JP2010153314A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire which facilitates and secures workability on an installing part such as a ceiling. <P>SOLUTION: The luminaire 10 includes: an apparatus body B having a light-emitting unit A having light emitting elements 11; a support frame 16 by which the apparatus body is arranged on an inner circumferential side and which pivotally supports one end part of the apparatus body; and an engagement part 14e which includes a stopper piece 14e1 arranged on other end of the apparatus body, moves with respect to the apparatus body to engage with the support frame, and a locking mechanism R for restricting movement of the stopper piece. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

   The present invention relates to a luminaire having a light emitting section using a light emitting element such as a light emitting diode as a light source.

In recent years, light-emitting diodes have been adopted and commercialized as light sources for relatively large lighting fixtures such as those used in offices and general lighting due to their improved luminous efficiency. For example, Patent Document 1 discloses an illumination that includes a main body part that is embedded and attached to a ceiling surface, and a light source part that is supported by a shaft on one side edge of the lower surface opening of the main body part and that can be opened and closed with respect to the main body part. The instrument is shown.
JP 2002-117705 A

  On the other hand, in this kind of lighting fixture, the main body is made into a thin panel shape by adopting LED as the light source to reduce the weight, but the installation work on the ceiling surface etc. is the construction in the high place or in the dark Therefore, construction is difficult and how to simplify the work is an important issue. However, in the lighting fixture shown in Patent Document 1, in the paragraph number [0008], “... the light source part is rotated about the axis and pushed up, the male screw of the main body part is passed through the mounting piece of the light source part. Furthermore, when the thumbscrew is further screwed in, the light source part is closed with respect to the main body part. As described in the above, generally, a small male screw is used so that the light source part does not open from the lower surface opening of the main body part. On the other hand, it is a difficult manual operation to screw a small thumbscrew. In particular, this type of embedded luminaire performed in a high place such as a ceiling surface or in the dark is a more difficult task, which makes it difficult to perform construction and may prevent a reliable operation. In particular, the light-emitting diodes are used as the light source and the equipment has been reduced in weight, but no improvement has been made in terms of workability. Sex is required.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting apparatus capable of easily and reliably performing workability on an installation part such as a ceiling.

  The invention of the lighting fixture according to claim 1 includes a fixture main body having a light emitting portion in which a light emitting element is arranged; a support frame that pivotally supports one end of the fixture main body while the fixture main body is arranged on the inner peripheral side; A stopper piece that is provided at the other end of the instrument main body and moves with respect to the instrument main body to engage with the support frame; and an engagement part that includes a lock mechanism that restricts the movement of the stopper piece; It is characterized by. According to the present invention, the instrument body can be easily and reliably engaged with the support frame, and the workability to the installation portion such as the ceiling can be easily and reliably performed.

  In the present invention, the luminaire is preferably applied to a relatively large luminaire such as a general home or office that performs general illumination from the ceiling, such as a facility or business, but is applied to a small luminaire. Also good. Moreover, although it is preferable that this invention is applied to the lighting fixture embedded and installed in to-be-installed surfaces, such as a ceiling, the lighting fixture directly attached to a ceiling may be sufficient.

  The light-emitting element is preferably a light-emitting element using a semiconductor as a light-emitting source, such as a light-emitting diode, an organic EL, or a semiconductor laser. An incandescent bulb or a cold cathode type small fluorescent lamp may be used. The light emitting element is preferably configured to emit white light, but may be configured to be red, blue, green, or a combination of various colors depending on the use of the lighting fixture.

  The light emitting unit is a planar light source that has a rectangular shape with a flat plate shape such as a square or a rectangle, or a light emitting unit that has a long rectangular shape. However, in this case, a light emitting portion having a circular shape such as a circle or an ellipse, or a polygonal shape such as a hexagon or an octagon may be configured. The light emitting unit may include, for example, a reflector that reflects light from the light emitting element. Further, a translucent plate made of translucent synthetic resin such as translucent milky white that covers the light emitting element or tempered glass may be provided on the front surface of the light emitting unit. Further, a lattice-like light control body may be provided.

  The instrument body is preferably composed of a main body frame that supports the light emitting unit and a support frame that is disposed on the inner peripheral side, but here, it is not a separate structure for the main body frame and the support frame, but a single item. It may be configured by a configured main body case or the like. The structure in which one end of the instrument body is pivotally supported by the support frame is configured by a hinge part that can be attached and detached by fitting the hook-shaped locking piece part into the groove-shaped locking receiving part. Although it is preferable in order to improve the property, here, it may be configured by a hinge mechanism that cannot be attached and detached, such as a general hinge.

