JP2008269991A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire capable of increasing an illuminating radiation amount and being improved in the workability for attachment/detachment. <P>SOLUTION: The luminaire is provided with an instrument body 2 attached to a ceiling CB, a lamp socket 7 disposed on the instrument body 2 on its one side, and a lamp 10 attached to the instrument body 2 through the lamp socket 7. The lamp socket 7 is attached to the instrument body 2 through fittings 8. A fixed piece 81 of the fittings 8 has a supporting piece 85, substantially perpendicular to the fixed piece 81, uprightly disposed at an end thereof. The supporting piece 85 is located at a portion of a base 102 of the lamp 10 bordering with an arc tube 101 in a state in which the lamp 10 is put in the lamp socket 7, and has a substantially arc notch portion 85b at a portion thereof corresponding to the base 102. The supporting piece 85 has a reflecting face, for reflecting light from the lamp 10, formed on a face thereof on a side of the arc tube 101. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lighting fixture.

  Conventionally, there has been a lighting fixture using a cover having translucency (see, for example, Patent Document 1). This lighting fixture has a horizontally long, substantially rectangular plate-like fixture body, and lamp sockets for mounting lamps are provided at both ends in the longitudinal direction on one side of the fixture body. A lamp is disposed between the lamp sockets, and a light-transmitting cover is attached to the fixture body so as to cover the lamp, and light emitted from the lamp passes through the cover and is irradiated to the outside.

  Moreover, as shown in FIG.9 and FIG.10, the lighting fixture 200 provided with the lamp covers 240 and 250 is also proposed. This lighting fixture 200 has a horizontally long fixture body 210, and lamp sockets 230 are respectively provided at both longitudinal ends on one side (lower side) of the fixture body 210 via socket mounting plates 211 erected from the fixture body 210. The lamp 220 is mounted between the lamp sockets 230 and 230. A lamp cover 240 having a substantially rectangular frame shape and a lamp cover 250 having a substantially rectangular frame shape having an outer dimension smaller than that of the lamp cover 240 are provided below the lamp 220 in the vertical direction.

  Furthermore, as shown in FIGS. 11 and 12, a lighting fixture 300 is also proposed in which end caps 330 are covered on both ends of the lamp 320. This lighting fixture 300 has a substantially rectangular box-shaped fixture main body 310, and a plurality of lamp sockets (not shown) are arranged on both lower ends in the lower surface of the fixture main body 1. Each is provided with a lamp 320. Further, end caps 330 are respectively attached to both ends of each lamp 320 so as to cover the lamp socket.

  The end cap 330 is a resin molded product made of, for example, a resin material having elasticity. As shown in FIG. 12, the end cap 330 has an end plate 331 formed so as to overlap the lamp 320 in the axial direction of the lamp 320, and an end plate 331. And a peripheral wall portion 332 that protrudes integrally with the peripheral edge portion. The peripheral wall portion 332 is open at a surface facing the instrument main body 310, and a pair of locking claws 333 for attaching the end cap 330 to the instrument main body 310 are integrally provided at the opening edge.

On the other hand, the instrument main body 310 is provided with a pair of locking holes (not shown) for locking the locking claws 333 at portions corresponding to the pair of locking claws 333. Therefore, the end cap 330 is attached to the fixture main body 310 so as to cover the end portion of the lamp 320 and the lamp socket by inserting the locking claws 333 into the corresponding locking holes and locking them.
JP-A-2005-235398 (paragraph [0017] -paragraph [0020] and FIGS. 1 to 2)

  The lighting apparatus shown in Patent Document 1 and the lighting apparatus 200 shown in FIGS. 9 and 10 are provided with a light-transmitting cover and lamp covers 240 and 250 in order to prevent direct viewing of the lamp. There is a possibility that the amount of irradiation light is reduced by the amount of light irradiated from the lamp toward the lamp socket.

