JP7291902B2 - Adapters, Lighting Devices and Luminaires - Google Patents

Description

The present disclosure relates to adapters, lighting devices and lighting fixtures.

Conventionally, adapters are known for electrically and mechanically connecting a lighting fixture to a hanging ceiling provided in the ceiling.

A socket, an example of a conventional adapter, is connected to a power connector on the ceiling. The socket includes a body housed in a holder fixed to the lighting device, and a plurality of protruding steps outwardly protruding from the body. Since the upper surface of the protruding step contacts the holder, the socket can hold the lighting device together with the holder (see, for example, Patent Document 1).

Japanese Patent Publication No. 2019-515453

However, in the socket of Patent Document 1, the lighting device can be removed from the socket by rotating the lighting device. For example, a user who does not know that the lighting device can be removed by rotating it may accidentally drop the lighting device by rotating the lighting device without knowing it.

Moreover, when the lighting device is attached to the socket, the socket may remain in a state in which it is not sufficiently fixed to the holder of the lighting device. In this case, since the lighting device is held in the socket in an unstable state, there is a risk that the socket will come off the holder due to vibration or the like, and the lighting device will fall.

Therefore, the present disclosure provides an adapter, a lighting device, and a lighting fixture that can prevent the lighting device from falling even if the lighting device is moved unexpectedly.

An adapter according to an aspect of the present disclosure is an adapter for electrically and mechanically connecting a hook ceiling and a lighting fixture, and includes a plurality of hooks detachably fixed to the hook ceiling to which power is supplied. a blade, a connector portion provided on the back surface of the adapter opposite to the surface on which the plurality of hooking blades are provided, and electrically connected to the plurality of hooking blades to supply power to the lighting fixture; one or more locking portions projecting forward and backward from an outer peripheral surface to fix the lighting device to the adapter, each of the one or more locking portions engaging a locked portion of the lighting device; a fixing portion for fixing the lighting device to the adapter by engaging with the adapter; and a temporary fixing portion for temporarily fixing the lighting device to the adapter by engaging with the engaged portion; The temporary fixing portion has a contact surface that contacts the engaged portion when the lighting fixture is temporarily fixed to the adapter, and the contact surface is aligned with the attachment/detachment direction of the adapter with respect to the hook ceiling. It is an inclined surface that slopes downward in a direction away from the outer peripheral surface of the adapter with respect to an orthogonal virtual plane.

A lighting device according to an aspect of the present disclosure includes an adapter and a lighting fixture electrically connected to the adapter.

Further, a lighting fixture according to an aspect of the present disclosure is a lighting fixture electrically connected to a hook ceiling via an adapter, comprising a light source, a fixture body that houses the light source, and a fixture that is fixed to the fixture body. and a holder to which the adapter is detachably attached, the holder being formed with a locked portion projecting toward the adapter to fix the lighting fixture to the adapter; The stop portion is engaged with a fixing portion formed on the outer peripheral surface of the adapter, thereby forming a first engaged portion for fixing the lighting fixture to the adapter and a temporary engagement portion formed on the outer peripheral surface of the adapter. a second locked portion for temporarily fixing the lighting device to the adapter by engaging with the stop portion; has a third contact surface that contacts the temporary fixing portion.

The adapter or the like of the present disclosure can prevent the lighting device from falling even if the lighting device is moved unexpectedly.

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

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

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected about the same component. Moreover, in the following embodiments, expressions such as substantially parallel are used. For example, "substantially parallel" means not only being completely parallel, but also being substantially parallel, that is, including an error of, for example, several percent. Also, "substantially parallel" means "parallel" as long as 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 will be referred to as the Z-axis direction, and the direction in which the first locking portions and the second locking portions are arranged will be referred to as the Y-axis direction. A direction perpendicular to each of the Z-axis direction and the Y-axis direction is called the X-axis direction. In addition, the vertically upward direction in the Z-axis direction is called the Z-axis plus direction, and the opposite direction is called the minus direction. The same applies to FIG. 2 and subsequent drawings.

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

(Embodiment)
<Configuration>
FIG. 1 is a perspective view of a lighting device 1 with an adapter 10 attached to a lighting fixture 100 and a hook ceiling 3 in an embodiment.

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

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

As shown in FIGS. 1 to 3, lighting device 1 includes adapter 10 and lighting fixture 100 .

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

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

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

The housing 20 has a front surface 10a facing the hook ceiling 3 and a rear surface 10b opposite to the front surface 10a. The surface 10a is a surface on the Z-axis plus direction side and is substantially parallel to the XY plane. Further, the back surface 10b is a surface on the Z-axis negative direction side, and is substantially parallel to the XY plane.

The housing 20 has a body portion 21 forming a front surface 10a and a cover 22 forming a rear surface 10b.

The main body 21 is a bottomed cylindrical container that is flat in the Z-axis direction and that contains each component of the adapter 10, and is made of an insulating resin material. The body portion 21 has a cylindrical side wall portion 21a with an open end in the negative Z-axis direction, and a bottom portion 21b whose end in the positive Z-axis direction forms the surface 10a of the housing 20 .

As shown in FIG. 2, from the front surface 10a of the body portion 21, the hooking edge 51a of the first terminal 51 and the hooking edge 52a of the second terminal 52 protrude in the positive Z-axis direction. The bottom portion 21b of the body portion 21 is formed with insertion holes through which the first terminal 51 and the second terminal 52 are inserted.

At the central portion of the surface 10a of the body portion 21, there is a reference surface which is a surface on the Z-axis positive direction side and which is a contact surface that comes into contact with the hook ceiling 3 when the adapter 10 is attached to the hook ceiling 3 in FIG. 29 are formed. The planar view shape of the reference plane 29 is a substantially rectangular frame shape.

FIG. 4 is a cross-sectional view of the illumination device 1 taken along line IV-IV of FIG. FIG. 5 is a partially enlarged cross-sectional view showing a first state in which lighting fixture 100 according to the embodiment is normally fixed to adapter 10. FIG.

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

Further, as shown in FIGS. 2 and 3, the side wall portion 21a of the main body portion 21 is formed with a second protrusion 21e that engages with the first protrusion 124 formed on the holder 120 of the lighting device 100. . 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 lighting device 100 in a predetermined direction). releases the first state fixed to the adapter 10 . That is, when the first state in which the lighting device 100 is fixed to the adapter 10 is released, the second projection 21e engages with the first projection 124 formed on the lighting device 100, thereby transitions the first state in which it is fixed to the adapter 10 to a second state in which it is temporarily fixed, and the lighting device 100 is temporarily fixed to the adapter 10 . The second convex portion 21e protrudes 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 21 e 1 is inclined downward with respect to the rotation direction of the lighting device 100 . In the present embodiment, the lighting fixture 100 has only two rotational directions (clockwise and counterclockwise), so 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 from above. Here, the central axis O is substantially parallel to the Z-axis direction.

