JP2021174681A - Adapter and lighting device - Google Patents

Abstract

To provide an adapter controlling deterioration in appearance a lighting fixture and suppressing swing of the lighting fixture, and to provide a lighting device.SOLUTION: An adapter 10 includes a connector part 70 having a first power feed part 70a electrically connected to a first power feed terminal 123a and a second power feed part 70b electrically connected to a second power feed terminal 123b surrounding the first power feed terminal 123a. The first power feed part 70a includes a first connection terminal 50a electrically connected to the first power feed terminal 123a. The second power feed part 70b is formed so as to surround the periphery of the first connection terminal 50a, and includes a second insertion port part 22b engaged with the second power feed terminal 123b and a second connection terminal 50b electrically connected to the second power feed terminal 123b engaged with the second insertion port part 22b. The second insertion port part 22b includes a projection part 22c abutting on the second power feed terminal 123b so as to support the second power feed terminal 123b.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to adapters and lighting devices.

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).

Japanese Patent No. 6152940

However, there is a desire to further suppress the shaking of the luminaire with respect to the adapter after electrically and mechanically connecting the luminaire and the hook ceiling, as compared with the adapter of Patent Document 1. Therefore, it is conceivable to provide the luminaire with packing or the like that comes into contact with the wall surface on which the hook sealing is arranged to suppress the luminaire from shaking with respect to the adapter. However, there are problems in the appearance of the lighting equipment such as the packing and the like being visible.

Therefore, the present disclosure provides an adapter and a lighting device capable of suppressing deterioration of the appearance of the lighting equipment and suppressing shaking of the lighting equipment.

The adapter according to one aspect of the present disclosure is an adapter for electrically and mechanically connecting the hook ceiling and the luminaire, and is the first adapter for electrically connecting the first power supply terminal provided in the luminaire. A connector portion having a power supply unit and a second power supply unit that is electrically connected to a second power supply terminal provided in the lighting fixture so as to surround the first power supply terminal is provided, and the first power supply unit is the first power supply unit. It has a first connection terminal that is electrically connected to the first power supply terminal, and the second power supply portion is formed so as to surround the first connection terminal and engages with the second power supply terminal. The first engaging portion has an engaging portion and a second connecting terminal that is electrically connected to the second feeding terminal that is engaged with the first engaging portion, and the first engaging portion is the second feeding terminal. It has a protrusion that comes into contact with the second power feeding terminal so as to support the second feeding terminal.

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

The adapters and the like of the present disclosure can suppress deterioration of the appearance of the luminaire and suppress the shaking of the luminaire.

FIG. 1 is a perspective view showing a lighting device and a hook ceiling having a luminaire and an adapter in the embodiment, and a partially enlarged view of a cutout portion of the housing. FIG. 2 is a cross-sectional view of the lighting device in line II-II of FIG. FIG. 3 is an exploded perspective view showing the adapter according to the embodiment. FIG. 4 is a partially enlarged cross-sectional view showing the first state in which the luminaire in the IV-IV line of FIG. 1 is normally fixed to the adapter. FIG. 5 is a plan view of the adapter according to the embodiment and a partially enlarged view showing a pair of elastic claws and protrusions of the adapter. FIG. 6A is a cross-sectional view of the adapter along the VIA-VIA line of FIG. FIG. 6B is a cross-sectional view of the adapter along the VIB-VIB line of FIG. FIG. 7 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. 8 is a side view showing a case where the second locking portion is viewed from the side. FIG. 9 is a side view showing a case where the second locking portion is viewed from the front. FIG. 10 is a cross-sectional view showing an adapter in line XX of FIG. FIG. 11 is a plan view of the adapter showing a state in which the unlock button is pressed in the embodiment. FIG. 12 is a plan view of the adapter shown in the XII-XII line of FIG. 11 in a state where the unlock button is pressed. FIG. 13 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. 14 is a perspective view showing a lighting device having a luminaire and an adapter and a hook ceiling. FIG. 15 is a partially enlarged cross-sectional view showing the first state in which the luminaire is normally fixed to the adapter.

It should be noted that all of the embodiments described below show comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, 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. In addition, 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 showing a lighting device 1 and a hook ceiling 3 having a lighting fixture 100 and an adapter 10 in an embodiment, and a partially enlarged view of a cutout portion 21h of a housing 20. FIG. 2 is a cross-sectional view of the illuminating device 1 in line II-II of FIG.

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. 3 is an exploded perspective view showing the adapter 10 in the embodiment.

As shown in FIGS. 1 to 3, the lighting device 1 includes an adapter 10 and a lighting fixture 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 sealing 3 by being rotated with respect to the hook sealing 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. The first terminal 51 and the third terminal 53 form the first connection terminal 50a. The second terminal 52 and the fourth terminal 54 form the second connection terminal 50b.

[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 connection terminal 50a, a second connection terminal 50b, a connector portion 70, and a first locking portion 31 and a second locking portion 32.

The housing 20 is formed with a surface 10a, which is a surface facing the hook sealing 3 and a mounting surface, and a back surface 10b, which is opposite to the 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 surface 10a and is attached to the hook sealing 3 with the surface 10a facing the surface of the hook sealing 3.

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 21 has a cylindrical side wall portion 21a that opens the end portion on the negative side of the Z axis, and a bottom portion 21b whose end portion on the positive side of the Z axis forms the surface 10a of the housing 20.

As shown in FIG. 1, 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. Insertion holes through which the first terminal 51 and the second terminal 52 are inserted are formed in the bottom portion 21b of the main body portion 21, respectively.

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

As shown in FIGS. 3 and 4, the side wall portion 21a of the main body portion 21 is formed with a first opening 21c, a second opening 21d, and a pair of notched portions 21h. 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.

The pair of cutout portions 21h exposes the first locking portion 31 and the second locking portion 32 on the side of the housing 20 opposite to the side on which the connector portion 70 is arranged. The pair of cutout portions 21h have a one-to-one correspondence with the first locking portion 31 and the second locking portion 32, and also have a one-to-one correspondence with the first opening 21c and the second opening 21d. The pair of notched portions 21h are first from the first opening 21c and the second opening 21d so as to expose the first locking portion 31 and the second locking portion 32 when the back surface 10b of the adapter 10 is viewed in a plan view. It is notched toward the insertion port 22a. That is, the pair of notched portions 21h are notched from the first opening 21c and the second opening 21d toward the first insertion port 22a on the back surface 10b of the adapter 10. Therefore, the pair of notched portions 21h are continuous with the first opening 21c and the second opening 21d.