  11 and 12, the end cap 330 is covered on both ends of the lamp 320 so as to cover the end of the lamp 320 and the lamp socket. The end cap 330 is made of resin. It is made to improve the appearance and does not have a function of reflecting the light irradiated from the lamp 320 to the lamp socket side, and the amount of irradiation light of the lighting fixture 300 cannot be increased. It was. The end cap 330 is attached after the lamp 320 is attached to the lamp socket. When the lighting fixture 330 is disposed at a high position, the end cap 330 is provided on the base of the lamp 320 when the lamp 320 is attached. In addition, there is a possibility that the lamp pin may enter the gap between the fixture body 310 and the lamp socket, and it is difficult to attach the lamp 320.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a luminaire that increases the amount of irradiation light and improves the detachability of the lamp.

  According to a first aspect of the present invention, there is provided a lamp body, a lamp body comprising lamps provided at both ends of the lamp tube, disposed on one side, a lamp socket provided on the lamp body and mounted with a lamp cap, and a lamp The lamp cover is placed on the opposite side of the fixture body to prevent direct viewing of the lamp, and when the lamp is installed, it is placed at the boundary between the lamp tube and the arc tube. And a reflecting plate for reflecting the emitted light.

  The invention according to claim 2 is characterized in that the reflecting plate also serves as a movement restricting means for restricting the movement of the lamp toward the fixture body by contacting the lamp when the lamp is mounted.

  According to the invention of claim 1, by providing the reflector, it is possible to reflect the light irradiated from the lamp toward the lamp socket, it is possible to increase the amount of light irradiated in the light irradiation direction, There is an effect that the irradiation efficiency of the lamp is improved. In addition, by disposing the reflector at the boundary of the lamp base with the arc tube, the arc tube can be fully exposed when the lamp is mounted, so that the amount of light emitted from the lamp can be increased and the lamp illumination can be increased. There is an effect that the efficiency is further improved. Furthermore, by providing the reflecting plate, the reflecting plate functions as a blindfold inside the lamp socket when the lamp is mounted, so that the appearance is improved.

  According to the second aspect of the present invention, since the movement of the lamp toward the fixture body is restricted by the reflecting plate, the base does not enter the gap between the lamp socket and the fixture body when the lamp is mounted, and the lamp is mounted. This has the effect of improving the performance. In addition, since the reflector is provided at the boundary of the lamp base with the arc tube, the lamp can be brought into contact with the reflector when the lamp is brought into contact with the reflector. There is also an effect that it can be secured.

  An embodiment of the present invention will be described with reference to FIGS. The luminaire 1 according to the present invention is attached to, for example, a ceiling CB as shown in FIG. 2 and used to illuminate a room or the like. In the following description, in order to simplify the description, the upper side in FIG. 1 is defined as the upper side of the luminaire 1 and the lower side is defined as the lower side of the luminaire 1.

  A lighting fixture 1 according to the present invention includes a horizontally long fixture body 2 that is attached to a ceiling CB via a flange portion 9 described later, and a lamp socket 7 that is disposed on one side of the fixture body 2 (lower side in FIG. 1). A lamp 10 attached to the instrument body 2 via the lamp socket 7, a lamp cover 3 disposed on the opposite side of the lamp 10 to the instrument body 2 to prevent the lamp 10 from being directly viewed, and the instrument body 2 is provided with end caps 4 attached so as to cover the gap between the fixture body 2 and the lamp cover 3 at both longitudinal ends.

  Here, the lighting fixture 1 of this embodiment is suspended by a flange 9 fixed to the ceiling CB as shown in FIG. 2, and the flange 9 is a lighting device (not shown) such as a ballast, And a flange main body 9a for housing the lighting device.

  The flange main body 9a includes a horizontally long substantially box-shaped flange body 90 that opens on the upper surface side, and a flange cover 91 that is attached to the flange body 90 so as to close the upper surface opening of the flange body 90.

  The flange cover 91 is formed in a substantially rectangular plate shape that closes the upper surface opening of the flange body 90, and a power line insertion for inserting a power source line C such as a commercial power source drawn from the ceiling CB is inserted into the center of the flange cover 91. A hole 91a is provided in the thickness direction. Further, on both ends in the longitudinal direction of the flange cover 91, fixing screw insertion holes 91b through which fixing screws 92 for fixing the flange 9 to the ceiling CB are inserted in the thickness direction. Further, in the longitudinal direction of the flange cover 91, bolt insertion holes 91c through which mounting bolts 93 for attaching the flange body 90 to the flange cover 91 are inserted in the thickness direction on both sides of the power supply line insertion hole 91a. Has been.