When the lighting fixture 100 rotates, the first convex part 124 of the lighting fixture 100 slides in contact with the inclined surface 21e1 of the second convex part 21e, so that the first convex part 124 and the second convex part 21e , exerts a biasing force that moves the lighting fixture 100 in the negative Z-axis direction.

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

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

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

A second power supply terminal 123b of a holder 120, which will be described later, is inserted into the second insertion opening 22b, forming an annular opening in plan view. The second insertion opening 22b is formed around (surrounding) the first insertion opening 22a, and is formed concentrically with the first insertion opening 22a.

The depth direction of the first insertion opening portion 22a and the second insertion opening portion 22b and the attaching/detaching direction of the first power supply terminal 123a and the second power supply terminal 123b are substantially parallel to the Z-axis direction.

[First locking portion 31 and second locking portion 32]
The first locking portion 31 and the second locking portion 32 are members made of resin for the adapter 10 to hold the lighting fixture 100 in a predetermined posture. That is, the first locking portion 31 and the second locking portion 32 are members for locking the lighting fixture 100 to the adapter 10 . The first locking portion 31 and the second locking portion 32 project from the outer peripheral surface 10c of the adapter 10 so as to be able to advance and retreat, thereby fixing the lighting device 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 synchronize with each other. Although two locking portions are used in this embodiment, the number of locking portions may be three or more, or may be one.

The first locking portion 31 is urged from the inside to the outside of the housing 20 by the elastic member 40 and protrudes from the first opening 21 c of the body portion 21 toward the outside of the body portion 21 . The second locking portion 32 is biased from the inside to the outside of the housing 20 by the elastic member 40 and protrudes from the second opening 21 d of the body portion 21 toward the outside of the body portion 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 locking main body 33 is provided in the first opening 21 c and the second opening 21 d of the body portion 21 and partially protrudes from the outer peripheral surface 10 c of the body portion 21 . The locking main body 33 and the engaging protrusion 34 are integrally formed.

Each locking body 33 is in the shape of a rectangular flat plate flattened in the Z-axis direction. A protruding portion of the locking body 33 that protrudes from the outer peripheral surface 10c of the main body portion 21 is arcuate along the shape of the outer peripheral surface 10c of the main body portion 21 . The projecting portion of each locking body 33 is also a portion forming part of the outer peripheral surface 10 c of the adapter 10 . The projecting portion of each locking body 33 is engaged with the holder 120 to become a portion for fixing the lighting fixture 100 to the adapter 10 . The protruding portion of each locking body 33 is formed stepwise.

Specifically, each locking body 33 has a fixing portion 35 and a temporary fixing portion 36 that are formed in the projecting portion of the locking body 33 .

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

The fixing portion 35 fixes the lighting device 100 to the adapter 10 by locking the locked portion 122b of the holder 120 of the lighting device 100, as shown in FIG. 6A. In this case, each of the first locking portion 31 and the second locking portion 32 protrudes from the outer peripheral surface 10c of the adapter 10 by the first amount A1 when the lighting fixture 100 is fixed to the adapter 10. becomes. Here, the first state means a normally attached state in which the adapter 10 is inserted and fixed in the holder 120 of the lighting device 100 . The state in which the lighting device 100 is normally attached means that even if an attempt is made to move the lighting device 100 in the Z-axis direction, the movement of the lighting device 100 is restricted (the first contact surface 35a of the fixing portion 35 and the locked portion 122b contact surface 122 a 1 ), and the third terminal 53 and the fourth terminal 54 are connected to the connector portion 70 .

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

The fixing portion 35 is formed in a stepped shape on the surface 10a of the body portion 21 when the adapter 10 is viewed from the side. A first contact surface 35 a lower than the surface 10 a of the body portion 21 is formed on the fixed portion 35 . The first contact surface 35a abuts against the locked portion 122b of the holder 120 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 fixing portion 35 faces the locked portion 122b of the holder 120, and the first contact surface 35a contacts the locked portion 122b of the holder 120. , the locked portion 122b of the holder 120 is locked.

Further, as shown in FIG. 6A , in the first state, the diameter of the circle S1 including the outer peripheral surface 37 of the 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 temporarily fixes the lighting fixture 100 to the adapter 10 by engaging with the locked portion 122b. In this case, each of the first locking portion 31 and the second locking portion 32 has a second amount less than the first amount A1 from the outer peripheral surface 10c of the adapter 10 when the lighting device 100 is temporarily fixed to the adapter 10 . A second state in which only the amount A2 protrudes is obtained. In the second state, the diameter of the outermost circumference circle S3 of the adapter 10 at the second amount A2 is larger than the diameter of the outermost circumference of the adapter 10 at the first amount A1. Here, the second state is a state in which the adapter 10 is inserted into the holder 120 of the lighting device 100 and temporarily fixed, and the second contact surface 36a of the temporary fixing portion 36 and the contact surface of the engaged portion 122b 122a1 are in contact with each other. That is, in the second state, the lighting device 100 is not fixed to the adapter 10 as firmly as in the first state. For example, when the temporary fixing portion 36 is engaged with the locked portion 122b, the lighting fixture 100 is supported by the adapter 10, but the lighting fixture 100 is pulled down in the negative Z-axis direction to move the lighting fixture 100 in the Z-axis direction. In some cases, movement of the luminaire 100 may be permitted.

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

When the adapter 10 is viewed from the side, the temporary fixing portion 36 is formed in a stepped shape with respect to the first contact surface 35a of the fixing portion 35, and extends further from the side wall portion 21a of the main body portion 21 than the fixing portion 35. It protrudes outward in the direction. The temporary fixing portion 36 is formed with a second contact surface 36a that is lower than the first contact surface 35a of the fixing portion 35 (on the negative Z-axis direction side). That is, the temporary fixing portion 36 and the fixing portion 35 form a stepped structure in the projecting portion of the locking body 33 .

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

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

6B is an enlarged view schematically enlarging the fixing portion 35 of the second locking portion 32. FIG.