Further, as shown in FIGS. 1 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), and the luminaire 100 is engaged. The first state fixed to the adapter 10 is released. That is, when the first state in which the lighting fixture 100 is fixed to the adapter 10 is released, the second convex portion 21e engages with the first convex portion 124 formed on the lighting fixture 100, so that the lighting fixture 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. 2 and 4, the first insertion port portion 22a is a recess into which the first power feeding terminal 123a of the holder 120, which will be described later, is inserted and forms 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.

The second insertion port portion 22b is an annular groove into which the second power feeding terminal 123b of the holder 120, which will be described later, is inserted and forms 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 second insertion port portion 22b is an example of the first engaging portion.

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.

FIG. 5 is a plan view of the adapter 10 according to the embodiment, and a partially enlarged view showing a pair of elastic claw portions 22d and protrusions 22c of the adapter 10. FIG. 6A is a cross-sectional view of the adapter 10 along the VIA-VIA line of FIG. FIG. 6B is a cross-sectional view of the adapter 10 along the VIB-VIB line of FIG.

As shown in FIG. 5, the second insertion port portion 22b has a protrusion portion 22c and a pair of elastic claw portions 22d.

As shown in FIGS. 5 and 6A, the protruding portion 22c is formed inside the concave portion (inner peripheral side surface) of the second insertion opening portion 22b, and narrows the gap of the concave portion. Therefore, when the second feeding terminal 123b is inserted into the second insertion port portion 22b, the protruding portion 22c comes into contact with (sandwiches) the second feeding terminal 123b so as to support (or hold) the second feeding terminal 123b. Contact with the second power supply terminal 123b). Specifically, the protrusion 22c has a tapered shape that gradually narrows the gap of the opening of the second feeding portion 70b toward the insertion direction in which the second feeding terminal 123b is inserted into the second feeding portion 70b. Preferably, the distance between the second insertion ports 22b on which the protrusions 22c are formed is preferably equal to the thickness of the second power feeding terminal 123b.

Although the protrusion 22c is integrally formed with the second insertion opening 22b, it may be a member such as a packing attached to the inner peripheral side surface of the concave portion of the second insertion opening 22b. .. That is, a member such as packing may be attached as the protrusion 22c to the inner peripheral side surface of the concave portion in the second insertion opening 22b. Further, members such as packing may be arranged over the entire circumference of the inner peripheral side surface of the concave portion in the second insertion opening portion 22b, and the present invention is not limited to this embodiment.

Further, as shown in FIG. 5, when the adapter 10 is viewed in a plan view so as to face the connector portion 70, the protrusion portion 22c is a straight line passing through the first feeding portion 70a and is a pair of locking portions. It is arranged on a straight line V2 orthogonal to a straight line V1 connecting the first locking portion 31 and the second locking portion 32 (synonymous with substantially orthogonal). That is, the protrusion 22c is arranged at a position that suppresses the shaking of the lighting fixture 100 even if the lighting fixture 100 shakes with respect to the adapter 10 with the first locking portion 31 and the second locking portion 32 as fulcrums. In the present embodiment, the protrusions 22c are arranged on both sides of the pair of elastic claws 22d so as to sandwich the pair of elastic claws 22d, but they may be arranged over a plurality of places, and the second It may be arranged over the entire circumference of the inner peripheral side surface of the concave portion in the insertion port portion 22b, and is not limited to the present embodiment.

As shown in FIGS. 5 and 6B, each of the pair of elastic claw portions 22d is a long engaging portion that extends in the Z-axis direction and engages with the second power feeding terminal 123b, and has a tip (Z-axis minus direction). It has a claw portion 22d1 that protrudes from the side end portion) so as to face each other. The pair of elastic claw portions 22d are elastically deformable and engage with the second feeding terminal 123b. The pair of elastic claw portions 22d are provided on the second feeding portion 70b so as to sandwich the second feeding terminal 123b. When the second feeding terminal 123b is inserted into the second insertion port 22b, the pair of elastic claws 22d are elastic so as to be separated from each other by the second feeding terminal 123b as shown by the alternate long and short dash line in FIG. 6B. By deforming, each claw portion 22d1 sandwiches the second power feeding terminal 123b. The pair of elastic claw portions 22d are in the state of the solid line in FIG. 6B when the second feeding terminal 123b is separated from the second insertion port portion 22b. The pair of elastic claw portions 22d is an example of the second engaging portion. The shortest distance between the pair of elastic claws 22d may be the same as the thickness of the second insertion port 22b, and even if the second power feeding terminal 123b is inserted into the second insertion port 22b, the pair of elastic claws will be elastic. The claw portion 22d does not have to be elastically deformed. That is, each of the pair of elastic claw portions 22d may be in a state of simply contacting the second feeding terminal 123b. Further, in the present embodiment, a pair of elastic claw portions 22d is used, but one elastic claw portion 22d may be used, or three or more elastic claw portions 22d may be used.

Further, each tip side of the pair of elastic claws 22d gradually narrows the gap between the pair of elastic claws 22d in the insertion direction in which the second feeding terminal 123b is inserted into the second feeding portion 70b.

When the adapter 10 is viewed in a plan view so as to face the connector portion 70, the pair of elastic claw portions 22d are straight lines passing through the first feeding portion 70a, and the first locking portion 31 and the second locking portion 32. It is arranged on a straight line V2 orthogonal to the straight line V1 connecting the above. That is, the pair of elastic claw portions 22d are arranged at positions that suppress the shaking of the lighting fixture 100 even if the lighting fixture 100 shakes with respect to the adapter 10 with the first locking portion 31 and the second locking portion 32 as fulcrums. Will be done. In the present embodiment, the pair of elastic claw portions 22d are arranged adjacent to the protrusions 22c, but may be arranged over a plurality of locations, and the inside of the concave portions in the second insertion opening portion 22b. It may be arranged over the entire circumference of the peripheral side surface, and is not limited to the present embodiment.

[First locking portion 31 and second locking portion 32]
As shown in FIGS. 3 and 4, 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 protrudes 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.

A part of the locking main body 33 of the first locking portion 31 is exposed from one of the notch portions 21h of the pair of notched portions 21h, and the locking main body 33 of the second locking portion 32 is a pair. A part of the notch 21h is exposed from the other notch 21h.

As shown in FIG. 1, each locking main body 33 has a protruding portion 33a protruding from the upper surface portion (the surface on the Z-axis plus direction side). The protruding portions 33a are arranged in the pair of notched portions 21h, respectively, and project in the Z-axis plus direction. For example, when only the adapter 10 is attached to the holder 120 of the luminaire 100, the user picks the protrusions 33a or the locking bodies 33 through the pair of notches 21h. The first locking portion 31 and the second locking portion 32 are moved (stored) inside the housing 20. As a result, the adapter 10 can be removed from the holder 120 of the luminaire 100.