  The flange cover 91 has two fixing screws 92 inserted into the fixing screw insertion holes 91b from below in a state where the power supply line C is inserted into the power supply line insertion holes 91a, and screw holes provided in the ceiling CB. It is fixed to the ceiling CB by being screwed to H.

  On the other hand, the bolt insertion hole 90a into which the tip of the mounting bolt 93 inserted into the bolt insertion hole 91c is inserted is thick at a portion of the bottom surface (lower surface) of the flange body 90 that faces each bolt insertion hole 91c of the flange cover 91. The flange body 90 is attached to the flange cover 91 by fitting the attachment nut 94 to the tip of the attachment bolt 93 inserted through the bolt insertion hole 90a.

  Incidentally, the above-described lighting device is accommodated in the flange body 90. This lighting device is configured to generate driving power for the lamp 10 based on power from a commercial power source supplied through a power line C, and an input terminal to which the power line C is connected. (Not shown) and an output terminal (not shown) to which the connector 95a on one end side of the power supply line 95 is connected.

  In addition, a wiring hole 90b is provided in the bottom surface of the flange body 90 in the thickness direction for drawing the other end of the power supply line 95, one end of which is connected to the lighting device, out of the flange main body 9a. Furthermore, on the both bottom sides of the flange body 90 in the longitudinal direction, suspension holes 90c through which suspension means 96 such as a wire for suspending the luminaire 1 are inserted through the flange 9 are respectively penetrated in the thickness direction. Yes.

  The lighting fixture 1 of this embodiment is attached to the ceiling CB by the flange 9 described above, and driving power for the lamp 10 is supplied from the lighting device of the flange 9.

  As shown in FIG. 2, the instrument main body 2 is attached to a long main body portion 5 and one surface side in the thickness direction of the main body portion 5 (the lower surface side in FIG. 2), and the light irradiated from the lamp 10 is irradiated on the lower surface side. And a long reflecting plate 6 that reflects the light. Here, the main body 5 and the reflector 6 are made of a metal material such as aluminum or iron, for example.

  The reflecting plate 6 is formed in a substantially arc shape in which a cross-sectional shape in a plane orthogonal to the longitudinal direction is convex upward, and a white paint or the like is applied to the entire lower surface thereof to reflect light emitted from the lamp 10. A reflective surface is formed. In addition, a bulging portion 6 a that forms a convex portion on the lower surface side of the reflecting plate 6 and a concave portion on the upper surface side of the reflecting plate 6 extends in the longitudinal direction of the reflecting plate 6 at the central portion in the width direction of the reflecting plate 6. Are formed along. Here, the bulging portion 6a has a gap that allows a person's finger to be inserted between a portion of the reflecting plate 6 excluding the bulging portion 6a and a pair of attachment pieces 40 of the end cap 4 described later. The bulging dimension is set so that is formed.

  A lamp socket (hereinafter referred to as a socket) 7 for attaching the lamp 10 to the fixture main body 2 is provided on the lower surface side of the bulging portion 6a of the reflecting plate 6 on the both ends in the longitudinal direction. They are mounted in a state of facing each other. The socket 7 is a well-known socket and will not be described in detail.

  By the way, in the state which attached the reflecting plate 6 to the main-body part 5, the storage space which consists of the space between the main-body part 5 and the bulging part 6a of the reflecting plate 6 is formed. In this storage space, a connection part (not shown) connected to a connector (not shown) on the other end side of the power supply line 95 and a connection line for electrically connecting the connection part and both sockets 7 respectively. 70 is stored. In addition, the bulging portion 6 a of the reflecting plate 6 is provided with a lead-out hole 6 b for connecting the connection wire 70 wired in the storage space to the socket 7 as shown in FIG.

  The main body 5 constitutes a top plate portion of the instrument main body 2 and is formed with an opening (not shown) for exposing the above-described connecting portion. Further, an attachment portion (not shown) for attaching the above-described suspending means 96 is provided on the upper side of the main body portion 5. Therefore, the luminaire 1 is arranged in a state where the socket 7 is connected to the lighting device of the flange 9 via the power supply line 95 and is suspended from the flange 9 by the suspension means 96.

