JP6133764B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture attached to a ceiling portion.

  Patent Document 1 states that “the luminaire main body 1 is attached by being embedded in the ceiling, the main body frame portion 2 is attached to the luminaire main body 1, and the luminaire main body 1 and the main body frame are attached by the locking means 31 to 34 that are springs. The one end of the locking means 31 to 34 is fixed to the main body frame 2 side, and the other end of the locking means 31 to 34 is detachably formed on the luminaire main body 1 side. When the lighting device main body 1 and the main body frame 2 are locked by the locking means 31 to 34, there are provided avoiding means 41 to 48 for avoiding the locking means 31 to 34 coming into contact with the ceiling constituting member. The configuration is disclosed.

Japanese Patent Laid-Open No. 6-309912

  In the configuration described in Patent Document 1, the main body frame 2 that can be detached from the luminaire main body 1 fixed to the ceiling by the locking means 31 to 34 is a light emitting element or a light emitter unit that includes a light emitter. Instead, the locking means (kick springs that are urging means) 31 to 34 are provided in total on the side surface along the two sides of the main body frame portion 2, for a total of four types. Further, when attaching the main body frame 2 to the luminaire main body 1, the locking means 31 to 34 are sequentially inserted into the avoiding means 41 to 48, which are elongated slits, one by one. Is required four times, and it takes time and effort.

In view of the above problems, an object of the lighting fixture of the present invention is to obtain a lighting fixture that is easy to attach a light emitter unit.

  In order to achieve the above object, for example, the configuration described in the claims is adopted.

As an example thereof, an instrument body attached to the ceiling, a light emitter substrate that is detachably provided at a lower portion of the instrument body, and includes a light emitter element; a power supply device connected to the light emitter substrate; A light emitting unit that covers a lower portion of the light emitting substrate and transmits light emitted from the light emitting element, and has an upper surface facing the light transmitting cover in the light emitting unit. Comprises a pair of urging members disposed across the position of the center of gravity of the luminous body unit, and the pair of urging members are respectively a coil portion wound in a cylindrical shape and a pair extending from both ends of the coil portion. The pair of biasing members are arranged so that the central axes of the coil portions are parallel to each other, and the pair of biasing members are directed downward to the instrument body attached to the ceiling. Spring provided It was arranged to be detachable, respectively with the only tool.

ADVANTAGE OF THE INVENTION According to this invention, the lighting fixture with easy attachment work of a light-emitting body unit can be obtained.

It is the perspective view which looked at the lighting fixture in 1st embodiment of this invention from diagonally downward. It is the sectional view on the AA line of FIG. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is the whole disassembled perspective view which looked at the lighting fixture in embodiment of this invention from diagonally upward. (A) is a C arrow line view of FIG. 2, (b) is the DD sectional view taken on the line of Fig.5 (a). (A) is the perspective view which looked at the lighting fixture in embodiment of this invention from diagonally downward, and shows the state which suspended the light-emitting body unit with the kick spring, (b) is the structure around the kick spring of FIG. 6 (a) FIG. FIG. 7 is a cross-sectional view taken along line B′-B ′ of FIG. 6A, showing a state where the light emitter unit is suspended by a kick spring. FIG. 7 is a cross-sectional view taken along line B′-B ′ of FIG. 6A, showing a state where the light emitter unit is swung back in the short direction while being suspended by a kick spring. It is a schematic cross section which shows the attachment or detachment | desorption operation | movement of the light-emitting unit of the lighting fixture in 1st embodiment of this invention in steps. It is AA sectional drawing explaining attachment or removal operation | movement of the light-emitting unit of the lighting fixture in 1st embodiment of this invention. It is the DD sectional view similar to FIG. 3 of the lighting fixture in 2nd embodiment of this invention. It is an AA line sectional view explaining attachment or removal operation of a luminous body unit of a lighting fixture in a third embodiment of the present invention. It is the schematic top view which looked at the lighting fixture in 4th embodiment of this invention from the ceiling side. It is an AA line sectional view explaining attachment or detachment operation of a luminous body unit in a lighting fixture of composition different from the present invention. It is AA sectional view explaining the attachment or removal operation | movement of a light-emitting body unit in the lighting fixture of a structure further different from this invention.

  Hereinafter, an example for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail with reference to the drawings as appropriate. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.

  First, the structure of the lighting fixture which concerns on 1st embodiment is demonstrated using FIGS. 1-4. FIG. 1 is a perspective view of the luminaire according to the first embodiment of the present invention viewed obliquely from below. 2 is a cross-sectional view taken along line AA in FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is an overall exploded perspective view of the luminaire according to the embodiment of the present invention as viewed obliquely from above, that is, from the ceiling side.

Here, when the lighting fixture 1 is attached to the ceiling 2, the ceiling side is an upward direction and the floor surface side is a downward direction. That is, when the lighting fixture 1 is attached to the ceiling 2, it is attached so that the fixture main body 3 and the light emitter unit 4 are arranged in the order from the upper side to the lower side. Moreover, since the external shape of the lighting fixture 1 is a long substantially rectangular parallelepiped, the lighting fixture 1 has six surfaces. Thereafter, with the lighting fixture 1 attached to the ceiling 2 as a reference, the ceiling-side surface of the lighting fixture 1 is the upper surface, the floor-side surface of the lighting fixture 1 is the lower surface, and the lighting is perpendicular to the ceiling 2 and is long. The long side of the fixture 1 will be referred to as the short side surface of the lighting fixture 1 that is perpendicular to the ceiling 2 other than the side surface in the longitudinal direction, the top surface, the bottom surface, and the longitudinal side surface. Further, hereinafter, a direction parallel to the ceiling 2 and parallel to the longitudinal side surface is referred to as a longitudinal direction, and a direction parallel to the ceiling 2 and parallel to the lateral direction side surface is referred to as a lateral direction.
As shown in FIG. 1, a lighting fixture 1 according to this embodiment includes a fixture main body 3 fixed to the lower surface of a ceiling 2, and a light emitting diode (light emitting) provided as a light source, for example, provided on the lower side of the fixture main body 3. A diode (LED) is included, and the lower surface is composed of a detachable light emitting unit 4 constituted by a translucent cover 5 that transmits or diffuses light.