As shown in FIGS. 3 and 4, each locking body 33 has a rectangular flat plate shape 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 has 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. 7 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 FIGS. 4 and 7, the fixing portion 35 fixes the lighting fixture 100 to the adapter 10 by locking the locked portion 122b of the holder 120 of the lighting fixture 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 and 4, 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 projects outward in the radial direction from the side wall portion 21a of the main body portion 21 when the adapter 10 is viewed from the side surface. The fixing portion 35 is a part of the protruding portion of the locking main body 33. Further, the end surface of the locking main body 33 between the fixing portion 35 and the temporary fixing portion 36 in the protruding direction constitutes a part of the outer peripheral surface 10c of the adapter 10, and the outer peripheral surface 37 of the fixing portion 35 or the locking main body 33. It may be called the outer peripheral surface 37 of the above.

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 FIGS. 4 and 7, in the first state, the diameter of the circle S1 including the outer peripheral surface 37 of the fixing 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 quantity A2 is used is larger than the diameter of the outermost circumference of the adapter 10 when the first quantity A1 is used. 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 and 4, 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.

When the adapter 10 is viewed from the side surface, the temporary fixing portion 36 is formed in a stepped manner with respect to the first contact surface 35a of the fixing portion 35, 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 FIGS. 4 and 7, 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 diameter of the main body portion 21. It is larger than the diameter of the circle S2 on the surface 10c, and larger than the diameter of the circle S4 including the outer peripheral surfaces 37 of the locking main bodies 33 of the first locking portion 31 and the second locking portion 32, respectively.

As shown in FIGS. 3 and 4, the second contact surface 36a is engaged when the first locking portion 31 and the second locking portion 32 engage with the locked portion 122b in the second state. It is a surface that comes into contact with the stop portion 122b. 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. The second contact surface 36a is an example of the contact surface of the temporary fixing portion 36.

As shown in FIGS. 4 and 8, 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 W0 orthogonal to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3 of FIG. Inclines downward in the radial direction with respect to the central axis O). In other words, the distance of the second contact surface 36a from the virtual plane W0 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. Constitute. 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.

More specifically, the second contact surface 36a has a first inclined surface 36a1 and a pair of second inclined surfaces 36a2.

The first inclined surface 36a1 is inclined downward with respect to the virtual plane W0 in a direction away from the outer peripheral surface 10c of the adapter 10. Each of the pair of second inclined surfaces 36a2 is arranged on both sides of the first inclined surface 36a1. That is, the pair of second inclined surfaces 36a2 are arranged so as to sandwich the first inclined surface 36a1. Each of the pair of second inclined surfaces 36a2 also inclines downward with respect to the virtual plane W0 in a direction away from the outer peripheral surface 10c of the adapter 10. The second inclined surface 36a2 is an inclined surface having an angle different from that of the first inclined surface 36a1 with respect to the virtual plane W0. The angle θ1 of the first inclined surface 36a1 with respect to the virtual plane W0 is larger than the angle of the second inclined surface 36a2 with respect to the virtual plane W0. As shown in FIG. 8, the angle θ1 of the first inclined surface 36a1 is the angle between the straight line W1 parallel to the first inclined surface 36a1 and the virtual plane W0 when the adapter 10 is viewed from the side surface. Further, the angle θ2 of the second inclined surface 36a2 is an angle between the straight line W2 parallel to the second inclined surface 36a2 and the virtual plane W0 when the adapter 10 is viewed from the front, as shown in FIG. FIG. 8 is a side view showing a case where the second locking portion 32 is viewed from the side. FIG. 9 is a side view showing a case where the second locking portion 32 is viewed from the front.

The angles θ1 and θ2 can be appropriately changed in order to set the holding force of the locked portion 122b with respect to the first inclined surface 36a1 and the second inclined surface 36a2.

In the locking body 33, when the adapter 10 is cut in a plane parallel to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3 including the central axis O of the adapter 10, the first contact surface 35a of the fixing portion 35 and the hook are hooked. The first angle formed by the outer peripheral surface 10c of the adapter 10 parallel to the attachment / detachment direction (Z-axis direction) of the adapter 10 with respect to the sealing 3 is the second contact surface 36a of the temporary fixing portion 36 and the adapter 10 with respect to the hook sealing 3. It is smaller than the second angle formed by the outer peripheral surface 10c of the adapter 10 parallel to the attachment / detachment direction. In other words, the second angle 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 formed by the outer peripheral surface 37. That is, in the locking body 33, the fixing portion that forms the first angle 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. In 35, when the first locking portion 31 and the second locking portion 32 lock the locked portion 122b in the first state, the locking force in the removing direction (Z-axis minus direction) is the locking main body 33. In the temporary fixing portion 36 forming a second angle 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 locking force. 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 and 4, 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. 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 ceiling 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. Although the two terminals of the first terminal 51 and the second terminal 52 are illustrated in the present embodiment, 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 4, 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 positive 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 unit 70a is a concave power feeding unit into which the first power feeding terminal 123a is inserted. The first power supply unit 70a has a first connection terminal 50a that is electrically connected to the first power supply terminal 123a provided in the luminaire 100. In the present embodiment, the first power feeding portion 70a includes the first insertion port 22a formed in the central portion of the cover 22, the first feeding terminal 123a of the holder 120 inserted into the first insertion port 22a, and electricity. It is composed of a first connection terminal 50a to be connected.

The second power feeding unit 70b is a concave power feeding unit into which the second power feeding terminal 123b is inserted. The second feeding portion 70b is formed so as to surround the periphery of the first connecting terminal 50a, and is engaged with the second insertion port portion 22b that engages with the second feeding terminal 123b and the second insertion port portion 22b that is engaged with the second insertion port portion 22b. It has a second power supply terminal 123b and a second connection terminal 50b that is electrically connected. In the present embodiment, the second power supply unit 70b is composed of a second power supply terminal 123b formed in the central portion of the cover 22 and a second connection terminal 50b electrically connected to the second power supply terminal 123b. NS. 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 connectord portion 123 of the lighting fixture 100 in the first state, and is electrically disconnected from the connectord portion 123 of the lighting fixture 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 unit 80]
(1) When the housing 20 is attached to the hook sealing 3 in a predetermined positional relationship, the lock portion 80 protrudes from the surface 10a and is inserted into the feeding port 3a provided on the surface of the hook sealing 3. 2) When the housing 20 is attached to the hook sealing 3 in a state where the housing 20 is not in a predetermined positional relationship, it is pressed by the surface of the hook sealing 3. That is, 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. Such a 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 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 of FIG. 1, thereby restricting the movement of the adapter 10 with respect to the hook sealing 3. do.