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

In the locking main body 33, when the adapter 10 is cut along a plane that includes the central axis O of the first adapter 10 and is parallel to the attachment/detachment direction of the adapter 10 with respect to the hook ceiling 3, the first locking portion 31 and the second locking portion 32 are formed. is engaged with the engaged portion 122b of the holder 120 in the first state, the first contact surface 35a of the fixing portion 35 contacting the engaged portion 122b of the holder 120, and the adapter 10 against the hook ceiling 3 The first angle θ1 formed by the outer peripheral surface 10c of the adapter 10 parallel to the attachment/detachment direction (Z-axis direction) is the locked portion of the holder 120 when the first locking portion 31 and the second locking portion 32 are in the second state. A second contact surface 36a of the temporary fixing portion 36 that contacts the engaged portion 122b of the holder 120 when engaging with the hooked portion 122b, and an outer peripheral surface 10c of the adapter 10 that is parallel to the attachment/detachment direction of the adapter 10 with respect to the hook ceiling 3. is smaller than the second angle θ2 formed by In other words, the second angle θ2 between the outer peripheral surface 37 of the locking body 33 (or the fixing portion 35) and the second contact surface 36a is the angle between the first contact surface 35a and the locking body 33 (or the fixing portion 35). is larger than the first angle θ1 formed with the outer peripheral surface 37 of the . That is, in the locking main body 33, when the first locking portion 31 and the second locking portion 32 lock the locked portion 122b of the lighting device 100 in the first state, the locking body 33 forms the first angle θ1. The locking force in the removal direction (Z-axis minus direction) when the first locking portion 31 and the second locking portion 32 lock the locked portion 122b in the first state at the portion 35 is 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 in the temporary fixing portion 36 forming the second angle θ2 with the outer peripheral surface 37 of larger than the locking force of Therefore, in the second state, it is easier to remove the lighting device 100 from the adapter 10 than in the first state.

As shown in FIGS. 3 to 5, the engaging protrusion 34 is formed integrally with the locking body 33 and provided to extend from the locking body 33. As shown in FIGS. Specifically, the engaging protrusion 34 extends from the edge of the locking body 33 opposite to the projecting portion of the locking body 33 in the direction of the central axis O of the adapter 10 (the center of the main body 21 in the radial direction). protrude to

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 biased radially outward from the side wall portion 21 a of the main body portion 21 by the elastic member 40 together with the locking main body 33 . The radially outer side is the direction away from the radial center of the body portion 21 .

[Elastic member 40]
The elastic member 40 is a torsion spring in this embodiment, but may be another elastic member 40 . The elastic member 40 biases the first locking portion 31 and the second locking portion 32 radially outward of the side wall portion 21 a of the body portion 21 . The elastic member 40 projects the first locking portion 31 and the second locking portion 32 forward and backward relative to the side wall portion 21a (the outer peripheral surface 10c) of the body portion 21 .

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

[First terminal 51 and second terminal 52]
The first terminal 51 and the second terminal 52 are detachably fixed to the hook ceiling 3 of FIG. 1 which is electrically connected to wiring to which power is supplied. The first terminal 51 and the second terminal 52 are plate-shaped members made of metal, and are a pair of terminals for the lighting device 100 to receive 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 body portion 21 by fixing members such as screws. Although two terminals, 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 feeding port 3a of the hook ceiling 3, and one end of the second terminal 52 is also inserted into the power feeding port 3a of the hook ceiling 3, whereby The first terminal 51 and the second terminal 52 are electrically connected to a pair of power supply terminals (not shown) inside the hook ceiling 3 . The lighting fixture 100 is supplied with AC power from the hook ceiling 3, for example, but may be supplied with DC power.

As shown in FIG. 3 , one end portion of the first terminal 51 and one end portion of the second terminal 52 are hooking blades 51 a and 52 a protruding from the surface 10 a of the body portion 21 . 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.

1 and 3, the hooking blade 51a of the first terminal 51 is inserted into the power feeding port 3a of the hooking ceiling 3, and the hooking blade 52a of the second terminal 52 is also inserted into the power feeding port 3a of the hooking ceiling 3. As shown in FIGS. , the adapter 10 is mechanically connected to the hook ceiling 3. The adapter 10 is rotated in a state in which the hooking blade 51a of the first terminal 51 is inserted into the power feeding port 3a of the hooking ceiling 3 and the hooking blade 52a of the second terminal 52 is inserted into the power feeding port 3a of the hooking ceiling 3. Then, the first terminal 51, the second terminal 52, and the locking portion 80 are caught by the hook ceiling 3, thereby preventing rotation.

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

[Third terminal 53 and fourth terminal 54]
The third terminal 53 and the fourth terminal 54 are plate-like members made of metal, and are a pair of terminals for the lighting fixture 100 to receive power supply 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 . 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 of the main body portion 21 by fixing the first terminal 51 to the inner bottom portion 21b of the body portion 21 with a fixing member such as a screw. Further, the fourth terminal 54 is pressed and fixed to the inner bottom portion 21b of the main body portion 21 by fixing the second terminal 52 to the inner bottom portion 21b of the main body portion 21 with 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 inside the first insertion opening 22a. Further, the other end portion 54a of the fourth terminal 54 is arranged inside the second insertion opening portion 22b. The other end portion 53a of the third terminal 53 is a fork-shaped 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 portion 54a of the fourth terminal 54 is a fork-shaped 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 portion 53a of the third terminal 53 and the other end portion 54a of the fourth terminal 54 accept insertion of the first power supply terminal 123a and the second power supply terminal 123b in the Z-axis positive direction.

In addition, one member in which the first terminal 51 and the third terminal 53 are integrated may be used, and one member in which the second terminal 52 and the fourth terminal 54 are integrated may be used.

[Connector part 70]
The connector part 70 is provided on the rear surface 10b on the side opposite to the surface 10a on which the first terminal 51 and the second terminal 52 are provided in the adapter 10, and the hook shown in FIG. It conducts with the ceiling 3 and supplies power to the lighting fixture 100 .

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

Also, the connector part 70 is detachably provided to the first power supply terminal 123 a and the second power supply terminal 123 b which are the connected part 123 of the lighting device 100 . The connector portion 70 is electrically connected to the connector-receiving portion 123 of the lighting fixture 100 in the first state, and is electrically disconnected from the connector-receiving portion 123 of the lighting fixture 100 in the second state. Here, the connector-receiving portion 123 is composed of a first power supply terminal 123a and a second power supply terminal 123b.