  In order to simplify the operation, it is preferable that the engaging portion engages the support frame and the other end portion of the instrument body by moving the stopper piece by a rotation operation. It may be configured to be engaged by a simple rotation operation or slide operation. The locking mechanism that restricts the movement of the stopper piece may be, for example, one that fits a convex portion and a concave portion, or one that fits a convex portion and a hole or groove so that the lock can be released. Good. In the present invention, it is preferable that the lock mechanism can be released at the same time as restricting movement. However, if the construction is prioritized only for installation work, the release of the lock mechanism is not a necessary condition, and the release function is provided. It may be a locking mechanism that does not have.

  According to a second aspect of the present invention, in the lighting apparatus according to the first aspect, the engaging portion includes a stopper having a stopper piece, a bearing portion that rotatably supports the stopper, a stopper, and a bearing portion. And a locking mechanism that restricts the rotation of the stopper.

  According to the first aspect of the present invention, there is provided a stopper piece that is provided at the other end of the instrument body and moves with respect to the instrument body to engage with the support frame, and a lock mechanism that restricts the movement of the stopper piece. The easy-to-operate and reliable engagement of the instrument body with the support frame, and easy installation of the installation part such as the ceiling. An instrument can be provided.

  According to the second aspect of the present invention, the instrument main body and the support frame can be engaged with each other by a simple operation by rotation, and can be reliably engaged by the lock mechanism, and can be applied to the installation portion such as the ceiling. It is possible to provide a lighting apparatus that can easily and reliably improve the performance.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the present embodiment is a ceiling-embedded flat panel-shaped lighting fixture that forms a square, and the lighting fixture 10 constitutes a light-emitting portion in which a light-emitting element 11 is arranged. A light emitting panel A, a main body frame 14 that is disposed and supported on the inner peripheral side, a main body frame that is disposed on the inner peripheral side, and a support frame 16 that pivotally supports one end of the main body frame; The engaging portion 14e engages with the other end of the main body frame, and the lighting device 17 that lights the light emitting element. The instrument main body B includes a light emitting panel A and a main body frame 14.

  The light emitting element 11 includes a light emitting diode (hereinafter referred to as “LED”) and a phosphor. In this embodiment, it is composed of a blue LED chip and a yellow phosphor excited by the LED chip, and emits white light with high brightness and high output. The LEDs 11 configured as described above are arranged in a matrix on a square base body 11a in a matrix form of 4 in the vertical direction and 4 in the horizontal direction. The base 11a is made of, for example, a glass epoxy or aluminum substrate, and is formed in a flat plate shape forming a square. Each LED 11 is wired and connected in series on the back side of the base.

  The base body 11a configured as described above is provided with a reflector 11c on the surface on which the LED 11 is disposed. That is, the reflector is made of a synthetic resin having heat resistance and electrical insulation, and in this embodiment, white PBT (polybutylene terephthalate) is used to form a pyramidal appearance, and the cross section is rectangular as shown in FIG. In this embodiment, a square-shaped “mortar-shaped” concave portion 11d is formed, and the LEDs 11 arranged above are located at the center of the opening 11e at the bottom so as to surround the LED chip. The reflector 11c is formed with a square opening 11f for radiating light from the LED 11 outward.

  As described above, the reflector 11c is formed as a square member in which 16 individual reflectors corresponding to the respective LEDs 11 are integrally formed by PBT, and the inside section is formed into a hollow 11g having a substantially triangular shape. In addition, the inclined inner surface of the “mortar-shaped” concave portion 11 d that forms the square of the reflector is configured as a reflecting surface 11 h. The reflective surface may be mirror-finished by vapor deposition of aluminum or silver.

  The reflector 11c configured as described above is positioned so that each LED 11 is disposed at the center of the recess 11d, and a screw or the like is attached to the heat radiating plate 11j described later so that the bottom of the reflector is in close contact with the surface of the base 11a. It is fixed with. In addition, you may adhere to the surface side of a base | substrate with the adhesive agent which consists of a silicone resin or an epoxy resin and which has heat resistance and electrical insulation.

  Four sets of the square reflector 11c having the square base 11a having the 16 LEDs 11 configured as described above and the pyramid-shaped 16 reflecting surfaces 11h facing each LED are used as a light emitting unit. A square light-emitting panel A is formed (FIG. 2A). That is, the square substrate 11a and the reflectors 11c on which the 16 LEDs 11 are arranged are arranged on the heat radiating plate 11j, two in the vertical direction and two in the horizontal direction. The heat radiating plate is made of a steel plate having a good thermal conductivity, a metal such as aluminum, or a square steel plate in this embodiment, and the rising pieces 11k are integrally formed on the opposing sides.