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 10, 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 power 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. FIG. 10 is a cross-sectional view showing the adapter 10 on the XX line of FIG. In FIG. 10, the hook sealing 3 is omitted.

[Unlock button 90]
As shown in FIGS. 3 and 10, the unlock button 90 is a button 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. Is. Further, the lock release button 90 is displaced to a position that hinders the electrical connection of the second power supply terminal 123b to the second power supply unit 70b by pressing the lock portion 80 by the surface of the hook sealing 3. 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 lock release button 90 has a pin 91 that slides with respect to the lock portion 80, and a regulation that prevents the electrical connection of the second power supply terminal 123b to the second power supply unit 70b while the lock release button 90 is pushed. It has a part 92 and. 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. The regulation unit 92 is displaced so that the lock portion 80 is pressed by the surface of the hook sealing 3 so as to be displaced to a position that hinders the electrical connection of the second power supply terminal 123b to the second power supply unit 70b. It is arranged inside the concave portion of the second feeding portion 70b into which the 123b is inserted.

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.

On the other hand, for example, when the adapter 10 is attached to the hook sealing 3, the hook blade 51a of the first terminal 51 and the hook blade 52a of the second terminal 52 are inserted into the feeding port 3a, and then the rotation is completed, and the hook blade The guide portion 82 is always pressed by the hook sealing 3 until the 51a and the hook blade 52a reach the end of the power feeding port 3a. That is, the guide portion 82 can protrude from the housing 20 only after the adapter 10 is completely attached to the hook sealing 3 after the start of the attachment work. In other words, when the amount of rotation of the adapter 10 with respect to the hook sealing 3 is not sufficient and the adapter 10 is not completely attached to the hook sealing 3 (also referred to as an incomplete mounting state), the guide portion 82 protrudes. Instead, the unlock button 90 remains pushed in (located inside the housing 20) in conjunction with this.

Utilizing this, the regulation unit 92 is arranged inside the concave portion of the second power supply unit 70b into which the second power supply terminal 123b is inserted, so that the regulation unit 92 can be second to the second power supply unit 70b. It interferes with the electrical connection of the power supply terminal 123b. Therefore, the adapter 10 suppresses the attachment of the luminaire 100 to the adapter 10 in an incompletely attached state by the regulation portion 92 provided on the unlock button 90. Specifically, as shown in FIGS. 11 and 12, while the unlock button 90 is pressed, the second insertion slot 92 is exposed from the second insertion slot 22b. It is arranged inside the concave portion of the portion 22b. That is, in an incompletely mounted state, the second power supply terminal 123b comes into contact with the regulation portion 92, which prevents the second power supply terminal 123b from entering the second insertion port 22b. Therefore, the luminaire 100 is used as an adapter. Cannot be attached to 10. Therefore, as a result of the luminaire 100 being attached to the adapter 10 in an incompletely attached state, it is possible to prevent the luminaire 100 from falling off together with the adapter 10. FIG. 11 is a plan view of the adapter 10 showing a state in which the unlock button 90 is pushed in the embodiment. FIG. 12 is a plan view of the adapter 10 showing a state in which the unlock button 90 is pushed in the line XII-XII of FIG.

<Lighting fixture 100>
As shown in FIGS. 1 and 2, 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, and the like, 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. An opening 113 for fixing the holder 120 is formed in the accommodating portion 111 at the central portion. The opening 113 is an insertion hole into which an adapter 10 for supplying input power such as commercial power from the outside to the power supply unit 150 is inserted. The adapter 10 is inserted into the opening 113 by fixing the holder 120 covering the opening 113 of the accommodating portion 111 with 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 cylindrical 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 a fixing member such as a screw.

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 lighting fixture 100 is temporarily fixed to the adapter 10 in the second state. It comes into 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 a 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 and the second power supply terminal 123b are electrically and mechanically connected to the luminaire 100.

The first power supply terminal 123a is a convex terminal (columnar terminal) extending in the attachment / detachment direction, and is a connection terminal for supplying electric power supplied from the hook sealing 3 of FIG. 1 via the adapter 10. This is the connector part of the mold. The first power supply terminal 123a has a fixing member such as a screw on the bottom portion 122 of the holder 120 so that the central axis O of the first power supply 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.

The second power supply terminal 123b is a convex terminal (cylindrical terminal) extending in the attachment / detachment direction, and is a connection terminal for supplying electric power supplied from the hook sealing 3 via the adapter 10 and is a male type. It is a connector part. 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 cylindrical because it may surround the first power supply terminal 123a. If the second power supply terminal 123b is concentric with the first power supply terminal 123a, 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.

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. 2, 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 the present embodiment, the LED module 132 has an inner region inside the annular power supply unit 150 and an outer region on the outer peripheral side of the annular power supply unit 150 so as to sandwich the power supply unit 150 arranged in an annular shape from the inside and the outside. Placed in and. That is, the LED module 132 in the inner region and the LED module 132 in the outer region are arranged concentrically so as to sandwich the annular power supply unit 150.

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 an 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. A dimming circuit, a booster circuit, and the like are combined with the power supply unit 150.

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.

In the present embodiment, the power supply unit 150 is housed in the housing 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 arranged in an annular shape on the surface of the substrate 131 on the positive side of the Z axis. The electronic components of the power supply unit 150 are mainly arranged on the first surface of the board 131 on the Z-axis negative direction side, and the lead-attached components of the power supply unit 150 are mainly arranged on the second surface of the board 131 on the Z-axis positive direction side. Be placed. Electronic components are microcomputers and the like, and lead-attached components are transformers, electrolytic capacitors and the like. 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 FIG. 1, the respective power supply ports 3a of the hook sealing 3 are aligned with the hook blades 51a of the first terminal 51 of the adapter 10 and the hook blades 52a of the second terminal 52, and the hook blades 52a of the second terminal 52 are aligned with each power supply port 3a. The hooking blade 51a of the first terminal 51 and the hooking blade 52a of the second terminal 52 are inserted. The guide portion 82 is always held by the surface of the hook sealing 3 and housed inside the housing 20 until the hook blade 51a and the hook blade 52a reach the end of the feeding port 3a. The adapter 10 is rotated in the circumferential direction of the central axis O of the adapter 10 until the hook blade 51a and the hook blade 52a reach the end of the feeding port 3a. As a result, the adapter 10 is electrically and mechanically connected to and fixed to the hook sealing 3.