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

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

The extending portion 81 protrudes from an opening provided on the surface 10 a of the body portion 21 and is inserted into the power supply port 3 a provided on the ceiling hook 3 , thereby restricting movement of the adapter 10 with respect to the ceiling hook 3 .

One end of the coil spring contacts the bottom portion 21b in the spring hole and the other end contacts the inner surface of the cover 22, thereby urging the lock portion 80 in the positive direction of the Z axis.

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

As shown in FIGS. 1 and 3 , for example, when the adapter 10 is rotated and the position of the extension 81 overlaps with the power supply port 3 a of the hook ceiling 3 , the extension 81 engages with the coil. Due to the biasing force of the spring, it protrudes further from the opening provided on the surface 10a of the body portion 21 and is inserted into the power supply port 3a of the hook ceiling 3. As shown in FIG. As a result, the rotation of the adapter 10 with respect to the hooking ceiling 3 is restricted, and the rotation of the adapter 10 with respect to the hooking ceiling 3 is locked.

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

A pin 91 that slides with respect to the lock portion 80 is formed on the unlock button 90 . The pin 91 is slidably moved in the guide portion 82 of the lock portion 80 by being engaged with the guide portion 82 of the lock portion 80 when the lock release button 90 is pushed inside the body portion 21 .

For example, when the pin 91 moves in the direction in which the unlock button 90 is pushed, the pin 91 pushes the inner wall of the guide portion 82 in the negative Z-axis direction, thereby moving the lock portion 80 in the negative Z-axis direction. As a result, the extending portion 81 is pulled out from the power supply port 3a of the hooking ceiling 3 against the biasing force of the coil spring. As a result, the rotation restriction of the adapter 10 with respect to the hook ceiling 3 is released. The adapter 10 can be rotated with respect to the hook ceiling 3 while pressing the lock release button 90, and the adapter 10 can be removed from the hook ceiling 3. - 特許庁

<Lighting equipment 100>
As shown in FIGS. 2 and 4, the lighting fixture 100 includes a fixture body 110 containing a light source 130, a holder 120 to which the adapter 10 is detachably attached, a light source 130, a diffusion cover 140, and a power supply section 150. have In the present embodiment, lighting fixture 100 is a bottomed cylindrical fixture that is circular in plan view and flattened in the Z-axis direction.

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

The tool body 110 contains a holder 120, a power supply unit 150, and the like. and a flange portion 112 extending in the radial direction of the central axis O of the lighting device 100 .

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

Further, the flange portion 112 has an annular shape extending in the radial direction of the housing portion 111 from the edge of the housing portion 111 on the negative side of the Z-axis. The light source 130 is fixed by a fixing member such as a screw to the surface of the collar portion 112 on the negative Z-axis direction side. A diffusion cover 140 is fixed to the outer peripheral edge of the collar 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 that contains the adapter 10 . The holder 120 has a circular shape in plan view. The holder 120 is made of, for example, an insulating resin material.

The holder 120 includes a cylindrical outer wall portion 121 formed with an insertion opening 122a that opens the end on the positive side of the Z axis, a bottom portion 122 that closes the end of the outer wall portion 121 on the negative side of the Z axis, It has a first power supply terminal 123a and a second power supply terminal 123b.

The outer peripheral wall portion 121 is fixed to the housing 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 brim-shaped fixing piece 121a projecting radially outward from the edge on the positive side of the Z axis. In a state in which the outer peripheral wall portion 121 is inserted into the opening portion 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 portion 113 of the accommodating portion 111, the fixed piece 121a is , and 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 .

When the holder 120 (lighting device 100) is rotated in the circumferential direction around the central axis O with respect to the adapter 10, the third protrusion 125 is configured to engage the first locking portion 31 and the second locking portion 32 of the adapter 10. , the amount of protrusion 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.

The third convex portion 125 is a convex structure that exerts a biasing force to move 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 abuts on the first locking portion 31 and the second locking portion 32 of the adapter 10 , thereby locking the first locking portion 125 . It has a protrusion amount that allows the portion 31 and the second locking portion 32 to move in the direction of the central axis O of the adapter 10 . More specifically, the third projecting portion 125 has a protrusion amount sufficient to release the locking between the fixed portion 35 and the locked portion 122b of each of the first locking portion 31 and the second locking portion 32. However, it does not have a protrusion amount sufficient to release the engagement between the temporary fixing portion 36 of each of the first locking portion 31 and the second locking portion 32 and the locked portion 122b.

The outer peripheral wall portion 121 has a locked portion 122b projecting from the edge in the positive direction of the Z axis 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 .

In the first state in which the lighting device 100 is fixed to the adapter 10 in a normal state, the locked portion 122b is the locking main body of each of the first locking portion 31 and the second locking portion 32. It abuts on 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 Z-axis negative direction side (the surface facing the fixed portion 35), is the first contact surface of the fixed portion 35. It abuts on the surface 35a.

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

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 engages with the second convex portion 21 e of the adapter 10 when rotating the holder 120 (lighting fixture 100 ) in the circumferential direction around the central axis O with respect to the adapter 10 , thereby turning on the illumination. The state of the adapter 10 fixed to the instrument 100 is changed to the temporarily fixed state.

The first convex portion 124 is a convex structure that exerts an urging force that pushes down the lighting fixture 100 in the negative Z-axis direction via the holder 120 . More specifically, the first convex portion 124 is a substantially triangular convex structure when viewed from the front, but is not limited thereto. For example, the second convex portion 21e of the holder 120 that rotates about the central axis O of the adapter 10 may ride up to exert a biasing force that pushes down the lighting device 100 in the negative Z-axis direction via the holder 120. It is sufficient that an inclined surface that is inclined upward with respect to the circumferential direction around the central axis O of the adapter 10 is formed.

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

[First power supply terminal 123a and second power supply terminal 123b]
The first power supply terminal 123a is a columnar terminal, a connection terminal for supplying power supplied from the hook ceiling 3 of FIG. 1 through the adapter 10, and a male connector portion. A fixing member such as a screw is attached to the bottom portion 122 of the holder 120 so that the center axis O of the first power supply terminal 123a substantially coincides with the center axis O of the adapter 10 and the center axis O of the outer peripheral wall portion 121. fixed by

The second power supply terminal 123b is a cylindrical terminal, a connection terminal for supplying power supplied from the hook ceiling 3 through the adapter 10, and a male connector portion. The second power supply terminal 123b is formed around (surrounding) the first power supply terminal 123a and formed concentrically with the first power supply terminal 123a. The second power supply terminal 123b is fixed to the bottom portion 122 of the holder 120 by a fixing member such as a screw 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. Fixed. In addition, since the second power supply terminal 123b only needs to surround the first power supply terminal 123a, the second power supply terminal 123b does not have to be cylindrical.

