of the second locking portion 32, the first locking portion 31 and the second locking portion 31 and the second are caused by the urging force of the elastic member 40. The locking portion 32 returns to its original posture. The positions of the first locking portion 31 and the second locking portion 32 shown by the alternate long and short dash line in FIG. 5 are displaced to the positions of the first locking portion 31 and the second locking portion 32 shown by the solid line. At this time, the first power feeding terminal 123a of the holder 120 is inserted into the first insertion port 22a and electrically connected to the other end 53a of the third terminal 53. Further, the second power feeding terminal 123b of the holder 120 is inserted into the second insertion port 22b and electrically connected to the other end 54a of the fourth terminal 54.

Due to the gravity of the luminaire 100, the Z-axis minus side surface of the locked portion 122b of the holder 120 and the first contact surface 35a and the second locking portion 32 of the fixing portion 35 of the first locking portion 31 are fixed. The first contact surface 35a of the portion 35 comes into contact with the first contact surface 35a. As a result, the luminaire 100 is fixed to the adapter 10 in a normal state and firmly held, so that the luminaire 100 receives power from the hook sealing 3.

Next, a case where the luminaire 100 is removed from the adapter 10 will be described.

FIG. 7 is a plan view of the lighting device 1 according to the embodiment as viewed from the hook sealing 3 side. FIG. 8A is a partially enlarged cross-sectional view showing the relationship between the adapter 10 and the holder 120 in the line VIII-VIII of FIG. 7. FIG. 8B is a partially enlarged cross-sectional view showing a state in which the holder 120 of FIG. 8A is rotated in the direction of the arrow of FIG. 9A is a diagram showing a cross-sectional view of the holder 120 and a plan view of the adapter 10 in the relationship between the adapter 10 and the holder 120 in the state of FIG. 8A. FIG. 9B is a diagram showing a cross-sectional view of the holder 120 and a plan view of the adapter 10 in the relationship between the adapter 10 and the holder 120 in the state of FIG. 8B.

As shown in FIGS. 7, 8A and 8B, when the luminaire 100 is rotated in the circumferential direction of the central axis O (the direction of the arrow in FIG. 7), the first convex portion 124 of the holder 120 and the main body of the adapter 10 are formed. The second convex portion 21e of the portion 21 comes into contact with the second convex portion 21e, and the second convex portion 21e pushes down the luminaire 100 in the negative direction of the Z axis while sliding the first convex portion 124. At this time, as shown in FIGS. 9A and 9B, the third convex portion 125 in the holder 120 comes into contact with the fixing portion 35 of the first locking portion 31 and the fixing portion 35 of the second locking portion 32 and slides. However, the fixing portion 35 of the first locking portion 31 and the fixing portion 35 of the second locking portion 32 are pressed by the respective third convex portions 125, so that the first locking portion 31 and the second locking portion are pressed. 32 moves in the direction of the central axis O of the adapter 10.

FIG. 10 is a partially enlarged cross-sectional view showing a second state in which the luminaire 100 according to the embodiment is temporarily fixed to the adapter 10.

As a result, as shown in FIG. 10, the first contact surface 35a of the fixing portion 35 of the first locking portion 31 and the first contact surface 35a of the fixing portion 35 of the second locking portion 32 become the holder 120. Since the luminaire 100 moves in the negative direction of the Z axis away from the contact surface 122b1 of the locked portion 122b (the first state is eliminated), the locked portion 122b is temporarily fixed to the first locked portion 31. The second contact surface 36a of 36 and the second contact surface 36a of the temporary fixing portion 36 of the second locking portion 32 come into contact with each other. The positions of the first locking portion 31 and the second locking portion 32 shown by the alternate long and short dash line in FIG. 10 are displaced to the positions of the first locking portion 31 and the second locking portion 32 shown by the solid line. At this time, the first power feeding terminal 123a of the holder 120 is separated from the other end 53a of the third terminal 53 and is electrically disconnected. Further, the second power feeding terminal 123b of the holder 120 is separated from the other end 54a of the fourth terminal 54 and is electrically disconnected. In this way, the luminaire 100 is held by the adapter 10 in a second state temporarily fixed to the temporary fixing portion 36 of the first locking portion 31 and the temporary fixing portion 36 of the second locking portion 32.