The base 11a provided with the LED 11 is placed on the heat sink 11j configured as described above while being positioned by the rising piece 11k, and the reflector 11c is further placed on the base 11a together with the base 11a from the back surface of the heat sink 11j. Secure with screws. As a result, a light emitting panel A having a flat square shape with LEDs arranged as light sources is formed.
As shown in FIGS. 1 and 3, the main body frame 14 integrally forms a square frame body 14 a with a metal having good thermal conductivity, in this embodiment, aluminum painted in white. The size of the frame is such that the square light-emitting panel A having the above-described configuration is arranged and supported on the inner peripheral side in the frame, and the light-emitting panel A is inserted into the frame together with the light-emitting panel A. The fixture body B of the lighting fixture that forms a square is formed. The main body frame 14 is integrally formed on all four sides with a flange portion 14b serving as a decorative edge projecting outward on the outer periphery of the frame body 14a. A locking piece 14d that protrudes like a hook on one side of the flange 14b is formed integrally and long along one side of the frame 14a. By fitting this locking piece portion 14d into a locking receiving portion 16d of the support frame 16 described later, one end of the instrument body B is pivotally supported by the support frame.

  Further, the main body frame 14 configured as described above is engaged with and supported by the support frame 16 described later at a substantially intermediate portion of the side facing the side where the locking piece portion 14d is formed. A joint portion 14e is formed. Thereby, the engaging part 14e is provided in the other end part of the instrument main body B. As shown in FIGS. 1B and 1C, the engaging portion is constituted by a stopper 14e1, a bearing portion 14e2, and a lock mechanism R.

  The stopper 14e1 is made of metal or synthetic resin, in which a screw head 14e3 having a minus groove formed at one end and a long stopper piece 14e5 projecting in a direction perpendicular to the axial direction at the middle portion of the shaft portion are integrally formed. In the embodiment, it is composed of a metal rod. The bearing portion 14e2 is configured as a synthetic resin bearing in which a cylindrical body is integrally formed on the side plate 14k of the main body frame 14, and a metal rod of the stopper 14e1 is rotatably inserted into and supported by the cylindrical body.

  The lock mechanism R is provided between the stopper 14e1 and the bearing portion 14e2, and is short in the middle of the shaft portion of the stopper 14e1 so as to protrude away from the stopper piece 14e5 in a direction perpendicular to the axial direction. It is formed by a small hole 14e6 formed in an intermediate portion of a cylindrical body constituting the convex portion 14e4 and the bearing portion 14e2, and into which the convex portion 14e4 is fitted.

  The metal rod of the stopper 14e configured as described above is inserted into the bearing portion 14e2 through the through hole 14m formed in the flange portion 14b of the main body frame 14 so as to be rotatable. Thereby, by rotating the screw head 14e3, the stopper piece 14e5 protrudes from the side surface 14k of the main body frame 14, and can be engaged with the inner flange portion 16b of the support frame 16 described later from the inner surface. At this time, the convex portion 14e4 of the lock mechanism R rotates simultaneously with the stopper piece 14e5 protruding and engaged. By this rotation, the bearing portion 14e2 is bent utilizing the elasticity of the resin, and the convex portion 14e4 is fitted into the small hole 14e6 of the cylindrical body, so that the rotation of the metal rod is restricted and locked.

  Further, the main body frame 14 is integrally formed with a collar portion 14n serving as a decorative edge protruding inwardly on the inner periphery of the frame body 14a. This collar part is locked so that the light emitting panel is not detached from the main body frame when the light emitting panel A is inserted into the main body frame 14. In addition, for example, there are four pressing members (not shown) such as leaf springs so that the light emitting panel is pressed into the inner surface of the flange 14n of the main body frame with the light emitting panel inserted into the main body frame. Supported by

  In FIG. 1, 18 is a light-transmitting plate having a thin square made of translucent milky white translucent synthetic resin provided on the front surface of the light-emitting panel A so as to cover the LED 11 and the reflector 11c, Is a square light control body configured in a lattice shape. The light transmitting plate 18 and the light control body 19 are inserted into the frame body 14a of the main body frame 14 together with the square light emitting panel A, and the light control body 19, the light transmission plate 18, Further, the light-emitting panels A are stacked one on top of the other and supported by being pressed by a pressing member.

  The support frame 16 is installed on an installation part such as a ceiling, and in this embodiment, a square frame 16a is integrally formed of a metal having good thermal conductivity, in this embodiment, aluminum coated in white like the main body frame 14. Constitute. The size of the frame body 16a is such that the square main body frame 14 having the above-described configuration is disposed inside the frame so that it can be enclosed, and the main body frame 14 is inserted into the frame, whereby a light emitting panel is provided. A square instrument body B composed of A and the body frame 14 is supported.