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

In this embodiment, the first power supply terminal 123a is a cylindrical pin, and the second power supply terminal 123b is an annular (cylindrical) terminal.

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

The light source 130 has 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 thereon. The substrate 131 is formed in a substantially disc shape. The substrate 131 is fixed to the attachment surface of the flange portion 112 of the instrument body 110 by a fixing member such as a screw so as to cover the container of the instrument body 110 when viewed in the Z-axis plus direction. Specifically, the substrate 131 is fixed to the device main body 110 in a posture substantially parallel to the XY plane so that the mounting surface faces the negative Z direction.

As the substrate 131, for example, 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 that is a sintered body of a ceramic material such as alumina, or a resin material. A base resin substrate or the like is used. The board 131 may be a printed wiring board, a rigid board, or a flexible board.

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

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

In addition, the plurality of LED modules 132 may be surface-mounted (SMD) type LED elements in which LEDs are packaged, and include a container (package) and a plurality of LED chips mounted in the container. and a sealing member for sealing the plurality of LED chips. The sealing member is a translucent insulating resin material such as silicone resin. A light diffusing material such as silica, a filler, and the like may be dispersed in the sealing member.

In this embodiment, the multiple LED modules 132 emit light in a direction substantially parallel to the negative Z-axis direction. Specifically, the optical axis of the plurality of LED modules 132 is the main emission direction of light, and is a direction substantially parallel to the negative Z-axis direction.

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

The diffusion cover 140 has translucency. For example, the diffusion cover 140 is made of a translucent material such as acrylic resin. For example, the diffusion cover 140 may use a milky-white diffusion panel with a light diffusion material dispersed therein. In addition, the surface 10a of the diffusion cover 140 may be provided with fine unevenness (texturing) by texturing or the like. Accordingly, the light emitted from the light source 130 and incident on the diffusion cover 140 is scattered by passing through the diffusion cover 140 . As a result, luminance unevenness that appears on the diffusion cover 140 when the diffusion cover 140 is viewed from the negative Z-axis direction is reduced.

[Power supply unit 150]
The power supply unit 150 is a power supply module having a lighting circuit that supplies power for lighting the light source 130 . The power supply unit 150 rectifies, smoothes, steps down, etc., the AC current supplied from an external power supply such as a commercial power supply via the ceiling 3 and the adapter 10, and converts it into DC power of a predetermined level. The power supply unit 150 supplies the converted DC current to the light source 130 via a lead wire or the like. Note that the power supply unit 150 may be combined with a dimming circuit, a booster circuit, and the like.

The power supply unit 150 is composed of, for example, a printed circuit board on which metal wiring having a predetermined shape is formed, and a plurality of circuit elements mounted on the printed circuit board. A circuit element is an electronic component for causing the light source 130 to emit light. , an integrated circuit element (IC), or a semiconductor element (such as an FET).

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

<Action>
First, the case of attaching the adapter 10 to the hook ceiling 3 will be described.

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

Next, the case of attaching the lighting device 100 to the adapter 10 will be described.

As shown in FIGS. 2, 4 and 5, the holder 120 of the lighting device 100 and the adapter 10 are aligned so as to overlap each other, and the lighting device 100 is inserted so that the adapter 10 is inserted through the insertion opening 122a of the holder 120. push up. At this time, the first locking portion 31 and the second locking portion 31 and the second locking portion are engaged while the first locking portion 31 and the second locking portion 32 of the adapter 10 and the locked portion 122b of the holder 120 slide in contact with each other. 32 moves in the central axis O direction of the adapter 10 by being pressed against the locked portion 122b. Thereby, the adapter 10 can be inserted from the insertion opening 122 a of the holder 120 of the lighting device 100 .

When the adapter 10 is inserted into the holder 120 of the lighting fixture 100 , the first locking portion 31 and the second locking portion 32 move radially outward of the adapter 10 due to the biasing force of the elastic member 40 . The outer peripheral surface 37 of the fixing portion 35 of the first locking portion 31 and the outer peripheral surface 37 of the fixing portion 35 of the second locking portion 32 are in contact with the inner peripheral surface of the locked portion 122b. The second contact surface 36a of the temporary fixing portion 36 and the second contact surface 36a of the temporary fixing portion 36 of the second locking portion 32 contact the locked portion 122b. That is, the locked portion 122b is in the second state in which it is 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, and the lighting device 100 and the adapter 10 are in the second state. are not electrically connected. That is, 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. not connected to

Furthermore, when the adapter 10 is inserted into the holder 120 of the lighting fixture 100, the inner peripheral surface of the locked portion 122b, the outer peripheral surface 37 of the fixed portion 35 of the first locking portion 31, and the second locking portion 32 After the outer peripheral surface 37 of the fixed portion 35 slides, the first locking portion 31 and the second locking portion 32 move further in the outer diameter direction of the adapter 10 due to the biasing force of the elastic member 40 . In other words, when the locked portion 122b separates from the fixing portion 35 of the first locking portion 31 and the fixing portion 35 of the second locking portion 32, the biasing force of the elastic member 40 causes the first locking portion 31 and the second locking portion 31 to move apart. The locking portion 32 returns to its original posture. The position of the first locking portion 31 and the second locking portion 32 indicated by the two-dot chain line in FIG. 5 is displaced to the position of the first locking portion 31 and the second locking portion 32 indicated by the solid line. At this time, the first power supply terminal 123 a of the holder 120 is inserted into the first insertion opening 22 a and electrically connected to the other end 53 a of the third terminal 53 . Also, the second power supply terminal 123 b of the holder 120 is inserted into the second insertion opening 22 b and electrically connected to the other end 54 a of the fourth terminal 54 .

The gravitational force of the lighting fixture 100 fixes the Z-axis negative side surface of the locked portion 122b of the holder 120 to the first contact surface 35a of the fixing portion 35 of the first locking portion 31 and the second locking portion 32. The first contact surface 35a of the portion 35 contacts. As a result, the lighting fixture 100 is fixed to the adapter 10 in a normal state and is firmly held, thereby receiving power supply from the hanging ceiling 3 .

Next, the case of detaching the lighting fixture 100 from the adapter 10 will be described.