  The instrument body 3 is a long, substantially rectangular parallelepiped, and a pair of spring receivers 6 are disposed downward along a longitudinal center line, and are fixed to the instrument body 3 by screws 30. A connector 8a is provided at one end of a cable 7a for supplying power to the light emitter unit 4, and the connector 8a extends downward from the ceiling 2 through the instrument body 3 via the cable 7a. The instrument main body 3 is fixed to the ceiling 2 from below with, for example, screws or hooks (not shown).

  As an example of the shape of the instrument body 3, as shown in FIGS. 3 to 4, a portion facing the light emitter unit 4 is recessed in the cross section in the short direction, and a part of the light emitter unit 4 is part of the instrument body 3. If the shape is fitted to the ceiling, the downward convex amount of the luminaire 1 from the ceiling 2 is small, so that the thickness can be reduced.

  The light emitter unit 4 includes, for example, a light emitter base 9 having a substantially U-shaped cross section by bending both sides of a longitudinal side surface of an iron plate, a light emitter substrate 10 provided along a lower surface of the light emitter base 9, and a light emitter. A light emitter element 11, for example, an LED, is provided on the lower surface side of the light emitter substrate 10 electrically connected to the substrate 10.

  A power supply device 12 that is electrically connected to the light emitter substrate 10 is provided on the upper surface side of the light emitter base 9, a connector 8 b is provided at one end of a cable 7 b that extends from the power supply device 12, and an instrument is provided from the ceiling 2. A pair of connectors 8a provided at one end of a cable 7a extending downward through the main body 3 can be connected to each other. When the connectors 8a and 8b are connected, the power supply device 12 is energized to connect the light emitter substrate 10 The light emitter element 11 can emit light through the light source.

The lower surface of the light emitter unit 4 is covered with a translucent cover 5 that transmits light from the light emitter element 11.
In the vicinity of both side surfaces along the longitudinal direction of the translucent cover 5, there are provided engaging portions 13 whose front ends are bent inward from each other, and at the end of the substantially U-shaped cross section of the light emitter base 9 from the outside. The light-transmitting cover 5 is held against the light emitter base 9 by fitting.

  The translucent cover 5 may be made of a transparent material or a translucent material as long as it transmits light from the light emitting element 11. The translucent cover 5 may be diffusive or non-diffusible. If the translucent cover 5 is diffusible, the uniformity is high, and if it is non-diffusible, the efficiency is improved.

  In FIG. 3, the light 14 emitted from the light emitter element 11 passes through the translucent cover 5 and is mainly emitted in the floor surface direction and partly in the wall surface direction.

  On the upper surface of the light emitter base 9, a spring holder 15 is fixed by, for example, a screw 30 at a position corresponding to the spring receiver 6 provided downward on the instrument body 3.

  The spring holder 15 passes through the inside of the coil portion 17 of the torsion spring 16 wound in a cylindrical shape and supports the torsion spring 16 on the light emitter base 9. Both ends of the coil portion 17 of the torsion spring 16 are a pair of spring arm portions 18 extended in a substantially symmetrical shape. The torsion spring 16 may be hereinafter referred to as a kick spring 16 in the description of the present invention.

  The spring holder 15 does not have to fasten and fix the coil portion 17 of the kick spring 16 to the light emitter base 9, and may be in a state of rattling. The spring holder 15 is provided with a cut and bent portion 28 for restricting the movement of the kick spring 16 in the short direction.

  The pair of spring arm portions 18 of the kick spring 16 are fitted to the corresponding spring receivers 6 provided on the instrument body 3, and an upward biasing force is applied to the spring receiver 6, whereby the kick spring 16 A force is generated to raise the light emitter base 9 upward via the spring holder 15, and the light emitter unit 4 is pressed against the instrument body 3 from below and set.

  Details of the action of the urging force by the kick spring 16 will be described later.

  Here, the arrangement of the kick spring 16, the spring holder 15 that penetrates and holds the coil portion 17 of the kick spring 16, and the spring receiver 6 that acts on the spring arm portion 18 of the kick spring 16 will be described. As described above, the spring holder 15 provided on the light emitter base 9 and the spring holder 6 provided on the instrument body 3 are provided at positions corresponding to each other, and the coil portion is supported by the spring holder 15. The spring arm portion 18 of the kick spring 16 is engaged with the spring receiving groove 19, and the spring force, that is, the urging force generated by the kick spring 16 acts on the spring receiving groove 19. An upward biasing force is applied to the light emitter unit 4 via the kick spring 16, and the biasing force exceeds the weight of the light emitter unit 4 so that the light emitter unit 4 acts in the direction close to the instrument body 3, that is, upward. Thus, the light emitter unit 4 is held in contact with the instrument body 3.

  A part of the spring holder 15 is provided with a cut-and-raised portion 20 that is a so-called stopper for restricting the coil portion of the kick spring 16 from moving in the short direction. It is held on a substantially center line in the longitudinal direction.

  In this embodiment, two types of kick springs 16 are provided on the center line along the longitudinal direction of the light emitter unit 4, and are arranged with the center of gravity G of the light emitter unit 4 interposed therebetween. The center of gravity G of the light emitter unit 4 is approximately in the vicinity of the center position in the longitudinal direction. However, when the power supply device 12 is displaced from the center position of the light emitter unit 4, the center of gravity position G is the center in the longitudinal direction. The position is shifted to the power supply device 12 side from the position.

  Further, in the present embodiment, as shown in FIG. 3, since the cross-sectional shape in the short side direction is substantially symmetrical, the position of the center of gravity of the light emitter unit 4 is on the center line along the longitudinal direction, and the kick spring 16 The upward urging force by the urging force urges the center of gravity of the light emitter unit 4 upward.

  In the present embodiment, since the pair of kick springs 16 are disposed with the gravity center position G of the light emitter unit 4 interposed therebetween, the spring force by the kick spring 16 stably biases the light emitter unit 4 upward, It can be held in contact with the main body 3.

  As a construction procedure when attaching the light emitter unit 4 to the instrument body 3, the instrument body 3 is attached to the ceiling, and the connector 8a is suspended from the instrument body 3 via the cable 7a.