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

As shown in FIGS. 1, 2 and 4, the luminaire 100 is aligned so that the holder 120 of the luminaire 100 and the adapter 10 overlap each other, and the adapter 10 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 lighting fixture 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 locking main body 33 of the first locking portion 31 and the outer peripheral surface 37 of the locking main body 33 of the second locking portion 32 abut on the inner peripheral surface of the locked portion 122b, and the first locking portion The second contact surface 36a of the temporary fixing portion 36 of 31 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, as shown in FIG. 13, 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. The luminaire 100 and the adapter 10 are not electrically connected. The first power supply terminal 123a of the holder 120 is not electrically connected to the other end 53a of the third terminal 53, and the second power supply terminal 123b of the holder 120 is electrically connected to the other end 54a of the fourth terminal 54. It has not been. FIG. 13 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.

Further, when the adapter 10 is inserted into the holder 120 of the luminaire 100, as shown in FIGS. 1, 2 and 4, the inner peripheral surface of the locked portion 122b and the first locking portion 31 are locked. After the outer peripheral surface 37 of the main body 33 and the outer peripheral surface 37 of the locking main body 33 of the second locking portion 32 slide, the first locking portion 31 and the second locking portion 32 are moved by the urging force of the elastic member 40. Further, it moves in the outer diameter direction of the adapter 10. 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. 4 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 power is supplied from the hook sealing 3.

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

As shown in FIGS. 1 and 2, when the luminaire 100 is rotated in the circumferential direction of the central axis O, the first convex portion 124 of the holder 120 and the second convex portion 21e of the main body portion 21 of the adapter 10 come into contact with each other. In contact with each other, the second convex portion 21e slides the first convex portion 124 and pushes down the luminaire 100 in the negative direction of the Z axis. At this time, while the third convex portion 125 in the holder 120 is in contact with the first locking portion 31 and the second locking portion 32 and slides, the first locking portion 31 and the second locking portion 32 are respectively. By being pressed by the third convex portion 125, the first locking portion 31 and the second locking portion 32 move in the direction of the central axis O of the adapter 10.

As a result, as shown in FIG. 13, 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. 13 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.

In this way, when the first state in which the luminaire 100 is fixed to the adapter 10 is released in the adapter 10, the second convex portion 21e engages with the first convex portion 124 formed on the luminaire 100. As a result, the luminaire 100 is temporarily fixed to the adapter 10 by transitioning the first state fixed to the adapter 10 to the second state of temporary fixing.

Then, when the luminaire 100 is pushed down in the negative direction of the Z axis, the locked portion 122b becomes the first inclined surface 36a1 and the second locking of the second contact surface 36a of the temporary fixing portion 36 of the first locking portion 31. The first locking portion 31 and the second locking portion 31 and the second locking portion are pressed by the locked portion 122b while sliding in contact with the first inclined surface 36a1 of the second contact surface 36a of the temporary fixing portion 36 of the portion 32. The portion 32 moves in the direction of the central axis O of the adapter 10. As a result, the luminaire 100 can be removed from the adapter 10.

When the luminaire 100 is temporarily fixed to the adapter 10, in order to remove the luminaire 100 from the adapter 10, when the luminaire 100 is tilted with respect to the horizontal plane and pushed down in the negative direction of the Z axis, the first inclination is achieved. The surface 36a1 or the second inclined surface 36a2 is substantially parallel to the contact surface 122b1 of the locked portion 122b. Therefore, when the first inclined surface 36a1 or the second inclined surface 36a2 comes into surface contact with the contact surface 122b1 of the locked portion 122b, the locked portion 122b becomes the first inclined surface 36a1 or the second inclined surface 36a2. On the other hand, it becomes difficult to slide. Therefore, when the luminaire 100 is pushed down in the negative direction of the Z axis in a posture substantially parallel to the horizontal plane, the locked portion 122b comes into contact with the first inclined surface 36a1 and slides to be temporarily fixed to the adapter 10. The lighting fixture 100 can be removed.

<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 sealing 3 and the luminaire 100, and is the first power supply terminal 123a provided on the luminaire 100. A connector unit 70 having a first power supply unit 70a that is electrically connected to the first power supply unit 70a and a second power supply unit 70b that is electrically connected to the second power supply terminal 123b provided in the lighting fixture 100 so as to surround the first power supply terminal 123a. To be equipped. Further, the first power feeding unit 70a has a first connection terminal 50a that is electrically connected to the first power feeding terminal 123a. Further, the second feeding portion 70b is formed so as to surround the periphery of the first connecting terminal 50a, and is engaged with the second insertion port portion 22b that engages with the second feeding terminal 123b and the second insertion port portion 22b. It also has a second power supply terminal 123b and a second connection terminal 50b that is electrically connected. The second insertion port portion 22b has a protrusion 22c that comes into contact with the second feeding terminal 123b so as to support the second feeding terminal 123b.

According to this, since the protrusion 22c is formed in the second insertion port 22b, when the second power supply terminal 123b is engaged with the second insertion port 22b, the protrusion 22c receives the second power supply. It can be contacted and engaged with the terminal 123b. Therefore, since the luminaire 100 can be held in a predetermined posture, the luminaire 100 and the adapter 10 are mechanically and firmly connected to each other, so that the luminaire 100 can be suppressed from shaking with respect to the adapter 10. ..

Therefore, in this adapter 10, it is possible to suppress the deterioration of the appearance of the luminaire 100 and the shaking of the luminaire 100.

In particular, in this lighting device 1, the appearance of the adapter 10 is not easily impaired.

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, in the adapter 10 of the present embodiment, the first power supply terminal 123a and the second power supply terminal 123b of the lighting fixture 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 feeding unit 70b is a concave power feeding unit into which the first power feeding terminal 123a and the second power feeding terminal 123b are inserted. Then, the protrusion 22c gradually narrows the gap of the opening of the second feeding portion 70b toward the insertion direction in which the second feeding terminal 123b is inserted into the second feeding portion 70b.

According to this, when the luminaire 100 is attached to the adapter 10, the protrusion 22c can guide the second power feeding terminal 123b. Therefore, the luminaire 100 can be easily attached to the adapter 10.

Further, in the adapter 10 of the present embodiment, the second feeding portion 70b is elastically deformable and has a second engaging portion that engages with the second feeding terminal 123b.

According to this, since the second engaging portion also engages with the second feeding terminal 123b, the luminaire 100 can be held more firmly in a predetermined posture. Therefore, since the lighting fixture 100 and the adapter 10 are mechanically more firmly connected, the shaking of the lighting fixture 100 with respect to the adapter 10 can be further suppressed.