Then, when the luminaire 100 is pushed down in the negative direction of the Z axis, the locked portion 122b becomes the second contact surface 36a of the temporary fixing portion 36 of the first locking portion 31 and the temporary fixing portion of the second locking portion 32. The first locking portion 31 and the second locking portion 32 move in the direction of the central axis O of the adapter 10 by being pressed against the locked portion 122b while sliding in contact with the second contact surface 36a of the 36. To do. As a result, the luminaire 100 can be removed from the adapter 10.

<Effect>
Next, the effects of the adapter 10, the lighting device 1, and the lighting device 100 in the present embodiment will be described.

As described above, the adapter 10 in the present embodiment is an adapter 10 for electrically and mechanically connecting the hook ceiling 3 and the luminaire 100, and can be attached to and detached from the hook ceiling 3 to which electric power is supplied. A plurality of hooking blades 51a and 52a fixed to the adapter 10 and a back surface 10b on the side opposite to the front surface 10a on which the plurality of hooking blades 51a and 52a are provided in the adapter 10 A connector portion 70 for supplying electric power to the lighting fixture 100 is provided. The connector portion 70 is provided so as to surround the first power supply unit 70a that is electrically connected to the first power supply terminal 123a provided in the luminaire 100 and the first power supply terminal 123a provided in the luminaire 100. It has a second power feeding unit 70b that is electrically connected to the power feeding terminal 123b.

According to this, by aligning the connector portion 70 of the luminaire 100 and the adapter 10 so as to overlap each other and pushing up the luminaire 100, the connector portion 70 of the luminaire 100 and the adapter 10 are electrically and mechanically connected to each other. You can connect. That is, it is not necessary to disassemble the luminaire 100 and electrically connect the wiring of the luminaire 100 and the adapter 10 as in the conventional case.

Therefore, in this adapter 10, the lighting fixture 100 and the adapter 10 can be easily connected by eliminating the wiring of the lighting fixture 100.

In particular, since the adapter 10 can eliminate the conventional wiring of the lighting fixture, the number of parts of the lighting fixture 100 of the present embodiment can be reduced. As a result, it is possible to suppress an increase in the manufacturing cost of the lighting fixture 100.

Further, in the luminaire 100 according to the present embodiment, the luminaire 100 is electrically connected to the hook ceiling 3 via the adapter 10, is a holder fixed to the luminaire 100, and the adapter 10 is attached and detached. A first power supply terminal 123a provided in a holder that can be freely attached and connected to the first power supply unit 70a of the adapter 10 and a first power supply terminal 123a provided so as to surround the first power supply terminal 123a and connected to the second power supply unit 70b of the adapter 10. A second power supply terminal 123b is provided.

The lighting fixture 100 also has the same effect as described above.

Further, in the adapter 10 of the present embodiment, the first power supply terminal 123a and the second power supply terminal 123b of the lighting equipment 100 are convex terminals extending in the attachment / detachment direction, and the first power supply unit 70a and the first power supply terminal 70a of the adapter 10 (2) The power supply unit 70b is a concave power supply unit into which the first power supply terminal 123a and the second power supply terminal 123b are inserted, or the first power supply terminal 123a and the second power supply terminal 123b of the lighting fixture 100 have a concave shape extending in the attachment / detachment direction. The first power supply unit 70a and the second power supply unit 70b of the adapter 10 are convex power supply units to be inserted into the first power supply terminal 123a and the second power supply terminal 123b.

According to this, it is possible to reliably establish the electrical and mechanical connection between the luminaire 100 and the adapter 10 simply by pushing the luminaire 100 into the adapter 10.

Further, in the adapter 10 of the present embodiment, the second power feeding unit 70b is arranged concentrically around the first power feeding unit 70a.

According to this, the luminaire 100 can be rotated with respect to the adapter 10. Therefore, even if a force for rotating the luminaire 100 is applied, it is difficult for an excessive torque to be applied to the luminaire 100, so that damage to parts constituting the luminaire 100 can be suppressed.