  The support frame 16 is integrally formed with a flange 16b projecting inward on the inner periphery of the frame 16a, and a step 16c (FIG. 4A) is integrated with the tip of the flange 16b. A locking receiving portion 16d having a substantially U-shaped cross section that opens upward in the drawing is integrally formed along the side of the frame body 16a. The latch receiving portions 16d are formed on each side of the square support frame 16, that is, on all four sides. Furthermore, the flange part 16e used as the decoration edge which protrudes toward the outer side of the frame 16a is integrally formed.

  The locking piece portion 14d of the main body frame 14 described above is fitted into the groove of the locking receiving portion 16d, and the main body frame 14 is fitted to one side of the support frame 16 by the locking piece portion 14d and the locking receiving portion 16d. The function as the hinge portion C when turning, that is, opening and closing (FIG. 4 (a)), and prevention of disengagement that prevents the main body frame 14 from being detached from the support frame 16 when it is opened. The action (FIG. 4B) is performed. Since the latch receiving portions 16d are formed on the four sides of the square support frame 16, the latch piece portions 14d of the square main body frame 14 are latched to the latch receiving portions on any side. Can do. Further, a receiving piece 16g made of a steel plate is fixed to a side plate 16f located on the opposite side of the support frame 16, and a screw hole 16h is formed in the central portion of the receiving piece (FIG. 5 (b)).

  The lighting device 17 is composed of, for example, a lighting circuit (not shown) that converts an AC voltage of 100 V into a DC voltage of 24 V and supplies it to a light emitting diode chip or the like, and is composed of a steel plate as shown in FIG. A lighting circuit is built in a case member 17a made of a long rectangular parallelepiped. Support holes are formed at both ends of the case member 17a from the side plate 17c to the upper surface plate 17d. The support hole is formed with a laterally large guide hole 17e in the side plate 17c, and a longitudinally long slot 17f is formed in the upper surface plate 17d in succession to the guide hole. The guide hole 17e can be inserted with a nut 21 of a suspension bolt 20, which will be described later, and the long hole 17f is formed with a dimension that allows the bolt 20 to be inserted but the nut 21 cannot be inserted. Further, screw holes 17g for attachment are formed on both side plates 17c of the case member 17a so as to be positioned below the guide holes 17e.

  The case member 17a having a built-in lighting circuit is configured to be supported by the support frame 16. That is, the case member 17a is arranged so as to straddle the side plates 16f located on the opposite sides of the support frame 16, and the screw holes 16h of the receiving pieces 16g fixed to both the side plates 16f are placed on both sides of the case member 17a. The screw holes 17g of the plate 17c are matched so that they can be fixed with screws.

  Further, from one side plate 17c of the case member 17a, a terminal portion 17j connected to the output end of the lighting circuit is drawn out and attached to the tip of the panel side lead wire w connected to the input terminal of the light emitting panel A. The connector 12c is connected (FIG. 6B). In this case, when the case member 17 a is attached to the support frame 16, the side plate 17 c from which the terminal portion 17 j is pulled out, in other words, the terminal portion 17 j faces the vicinity of the groove-shaped locking receiving portion 16 d of the support frame 16. Position it so that it is attached.

  The lighting fixture 10 composed of the light-emitting panel A, the main body frame 14, the support frame 16, and the lighting device 17 configured as described above is installed and used on the ceiling surface X that is an installation portion as follows (FIG. 6).

  Note that a square opening h having a size into which the support frame 16 can be inserted is formed in the ceiling X in advance, and two suspension bolts 20 are installed on the support material 30 on the back of the ceiling. The two suspension bolts are installed at intervals roughly matching the distance between the support holes formed at both ends of the case member 17a of the lighting device 17, and two nuts 21 and 21 are attached to each of the suspension bolts ( FIG. 5 (a)).

  First, the lighting device 17 is supported in advance on the support frame 16 as shown in FIG. Next, as shown in FIG. 6 (a), the support frame 16 supporting the case member 17a of the lighting device is inserted into the ceiling through the opening h of the ceiling X with the case member 17a facing upward. The nut 21 of the left suspension bolt 20 is inserted into one of the support holes, in this embodiment, the guide hole 17e of the left support hole in FIG. At this time, the lower nut 21 of the two nuts 21 is inserted into the guide hole 17e, and the bolt 20 is inserted into the elongated hole 17f. The upper nut 21 faces the upper surface plate 17d of the case member 17a. Similarly, the right suspension bolt 20 is bent, the lower nut 21 is inserted into the guide hole 17e, and the bolt 20 is further inserted through the long hole 17f.