Further, in the adapter 10 of the present embodiment, the second engaging portion is a pair of elastic claw portions 22d, and is provided on the second feeding portion 70b so as to sandwich the second feeding terminal 123b.

According to this, since the second power feeding terminal 123b can be sandwiched between the pair of elastic claw portions 22d, the luminaire 100 can be held more reliably and firmly. Therefore, the shaking of the luminaire 100 with respect to the adapter 10 can be suppressed more reliably.

Further, the adapter 10 in 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. .. When the adapter 10 is viewed in a plan view so as to face the connector portion 70, the second engaging portion is a straight line passing through the first feeding portion 70a, and the first locking portion 31 and the second locking portion are formed. It is arranged on a straight line V2 orthogonal to the straight line V1 connecting 32.

For example, when stress is applied to the luminaire 100, the luminaire 100 acts on the adapter 10 so as to sway with the first locking portion 31 and the second locking portion 32 as fulcrums. However, in the present embodiment, since the second engaging portion is arranged on the straight line V2 orthogonal to the straight line V1 connecting the first locking portion 31 and the second locking portion 32, the first locking portion 31 And the shaking of the lighting fixture 100 with the second locking portion 32 as a fulcrum can be suppressed more reliably.

Further, in the adapter 10 of the present embodiment, when the adapter 10 is viewed in a plan view so as to face the connector portion 70, the protrusion 22c is a straight line passing through the first feeding portion 70a and is the first locking portion. It is arranged on a straight line V2 orthogonal to the straight line V1 connecting the 31 and the second locking portion 32.

For example, when stress is applied to the luminaire 100, the luminaire 100 acts on the adapter 10 so as to sway with the first locking portion 31 and the second locking portion 32 as fulcrums. However, in the present embodiment, since the protrusion 22c is arranged on the straight line V2 orthogonal to the straight line V1 connecting the first locking portion 31 and the second locking portion 32, the first locking portion 31 and the second locking portion 31 and the second locking portion 32c are arranged. (2) The shaking of the lighting fixture 100 with the locking portion 32 as a fulcrum can be suppressed more reliably.

Further, the adapter 10 in the present embodiment includes a housing 20 provided with a connector portion 70, a first locking portion 31, and a second locking portion 32. Then, the housing 20 is formed with a pair of notched portions 21h that expose the first locking portion 31 and the second locking portion 32 on the side opposite to the side on which the connector portion 70 of the housing 20 is arranged. Will be done.

According to this, even if the user mistakenly attaches only the adapter 10 to the luminaire 100, the user picks the first locking portion 31 and the second locking portion 32 through the notch portion 21h. While squeezing, the first locking portion 31 and the second locking portion 32 can be moved inside the housing 20. Therefore, the adapter 10 can be easily removed from the luminaire 100.

Further, in the adapter 10 of the present embodiment, the first locking portion 31 and the second locking portion 32 have protruding portions 33a arranged in a pair of notched portions 21h.

According to this, the user can move the first locking portion 31 and the second locking portion 32 inside the housing 20 while pinching the protruding portion 33a. Therefore, the adapter 10 can be easily removed from the luminaire 100.

Further, in the adapter 10 of the present embodiment, each of the first locking portion 31 and the second locking portion 32 is first from the outer peripheral surface 10c of the adapter 10 when the lighting fixture 100 is fixed to the adapter 10. It is the first state that protrudes by the amount.

According to this, in the first state, each of the first locking portion 31 and the second locking portion 32 is locked to the locked portion 122b, so that the vertical movement of the luminaire 100 is suppressed. Can be done. 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 lighting fixture 100 is temporarily fixed to the adapter 10. The second state is such that the second amount, which is less than one amount, 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 each of the first locking portion 31 and the second locking portion 32 specifies the luminaire 100 to the adapter 10. Can be held in the posture of. 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, the connector portion 70 is detachably provided with respect to the connected portion 123 having the first feeding terminal 70a and the second feeding portion 70b, and in the first state, the connector portion 70 is attached and detached. It is electrically connected to 123, and in the second state, it is electrically disconnected from the connector-attached portion 123.

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, 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 lighting fixture 100 is easily suppressed.

Further, the adapter 10 in the present embodiment (1) protrudes from the surface 10a of the housing 20 when the housing 20 of the adapter 10 is attached to the hook sealing 3 in a predetermined positional relationship. When the housing 20 is inserted into the opening provided on the surface and is attached to the hook sealing 3 in a state where the housing 20 is not in a predetermined positional relationship, the lock portion 80 is pressed by the surface of the hook sealing 3. The locking portion 80 is pressed by the surface of the hook sealing 3, so that the locking portion 80 is provided with a regulating portion 92 that is displaced to a position that hinders the electrical connection of the second feeding terminal 123b to the second feeding portion 70b.

According to this, when the lock portion 80 is pressed by the surface of the hook sealing 3, the regulation portion 92 is displaced to a position that hinders the electrical connection of the second power supply terminal 123b to the second power supply unit 70b. Therefore, even if the luminaire 100 is attached to the adapter 10, the electrical connection with the second power feeding unit 70b is hindered, so that the luminaire 100 cannot be attached to the adapter 10. Therefore, the user can notice that the adapter 10 is incompletely attached to the hook sealing 3.

Therefore, the adapter 10 can suppress the connection to the hook sealing 3 in an incomplete state. As a result, it is possible to prevent the adapter 10 and the luminaire 100 from falling due to the adapter 10 being connected to the hook sealing 3 in an incomplete state.

Further, in the adapter 10 of the present embodiment, the lock portion 80 is displaced by the surface of the hook sealing 3 to a position that hinders the electrical connection of the second power supply terminal 123b to the second power supply portion 70b. As described above, the regulating portion 92 is arranged inside the concave portion of the second feeding portion 70b.

According to this, when the lock portion 80 is pressed by the surface of the hook sealing 3, the regulating portion 92 is arranged inside the concave portion of the second feeding portion 70b into which the second feeding terminal 123b is inserted. Therefore, even if the luminaire 100 is attached to the adapter 10, the second power supply terminal 123b comes into contact with the regulation unit 92, which hinders the electrical connection with the second power supply unit 70b. Therefore, the luminaire 100 is used as an adapter. It cannot be attached to 10. Therefore, according to the adapter 10 of the present embodiment, it is possible to further suppress the connection to the hook sealing 3 in an incomplete state.