Further, the adapter 10 in the present embodiment is an adapter 10 for electrically and mechanically connecting the hook ceiling 3 and the luminaire 100, and is a hook that is electrically connected to the wiring to which electric power is supplied. A plurality of hook blades 51a and 52a detachably fixed to the sealing 3 and a plurality of hook blades 51a provided on the front surface 10a on the side where the plurality of hook blades 51a and 52a are provided in the adapter 10 and the back surface 10b on the opposite side are provided. , 52a, a connector portion 70 that conducts power to the luminaire 100, and a first locking portion 31 that fixes the luminaire 100 to the adapter 10 by projecting freely from the outer peripheral surface 10c of the adapter 10. A second locking portion 32 is provided. Further, each of the first locking portion 31 and the second locking portion 32 has a fixing portion 35 for fixing the lighting fixture 100 to the adapter 10 and a covering portion 35 by locking the locked portion 122b of the lighting fixture 100. It has a temporary fixing portion 36 that temporarily fixes the luminaire 100 to the adapter 10 by engaging with the locking portion 122b. Further, the temporary fixing portion 36 has a contact surface 122b1 that comes into contact with the locked portion 122b when the luminaire 100 is temporarily fixed to the adapter 10. The contact surface 122b1 is a second contact surface 36a that inclines downward from the outer peripheral surface 10c of the adapter 10 with respect to the virtual plane V orthogonal to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3.

According to this, when the luminaire 100 is removed from the hook sealing 3, for example, by rotating the luminaire 100, it is locked with the fixing portions 35 of the first locking portion 31 and the second locking portion 32, respectively. The lock with the portion 122b is released. When the locking is released, the luminaire 100 moves vertically downward with respect to the adapter 10 due to its own weight, but since the locked portion 122b and the temporary fixing portion 36 are engaged, the luminaire 100 is an adapter. It is caught in 10 and the fall of the lighting fixture 100 is suppressed.

Therefore, according to the adapter 10, even if the lighting device 1 is suddenly moved, the falling of the lighting device 1 can be suppressed.

In particular, since the contact surface of the temporary fixing portion 36 is the second contact surface 36a, even if the locked portion 122b and the temporary fixing portion 36 are engaged, if the luminaire 100 is pushed down, the first engagement is performed. By moving the stopping portion 31 and the second locking portion 32, the engagement between the locked portion 122b and the temporarily fixing portion 36 is released. Therefore, the lighting fixture 100 can be removed reliably and safely.

Further, the lighting device 1 in the present embodiment includes an adapter 10 and a lighting fixture 100 that is electrically connected to the adapter 10.

The lighting fixture 100 also has the same effect as described above.

Further, the adapter 10 according to the present embodiment includes a first locking portion 31 and a second locking portion 32 for fixing the luminaire 100 to the adapter 10 by projecting forward and backward from the outer peripheral surface 10c of the adapter 10. Each of the first locking portion 31 and the second locking portion 32 is in the first state in which when the luminaire 100 is fixed to the adapter 10, the first amount A1 protrudes from the outer peripheral surface 10c of the adapter 10. ..

According to this, in the first state, the fixing portions 35 of the first locking portion 31 and the second locking portion 32 are locked to the locked portion 122b, so that the luminaire 100 moves in the vertical direction. Can be suppressed. Therefore, even if the luminaire 100 is unexpectedly moved, the first locking portion 31 and the second locking portion 32 can securely fix the luminaire 100 to the adapter 10. As a result, the adapter 10 can further suppress the fall of the lighting device 1.

Further, in the adapter 10 of the present embodiment, each of the first locking portion 31 and the second locking portion 32 is the first from the outer peripheral surface 10c of the adapter 10 when the luminaire 100 is temporarily fixed to the adapter 10. The second state is such that only the second quantity A2, which is less than the one quantity A1, protrudes.

According to this, even if the first state is released, the transition from the first state to the second state is performed, so that the temporary fixing portions 36 of the first locking portion 31 and the second locking portion 32 adapter the luminaire 100. It can be held in a predetermined posture at 10. As a result, the adapter 10 can further suppress the fall of the lighting device 1.