  Incidentally, the socket 7 is attached to a fixture 8 as shown in FIG. 1, and is attached to the reflector 6 via the fixture 8.

  The fixture 8 is formed by bending a metal plate, for example, and the direction along the longitudinal direction of the instrument body 2 is the normal direction, and the rear surface of the socket 7 (the surface opposite to the facing surface 7a) is applied. A socket mounting piece 80 to which the socket 7 is fixed by screwing or the like in the contacted state, and extends from the upper end edge of the socket mounting piece 80 to the center in the longitudinal direction of the instrument body 2 (left side in FIG. 1). A fixing piece 81 for fixing 8 to the reflecting plate 6 is provided, and a feeding line insertion hole (not shown) communicating with the lead-out hole 6b of the reflecting plate 6 is provided through the fixing piece 81 in the thickness direction. . Further, as shown in FIG. 1, the fixed piece 81 is formed with a locking piece 81 a that is inserted into the drawing hole 6 b and locked to the opening edge of the drawing hole 6 b by cutting and raising, for example.

  Further, the fixture 8 has a normal direction as a direction along the longitudinal direction of the fixture body 2, and a lamp cover attachment piece 82 for attaching the lamp cover 3 to the fixture body 2, and an upper end edge of the lamp cover attachment piece 82. The fixture main body 2 includes a fixing piece 83 that extends to the longitudinal end side (right side in FIG. 1) and fixes the fixture 8 to the reflection plate 6. The fixture 83 reflects the fixture 8. A screw insertion hole 83a through which a fixing screw S1 for fixing to the plate 6 is inserted is provided in the thickness direction. Further, as shown in FIG. 3A, substantially triangular support protrusions 82a for supporting an end cap 4 to be described later are integrally provided on both ends in the width direction of the lamp cover mounting piece 82. Note that a screw hole 6c into which the fixing screw S1 is screwed is formed at a portion of the reflector 6 corresponding to the screw insertion hole 83a. The lamp cover mounting piece 82 is formed with a screw hole (not shown) into which a fixing screw S2 for mounting the lamp cover 3 is screwed.

  Here, the socket mounting piece 80 and the lamp cover mounting piece 82 are arranged in such a manner that the lamp cover mounting piece 82 is arranged on the end side in the longitudinal direction of the fixture body 2 with respect to the socket mounting piece 80 and the lower ends thereof are bridges. The tangle pieces 84 are integrally connected. Therefore, the fixture 8 locks the locking piece 81a of the fixing piece 81 to the opening edge of the lead-out hole 6b, and the fixing screw S1 inserted through the screw insertion hole 83a of the fixing piece 83 to the screw of the reflecting plate 6 It is attached to the reflecting plate 6 by being screwed into the hole 6c.

  Further, in the fixed piece 81, the end of the instrument main body 2 in the longitudinal center side is in a direction substantially orthogonal to the fixed piece 81 and in the same direction as the socket mounting piece 80 as shown in FIGS. 1 and 3A. A plate-like support piece 85 standing upright is integrally provided, and substantially triangular support protrusions 85a for supporting the end cap 4 are integrally provided on both ends of the support piece 85 in the width direction. ing. Further, a substantially arc-shaped notch 85 b formed in substantially the same shape as the outer shape of the base 102 of the lamp 10 is provided at the lower end of the support piece 85. Here, a reflection plate is constituted by the support piece 85, and a movement restricting means is constituted by the support piece 85. The support piece 85 is disposed so that a notch 85 b is located at a boundary portion between the base 102 of the lamp 10 and the arc tube 101 in a state where the lamp 10 is mounted in the socket 7. Further, the support piece 85 is coated with a white paint or the like on the left side in FIG. 1 to form a reflection surface that reflects light from the lamp 10.

  The lamp cover 3 is made of, for example, metal, and is formed to have a longer dimension than the lamp 10 along the longitudinal direction of the fixture body 2 as shown in FIG. 2 and has a cross-sectional shape in a plane orthogonal to the longitudinal direction. Are formed in a substantially arc shape that protrudes downward, and both ends in the longitudinal direction are open.