  Thereafter, the light emitting unit 4 is brought close to the instrument body 3 and the kick spring 16 is elastically deformed from the state shown by the broken line in FIG. It hangs on the provided spring receiver 6. The light emitter unit 4 is suspended from the instrument body 3 via the two kick springs 16 and the spring holder 15 with the two kick springs 16 hung on the spring receiver 6.

  As described above, the two kick springs 16 are arranged on the center line along the longitudinal direction of the light emitter unit 4 with the center of gravity G of the light emitter unit 4 interposed therebetween. It is suspended at a position substantially parallel to the instrument body 3.

  Thereafter, the connector 8a hung from the fixture body 3 and the connector 8b connected to the power supply device 12 provided in the light emitter unit 4 via the cable 7b are connected to each other.

  After that, if the luminous body unit 4 is raised so as to be close to the instrument body 3, the urging force by the kick spring 16 is made larger than the weight of the luminous body unit 4. The light emitter unit 4 is brought into contact with the instrument main body 3 to have a form as shown in FIGS. 1 to 3 (this may be described as being set), and in this state Used as a lighting fixture 1.

Since it is such a construction procedure, the structure provided with the following effects is desirable as the lighting fixture 1 which is easy to construct.
1. When the kick spring 16 is mounted on the spring receiver 6, the spring receiver 6 can be visually confirmed, and the kick spring 16 can be easily mounted on a predetermined position of the spring receiver 6, for example, the spring receiving groove 19.
2. When the connector 8 is connected, the light emitter unit 4 can be held in a suspended state via the kick spring 16, and a special hanging member such as a string or a chain is not necessary.
3. The work space for connecting the connector 8 is large.
4). After connecting the connector 8 and simply lifting the light emitter unit 4 from below, the light emitter unit 4 is pulled up and set toward the instrument body 3 by the urging force of the kick spring 16, and a special tool is attached. The light emitter unit 4 can be attached without using it.
5. Since the kick springs 16 are sequentially hung on the spring holder 6 one by one, the light emitter unit 4 is stable and easy to support even when only one kick spring 16 is hung.

  Since the lighting fixture 1 by this invention is equipped with said effect, the detailed structure is demonstrated below.

Next, detailed configurations of the kick spring 16 and the spring support 6 will be described with reference to FIGS.
FIG. 5A is a C arrow view of FIG. 2, and FIG. 5B is a cross-sectional view taken along the line DD of FIG. 5A. FIGS. 5A and 5B show a state in which the light emitter unit 4 is set on the instrument main body 3 as shown in FIGS. 1 to 3.

  FIG. 6A is a perspective view of the lighting apparatus according to the embodiment of the present invention as viewed obliquely from below, and shows a state in which the light emitter unit 4 is suspended by the kick spring 16, and FIG. It is a perspective view which shows the structure of the kick spring periphery in detail.

  As described above, the spring holder 15 is inserted inside the cylindrical coil portion 17 of the kick spring 16 that is a torsion spring, and the spring holder 15 is fixed to the upper surface of the light emitter base 9 to thereby The spring 16 is attached to the light emitter unit 4. The central axis of the coil portion 17 of the kick spring 16 is supported facing the short direction.

  Both ends of the kick spring 16 have a pair of spring arm portions 18 extending tangentially from the coil portion 17 in a direction away from the coil portion 17. Each spring arm portion 18 has a first bent portion 21 that is bent in the direction of moving away from the central axis of the coil portion 17 as the distance from the coil portion 17 is approximately in the vicinity of the center of the spring arm portion 18 and the first bent portion. 21 has a second bent portion 22 bent in the opposite direction to the first bent portion 21 in the vicinity of the tip of the spring arm portion 18 on the opposite side to the coil portion 17. The distal end of the spring arm portion 18 has a stopper portion 23 having a width s that is bent toward the coil portion 17 in parallel to the center line of the coil portion 17. The stopper portion 23 may further bend the tip by 180 ° to round the tip, thereby preventing the burr on the cut surface of the material from being exposed to the end.

  The operation of the first bent portion 21 and the second bent portion 22 will be described later.

  As shown in FIG. 5A, the pair of spring arm portions 18 extended from both ends of the coil portion 17 are arranged apart from each other by e, and each spring arm portion 18 is arranged around the central axis of the coil portion 17. Since they rotate, the surfaces on which the pair of spring arm portions 18 rotate are along the longitudinal direction and are in a plane separated from each other by e along the vertical direction.

  In other words, the pair of spring arm portions 18 have a rotationally symmetric shape such that when viewed from above as shown in FIG.

  Moreover, when it sees from a transversal direction like FIG.5 (b), it has a symmetrical shape.

  In FIG. 5A, the spring receiver 6 includes a pair of spring receiving grooves 19 corresponding to the pair of spring arm portions 18 of the kick spring 16. The pair of spring receiving grooves 19 correspond to the pair of spring arm portions 18, are located at a distance e from each other, and when viewed from above as shown in FIG. They are provided at rotationally symmetrical positions so as to have a shape.

  As shown in FIG. 5, when the light emitter unit 4 is set, the spring receiving groove 19 is a section of the spring arm portion 18 between the coil portion 17 and the first bent portion 21. The urging force from the kick spring 16 is received.

  When the kick spring 16 is removed and no torque is applied, the spring arm 18 has the shape shown by the broken line in FIG. 5B, and when the light emitter unit 4 is set on the instrument body 3, it is elastically deformed. Torque in the direction indicated by the arrow.

  If the magnitude of the urging force at this time is Fa, the direction of the force Fa is perpendicular to the direction in which the spring arm 18 contacts the spring receiving groove 19 and is inclined by the angle θa with respect to the vertical direction. . Accordingly, the upward vertical force component on the light emitter unit 4 is Fa × cos (θa), and there are two spring arm portions 18 for each kick spring 16, so that each kick spring 16 emits light. The force for pulling up the body unit 4 is 2 × Fa × cos (θa).

  In the embodiment in which two kick springs 16 are provided as in this embodiment, the total force for pulling up the light emitter unit 4 is 4 × Fa × cos (θa).