  In this state, the support frame 16 is aligned with the opening h. At this time, the bolt 20 is slid left and right within the elongated hole 17f of the case member 17a so that the knurled surface around the opening h is hidden by the flange portion 16e serving as a decorative edge of the support frame 16. In this state, the mounting position of the support frame 16 with respect to the ceiling X is determined. In this state, the two nuts 21 of each suspension bolt 20 are tightened to fix the case member 17a to the two suspension bolts 20. Accordingly, the support frame 16 is fixed to the support member 30 on the back of the ceiling via the case member 17a of the lighting device (FIG. 6A).

  At this time, since the lighting device 17 is fixed in a state of straddling the support frame 16, openings a are formed on both sides of the lighting device (FIG. 5A). This is done while observing the state of the suspension bolt 20 and nut 21. Also, the installation work on the ceiling surface X is carried out by attaching only the light support frame 16 made of synthetic resin to the support frame 16 in a state in which the fixture main body B in which the light emitting panel A and the main body frame 14 are integrated is not attached. Lift and install.

  Next, the main body frame 14 is lifted, and the locking piece portion 14 d of the main body frame 14 is fitted into the groove of the locking receiving portion 16 d formed on the inner periphery of the support frame 16. At this time, since the latch receiving portions 16d are formed on the four sides of the support frame 16 having a square shape, the latch piece 14d of the main body frame 14 is latched to the latch receiving portions 16d on any side. Therefore, by looking at the situation of obstacles near the ceiling, select and decide which side to be locked. As described above, the main body frame 14 is supported in a state of being suspended from one side of the support frame 16 (FIG. 6B).

  Next, with respect to the frame body 14a of the main body frame 14 in the suspended state, the light control body 19, the light transmitting plate 18, and the light emitting panel A are sequentially overlapped and inserted on the inner surface of the inner flange portion 14n. The main body frame 14 and the light emitting panel A are integrated by pressing and supporting with a pressing member (FIG. 6B). Next, the connector 12c of the lead wire w on the light emitting panel A side is connected to the terminal portion 17j drawn out from one side plate 17c of the case member 17a of the lighting device 17. At this time, since the wiring connection between the lighting device 17 and the light emitting panel A can be performed on the hinge C side, the light emitting panel side lead wire w may be short. These operations can be performed in a state in which the main body frame 14 is drawn out of the support frame 16 and suspended, and the workability is improved.

  As described above, since the hinge portion C is configured in a state where the locking piece portion 14d is locked to the locking receiving portion 16d, the locking piece portion 14d of the main body frame 14 is rotated around the locking receiving portion 16d as an axis. Move. That is, the main body frame 14 integrated with the light emitting panel A or the like is locked to one side of the support frame 16 so that the main body frame 14 is inserted into the support frame 16, in other words, the light emitting panel. A is pushed up and closed so as to close the opening of the support frame 16 at A (in the direction of the arrow in FIG. 6B).

  Thereby, the engaging portion 14 e provided on the side opposite to the side locked by the main body frame 14 abuts on the flange portion 16 b of the support frame 16. In this state, as shown in FIGS. 1B and 1C, the screw head 14e3 of the stopper 14e1 exposed on the surface of the main body frame 14 is rotated to the left or right using a flat-blade screwdriver. 14e5 is protruded from the side surface 14k of the main body frame 14, and is engaged with the flange portion 16b of the support frame 16 from the inner surface. Thereby, one side of the main body frame 14 is engaged and supported by the engaging portion 14e by fitting the locking piece portion 14d and the locking receiving portion 16d of the support frame 16 together.

  At this time, the convex portion 14e4 of the locking mechanism R is fitted into the small hole 14e6 of the cylindrical body, and the rotation of the metal rod is restricted and locked, and the stopper piece 14e5 loosens and rotates due to vibration or long-term use. The instrument body B can be reliably engaged with the support frame 16 without being disengaged from the inner surface of the flange portion 16b of the support frame 16, and the safety against the possibility of dropping or the like is maintained.

  As described above, the lighting fixture 10 including the light-emitting panel A, the main body frame 14, the support frame 16, and the lighting device 17 is installed on the ceiling X. The opening h of the ceiling is covered with a collar 16e which is a decorative edge of the support frame 16, and the collar 16e and the collar 14b of the main body frame 14 are flush with each other so that the ceiling surface X is installed in a flat state. The appearance is also improved.