Further, in the adapter 10 of the present embodiment, when the adapter 10 is cut in a plane including the central axis O of the adapter 10 and parallel to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3, the first locking portion 31 and the first When the locked portion 122b of the lighting fixture 100 is locked by the locked portion 32 in the first state, the first of the first locking portion 31 and the second locking portion 32 that come into contact with the locked portion 122b. The first locking portion 31 and the second locking portion 32 are engaged in the first state at the first angle θ1 formed by the contact surface 35a and the outer peripheral surface 10c parallel to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3. The locking force in the removal direction when locking the stop portion 122b is locked when the first locking portion 31 and the second locking portion 32 engage with the locked portion 122b in the second state. At the second angle θ2 formed by the second contact surface 36a of the first locking portion 31 and the second locking portion 32 that abut the portion 122b and the outer peripheral surface 10c parallel to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3. , The first locking portion 31 and the second locking portion 32 are larger than the locking force in the removing direction when engaging with the locked portion 122b in the second state.

According to this, it is easier to remove the luminaire 100 from the adapter 10 in the second state than in the first state. Therefore, in the first state, the vertical movement of the luminaire 100 with respect to the adapter 10 is suppressed, so that the luminaire 100 can be securely fixed to the adapter 10. Further, in the second state, the luminaire 100 can be easily removed from the adapter 10 as compared with the first state.

Further, in the adapter 10 of the present embodiment, the connector portion 70 is detachably provided with respect to the connector portion 123 of the luminaire 100, and is electrically connected to the connector portion 123 of the luminaire 100 in the first state. Then, in the second state, it is electrically disconnected from the connector portion 123 of the luminaire 100.

According to this, since power is supplied to the luminaire 100 in the first state, the lighting of the luminaire 100 ensures that the luminaire 100 and the adapter 10 are electrically and mechanically connected. The user can recognize that the mark has been removed. Further, in the second state, power is not supplied to the luminaire 100, so that the luminaire 100 does not light up, so that the electrical connection and the mechanical connection between the luminaire 100 and the adapter 10 are incomplete. The user can recognize that. In this case, the user attaches the luminaire 100 to the adapter 10 so as to securely fix the luminaire 100 to the adapter 10. As a result, in this adapter 10, the fall of the luminaire 100 is easily suppressed.

Further, the adapter 10 in the present embodiment includes a housing 20 provided with a plurality of hook blades 51a and 52a, a connector portion 70, a first locking portion 31, and a second locking portion 32. Further, in the housing 20, the luminaire 100 is fixed to the adapter 10 by rotating the luminaire 100 in a predetermined direction, so that the first state of protrusion by the first amount is released from the second convex portion 21e. Is formed.

For example, when removing the luminaire 100 from the adapter 10, the user may continue to rotate the luminaire 100 without knowing how to remove it.

However, according to the present embodiment, by rotating the luminaire 100 in a predetermined direction, the second convex portion 21e of the adapter 10 and the first convex portion 124 of the luminaire 100 come into contact with each other and slide. , The rotational force of the luminaire 100 becomes the urging force vertically downward. This allows the user to recognize the vertical downward movement of the luminaire 100. As a result, according to the adapter 10, the luminaire 100 can be safely and easily removed.

Further, in the adapter 10 of the present embodiment, when the first state in which the luminaire 100 is fixed to the adapter 10 is released, the second convex portion 21e becomes the first convex portion 124 formed on the luminaire 100. By engaging, the luminaire 100 temporarily fixes to the adapter 10 by shifting the first state fixed to the adapter 10 to the second state of temporary fixing.

According to this, the luminaire 100 can be changed from the first state to the second state. As a result, the fall of the lighting fixture 100 can be reliably suppressed.

Further, in the lighting device 1 of the present embodiment, the holder 120 is engaged with the second convex portion 21e formed on the adapter 10 by rotating the lighting device 100 in a predetermined direction, thereby engaging with the lighting device. A first convex portion 124 is formed that transitions the state of the adapter 10 fixed to 100 to the state of temporary fixing.