  Here, if the mass of the illuminant unit 4 is m and the acceleration of gravity is g, the total of the forces by the pair of kick springs 16 is required to set the illuminant unit 4 against the instrument body 3 against its own weight. It is preferable that 4 × Fa × cos (θa) is greater than the force mg due to its own weight (4 × Fa × cos (θa)> mg).

  Here, since the distance between the pair of spring arm portions 18 and the distance between the spring receiving grooves 19 are set to the same dimension e, even when the light emitter unit 4 is moved downward and the kick spring 16 is twisted and displaced, The central axis of the coil portion 17 of the spring 16 always remains in the short direction. Therefore, the relationship between the central axis of the coil portion 17 and the spring holder 15 does not change, and the kick spring 16 is always stably supported. That is, even when the luminous body unit 4 is moved up and down during construction, the kick spring 16 does not rotate or swing when viewed from above as shown in FIG.

  Therefore, since the inner side of the coil portion 17 of the kick spring 16 and the spring holder 15 penetrating the inner side of the coil portion 17 are not rubbed or crushed, the kick spring 16 is stably held, Since the coil portion 17 of the kick spring 16 is hardly damaged, the reliability is high.

  Note that the dimension e does not need to be exactly the same in the kick spring 16 and the spring support 6, and the kick spring 16 is elastically deformed even if there is a difference in error in processing or mounting of parts. It only needs to be installed stably.

  Further, since the torsion spring has a torsion angle called a so-called lead angle for winding the coil portion 17, the pair of spring arm portions 18 are not parallel but have a shape opened toward the tip. Even if it is such a shape and the distance between the spring arm portions 18 is different from the distance e between the spring receiving grooves 19, the effect of the present embodiment can be obtained as long as it is within the range of elastic deformation of the spring arm portion 18. Needless to say, it can be obtained equally.

  As described above, when the lighting fixture 1 is constructed, the light fixture unit 4 is hung on the spring holder 6 provided on the fixture body 3 attached to the ceiling 2 with the kick spring 16 suspended, so that the fixture body on the ceiling side. 3 is connected to a connector 8a provided on the cable 7b extended from the power supply device 12 provided on the light emitter unit 4.

  Such construction work is performed from below toward the ceiling 2. Here, as apparent from FIG. 6A, the kick spring 16 is provided on the upper surface of the light emitter unit 4 and the spring support 6 is provided downward from the instrument main body 3, so that the instrument main body 3 and the light emitter are provided. Since the spring holder 6 can be seen from below through the gap of the unit 4, there is an effect that the kick spring 16 can be easily mounted on the spring holder 6 and can be easily constructed.

  When the kick spring 16 is laid on the spring holder 6, as shown by arrows in FIG. 6B, the spring arm portions 18 of the pair of kick springs 16 are elastically deformed to provide holes provided in the spring holder 6. 24, the spring arm portion 18 is hung on the corresponding spring receiving groove 19, and the stopper portion 23 of the kick spring 16 is hooked on the cut-and-raised portion 20 which is bent upward, so that the spring receiving groove is surely provided. The kick spring 16 can be held by 19.

  Here, the cut-and-raised portion 20 adjacent to the spring receiving groove 19 and the side opposite to the spring-receiving groove 19 with respect to the cut-and-raised portion 20 are inclined toward the spring receiving groove 19 so that the interval becomes narrower. The inclined portion 25 is used. With such a shape, when the kick spring 16 is attached, the spring arm portion 18 is guided and called into the spring receiving groove 19 along the cut-and-raised portion 20 or the inclined portion 25. Can be securely attached to the spring receiving groove 19, the kick spring 16 can be easily attached, and a lighting fixture that is easy to construct can be obtained.

  Next, in the same manner as described with reference to FIG. 6, the state in which the luminous body unit 4 is suspended from the instrument body 3 via the kick spring 16 and the connection work of the connector 8 will be described with reference to FIGS. 7 and 8. To do.

  FIG. 7 is a cross-sectional view taken along line B′-B ′ in FIG. 6A, and shows a state where the light emitter unit 4 is suspended via the kick spring 16. The B′-B ′ line cross-sectional view is a cross-sectional view at the same position as the BB line cross-sectional view in FIG. 2.

  FIG. 8 is a cross-sectional view taken along the line B′-B ′ of FIG. 6A as in FIG. 7, and shows a state where the light emitter unit 4 is swung to the rear side in the short direction while being suspended by the kick spring 16. Show.

  In FIG. 7, the light emitter unit 4 is suspended from the instrument body 3 by two kick springs 16, and shows a state where it is lowered by u <b> 3 from the set state shown in FIG. 3. As described above, the kick spring 16 is disposed on the longitudinal center line of the light emitter unit 4, and in particular, within the range of the width e of the spring receiving groove 19 on which the kick spring 16 is laid. By providing the center of gravity, the light emitter unit 4 is stably supported while maintaining the horizontal state even when the light emitter unit 4 is suspended.

  At this time, the gap p <b> 1 between the instrument body 3 and the light emitter unit 4 is equal to or slightly smaller than the length of the spring arm portion 18 of the kick spring 16.

  Here, when connecting the connectors 8 (8a, 8b), it goes without saying that it is easier to work if there is enough space on the near side.

  In the luminaire 1 of the present embodiment, when the light emitter unit 4 is pushed from the near side in the short direction toward the far side, it is hung on the spring support 6 provided on the center line in the longitudinal direction of the fixture body 3. A form as shown in FIG. 8 is formed by swinging to the back side around the stopper portion 23 of the kick spring 16.

  That is, the stopper portion 23 of the kick spring 16 can be tilted upward from the spring receiver 6 around the position of the spring receiving groove 19 in a state where the kick spring 16 is engaged with the spring receiving groove 19. Here, if the relationship between the vertical thickness h of the spring holder 6 and the length s of the stopper portion 23 of the kick spring 16 is such that h> s, the kick spring 16 and the light emitter unit 4 are combined. Even if it is tilted, the light emitting unit 4 can be easily tilted without the stopper portion 23 coming into contact with the instrument body 3 and being stretched or twisted.