  When the lighting fixture 10 installed above is turned on, the LED 11 of the light emitting panel A emits white light. The light emitted from the LEDs is emitted downward and laterally, reflected by the reflecting surface 11h of the reflector 11c, and illuminated with a wide, substantially circular light distribution that irradiates the entire surrounding area including directly under the fixture. At the same time, a part of the light reflected by the reflecting surface 11h is emitted toward the side of the appliance, and irradiates the ceiling surface X over a wider range.

  Further, the heat generated from each LED 11 at the time of lighting is radiated to the outside from the base 11a through the steel plate heat radiating plate 11j. Further, the heat of the lighting device 17 is also radiated through the case member 17a made of a steel plate and the main body frame 14 made of aluminum. As a result, the light emission efficiency of the LED can be prevented from being lowered, the light flux can be prevented from being lowered due to the temperature rise, and the life of the LED can be extended. In addition, the reliability of the circuit components of the lighting device 17 can be improved.

  Next, when taking out the light emission panel A by maintenance etc. of LED etc. which become a light source, it removes as follows. First, as shown in FIGS. 1B and 1C, the screw head 14e3 of the stopper 14e1 exposed on the surface of the main body frame 14 is rotated to the left or right using a flat-blade screwdriver. The engagement with the inner surface of the flange 16b of the support frame 16 is released. At this time, the convex portion 14e4 of the lock mechanism R rotates simultaneously. By this rotation, the bearing portion 14e2 is bent utilizing the elasticity of the resin, and the convex portion 14e4 is released from the small hole 14e6 of the cylindrical body, and the lock is released.

  In this state, the locking piece portion 14d of the main body frame 14 is rotated about the locking receiving portion 16d of the support frame 16 as an axis, and is rotated so as to open the main body frame 14 from the opening of the support frame 16 ( FIG. 4 (a) → (b)). Thereby, the hook-shaped locking piece portion 14d of the main body frame 14 is locked in the groove of the locking receiving portion 16d. As a result, the main body frame 14 is locked and suspended so as not to be detached from the support frame 16 in the opened state (FIG. 6B).

  In this state, the pressing member that holds the light emitting panel A against the main body frame 14 may be removed, and the light emitting panel A may be pulled out from the main body frame 14. When the light emitting panel is removed together with the main body frame 14, as shown in FIG. 4C, the groove of the locking receiving portion 16d and the hook-like locking piece portion 14d of the main body frame 14 are locked. From this state, the main body frame 14 together with the light-emitting panel A, that is, the instrument, is released by further rotating in the opening direction to release the locking state between the hook-shaped locking piece portion 14d and the groove of the locking receiving portion 16d. The main body B can be removed from the support frame 16.

  As described above, according to the present embodiment, the engaging portion 14e is provided for engaging the support frame 16 installed on the ceiling and the other end portion of the main body frame 14 supporting the light emitting panel A by rotating the stopper piece. Therefore, during construction, the screw head 14e3 of the stopper 14e1 exposed on the surface of the main body frame 14 can be simply rotated, and a small thumbscrew can be rotated many times as in the past. Therefore, it is possible to remarkably improve the workability in high places and in the dark.

  In the engaged state, the locking mechanism R can reliably regulate the rotation of the stopper piece 14e5, and the stopper piece 14e5 can be loosened and rotated with the support frame 16 due to vibration or long-term use. The main body frame 14 that supports the light-emitting panel A without being detached, that is, the instrument main body B can be reliably engaged with the support frame 16, and a safe lighting apparatus that can be prevented from dropping can be provided. . In particular, a small LED is used as the light source of the light emitting panel A, the entire panel is lightened, the instrument body B is easily rattled by some vibrations, etc., and the stopper piece 14e5 of the engaging portion 14e is also easy to move. The problem can be solved.

  In addition, the configuration of the engaging portion 14e is formed integrally with the main body frame 14 and includes a bearing portion 14e2 and a stopper 14e1 made of a metal rod, and the configuration is extremely simple and advantageous in terms of cost. Further, the lock mechanism R has a simple and simple structure including a convex portion 14e4 formed on a metal rod and a small hole 14e6 formed in a cylindrical body, and an operation for locking is a stopper 14e1 for engagement. This operation can be performed simultaneously with the rotation operation, and it is not necessary to perform a special operation for locking, so that the workability can be further improved. Further, the bearing portion 14e2 is formed integrally with the main body frame 14 made of synthetic resin and can be locked using the elasticity of the resin, so that it is not necessary to use a special elastic member such as a spring, and the configuration is This is simple and advantageous in terms of cost. Furthermore, the unlocking can be performed simultaneously with the releasing operation of the engaging portion 14e at the time of removing the fixture body B, so that a special releasing operation is not required and a lighting fixture having excellent operability can be provided.