The lighting device 1 also has the same effect as described above.

Further, in the lighting device 1 of the present embodiment, the lighting fixture 100 has a light source 130, a fixture main body 110 accommodating the light source 130, and a holder 120 to which the adapter 10 is detachably attached. Then, when the luminaire 100 is rotated in a predetermined direction, the holder 120 comes into contact with each of the first locking portion 31 and the second locking portion 32, so that the first locking portion 120 with respect to the outer peripheral surface 10c A third convex portion 125 that changes the amount of protrusion of the locking portion 31 and the second locking portion 32 is formed.

According to this, by rotating the luminaire 100 in a predetermined direction, the first locking portion 31 and the second locking portion 32 are pushed by the third convex portion 125, and the first locking portion 31 and the second locking portion 31 and the second are pushed. The locking portion 32 moves inside the adapter 10. As a result, the luminaire 100 and the adapter 10 are released from the first state and transition to the second state. As a result, according to the adapter 10, the luminaire 100 can be safely and easily removed.

(Modified example of the embodiment)
The configuration of the adapter 10, the lighting device 1, and the lighting fixture 100 of this modification will be described.

FIG. 11A is a partially enlarged cross-sectional view showing a first state in which the luminaire 100 is normally fixed to the adapter 10 in the modified example of the embodiment. FIG. 11B is a partially enlarged cross-sectional view showing a first state in which the luminaire 100 is normally fixed to the adapter 10 in the modified example of the embodiment.

This modification is different from the embodiment in that the holder 120a of the luminaire 100 is provided with two locked portions.

Unless otherwise specified, the other configurations in this modification are the same as those in the embodiment, and the same configurations are designated by the same reference numerals and detailed description of the configurations will be omitted.

The outer peripheral wall portion 121 of the holder 120a has a first locked portion 222a and a second locked portion 222b.

The first locked portion 222a is engaged in each of the first locking portion 31 and the second locking portion 32 when the luminaire 100 is normally fixed to the adapter 10 in the first state. It comes into contact with the fixing portion 35 of the stop body 33. More specifically, in the first state, the fourth contact surface 222a1, which is the surface of the first locked portion 222a on the negative direction side of the Z axis (the surface facing the fixed portion 35), is the fixed portion 35. It comes into contact with the first contact surface 35a.

The first locked portion 222a is an annular convex portion formed on the Z-axis minus direction side with respect to the second locked portion 222b, and the inner diameter of the outer peripheral wall portion 121 is adjusted from the inner peripheral surface of the outer peripheral wall portion 121. It overhangs to narrow it. The first locked portion 222a is formed on the inner peripheral surface of the outer peripheral wall portion 121, and is located between the second locked portion 222b and the bottom portion 122 of the holder 120a.

The second locked portion 222b is a locking main body 33 in each of the first locking portion 31 and the second locking portion 32 when the luminaire 100 is temporarily fixed to the adapter 10 in the second state. In contact with the temporary fixing portion 36 of. More specifically, in the second state, the third contact surface 222b1, which is the surface of the second locked portion 222b on the negative direction side of the Z axis (the surface facing the temporary fixing portion 36), is the temporary fixing portion. It abuts or faces the second contact surface 36a of 36.

The second locked portion 222b is an annular convex portion formed on the edge of the outer peripheral wall portion 121 of the holder 120a on the Z-axis plus direction side, and is formed from the inner peripheral surface of the outer peripheral wall portion 121 to the outer peripheral wall portion 121. It overhangs so as to narrow the inner diameter. The second locked portion 222b has substantially the same diameter as the first locked portion 222a in a plan view of the holder 120a, but may have a larger diameter than the first locked portion 222a. The diameter may be smaller than that of the locked portion 222a.