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

As shown in FIGS. 7, 8A, and 8B, when the lighting fixture 100 is rotated in the circumferential direction of the central axis O (the direction of the arrow in FIG. 7), the first convex portion 124 of the holder 120 and the main body of the adapter 10 are rotated. The second convex portion 21e of the portion 21 abuts against it, and the second convex portion 21e slides on the first convex portion 124 to push down the lighting device 100 in the negative Z-axis direction. At this time, as shown in FIGS. 9A and 9B, the third convex portion 125 in the holder 120 slides in contact with the fixing portion 35 of the first locking portion 31 and the fixing portion 35 of the second locking portion 32. However, when the fixing portion 35 of the first locking portion 31 and the fixing portion 35 of the second locking portion 32 are pressed by the respective third protrusions 125, the first locking portion 31 and the second locking portion 32 moves in the central axis O direction of the adapter 10 .

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

As a result, as shown in FIG. Since the lighting fixture 100 moves away from the contact surface 122b1 of the locked portion 122b (the first state is released) and moves in the negative direction of the Z axis, the locked portion 122b is the temporary fixing portion of the first locking portion 31. 36 and the second contact surface 36a of the temporary fixing portion 36 of the second locking portion 32 . The position of the first locking portion 31 and the second locking portion 32 indicated by the two-dot chain line in FIG. 10 is displaced to the position of the first locking portion 31 and the second locking portion 32 indicated by the solid line. At this time, the first power supply terminal 123a of the holder 120 is separated from the other end portion 53a of the third terminal 53 and electrically disconnected. Also, the second power supply terminal 123b of the holder 120 is separated from the other end portion 54a of the fourth terminal 54 and electrically disconnected. In this way, the lighting fixture 100 is held by the adapter 10 in the second state in which the temporary fixing portion 36 of the first locking portion 31 and the temporary fixing portion 36 of the second locking portion 32 are temporarily fixed.

Then, when the lighting device 100 is pushed down in the Z-axis negative direction, the locked portion 122b contacts the second contact surface 36a of the temporary fixing portion 36 of the first locking portion 31 and the temporary fixing portion of the second locking portion 32. The first locking portion 31 and the second locking portion 32 move in the direction of the central axis O of the adapter 10 by being pushed by the locked portion 122b while sliding in contact with the second contact surface 36a of the adapter 10. do. Thereby, the lighting device 100 can be removed from the adapter 10 .

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

As described above, the adapter 10 in the present embodiment is an adapter 10 for electrically and mechanically connecting the hook ceiling 3 and the lighting fixture 100, and is electrically connected to wiring to which power is supplied. a plurality of hooking blades 51a and 52a detachably fixed to the hooking ceiling 3, and a plurality of hooking blades 51a and 52a provided on the rear surface 10b opposite to the surface 10a of the adapter 10 on which the plurality of hooking blades 51a and 52a are provided. A connector portion 70 that is electrically connected to the hooking blades 51a and 52a and that supplies power to the lighting fixture 100, and a first locking portion that projects from the outer peripheral surface 10c of the adapter 10 so as to move back and forth to fix the lighting fixture 100 to the adapter 10. A portion 31 and a second locking portion 32 are provided. In addition, the first locking portion 31 and the second locking portion 32 respectively lock the locked portion 122b of the lighting fixture 100, thereby fixing the lighting fixture 100 to the adapter 10. It has a temporary fixing portion 36 for temporarily fixing the lighting fixture 100 to the adapter 10 by engaging with the locking portion 122b. Further, the temporary fixing portion 36 has a contact surface 122b1 that contacts the locked portion 122b when the lighting device 100 is temporarily fixed to the adapter 10. As shown in FIG. The abutment surface 122b1 is a second abutment surface 36a that slopes downward in a direction away from the outer peripheral surface 10c of the adapter 10 with respect to a virtual plane V perpendicular to the direction in which the adapter 10 is attached to and detached from the hook ceiling 3 .

According to this, when the lighting device 100 is removed from the hook ceiling 3, for example, by rotating the lighting device 100, the fixing portions 35 of the first locking portion 31 and the second locking portion 32 and the locked portions 35 of the first locking portion 31 and the second locking portion 32 are separated from each other. The engagement with the portion 122b is released. When the locking is released, the lighting fixture 100 moves vertically downward with respect to the adapter 10 due to its own weight. 10 to prevent the lighting fixture 100 from falling.

Therefore, according to this adapter 10, even if the lighting device 1 is moved unexpectedly, it is possible to prevent the lighting device 1 from falling.

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 with each other, the lighting apparatus 100 can be pushed down to achieve the first engagement. As the stopping portion 31 and the second locking portion 32 move, the engagement between the locked portion 122b and the temporary locking portion 36 is released. Therefore, the lighting fixture 100 can be removed reliably and safely.

Moreover, lighting device 1 in the present embodiment includes adapter 10 and lighting fixture 100 electrically connected to adapter 10 .

This luminaire 100 also has the same effect as described above.

Moreover, in the adapter 10 according to the present embodiment, each of the first locking portion 31 and the second locking portion 32 is arranged to extend from the outer peripheral surface 10c of the adapter 10 to the first locking portion 32 when the lighting fixture 100 is fixed to the adapter 10 . It will be in the 1st state which only the amount A1 protrudes.

According to this, in the first state, the fixing portions 35 of the first locking portion 31 and the second locking portion 32 are locked to the locked portion 122b, so that the lighting apparatus 100 is prevented from moving in the vertical direction. can be suppressed. Therefore, even if the lighting device 100 is moved unexpectedly, the first locking portion 31 and the second locking portion 32 can reliably fix the lighting device 100 to the adapter 10 . As a result, the adapter 10 can further prevent the illumination device 1 from falling.

Moreover, in the adapter 10 according to the present embodiment, each of the first locking portion 31 and the second locking portion 32 is configured to extend from the outer peripheral surface 10c of the adapter 10 to the second locking portion 32 when the lighting fixture 100 is temporarily fixed to the adapter 10 . It will be in the second state in which it protrudes by a second amount A2 that is less than the first amount A1.

According to this, even if the first state is released, the transition from the first state to the second state occurs. 10 can be held in a predetermined posture. As a result, the adapter 10 can further prevent the illumination device 1 from falling.