  Further, a main body frame 14 formed with a locking piece portion 14d protruding in a hook shape on one side, and a groove-shaped locking receiving portion 16d for fitting the locking piece portion 14d of the main body frame 14 on each side forming a square. Since the formed support frame 16 is configured, only the light support frame 16 can be first installed on the ceiling X. From the support frame 16 having the frame body 16a opened, the situation behind the ceiling, suspension bolts 20, nuts 21, etc. It can be done while looking at the condition, making it easier to install.

  Further, the support frame 16 is first installed on the ceiling X, and the locking piece portion 14d of the main body frame 14 is fitted to the locking receiving portion 16d of the support frame 16 that has already been installed, so that the main body frame 14 is attached to the support frame 16. In this state, the light emitting panel A can be attached to the main body frame 14, and the installation work on the ceiling surface X is performed by the support frame 16 in which the light emitting panel A and the main body frame 14 are integrated. It is only necessary to lift and install the light support frame 16 made of a synthetic resin without attaching it, and it is possible to perform construction without supporting a relatively heavy object such as a lighting device as in the prior art. With these actions, it is possible to further facilitate the workability on the installation part such as the ceiling. In particular, in a lighting fixture that employs an LED as a light source and is reduced in weight, it is possible to provide a lighting fixture that is more excellent in workability in combination with the weight reduction of the main body.

  Further, since the latch receiving portions 16d of the support frame 16 are formed on the four sides of the square support frame 16, the latch piece portions 14d of the square main body frame 14 are connected to the latch receiving portions on any side. Since it can be locked, the state of the obstacle near the ceiling, etc., and determining whether the main body frame 14 can be opened and closed with respect to the support frame 16, etc. It is possible to select and determine whether or not the 14 locking piece portions 14d are to be fitted, and it is possible to provide a lighting fixture with excellent workability. At the same time, it is possible to prevent the instrument body B from hitting an obstacle on the ceiling surface X and being unable to be removed due to maintenance after installation. Moreover, since the latching piece part 14d and the latching receiving part 16d are formed long along one side and can fit both together reliably, the reliable hinge part C can be comprised, The operability at the time of opening and closing the frame 14 is good, and rattling or the like does not occur. Further, the gap between the main body frame 14 and the support frame 16 can be hidden by the long locking piece portion 14d and the locking receiving portion 16d, and the appearance is also improved.

  Moreover, since the case member 17a of the lighting device 17 is attached to the support frame 16, the lighting device 17 can be installed simultaneously with the installation of the support frame 16 on the ceiling X, and the construction is further simplified.

  As described above, in the present embodiment, the engaging portion 14e that engages the support frame 16 installed on the ceiling X, which is the installation portion, and the other end portion of the instrument body B by moving the stopper piece 14e5 is rotated. Not limited to this, it may be performed by a slide operation. That is, as shown in FIG. 7A, the stopper piece of the stopper is composed of a slide piece 14e5 'made of metal or synthetic resin, and is slidably inserted into the guide hole 14e7 formed in the side plate 14k of the main body frame 14. The knob 14e3 'exposed on the surface of the main body frame 14 may be picked and simply slid to the left or right (in the direction of the arrow in the figure). The locking mechanism R in this case is configured by fitting a convex portion 14e4 'of the slide piece 14e5' and a concave portion 14e6 'formed on the inner surface of the guide hole 14e7.

  Moreover, although the engaging part 14e was provided in the main body frame 14, as shown to FIG.7 (b), you may form the engaging part 14e in the support frame 16 side. That is, the bearing portion 14e2 is formed integrally with the side plate 16k of the support frame 16, and the stopper piece 14e5 is engaged with the protruding piece 14e9 formed integrally with the main body frame 14 from below.

  Moreover, although the lock mechanism R was comprised with the convex part and the small hole, it may be comprised by the recessed part which is a hole which does not penetrate a small hole, and you may make it each fit and lock. Further, as shown in FIG. 7C, pins are embedded in the metal rod of the stopper 14e1 to form convex portions 14e4 'at both ends, and a pair of groove-like shapes are formed on the opening edge portion 14e10 of the cylindrical body of the bearing portion 14e2. A concave portion 14e6 ′ may be formed, and the convex portion 14e4 ′ and the groove-shaped concave portion 14e6 ′ may be fitted.