As described above, the lighting fixture 100 in the present modification is the lighting fixture 100 that is electrically connected to the hook ceiling 3 via the adapter 10, and includes the light source 130, the fixture main body 110 accommodating the light source 130, and the fixture. It includes a holder 120a that is fixed to the main body 110 and to which the adapter 10 can be detachably attached. Further, the holder 120a is formed with a locked portion 122b for fixing the luminaire 100 to the adapter 10 by projecting so as to approach the adapter 10. Further, the locked portion 122b is locked to the fixed portion 35 formed on the outer peripheral surface 10c of the adapter 10, so that the first locked portion 222a for fixing the luminaire 100 to the adapter 10 and the adapter 10 The luminaire 100 has a second locked portion 222b that is temporarily fixed to the adapter 10 by engaging with the temporary fixing portion 36 formed on the outer peripheral surface of the luminaire 100. Further, the second locked portion 222b has a third contact surface 222b1 that comes into contact with the temporarily fixed portion 36 when the luminaire 100 is temporarily fixed to the adapter 10.

In such a modified example as well, the same action and effect as those of the embodiment can be obtained.

(Other modifications, etc.)
Although the embodiments and modifications of the embodiments have been described above, the present disclosure is not limited to the above-described embodiments and modifications of the embodiments.

For example, the luminaire and the luminaire described in the above-described embodiment and the modified examples of the embodiment are examples, and the specific mode of the luminaire and the luminaire is not particularly limited. The luminaire and luminaire may be in any form as long as they are connected to the hook sealing body using an adapter.

Further, in the adapter, the luminaire, and the luminaire described in the above-described embodiment and the modified examples of the embodiment, the plurality of locking portions may be one integrated member.

Further, in the adapter, the luminaire, and the luminaire described in the above-described embodiment and the modification of the embodiment, the connector portion of the adapter is concave, but it may be a convex connector portion. That is, the other end of the third terminal and the other end of the fourth terminal of the connector may be configured to protrude from the first insertion port and the second insertion port. In this case, the first power supply terminal and the second power supply terminal may be recessed from the bottom of the holder. That is, the connector portion of the adapter may be a male connector portion, and the power feeding portion of the socket may be a female connector portion. That is, in the adapter 10, the first power supply terminal and the second power supply terminal of the luminaire are convex terminals extending in the attachment / detachment direction, and the first power supply portion and the second power supply portion of the adapter are the first power supply terminal and the second power supply terminal. (2) Although it is a concave power supply terminal into which a power supply terminal is inserted, the first power supply terminal and the second power supply terminal of the lighting equipment are concave terminals extending in the attachment / detachment direction, and the first power supply part and the second power supply of the adapter. The portion may be a convex feeding portion inserted into the first feeding terminal and the second feeding terminal.

Further, the specific mode of the hook sealing body is not particularly limited. As the hook sealing body, a round full hook ceiling, a full hook rosette, a round hook ceiling, a square hook ceiling, a hook embedded rosette, a hook exposed rosette and the like are used.

In addition, a form obtained by applying various modifications that can be conceived by those skilled in the art to the embodiment and the modified example of the embodiment, and components in the embodiment and the modified example of the embodiment without departing from the spirit of the present disclosure. And the forms realized by any combination of functions are also included in the present disclosure.

1 Lighting device 3 Hook ceiling 10 Adapter 10a Front surface 10b Back surface 10c Outer peripheral surface 20 Housing 21e Second convex portion 31 First locking portion (locking portion)
32 Second locking part (locking part)
51a, 52a Hooking blade 70 Connector part 70a First power supply part 70b Second power supply part 100 Lighting equipment 110 Equipment body 120, 120a Holder 122b Locked part 122b1 Contact surface 123 Connector part 123a First power supply terminal 123b Second power supply Terminal 124 First convex portion 125 Third convex portion 130 Light source

Claims (13)