That is, the light emitter unit 4 is configured to be inclined around the stopper portion 23 at the tip of the kick spring 16 adjacent to the instrument body 3.
As shown in FIG. 8, when the light emitter unit 4 is inclined to the back side, the gap p2 between the fixture body 3 and the light emitter unit 4 is larger than the gap p1 in the suspended state shown in FIG. p2> p1. Furthermore, since the light emitter unit 4 moves to the back side by p3, the connector 8 and the cable 7 are easy to see and work easily.

  According to the present embodiment, when the connector 8 is connected, the light emitting unit 4 can be inclined to the rear side in the short side direction and the gap on the near side can be enlarged, thereby providing a lighting device that is easy to see and easy to construct. There is an effect that can be done.

  Next, the shape of the kick spring 16 when the light emitter unit 4 is moved up and down with respect to the instrument body 3 using FIG. Will be described. FIG. 9A is a longitudinal sectional view showing a state in which the light emitter unit 4 is set in the instrument body 3 as in FIG. FIGS. 9B, 9C and 9D are longitudinal sectional views showing positions where the light emitting unit 4 is lowered by distances u1, u2 and u3, respectively. FIG. 9E is a longitudinal sectional view showing an operation when the kick spring 16 is elastically deformed and attached to the spring receiver 6.

  In FIG. 9A, as described with reference to FIG. 5B, the force Fa is applied from the vertical direction to the angle θa from the spring arm portion 18 of the kick spring 16 to the spring support 6; The light emitter unit 4 having a mass m is urged toward the upper instrument body 3. Moreover, in this state, the space | interval between the fixture main body 3 and the light-emitting body base 9 is H, and in order to make the lighting fixture 1 thin, the structure which can reduce this H dimension is desirable.

  FIG. 9B shows a position where the light emitting unit 4 is set and lowered by a distance u1, and the spring arm 18 is between the coil portion 17 and the first bent portion 21 and is a spring holder. 6, the force Fb is applied in the direction of the angle θb from the vertical direction, and the light emitter unit 4 with mass m is urged toward the upper instrument body 3. Here, similarly to the case described with reference to FIG. 5B, if the relationship of (4 × Fb × cos (θb)> mg) is established, the upward biasing force by the kick spring 16 is greater than the weight of the light emitter unit 4. Since it becomes large, the light emitter unit 4 is urged upward.

  Here, when the shape which does not provide the 1st bending part 21 and the 2nd bending part 22 in the spring arm part 18 is shown with the broken line K, since the front-end | tip of the kick spring 16 is located above the upper surface of the instrument main body 3, In order to swing the spring arm portion 18 of the kick spring 16, it is necessary to make a hole in the ceiling 2 or enlarge the H dimension to increase the thickness of the lighting fixture 1.

  That is, by providing the first bent portion 21 and the second bent portion 22 on the spring arm portion 18, there is an effect that the H dimension can be reduced and the lighting fixture 1 can be thinned. Here, since the first bent portion 21 and the second bent portion 22 are bent in directions opposite to each other, it is the first bent portion 21 that is effective in reducing the H dimension. It is effective to provide the one bent portion 21 in the vicinity of the center of the spring arm portion 18.

  FIG. 9C shows a position where the luminous body unit 4 is further lowered to the distance u2, where the first bent portion 21 of the spring arm portion 18 is hooked on the spring support 6 and the force Fc is applied. In addition to the direction of the angle θc from the vertical direction, the light emitter unit 4 with mass m is urged toward the upper instrument body 3. Compared with FIG. 9B, the angle (θc) <(θb) is satisfied by the first bent portion 21 and cos (θb) <cos (θc). Therefore, the upward vertical component of the force Fc is further increased The force for pulling up the luminous body unit 4 becomes large.

  FIG. 9D shows a state where the light emitter unit 4 is further lowered to the distance u3 and the light emitter unit 4 is suspended in the same manner as in FIG. Here, the stopper portion 23 at the tip of the spring arm portion 18 is in a state of being hooked on the cut-and-raised portion 20 of the spring receiver 6, and the second bent portion 22 provided on the spring arm portion 18 is the spring receiver. It is located below 6. In other words, the spring support 6 is in a state of supporting the vicinity of the tip of the spring arm 18 further than the second bent portion 22.

  The spring arm portion 18 is bent in the opposite direction to the first bent portion 21 in the second bent portion 22, and in the suspended state shown in FIG. The direction of Fd approaches horizontal, and the vertical direction component Fd × cos (θd) becomes small.

  Here, the magnitude relationship between the total upward biasing force of the pair of kick springs 16 and the weight of the light emitter unit 4 is expressed as Fd and θd such that (4 × Fd × cos (θd) <mg). 9 (d) to 6 and 7, the light emitter unit 4 is not lifted by the urging force of the kick spring 16, and the suspended state of the light emitter unit 4 is maintained as it is. Can be maintained.

  That is, it is possible to maintain the state in which the light emitter unit 4 is suspended by the kick spring 16, and a special hanging member such as a string or a chain is unnecessary, and an easy-to-construct lighting device can be provided. There is an effect.

  FIG. 9E shows that the pair of spring arms 18 of the kick spring 16 are elastically deformed by bringing them close to each other with fingers in the direction of the white arrow, and the stopper 23 at the tip of the kick spring 16 is moved against the spring holder 6. The operation when attaching from the bottom is indicated by an arrow.

  Here, when the kick spring 16 is elastically deformed by a finger, the kick spring 16 can be stably supported while being elastically deformed by placing the finger on the first bent portion 21. There is an effect that it is easy to attach the spring receiver 6 from the lower side, and it is possible to provide a lighting device that is easy to construct.

  When the kick spring 16 is removed from the spring holder 6, if the kick spring 16 is elastically deformed and moved downward from the spring holder 6 in the same manner as when it is attached, the light emitter unit 4 can be easily attached to the instrument. It can be removed from the main body 3.

  That is, when the light emitter unit 4 is attached to the instrument body 3, first, the kick spring 16 is elastically deformed with fingers as shown in FIG. A hole 24 provided in the spring holder 6 is passed through from the side and attached to the spring receiving groove 19, and the luminous body unit 4 is suspended from the instrument body 3 via the kick spring 16 as shown in FIG. 9 (d). State. At this time, in order to maintain the suspended state, a special hanging means such as a string or a chain is unnecessary.