  Further, the convex portion 14e4 is formed in the metal rod of the stopper 14e1, and the small hole 14e6 is formed in the bearing portion 14e2. Conversely, the small hole 14e6 or the concave portion 14e6 ′ is formed in the metal rod or the slide piece 14e5 ′ of the stopper 14e1. The convex portion 14e4 may be formed in the bearing portion 14e2 or the guide hole 14e7. The lock mechanism R is configured to engage and release the convex portion and the concave portion using the elasticity of the resin, but the bearing portion and the stopper are both made of metal and the convex portion is made of a metal ball. Then, it may be configured to be urged by a coil spring or the like so as to be always protruded, and to be fitted into or released from the concave portion of the bearing portion. According to this, engagement and disengagement can be performed more securely, and a “click” and a metal sound can be generated at the time of fitting, and an engaging portion with good operability is configured in combination with the joint operation. Can do.

  Moreover, although the latch receiving part 16d of the support frame 16 was formed in all the four sides of the support frame 16, you may make it form only in the edge | side facing the stopper 14e1 which is the engaging part 14e. Although the locking receiving portion 16d and the locking piece portion 14d are formed long along the side, either one or both may be formed shorter than the length of the side.

  Moreover, although the instrument main body B and the support frame 16 were configured in a square shape, as shown in FIG. 7 (d), the device body B and the support frame 16 were configured in a circular shape and provided with a hinge portion C 'made of a butterfly plate at one end portion and at the other end portion. The engaging portion 14e described above may be provided.

  The main body frame 14 and the support frame 16 are made of a metal having good thermal conductivity, but may be made of a synthetic resin having heat resistance, weather resistance and electrical insulation, for example, PBT (polybutylene terephthalate). .

  The locking piece portion 14d is formed integrally with the synthetic resin main body frame 14, but a separate locking piece portion made of metal or the like in a bowl shape may be attached to one side of the main body frame. . The locking receiving portion 16d is formed in a groove shape on each side of the support frame 16 having a rectangular shape, that is, on the four sides, but may be formed not only on the four sides but also on one side. Further, for example, although formed integrally with the support frame 16 made of synthetic resin, a separate latch receiving portion formed in a groove shape with metal or the like may be attached to each side of the support frame.

  The lighting device 17 may be provided on the main body frame 14 or the light emitting panel A. Alternatively, these members may be installed separately from the ceiling or the like. Although this invention comprised the lighting fixture installed by being embedded in to-be-installed surfaces, such as a ceiling, the lighting fixture installed by attaching directly to a ceiling may be sufficient. The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

The lighting fixture which concerns on 1st Embodiment of this invention is shown, (a) is a longitudinal cross-sectional view, (b) is a longitudinal cross-sectional view of an engaging part, (c) is sectional drawing which follows the AA line of (b). . The light emission panel of a lighting fixture is shown similarly, (a) is a front view, (b) is sectional drawing which follows the AA line of (a), (c) is sectional drawing which expands and shows the principal part of (b). . The perspective view which similarly shows the assembly procedure of a lighting fixture. Similarly, the locking piece portion and the locking receiving portion of the luminaire are shown enlarged, (a) is a sectional view showing a fitted state, (b) is a sectional view showing a locked and suspended state, c) Sectional drawing which shows the state removed. Similarly, the lighting device of a lighting fixture and a support frame are shown, (a) is a perspective view showing an assembled state, and (b) is a perspective view showing a side plate portion of the support frame. Similarly, shows the construction procedure when installing the lighting fixture on the ceiling, (a) is a cross-sectional view showing a state where the support frame is installed on the ceiling, (b) is a state where the light emitting panel is supported on the suspended body frame (C) is sectional drawing which shows the state which supported the main body frame which integrated the light emission panel etc. in the support frame. The modification of a lighting fixture is similarly shown, (a) is sectional drawing which shows the 1st modification of an engaging part, (b) is sectional drawing which shows the 2nd modification of an engaging part, (c) is related. Sectional drawing which shows the 1st modification of the locking mechanism of a joint part, (d) is the front view which looked at the 1st modification of the lighting fixture from the downward | lower direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Light emitting element A Light emission part B Appliance main body 14e Engagement part 14e1 Stopper 14e2 Bearing part 14e5 Stopper piece R Lock mechanism 16 Support frame

Claims (2)

An instrument main body having a light emitting part in which a light emitting element is disposed;
A support frame that disposes the instrument body on the inner peripheral side and pivotally supports one end of the instrument body;
An engagement portion provided at the other end of the instrument body and provided with a stopper piece that moves relative to the instrument body and engages the support frame; and a lock mechanism that restricts the movement of the stopper piece;
The lighting fixture characterized by comprising. The engaging portion includes a stopper having a stopper piece, a bearing portion that rotatably supports the stopper, and a lock mechanism that is provided between the stopper and the bearing portion and restricts the rotation of the stopper. The lighting fixture according to claim 1, wherein the lighting fixture is provided.

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