An adapter for electrically and mechanically connecting a hook ceiling and a luminaire.
A plurality of hook blades that are detachably fixed to the hook ceiling to which electric power is supplied, and
The adapter is provided on the front surface on the side opposite to the front surface on which the plurality of hook blades are provided, and includes a connector portion that conducts with the plurality of hook blades and supplies electric power to the lighting fixture.
The connector part
A first power supply unit that electrically connects to the first power supply terminal provided in the luminaire,
An adapter having a second power supply terminal electrically connected to a second power supply terminal provided so as to surround the first power supply terminal provided in the luminaire. The first power supply terminal and the second power supply terminal of the luminaire are convex terminals extending in the attachment / detachment direction, and the first power supply unit and the second power supply unit of the adapter are the first power supply terminal and the first power supply terminal. It is a concave power supply unit into which the second power supply terminal is inserted, or
The first power supply terminal and the second power supply terminal of the luminaire are concave terminals extending in the attachment / detachment direction, and the first power supply unit and the second power supply unit of the adapter are the first power supply terminal and the second power supply terminal. The adapter according to claim 1, which is a convex power feeding unit to be inserted into the second power feeding terminal. The adapter according to claim 1 or 2, wherein the second feeding portion is arranged concentrically around the first feeding portion. It is provided with one or more locking portions for fixing the luminaire to the adapter by projecting freely from the outer peripheral surface of the adapter.
Any one of claims 1 to 3 in which each of the one or more locking portions is in a first state in which when the luminaire is fixed to the adapter, it protrudes by a first amount from the outer peripheral surface of the adapter. The adapter described in the section. Each of the one or more locking portions is in a second state in which when the luminaire is temporarily fixed to the adapter, a second amount smaller than the first amount protrudes from the outer peripheral surface of the adapter. Item 4. The adapter according to item 4. When the adapter is cut in a plane including the central axis of the adapter and parallel to the attachment / detachment direction of the adapter with respect to the hook sealing, the one or more locking portions are locked in the lighting fixture in the first state. When locking the portions, the first contact surfaces of the one or more locking portions that come into contact with the locked portion and the outer peripheral surface parallel to the attachment / detachment direction of the adapter with respect to the hook sealing are formed. When the one or more locking portions lock the locked portion in the first state at the first angle formed, the locking force in the removal direction is such that the one or more locking portions are in the second state. When engaging with the locked portion, the second contact surface of each of the one or more locking portions that abuts with the locked portion is parallel to the attachment / detachment direction of the adapter with respect to the hook sealing. The fifth aspect of claim 5, wherein the one or more locking portions at the second angle formed by the outer peripheral surface are larger than the locking force in the removing direction when the locked portion engages with the locked portion in the second state. Adapter. The connector part
Detachable from the connectored portion of the lighting fixture,
In the first state, it is electrically connected to the connector portion of the luminaire.
The adapter according to claim 5 or 6, which is electrically disconnected from the connector-attached portion of the luminaire in the second state. A housing provided with the plurality of hook blades, the connector portion, and one or more locking portions is provided.
The housing has a second convex portion that releases the first state by rotating the luminaire in a predetermined direction so that the luminaire is fixed to the adapter and protrudes by the first amount. The adapter according to any one of claims 5 to 7, which is formed. When the first state in which the luminaire is fixed to the adapter is released, the second convex portion engages with the first convex portion formed on the luminaire, whereby the luminaire is said to be said. The adapter according to claim 8, wherein the first state fixed to the adapter is transitioned to the second state of temporary fixing, and the luminaire is temporarily fixed to the adapter. The adapter according to any one of claims 1 to 9,
A luminaire comprising the adapter and a luminaire that is electrically connected. The lighting equipment
Light source and
The fixture body that houses the light source and
It has a holder to which the adapter can be attached and detached.
When the luminaire is rotated in a predetermined direction, the holder is brought into contact with each of the one or more locking portions to change the amount of protrusion of the one or more locking portions with respect to the outer peripheral surface of the adapter. The lighting device according to claim 10, wherein a third convex portion is formed. By rotating the luminaire in a predetermined direction and engaging with the second convex portion formed on the adapter, the holder is temporarily fixed to the state of the adapter fixed to the luminaire. The lighting device according to claim 11, wherein a first convex portion for transitioning to a state is formed. A luminaire that is electrically connected to the hook ceiling via an adapter.
A holder fixed to the luminaire, provided in a holder to which the adapter can be detachably attached, and a first power supply terminal connected to a first power supply portion of the adapter.
A lighting fixture including a second power supply terminal connected to a second power supply unit of the adapter provided so as to surround the first power supply terminal.

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