Further, the adapter 10 in 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 freely from the outer peripheral surface 10c of the adapter 10 to the adapter 10. .. 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 second contact surface 36a that comes into contact with the locked portion 122b when the lighting fixture 100 is temporarily fixed to the adapter 10. Further, the second contact surface 36a is an inclined surface that is inclined downward in a direction away from the outer peripheral surface 10c of the adapter 10 with respect to the virtual plane W0 orthogonal to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3. The second contact surface 36a has a first inclined surface 36a1 and a second inclined surface 36a2 which is an inclined surface having an angle different from that of the first inclined surface 36a1 with respect to the virtual plane W0.

For example, when the luminaire 100 is temporarily fixed to the adapter 10, when a vertical downward stress is applied to one part of the luminaire 100 in order to remove the luminaire 100 from the adapter 10, the luminaire 100 is attached to the adapter 10. The posture of is tilted. At this time, the first inclined surface 36a1 or the second inclined surface 36a2 is substantially parallel to the locked portion 122b (in the present embodiment, the contact surface 122b1 of the locked portion 122b). Therefore, when the first inclined surface 36a1 or the second inclined surface 36a2 comes into contact with the locked portion 122b (in the present embodiment, the contact surface 122b1 comes into surface contact), the locked portion 122b becomes the first. Since it becomes difficult to slide with respect to the inclined surface 36a1 or the second inclined surface 36a2, it becomes difficult for the first locking portion 31 and the second locking portion 32 to move toward the center of the adapter 10 (accommodated in the housing 20). It becomes difficult to move like). Therefore, even when the luminaire 100 is temporarily fixed to the adapter 10, it becomes difficult for the luminaire 100 to be separated from the adapter 10.

Further, when the luminaire 100 is temporarily fixed to the adapter 10, in order to remove the luminaire 100 from the adapter 10, the luminaire 100 is moved vertically downward while holding both ends of the luminaire 100 in a substantially horizontal position. When stress is applied, the first inclined surface 36a1 is inclined with respect to the horizontal plane, so that the locked portion 122b can slide on the first inclined surface 36a1. Therefore, when the first inclined surface 36a1 is pushed by the locked portion 122b, the first locking portion 31 and the second locking portion 32 can move toward the center of the adapter 10. Therefore, the lighting fixture 100 temporarily fixed to the adapter 10 can be removed.

In this way, even when the luminaire 100 is temporarily fixed to the adapter 10, by performing an incorrect removal operation of the luminaire 100, the luminaire 100 is held by the adapter 10 and the luminaire 100 is correctly removed. The lighting fixture 100 can be easily removed from the adapter 10. Since the fall of the luminaire 100 can be suppressed, the safety of the luminaire 100 can be enhanced by the adapter 10.

Further, in the adapter 10 of the present embodiment, the second inclined surface 36a2 is arranged on both sides of the first inclined surface 36a1. The angle θ1 of the first inclined surface 36a1 with respect to the virtual plane W0 is larger than the angle θ2 of the second inclined surface 36a2 with respect to the virtual plane W0.

According to this, when the luminaire 100 is temporarily fixed to the adapter 10, in order to remove the luminaire 100 from the adapter 10, the luminaire 100 is vertically held in a substantially horizontal position while grasping both ends of the luminaire 100. The luminaire 100 can be easily removed from the adapter 10 by performing a correct removal operation of the luminaire 100 with a downward stress applied.

In the adapter 10 of the present embodiment, each of the first locking portion 31 and the second locking portion 32 locks the locked portion 122b of the lighting fixture 100 to connect the lighting fixture 100 to the adapter 10. There may be a fixing portion 35 fixed to the luminaire and a temporary fixing portion 36 for temporarily fixing the luminaire 100 to the adapter 10 by engaging with the locked portion 122b. Further, the temporary fixing portion 36 may have a contact surface 122b1 that comes into contact with the locked portion 122b when the lighting fixture 100 is temporarily fixed to the adapter 10. The contact surface 122b1 may be a second contact surface 36a that inclines downward from the outer peripheral surface 10c of the adapter 10 with respect to the virtual plane W0 orthogonal to the attachment / detachment direction of the adapter 10 with respect to the hook sealing 3. good.

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 may be released. When the locking is released, the luminaire 100 moves vertically downward with respect to the adapter 10 due to its own weight, but the locked portion 122b and the temporary fixing portion 36 engage with each other, so that the luminaire 100 is an adapter. It may be caught in 10 and the fall of the luminaire 100 may be suppressed.

Therefore, according to the adapter 10, even if the lighting device 1 is suddenly moved, the falling of the lighting device 1 may 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 lighting fixture 100 is pushed down, the first engagement is performed. The engagement between the locked portion 122b and the temporary fixing portion 36 may be released by moving the stopping portion 31 and the second locking portion 32. Therefore, the lighting fixture 100 may be able to be removed reliably and safely.

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

For example, the luminaire and the luminaire described in the above embodiment are examples, and the specific embodiment 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 illuminating device described in the above embodiment, the plurality of locking portions may be one integrated member.

Further, in the adapter and the lighting device described in the above embodiment, as shown in FIGS. 14 and 15, a cushioning member 191 such as a packing that comes into contact with the back surface 10b of the adapter 10 is provided on the bottom 122 of the holder 120. Be done. That is, the cushioning member 191 is provided on the surface of the bottom portion 122 of the holder 120 that faces the back surface 10b of the adapter 10. When the adapter 10 is normally attached to the holder 120 of the luminaire 100, the cushioning member 191 is sandwiched between the back surface 10b of the adapter 10 and the bottom 122 of the holder 120 and compressed. At this time, the thickness of the cushioning member 191 is smaller than that in the case where the adapter 10 is not attached to the holder 120. In this way, since the cushioning member 191 is arranged between the back surface 10b of the adapter 10 and the bottom portion 122 of the holder 120, it is possible to more reliably suppress the shaking of the luminaire 100 with respect to the adapter 10. Further, since the cushioning member 191 is provided inside the holder 120, the appearance of the lighting fixture 100 is not impaired. FIG. 14 is a perspective view showing a lighting device 1 having a lighting fixture 100 and an adapter 0 and a hook sealing 3. FIG. 15 is a partially enlarged cross-sectional view showing a first state in which the luminaire 100 is normally fixed to the adapter 10. Although the cushioning member 191 is provided on the holder 120, it may be provided on the adapter 10 (specifically, the back surface 10b of the adapter 10).

Further, in the adapter and the lighting device described in the above 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. In the adapter, the first power supply terminal and the second power supply terminal of the lighting fixture are convex terminals extending in the attachment / detachment direction, and the first power supply part and the second power supply part of the adapter are the first power supply terminal and the second power supply terminal. Is a concave power supply part into which is inserted, but the first power supply terminal and the second power supply terminal of the lighting fixture are concave terminals extending in the attachment / detachment direction, and the first power supply part and the second power supply part of the adapter are the first. It may be a convex feeding portion inserted into the first feeding terminal and the second feeding terminal.