Further, in the adapter 10 according to the present embodiment, when the adapter 10 is cut along a plane that includes the central axis O of the adapter 10 and is parallel to the attachment/detachment direction of the adapter 10 with respect to the hook ceiling 3, the first locking portion 31 and the second When the second locking portion 32 locks the locked portion 122b in the first state, the first contact surface 35a of the fixing portion 35 that contacts the locked portion 122b and the attachment/detachment of the adapter 10 with respect to the hook ceiling 3. Detachment when the first locking portion 31 and the second locking portion 32 lock the locked portion 122b in the first state at the first angle θ1 formed by the outer peripheral surface 10c of the fixing portion 35 parallel to the direction The locking force in the direction is the contact surface 122b1 that contacts the locked portion 122b when the first locking portion 31 and the second locking portion 32 engage with the locked portion 122b in the second state. At a second angle θ2 between the second contact surface 36a of a certain temporary fixing portion 36 and the outer peripheral surface 10c of the fixing portion 35 parallel to the attaching/detaching direction of the adapter 10 with respect to the hook ceiling 3, the first locking portion 31 and the second It is larger than the locking force in the removal direction when the second locking portion 32 engages with the locked portion 122b in the second state.

According to this, it is easier to remove the lighting device 100 from the adapter 10 in the second state than in the first state. Therefore, in the first state, vertical movement of the lighting fixture 100 with respect to the adapter 10 is suppressed, so that the lighting fixture 100 can be reliably fixed to the adapter 10 . Also, in the second state, it becomes easier to remove the lighting device 100 from the adapter 10 than in the first state.

In the adapter 10 according to the present embodiment, the connector portion 70 is detachably attached to the connector-receiving portion 123 of the lighting fixture 100, and is electrically connected to the connector-receiving portion 123 of the lighting fixture 100 in the first state. , and is electrically disconnected from the connector-receiving portion 123 of the lighting fixture 100 in the second state.

According to this, since power is supplied to the lighting device 100 in the first state, lighting of the lighting device 100 ensures electrical and mechanical connection between the lighting device 100 and the adapter 10. The user can recognize that the In addition, in the case of the second state, since power is not supplied to the lighting fixture 100, the lighting fixture 100 does not turn on, resulting in incomplete electrical connection and mechanical connection between the lighting fixture 100 and the adapter 10. The user can recognize that In this case, the user attaches the lighting fixture 100 to the adapter 10 so as to securely fix the lighting fixture 100 to the adapter 10 . As a result, with this adapter 10, the lighting fixture 100 is more likely to be prevented from falling.

Further, the adapter 10 according to the present embodiment includes a housing 20 provided with a plurality of hooking blades 51a and 52a, a connector portion 70, a first locking portion 31 and a second locking portion 32. As shown in FIG. The housing 20 also has a second protrusion 21e that cancels the first state in which the lighting fixture 100 is fixed to the adapter 10 by rotating the lighting fixture 100 in a predetermined direction, projecting by the first amount. is formed.

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

However, according to the present embodiment, by rotating the lighting device 100 in a predetermined direction, the second convex portion 21e of the adapter 10 and the first convex portion 124 of the lighting device 100 contact and slide. , the rotational force of the lighting fixture 100 serves as a vertically downward biasing force. This allows the user to recognize the vertical downward movement of the lighting device 100 . As a result, according to this adapter 10, the lighting fixture 100 can be removed safely and easily.

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

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

In addition, in the lighting device 1 according to the present embodiment, the holder 120 engages with the second convex portion 21e formed on the adapter 10 by rotating the lighting fixture 100 in a predetermined direction, so that the lighting fixture A first convex portion 124 is formed to change the state of the adapter 10 fixed to 100 to the temporarily fixed state.

This illumination device 1 also has the same effect as described above.

In lighting device 1 according to the present embodiment, lighting fixture 100 includes light source 130, fixture body 110 housing light source 130, and holder 120 to which adapter 10 is detachably attached. When the lighting device 100 is rotated in a predetermined direction, the holder 120 abuts on the first locking portion 31 and the second locking portion 32 respectively, thereby providing a first locking force to the outer peripheral surface 10 c of the adapter 10 . A third convex portion 125 is formed to change the amount of protrusion of the locking portion 31 and the second locking portion 32 .

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

(Modification of Embodiment)
Configurations of the adapter 10, the lighting device 1, and the lighting fixture 100 of this modified example will be described.

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

This modification differs from the embodiment in that the holder 120a of the lighting device 100 is provided with two locked portions.

Other configurations in this modified example are the same as those in the embodiment unless otherwise specified, and the same configurations are denoted by the same reference numerals, and detailed description of the configuration is omitted.

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

The first engaged portion 222a engages with each of the first engaging portion 31 and the second engaging portion 32 in the first state in which the lighting device 100 is fixed to the adapter 10 in a normal state. It abuts on the fixing portion 35 of the stopper body 33 . More specifically, in the case of the first state, the fourth contact surface 222a1, which is the surface of the first locked portion 222a on the Z-axis negative direction side (surface facing the fixed portion 35), is aligned with the fixed portion 35. It contacts with the first contact surface 35a.

The first engaged portion 222a is an annular convex portion formed on the Z-axis negative direction side of the second engaged portion 222b, and extends from the inner peripheral surface of the outer peripheral wall portion 121 to the inner diameter of the outer peripheral wall portion 121. It protrudes to make it narrower. The first locked portion 222a is formed on the inner peripheral surface of the outer peripheral wall portion 121 and positioned between the second locked portion 222b and the bottom portion 122 of the holder 120a.

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

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

As described above, the lighting fixture 100 in this modified example is a lighting fixture 100 electrically connected to the hook ceiling 3 via the adapter 10, and includes the light source 130, the fixture main body 110 that accommodates the light source 130, the fixture A holder 120a fixed to the main body 110 and to which the adapter 10 is detachably attached is provided. Further, the holder 120a is formed with a locked portion 122b that protrudes toward the adapter 10 to fix the lighting device 100 to the adapter 10. As shown in FIG. Further, the engaged portion 122b is engaged with the fixing portion 35 formed on the outer peripheral surface 10c of the adapter 10, so that the first engaged portion 222a for fixing the lighting fixture 100 to the adapter 10 and the adapter 10 and a second locked portion 222b for temporarily fixing the lighting fixture 100 to the adapter 10 by engaging with the temporary fixing portion 36 formed on the outer peripheral surface of the adapter 222b. The second locked portion 222b also has a third contact surface 222b1 that contacts the temporary fixing portion 36 when the lighting device 100 is temporarily fixed to the adapter 10 .

Also in this modification, the same effects as those of the embodiment can be obtained.