  After connecting the connector 8 in this state, if the light emitter unit 4 is lifted by applying a force from below, the state shown in FIG. 9 (a) is reached through the states shown in FIGS. 9 (c) and 9 (b). The light emitter unit 4 and the instrument body 3 are set.

  When the light emitter unit 4 is removed, the reverse procedure can be performed, and an easy-to-install lighting device that can attach and remove the light emitter unit 4 without using a special tool can be provided. .

  Next, the state in the middle of construction is demonstrated using FIG.

  FIG. 10 is a longitudinal sectional view taken along the line AA for explaining the operation of attaching or removing the light emitter unit 4.

  When attaching the illuminant unit 4, it is difficult to hang the two kick springs 16 on the spring holder 6 at the same time. FIG. 10 shows a state in which only one kick spring 16 is hung on the spring support 6 during the construction.

  In the kick spring 16 in this embodiment, as described with reference to FIG. 9D, the urging force Fd from the kick spring 16 to the spring support 6 is generated symmetrically from the pair of spring arm portions 18 in the longitudinal direction. So these forces are balanced in the longitudinal direction. Therefore, as shown in FIG. 10, the kick spring 16 does not generate an urging force in the longitudinal direction with respect to the light emitting unit 4 in a state where only one kick spring 16 on the right side of the drawing is mounted on the spring holder 6. In this state, the light emitter unit 4 is stably positioned directly below the spring support 6 via the already-kicked one of the kick springs 16, so that when the other kick spring 16 is mounted, There is an effect that the position of the light emitter unit 4 is stable and easy to hang.

  Furthermore, since the first bent portion 21 is provided in the spring arm portion 18 of the kick spring 16, a gap 26 is generated between the first bent portion 21 and the light emitter base 9. Since the kick spring 16 is easily elastically deformed to the state shown in FIG. 9E by inserting a finger into the gap 26, the light emitter unit 4 can be easily attached.

  That is, according to the present embodiment, a special tool that can easily support the light emitter unit 4 and easily mount the second kick spring 16 is used even when only one kick spring 16 is mounted in the middle of construction. Thus, it is possible to provide a lighting fixture that can be easily installed and removed, and can be easily installed and removed.

  A second embodiment of the present invention will be described with reference to FIG. FIG. 11 is a cross-sectional view of the lighting device in the second embodiment of the present invention along the DD line in the short direction similar to FIG.

  The second embodiment is different from the first embodiment in that the width W2 of the instrument body 3 in the short direction is substantially equal to the width W1 of the light emitter unit 4. Since the kick spring 16 and the spring support 6 for biasing the instrument body 3 and the light emitter unit 4 are located on the upper surface of the light emitter unit 4 and the longitudinal centerline, The width W2 can be reduced to a dimension substantially equal to the width W1 of the light emitter unit 4.

  With such a dimensional relationship, the light emitter units 4 can be arranged close to each other in the short direction, and the light emitter units 4 can be attached and detached without using any special tools. It is possible to provide a lighting device that is easy to construct.

Next, a third embodiment of the present invention will be described with reference to FIG.
FIG. 12 is a cross-sectional view taken along line AA in the longitudinal direction for explaining the attaching or removing operation of the light emitter unit 4 in the lighting apparatus according to the third embodiment of the present invention.

  12A shows a state in which the light emitter unit 4 is set on the instrument body 3 as in FIG. 2, and FIG. 12B shows a state in which only one kick spring 16 is hung on the spring support 6 and the light emitter unit 4 is placed. Is suspended from the instrument body 3.

  The third embodiment is different from the first embodiment in that a kick spring 16, a spring holder 15, and a spring receiver 6 for biasing the instrument body 3 and the light emitter unit 4 are placed on the longitudinal center line. That is, there are three sets. Of these, two sets are arranged near both ends in the longitudinal direction, and one set of kick springs 16c is arranged near the center in the longitudinal direction.

  As shown in FIG. 12 (a), even if the configuration has three kick springs 16, if the upward biasing force generated by the kick spring 16 is greater than the weight of the light emitter unit 4, the light emitter unit 4. Since 4 is stably set with respect to the fixture body 3, it is suitable for the so-called long lighting fixture 1 that is particularly long in the longitudinal direction.

  In the third embodiment, when the power supply device 12 is arranged along the longitudinal direction of the light emitter unit 4, the center of gravity of the light emitter unit 4 is closer to the power supply device 12 than the center position in the longitudinal direction. It becomes the position. Therefore, the position of the kick spring 16c disposed in the vicinity of the center in the longitudinal direction is not the center position in the longitudinal direction, but the dimension from the end face in the longitudinal direction of the light emitting unit 4 is L1, the side where the power supply device 12 is located, and the opposite side It is preferable that L2 is set at a position where L1 <L2.

  With this arrangement, the central kick spring 16c is arranged in the vicinity of the center of gravity of the light emitter unit 4, so that only the central kick spring 16c is attached to the corresponding spring holder 6 as shown in FIG. The light emitter unit 4 is supported substantially horizontally in a state where it is only mounted. The connector 8 may be connected in this state.

  From such a state, it is easy to sequentially hang the kick springs 16 provided in the vicinity of both ends in the longitudinal direction of the luminous body unit 4 on the corresponding spring receivers 6, and the three kick springs 16 correspond to each other. If the spring holder 6 is hung, the light emitter unit 4 is suspended from the instrument body 3 by the three kick springs 16. If the light emitter unit 4 is lifted after the connector 8 is connected, the light emitter unit 4 is set by the urging force of the kick spring 16 as shown in FIG.

  As described above, in the third embodiment, the light emitting unit 4 is suspended and supported using the three kick springs 16 arranged along the longitudinal direction, and the kick spring 16c provided in the center is provided. Is arranged in the vicinity of the center of gravity of the light emitter unit 4, so that the light emitter unit 4 is supported substantially horizontally even when only the central kick spring 16c is mounted. It is easy to hang the kick spring 16, and it is possible to provide a lighting device that is easy to construct and that allows the light emitter unit 4 to be attached and detached without using a special tool.