  On the upper surface of the lamp cover 3, on both ends in the longitudinal direction, as shown in FIG. 1, a fixture 30 for attaching the lamp cover 3 to the fixture body 2 is screwed with a fixing screw S3. The fixture 30 is made of, for example, a metal plate, and a horizontal piece 31 having a screw insertion hole 31a through which the fixing screw S3 is inserted and a vertical piece 32 having a screw insertion hole 32a through which the fixing screw S2 is inserted. It is formed in a substantially L shape.

  Since the lamp cover 3 is open at both ends in the longitudinal direction, when the lamp cover 3 is attached to the instrument body 2, the lamp body 3 and the lamp cover 3 are formed on both ends in the longitudinal direction of the instrument body 2. The fixture 8 is visible from the gap.

  Therefore, in the lighting fixture 1 of the present embodiment, end caps 4 that close the gap between the fixture main body 2 and the lamp cover 3 are attached to both ends in the longitudinal direction of the fixture main body 2.

  The end cap 4 is a synthetic resin molded product made of, for example, an insulating resin material, and is opposed to the instrument main body 2 at a predetermined interval in the direction along the width direction as shown in FIGS. A pair of plate-like attachment pieces 40 and a substantially fan-like connection piece 41 that integrally connects ends of one end side in the longitudinal direction (left-right direction in FIG. 1) of the pair of attachment pieces 40 are formed in a substantially U-shape. Has been. Further, as shown in FIG. 4B, the pair of attachment pieces 40 are connected to the connection piece 41 so that the predetermined interval (interval between the inner surfaces 40a facing each other in the attachment piece 40) increases as it goes downward. Has been. Further, as shown in FIG. 1, an engaging piece 41a is provided on the upper end edge of the connecting piece 41 so as to project toward the center in the longitudinal direction of the instrument body 2, and the end cap 4 is attached to the engaging piece 41a. An engagement hole 41b used when fixing to the main body 2 is penetrated in the thickness direction. Here, as shown in FIG. 4B, the end cap 4 is supported by bringing the inner surfaces 40a of the pair of attachment pieces 40 into contact with the pair of support protrusions 82a and 85a, respectively.

  On the other hand, the bulging portion 6a of the reflecting plate 6 is provided with an elastic member (spring member) 60 that engages with the engagement hole 41b provided in the engagement piece 41a of the end cap 4 as shown in FIG. . The elastic member 60 has an engaging portion 61 formed by cutting and raising a part of a metal plate having elasticity, for example. As shown in FIG. 1, the engaging portion 61 is formed in a substantially square shape in which the cross-sectional shape in the direction along the thickness direction of the instrument body 2 is convex downward. That is, the engaging portion 61 is inclined such that the distance between the side surfaces 61a and 61a becomes smaller as the side surfaces 61a and 61a along the longitudinal direction of the device body 2 go downward from the device body 2, respectively.

  The elastic member 60 is stored in the storage space through the opening 6d provided in the bulging portion 6a in a state where the engaging portion 61 protrudes from the lower surface side of the instrument body 2. The opening 6d is formed at a position communicating with the engagement hole 41b in the bulging portion 6a with the end cap 4 attached. Therefore, in a state where the end cap 4 is attached, the end cap 4 is fixed to the instrument body 2 by fitting the engaging portion 61 into the engaging hole 41b.

  When the end cap 4 is attached to the instrument body 2, the pair of attachment pieces 40 are inserted into the gap between the reflector 6 and the lamp cover 3 from the longitudinal end of the instrument body 2 as shown in FIG. By pushing in the center side of the main body 2 (in the direction of arrow B in FIG. 5), the socket 2 is attached to the instrument main body 2 as shown in FIG. At this time, both attachment pieces 40, 40 are supported in contact with the corresponding support protrusions 82a, 85a, and the engaging portion 61 of the elastic member 60 is locked at the opening edge of the engaging hole 41b. is doing.

  On the other hand, when the end cap 4 is removed from the instrument body 2, when the end cap 4 is held so as to sandwich both the attachment pieces 40, 40 and pulled out in the direction along the longitudinal direction of the instrument body 2, 61 is elastically biased toward the instrument main body 2 side (upward), the engagement state between the engagement portion 61 and the engagement hole 41 b is released, and the end cap 4 is removed from the instrument main body 2.