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

For example, the lighting devices and lighting fixtures described in the above embodiments and modified examples of the embodiments are examples, and specific aspects of lighting devices and lighting fixtures are not particularly limited. The luminaires and luminaires may be of any form as long as they are connected to the hook ceiling body using an adapter.

Moreover, in the adapter, the lighting device, and the lighting fixture described in the above embodiments and modified examples of the embodiments, the plurality of locking portions may be one integrated member.

Moreover, in the adapter, the lighting device, and the lighting fixture described in the above embodiments and modifications of the embodiments, the connector portion of the adapter is concave, but it may be a convex connector portion. That is, the configuration may be such that the other end of the third terminal and the other end of the fourth terminal of the connector portion protrude from the first insertion opening and the second insertion opening. 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 supply portion of the socket may be a female connector portion. That is, in the adapter 10, the first power supply terminal and the second power supply terminal of the 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. The first and second power supply terminals of the lighting equipment are recessed terminals extending in the attachment/detachment direction, and the first and second power supply terminals of the adapter are recessed terminals into which the two power supply terminals are inserted. The part may be a convex power supply part inserted into the first power supply terminal and the second power supply terminal.

Also, the specific form of the hooked ceiling body is not particularly limited. As the hook ceiling 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, forms obtained by applying various modifications that a person skilled in the art can conceive of the embodiments and modifications of the embodiments, components in the embodiments and modifications of the embodiments within the scope of the present disclosure The present disclosure also includes a form realized by arbitrarily combining functions.

1 lighting device 3 hook ceiling 10 adapter 10a front surface 10b back surface 10c outer peripheral surface 20 housing 21e second convex portion 31 first locking portion (locking portion)
32 second locking portion (locking portion)
35 Fixed portion 35a First contact surface 36 Temporary fixing portion 36a Second contact surface (inclined surface)
51a, 52a Hooking blade 70 Connector part 100 Lighting fixture 110 Fixture main body 120, 120a Holder 122b Locked part 122b1 Contact surface 123 Connected part 124 First convex part 125 Third convex part 130 Light source 222a First locked part 222b Second locked portion 222b1 Third contact surface V Virtual plane

Claims (11)

An adapter for electrically and mechanically connecting a hook ceiling and a lighting fixture,
a plurality of hooking blades detachably fixed to the hooking ceiling to which power is supplied;
a connector portion provided on the rear surface of the adapter opposite to the surface on which the plurality of hooking blades are provided, and electrically connected to the plurality of hooking blades to supply power to the lighting fixture;
one or more locking portions projecting forward and backward from the outer peripheral surface of the adapter to fix the lighting fixture to the adapter;
Each of the one or more locking portions,
a fixing part that fixes the lighting fixture to the adapter by locking the locked part of the lighting fixture;
a temporary fixing portion that temporarily fixes the lighting fixture to the adapter by engaging with the locked portion;
the temporary fixing portion has a contact surface that contacts 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 perpendicular to a direction in which the adapter is attached to and detached from the hook ceiling. 2. The adapter according to claim 1, wherein each of the one or more locking portions is in a first state in which it protrudes by a first amount from the outer peripheral surface of the adapter when the lighting fixture is fixed to the adapter. Each of the one or more locking portions is in a second state in which it protrudes from the outer peripheral surface of the adapter by a second amount that is less than the first amount when the lighting fixture is temporarily fixed to the adapter. 2. The adapter according to 2. a first contact surface of the fixing portion that contacts the engaged portion when the adapter is cut along a plane that includes the central axis of the adapter and is parallel to a direction in which the adapter is attached to and detached from the hook ceiling; When the at least one locking portion locks the locked portion in the first state at the first angle formed by the attaching/detaching direction of the adapter with respect to the hook ceiling and the outer peripheral surface of the fixing portion, the The locking force in the attachment/detachment direction consists of the second contact surface of the temporary fixing portion, which is the contact surface that contacts the locked portion, and the fixing portion parallel to the attachment/detachment direction of the adapter with respect to the hook ceiling. 4. The apparatus according to claim 3, wherein the at least one locking portion at a second angle formed with the outer peripheral surface is larger than the locking force in the attaching/detaching direction when the one or more locking portions are engaged with the locked portion in the second state. adapter. The connector section
provided detachably with respect to the connector-receiving portion of the lighting fixture,
in the first state, electrically connected to the connector-receiving portion of the lighting fixture;
The adapter according to claim 3 or 4, wherein in the second state, the connector portion of the lighting fixture is electrically disconnected. A housing provided with the plurality of hooking blades, the connector portion, and the one or more locking portions,
The housing has a second convex portion that cancels the first state in which the lighting fixture is fixed to the adapter by rotating the lighting fixture in a predetermined direction so as to protrude by the first amount. An adapter according to any one of claims 3 to 5, wherein the adapter is formed. When the first state in which the lighting device is fixed to the adapter is released, the second convex portion engages with the first convex portion formed on the lighting device so that the lighting device is fixed to the adapter. The adapter according to claim 6, wherein the first state fixed to the adapter is transitioned to the second state of temporary fixing to temporarily fix the lighting fixture to the adapter. an adapter according to any one of claims 1 to 7;
A lighting device, comprising: a lighting fixture electrically connected to the adapter. The lighting fixture is
a light source;
a fixture body that houses the light source;
a holder to which the adapter is detachably attached,
When the lighting fixture is rotated in a predetermined direction, the holder abuts against each of the one or more locking portions, thereby adjusting the amount of protrusion of the one or more locking portions with respect to the outer peripheral surface of the adapter. 9. The lighting device of claim 8, wherein a varying third projection is formed. By rotating the lighting fixture in a predetermined direction, the holder engages with a second protrusion formed on the adapter, thereby temporarily fixing the adapter fixed to the lighting fixture. 10. The lighting device according to claim 9, wherein a first projection for transitioning between states is formed. A lighting fixture electrically connected to a hooked ceiling via an adapter,
a light source;
a fixture body that houses the light source;
a holder fixed to the instrument body and to which the adapter is detachably attached;
The holder is formed with a locked portion for fixing the lighting fixture to the adapter by protruding so as to approach the adapter,
The locked portion is
a first engaged portion that fixes the lighting fixture to the adapter by being engaged with a fixing portion formed on the outer peripheral surface of the adapter;
a second locked portion for temporarily fixing the lighting fixture to the adapter by engaging with a temporary fixing portion formed on the outer peripheral surface of the adapter;
The second locked portion has a third contact surface that contacts the temporary fixing portion when the lighting device is temporarily fixed to the adapter.

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