  Next, a fourth embodiment of the present invention will be described using FIG. FIG. 13: is the schematic top view which looked at the lighting fixture 1 in 4th embodiment of this invention from the ceiling 2 side.

  The fourth embodiment is different from the first embodiment in that the instrument main body 3 and the light emitter unit 4 are not linear in the longitudinal direction, but are entirely or partially configured by curves. The cross section along the line AA is the same as that shown in FIG.

  In FIG. 13, the form curved in the substantially S shape in the longitudinal direction is shown as an example of the fourth embodiment. In the fourth embodiment, the pair of kick springs 16 are disposed near both ends in the longitudinal direction of the light emitter unit 4 with the center of gravity G interposed therebetween, and the center lines of the cylindrical coil portions 17 of the pair of kick springs 16 are mutually connected. They are arranged in parallel. Furthermore, it is desirable that the gravity center position G is provided within a range e which is the interval between the spring arm portions 18 of the kick spring 16 because the light emitter unit 4 can be stably supported.

  Since the pair of kick springs 16 are arranged in this way, the illuminator unit 4 can be urged and set with respect to the instrument body 3 by the urging force of the kick springs 16, and as shown in FIG. It is possible to suspend the light emitter unit 4 horizontally and to swing the light emitter unit 4 as shown in FIG. Therefore, it is easy to connect the connector 8 and the kick spring 16 as in the first embodiment, and it is possible to attach and remove the light emitter unit 4 without using a special tool. A simple lighting fixture can be provided.

  As the fourth embodiment, FIG. 13 shows an example in which the instrument main body 3 and the light emitter unit 4 are curved in a substantially S shape. However, the embodiment is not limited to such a shape. Needless to say, the shape may be a square shape or a shape having a plurality of bent portions in the longitudinal direction, and the same effect can be obtained.

  Moreover, the structure which provided the kick spring 16c further in the approximate center part of the light-emitting body unit 4 may be sufficient similarly to having shown in 3rd embodiment.

  Next, a configuration different from the present invention will be described with reference to FIG.

  FIG. 14 is a cross-sectional view taken along line AA in the longitudinal direction for explaining the operation of attaching or removing the light emitter unit 4 in the lighting fixture 1 having a configuration different from that of the present invention. A state where only one side of the kick spring 16 is hung on the spring support 6 is shown.

  The difference from the present invention is that a spring holder 15 for holding the kick spring 16 is attached to the instrument main body 3, and the spring receiver 6 is provided on the light emitter base 9 of the light emitter unit 4.

  Since it arrange | positions in this way, the spring holder 6 becomes the shade of the light-emitting body unit 4 at the time of construction, and cannot be visually observed from the downward direction. Therefore, the tip of the spring arm portion 18 of the kick spring 16 is inserted into the spring receiving groove 19 provided in the spring receiving member 6 and the operation of suspending is performed in a state in which it cannot be visually checked, so that there is a possibility that a problem in workability may occur.

  On the other hand, in the embodiment of the present invention, the spring holder 6 can be viewed from below, so that the workability is good.

Next, a configuration further different from the present invention will be described with reference to FIG.
FIG. 15 is a cross-sectional view taken along line AA in the longitudinal direction for explaining the attaching or detaching operation of the light emitter unit 4 in the lighting fixture 1 having a configuration different from that of the present invention. A state in which only one side of the kick spring 16 is hung on the spring support 6 is shown.

  The difference from the present invention is that the pair of spring arm portions 18 of the kick spring 16 are not provided symmetrically, but the spring arm portion 18 is provided only on one side of the kick spring 16 and the other spring other end portion. Reference numeral 27 is in contact with the light emitter base 9 and has a configuration in which only one spring arm 18 is mounted on the corresponding spring receiver 6.

  In this configuration, as shown in FIG. 15, when only one kick spring 16 is mounted on the spring support 6, the light emitter unit 4 receives the longitudinal reaction force Q from the spring receiving groove 19 by the kick spring 16. This force is a force for moving the light emitter unit 4 in the longitudinal direction.

  In this state, when the spring arm 18 of the other kick spring 16 is laid on the spring support 6, a force against the reaction force Q is applied to the light emitter unit 4 so that the light emitter unit 4 does not move. The position must be maintained in addition to the longitudinal direction, and an extra force is required, which may cause a problem in workability.

  On the other hand, in the embodiment of the present invention, even when one kick spring 16 is hung on the spring support 6, no reaction force in the longitudinal direction of the light emitter unit 4 is generated, so that workability is good. is there.

  As described above, the lighting fixture according to the present invention has a kick spring 16, which is a torsion spring that biases the light emitter unit 4 against the fixture body 3 attached to the ceiling 2, on the upper surface of the light emitter unit 4. A plurality of spring holders 6 corresponding to the respective kick springs 16 are provided on the instrument body 3 in a downward direction, and the kick springs 16 are hung on the spring receiver 6 so that the light emitter unit 4 can be mounted on the instrument. Since it is configured to abut against the main body 3, the spring holder 6 can be visually observed when constructing from below, so that the kick spring 16 can be easily mounted on the spring receiver 6, and an easy-to-construct lighting apparatus can be obtained. There is an effect.

  The lighting apparatus according to the present invention can further hold the light emitter unit 4 in a suspended state via the kick spring 16, so that a special suspension member such as a string or a chain can be used when connecting the connector 8. There is no need to suspend the light emitter unit 4 and there is an effect that it is possible to obtain a luminaire having a simple configuration and capable of detaching the light emitter unit 4 without using a special tool.

  The lighting fixture according to the present invention can further swing the light emitter unit 4 in the short direction in a state in which the light emitter unit 4 is suspended via the kick spring 16, and When it is swung, the space for connecting the connector 8 to the front side is large, and there is an effect that it is easier to see the spring receiver 6 and a lighting device that is easy to construct can be obtained.

  The lighting fixture according to the present invention is further lifted from the suspended state of the light emitter unit 4 from above after connecting the connector 8, and the light emitter unit 4 is lifted toward the fixture body 3 by the urging force of the kick spring 16. Therefore, there is an effect that a lighting device that can be easily installed and can be attached without using a special tool is obtained.