Further, in the adapter and the lighting device described in the above embodiment, the outer peripheral wall portion of the holder may have a first locked portion and a second locked portion. The first locked portion is an annular convex portion formed on the Z-axis minus direction side with respect to the second locked portion, and projects from the inner peripheral surface of the outer peripheral wall portion so as to narrow the inner diameter of the outer peripheral wall portion. You may be. In the case of the first state, the first locked portion comes into contact with the fixed portion of the locking body in each of the first locking portion and the second locking portion. The first locked portion may be formed on the inner peripheral surface of the outer peripheral wall portion and may be located between the second locked portion and the bottom portion of the holder. Further, the second locked portion is an annular convex portion formed on the edge of the outer peripheral wall portion of the holder on the Z-axis plus direction side, and narrows the inner diameter of the outer peripheral wall portion from the inner peripheral surface of the outer peripheral wall portion. It may be overhanging like this. In the second state, the second locked portion comes into contact with the temporarily fixed portion of the locking body in each of the first locking portion and the second locking portion. The second locked portion has substantially the same diameter as the first locked portion in a plan view of the holder, but may have a larger diameter than the first locked portion, and the first locked portion may have a larger diameter. It may have a smaller diameter than.

Further, in the adapter and the lighting device described in the above embodiment, 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 20 Housing 22b Second insertion port (first engagement part)
22c Protrusion 22d Elastic claw (second engaging part)
21h Notch 31 First locking portion 32 Second locking portion 33a Protruding portion 36a Second contact surface (contact surface)
50a First connection terminal 50b Second connection terminal 70 Connector part 70a First power supply part 70b Second power supply part 100 Lighting equipment 123 Connectord part 123a First power supply terminal 123b Second power supply terminal V1, V2, W1, W2 Straight line W0 Virtual Plane

Claims (16)

An adapter for electrically and mechanically connecting a hook ceiling and a luminaire.
A second power supply that is electrically connected to a first power supply terminal that is electrically connected to the first power supply terminal provided in the luminaire and a second power supply terminal that is electrically connected to the second power supply terminal that is provided in the luminaire so as to surround the first power supply terminal. Provided with a connector part having a part
The first power supply unit has a first connection terminal that is electrically connected to the first power supply terminal.
The second power feeding unit
A first engaging portion formed so as to surround the first connection terminal and engaging with the second feeding terminal,
It has a second feeding terminal engaged with the first engaging portion and a second connecting terminal electrically connected to the first feeding terminal.
The first engaging portion is an adapter having a protrusion that contacts the second feeding terminal so as to support the second feeding terminal. The first power supply terminal and the second power supply terminal of the lighting fixture 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 feeding part into which the second power feeding terminal is inserted.
The adapter according to claim 1, wherein the protrusion gradually narrows the gap of the opening of the second feeding portion in the insertion direction in which the second feeding terminal is inserted into the second feeding portion. The adapter according to claim 1 or 2, wherein the second feeding portion is elastically deformable and has a second engaging portion that engages with the second feeding terminal. The adapter according to claim 3, wherein the second engaging portion is a pair of elastic claw portions, and is provided on the second feeding portion so as to sandwich the second feeding terminal. A pair of locking portions for fixing the luminaire to the adapter by projecting freely from the outer peripheral surface of the adapter.
When the adapter is viewed in a plan view so as to face the connector portion, the second engaging portion is a straight line passing through the first feeding portion and orthogonal to a straight line connecting the pair of locking portions. The adapter according to claim 3 or 4, which is arranged above. When the adapter is viewed in a plan view so as to face the connector portion, the protrusion portion is a straight line passing through the first feeding portion and is arranged on a straight line orthogonal to the straight line connecting the pair of locking portions. The adapter according to claim 5. A housing provided with the connector portion and the pair of locking portions is provided.
5. adapter. The adapter according to claim 7, wherein the pair of locking portions has protrusions arranged in the pair of notches. Any one of claims 5 to 8 in which each of the pair of 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. Claim that each of the pair of 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. The adapter according to 9. The connector part
It is detachably provided with respect to the connectored portion having the first feeding terminal and the second feeding portion.
In the first state, it is electrically connected to the connector to be connected.
The adapter according to claim 10, which is electrically disconnected from the connector-attached portion in the second state. (1) When the housing of the adapter is attached to the hook ceiling in a predetermined positional relationship, it protrudes from the mounting surface of the housing and is inserted into the opening provided on the surface of the hook ceiling (2). ) When the housing is attached to the hook ceiling in a state where the housing is not in the predetermined positional relationship, the lock portion pressed by the surface of the hook ceiling and the lock portion.
One of claims 1 to 11, wherein the lock portion is pressed by the surface of the hook sealing so as to include a regulating portion that is displaced to a position that hinders the electrical connection of the second feeding terminal to the second feeding portion. The adapter described in item 1. The inside of the concave portion of the second feeding portion is displaced so that the lock portion is pressed by the surface of the hook sealing so as to be displaced to a position that hinders the electrical connection of the second feeding terminal to the second feeding portion. The adapter according to claim 12, wherein the regulation unit is arranged therein. A pair of locking portions for fixing the luminaire to the adapter by projecting freely from the outer peripheral surface of the adapter.
Each of the pair of locking portions
A fixing portion for fixing the luminaire to the adapter by locking the locked portion of the luminaire, and a fixing portion for fixing the luminaire to the adapter.
It has a temporary fixing portion for temporarily fixing the luminaire to the adapter by engaging with the locked portion.
The temporary fixing portion has a contact surface that comes into contact with the locked portion when the lighting fixture is temporarily fixed to the adapter.
The contact surface is
An inclined surface that is inclined downward in a direction away from the outer peripheral surface of the adapter with respect to a virtual plane orthogonal to the attachment / detachment direction of the adapter with respect to the hook sealing.
The adapter according to any one of claims 1 to 13, which has a first inclined surface and a second inclined surface which is an inclined surface having an angle different from that of the first inclined surface with respect to the virtual plane. The second inclined surface is arranged on both sides of the first inclined surface.
The adapter according to claim 14, wherein the angle of the first inclined surface with respect to the virtual plane is larger than the angle of the second inclined surface with respect to the virtual plane. The adapter according to any one of claims 1 to 15, and the adapter.
A luminaire comprising the adapter and a luminaire that is electrically connected.

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