  Here, when the lamp 10 is mounted in the socket 7, the position of the lamp 10 with respect to the socket 7 is brought about by bringing the base 102 of the lamp 10 into contact with the notch 85 b of the support piece 85 erected from the instrument body 2 side. The lamp 10 is easily mounted on the socket 7. Therefore, as shown in FIGS. 7 and 8, the lamp 10 is not shifted to the position of the two-dot chain line C, and the lamp pin 103 provided on the base 102 of the lamp 10 is detached from the pin insertion groove 71 provided on the socket 7. As a result, the lamp 10 does not enter the gap between the socket 7 and the reflecting plate 6, so that the mounting workability of the lamp 10 is improved. Further, the support piece 85 is disposed so that the dimension from the facing surface 7a of the socket 7 to the support piece 85 in the longitudinal direction of the fixture body 2 is smaller than the dimension of the base 102 in the same direction. 7 is attached to the notch 85b of the support piece 85, so that the arc tube 101 does not hit the notch 85b and the arc tube 101 is not broken, and safety when the lamp 10 is mounted can be secured. .

  When the lamp 10 is turned on, the light emitted from the lamp 10 toward the socket 7 is reflected by the reflecting surface of the support body 85 on the center side in the longitudinal direction of the instrument body 2 as indicated by an arrow A in FIG. The Therefore, the amount of light irradiated in the light irradiation direction (downward in FIG. 1 in this embodiment) can be increased, so that the irradiation efficiency of the lighting fixture 1 is improved. Further, in a state where the lamp 10 is mounted in the socket 7, the support piece 85 is located at a boundary portion between the base 102 of the lamp 10 and the arc tube 101, so that the arc tube 101 is placed in the longitudinal center of the instrument body 2. All can be exposed. Therefore, since the irradiation light quantity of the lighting fixture 1 can be further increased, the irradiation efficiency of the lamp 10 is further improved. In addition, by providing the support piece 85, the support piece 85 functions as a blindfold for the connection line 70 and the like wired above the socket 7 in a state where the lamp 10 is mounted on the socket 7, so that the appearance is improved.

  In this embodiment, the case where the support piece 85 erected integrally with the fixing piece 81 of the fixture 8 is used as a reflection plate has been described as an example, but the reflection plate is not limited to this embodiment. The reflector may be provided separately. Further, the shape of the reflector is not limited to the present embodiment, and may be appropriately designed according to the shape of the lighting fixture that employs the reflector.

  Further, in the present embodiment, the case where the metal lamp cover 3 is used has been described as an example. However, the lamp cover 3 is not limited to the present embodiment, and can be any one that can prevent direct viewing of the lamp 10. It may be an opaque resin material.

It is principal part sectional drawing of the lighting fixture of this embodiment. It is an exploded perspective view same as the above. The fixture used for the above is shown, (a) is a perspective view, (b) is a side view. The principal part same as the above is shown, (a) is a bottom view partially broken, (b) is a side view. It is a state figure which shows the attachment state of the end cap used for the same as the above. The state which attached the end cap to the same as the above is shown, (a) is a front view, (b) is a side view. It is the state figure which looked at the state which mounts a lamp on the same from the side. It is the state figure which looked at the state which mounts a lamp on the same from the bottom. The lighting fixture of a prior art example is shown, (a) is a bottom view, (b) is a side view. It is a principal part detail drawing of a lighting fixture same as the above. The other lighting fixture same as the above is shown, (a) is a bottom view, (b) is a side view. It is a front view which shows the end cap used for another lighting fixture same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Appliance main body 3 Lamp cover 7 Lamp socket 10 Lamp 85 Support piece (reflector)
101 arc tube 102 base

Claims (2)

  The lamp body and the lamp body made of the caps provided at both ends of the lamp tube are arranged on one side, the lamp socket provided on the lamp body to which the lamp cap is mounted, and the lamp body opposite to the lamp body Reflected to reflect the light emitted from the lamp toward the lamp socket, arranged at the boundary between the lamp cover disposed on the side and preventing the lamp from being directly viewed and the arc tube in the lamp base when the lamp is mounted A lighting apparatus comprising a plate.   The lighting apparatus according to claim 1, wherein the reflection plate also serves as movement restriction means for restricting movement of the lamp toward the apparatus main body by contacting the lamp when the lamp is mounted.

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