  The lighting apparatus according to the present invention further has a pair of spring arm portions 18 of the kick spring 16 symmetrical with respect to the coil portion 17 of the spring, and the spring receiver 6 has spring receiving grooves corresponding to the respective spring arm portions 18. 19 is provided, and even when only one of the plurality of kick springs 16 is hung on the spring holder 6, no force is generated to move the light emitter unit 4 in the longitudinal direction. Since the unit 4 can be stably suspended, there is an effect that a lighting device that is easy to construct can be obtained.

  Since the lighting fixture according to the present invention further includes a side or cut-and-raised portion 20 adjacent to the spring receiving groove 19 provided in the spring receiving member 6 as the inclined portion 25 inclined so as to be narrowed toward the spring receiving groove 19, When the kick spring 16 is attached, the spring arm portion 18 is guided and called by the spring receiving groove 19 along the cut-and-raised portion 20 or the inclined portion 25, so that the kick spring 16 is securely inserted into the spring receiving groove 19. There is an effect that it can be easily attached, the kick spring 16 is easy to attach, and a lighting device that is easy to construct can be obtained.

  The lighting fixture according to the present invention can further make the width dimension of the fixture body 3 in the short direction substantially equal to the width dimension of the light emitter unit 4 in the short direction, so that a plurality of lighting fixtures are adjacent in the short direction. Can be placed.

  The lighting fixture according to the present invention is further provided with three kick springs 16 in the so-called long and long lighting fixture 1, and one of them is arranged near the center of gravity of the light emitting unit 4. Even when only the kick spring 16c in the vicinity of the center is hung on the spring holder 6, the light emitter unit 4 can be stably suspended substantially horizontally, so that a lighting device that is easy to construct can be obtained. effective.

  In the lighting fixture according to the present invention, the pair of kick springs 16 sandwich the center of gravity position G even if the fixture main body 3 and the light emitter unit 4 are not linear in the longitudinal direction and are entirely or partially curved. In the vicinity of both ends in the longitudinal direction of the light emitter unit 4, the coil portions 17 are arranged so that the center lines thereof are parallel to each other, and the center of gravity G is provided within a range e which is the distance between the spring arm portions 18 of the kick springs 16. Thus, it is possible to hold the state where the light emitter unit 4 is suspended through the kick spring 16, and there is an effect that a lighting apparatus that is easy to construct can be obtained.

  In the present embodiment, the light emitter element 11 that is a light source has been described as an LED. However, the light emitter element 11 is not limited to an LED, and is an organic EL (OLED: organic light emitting diode). May be.

  Further, in the present embodiment, an example in which a plurality of kick springs 16 having the same winding direction of the coil portion 17 is provided is illustrated. However, the present invention is not limited to such a configuration. It is obvious that the winding direction of the coil portion 17 may be opposite to each other, and even with such a configuration, the same effect as described in the present invention can be obtained.

  In the present embodiment, the pair of kick springs 16 has been described as being disposed on the center line in the longitudinal direction of the light emitter unit 4, but the present invention is not limited to such an arrangement, and one kick spring 16 is short. The other kick springs 16 may be arranged so as to be shifted to the front side in the hand direction, and the other kick springs 16 may be arranged to be shifted to the back side in the short direction, and even if arranged in this way, the pair of kick springs 16 sandwich the center of gravity. Since they are arranged, the light emitter unit 4 can be stably held, and the same effect as in the present embodiment can be obtained.

With the above configuration, when attaching the luminous body unit to the fixture body mounted on the ceiling, it is not necessary to use a special tool, it is easy to connect the connector and the kick spring that is the locking means is easy to hang. An easy lighting fixture can be obtained.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Ceiling 3 Appliance main body 4 Light emitter unit 5 Translucent cover 6 Spring receiver 7 Cable 8 Connector 9 Light emitter base 10 Light emitter substrate 11 Light emitter element 12 Power supply device 15 Spring holder 16 Kick spring 17 Coil portion 18 Spring arm portion 19 Spring receiving groove 20 Cut and raised portion 21 First bent portion 22 Second bent portion 23 Stopper portion 25 Inclined portion

Claims (5)

An instrument body attached to the ceiling;
A light emitter substrate that is detachably provided at a lower portion of the fixture main body, includes a light emitter substrate, a power supply device connected to the light emitter substrate, and a lower portion of the light emitter substrate that is irradiated from the light emitter element. A translucent cover that transmits the emitted light, and a light emitter unit comprising:
A power supply device electrically connected to the light emitter substrate;
With
The upper surface of the light emitter unit facing the translucent cover includes a pair of urging members disposed with the center of gravity of the light emitter unit interposed therebetween,
The pair of biasing members are torsion springs each including a coil portion wound in a cylindrical shape and a pair of arm portions extending from both ends of the coil portion,
The pair of biasing members are arranged such that the central axes of the coil portions are parallel to each other,
The pair of urging members can be attached to and detached from spring receivers provided on the instrument body, respectively.
The lighting fixture according to claim 1,
A power supply connector connected to the power supply of the ceiling via a cable, and a power receiving connector connected to the power supply device via a cable,
The lighting device, wherein the power supply connector and the power receiving connector are electrically detachable
The lighting fixture according to claim 1,
The pair of arm portions of the biasing member includes a first bent portion in which a tip of the arm portion is bent in a direction opposite to the coil portion, and a tip of the first bent portion and the arm portion, respectively. And a second bent portion bent in the opposite direction to the first bent portion.
The lighting fixture according to claim 1,
When the pair of urging members urges the spring receiver between the coil portion and the first bent portion of the arm portion, the pair of urging members to the spring receiver. The total upward force biased against is greater than the weight of the light emitter unit,
When the pair of urging members urge the spring receiver closer to the end of the arm portion than the second bent portion of the arm portion, the spring receiver receives from the pair of urging members. The lighting fixture characterized in that the total upward force biased against the fixture is less than the weight of the light emitter unit.
The lighting fixture according to claim 1,
The spring receiver further includes a spring receiving groove that spans the arm portion of the biasing member,
The lighting fixture characterized in that the side adjacent to the spring receiving groove is inclined so that the interval becomes narrower as it approaches the spring receiving groove.